public bool GenerateTerrainBuffers(HEU_SessionBase session, HAPI_NodeId nodeID, List<HAPI_PartInfo> volumeParts,
out List<HEU_LoadBufferVolume> volumeBuffers)
{
volumeBuffers = null;
if (volumeParts.Count == 0)
{
return true;
}
volumeBuffers = new List<HEU_LoadBufferVolume>();
int numParts = volumeParts.Count;
for (int i = 0; i < numParts; ++i)
{
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(nodeID, volumeParts[i].id, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
SetLog(HEU_LoadData.LoadStatus.ERROR, "This heightfield is not supported. Please check documentation.");
return false;
}
if (volumeInfo.xLength != volumeInfo.yLength)
{
SetLog(HEU_LoadData.LoadStatus.ERROR, "Non-square sized terrain not supported.");
return false;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
bool bHeightPart = volumeName.Equals("height");
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
HEU_LoadBufferVolumeLayer layer = new HEU_LoadBufferVolumeLayer();
layer._layerName = volumeName;
layer._partID = volumeParts[i].id;
layer._heightMapSize = volumeInfo.xLength;
Matrix4x4 volumeTransformMatrix = HEU_HAPIUtility.GetMatrixFromHAPITransform(ref volumeInfo.transform, false);
layer._position = HEU_HAPIUtility.GetPosition(ref volumeTransformMatrix);
Vector3 scale = HEU_HAPIUtility.GetScale(ref volumeTransformMatrix);
// Calculate real terrain size in both Houdini and Unity.
// The height values will be mapped over this terrain size.
float gridSpacingX = scale.x * 2f;
float gridSpacingY = scale.y * 2f;
layer._terrainSizeX = Mathf.Round((volumeInfo.xLength - 1) * gridSpacingX);
layer._terrainSizeY = Mathf.Round((volumeInfo.yLength - 1) * gridSpacingY);
// Get volume bounds for calculating position offset
session.GetVolumeBounds(nodeID, volumeParts[i].id,
out layer._minBounds.x, out layer._minBounds.y, out layer._minBounds.z,
out layer._maxBounds.x, out layer._maxBounds.y, out layer._maxBounds.z,
out layer._center.x, out layer._center.y, out layer._center.z);
LoadStringFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_DIFFUSE_ATTR, ref layer._diffuseTexturePath);
LoadStringFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_MASK_ATTR, ref layer._maskTexturePath);
LoadStringFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_NORMAL_ATTR, ref layer._normalTexturePath);
LoadFloatFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_NORMAL_SCALE_ATTR, ref layer._normalScale);
LoadFloatFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_METALLIC_ATTR, ref layer._metallic);
LoadFloatFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SMOOTHNESS_ATTR, ref layer._smoothness);
LoadLayerColorFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SPECULAR_ATTR, ref layer._specularColor);
LoadLayerVector2FromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_OFFSET_ATTR, ref layer._tileOffset);
LoadLayerVector2FromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_SIZE_ATTR, ref layer._tileSize);
// Get the height values from Houdini and find the min and max height range.
if (!HEU_GeometryUtility.GetHeightfieldValues(session, volumeInfo.xLength, volumeInfo.yLength, nodeID, volumeParts[i].id, ref layer._rawHeights, ref layer._minHeight, ref layer._maxHeight))
{
return false;
}
// TODO: Tried to replace above with this, but it flattens the heights
//layer._rawHeights = HEU_GeometryUtility.GetHeightfieldFromPart(_session, nodeID, volumeParts[i].id, "part", volumeInfo.xLength);
// Get the tile index, if it exists, for this part
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
HEU_GeneralUtility.GetAttribute(session, nodeID, volumeParts[i].id, "tile", ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
int tileIndex = 0;
if (tileAttrInfo.exists && tileAttrData.Length == 1)
{
tileIndex = tileAttrData[0];
}
// Add layer based on tile index
if (tileIndex >= 0)
{
HEU_LoadBufferVolume volumeBuffer = null;
for(int j = 0; j < volumeBuffers.Count; ++j)
{
if (volumeBuffers[j]._tileIndex == tileIndex)
{
volumeBuffer = volumeBuffers[j];
break;
}
}
if (volumeBuffer == null)
{
volumeBuffer = new HEU_LoadBufferVolume();
volumeBuffer.InitializeBuffer(volumeParts[i].id, volumeName, false, false);
volumeBuffer._tileIndex = tileIndex;
volumeBuffers.Add(volumeBuffer);
}
if (bHeightPart)
{
// Height layer always first layer
volumeBuffer._layers.Insert(0, layer);
volumeBuffer._heightMapSize = layer._heightMapSize;
volumeBuffer._terrainSizeX = layer._terrainSizeX;
volumeBuffer._terrainSizeY = layer._terrainSizeY;
volumeBuffer._heightRange = (layer._maxHeight - layer._minHeight);
}
else
{
volumeBuffer._layers.Add(layer);
}
}
Sleep();
}
// Each volume buffer is a self contained terrain tile
foreach(HEU_LoadBufferVolume volumeBuffer in volumeBuffers)
{
List<HEU_LoadBufferVolumeLayer> layers = volumeBuffer._layers;
//Debug.LogFormat("Heightfield: tile={0}, layers={1}", tile._tileIndex, layers.Count);
int heightMapSize = volumeBuffer._heightMapSize;
int numLayers = layers.Count;
if (numLayers > 0)
{
// Convert heightmap values from Houdini to Unity
volumeBuffer._heightMap = HEU_GeometryUtility.ConvertHeightMapHoudiniToUnity(heightMapSize, layers[0]._rawHeights, layers[0]._minHeight, layers[0]._maxHeight);
Sleep();
// Convert splatmap values from Houdini to Unity.
List<float[]> heightFields = new List<float[]>();
for(int m = 1; m < numLayers; ++m)
{
heightFields.Add(layers[m]._rawHeights);
}
volumeBuffer._splatMaps = HEU_GeometryUtility.ConvertHeightSplatMapHoudiniToUnity(heightMapSize, heightFields);
volumeBuffer._position = new Vector3((volumeBuffer._terrainSizeX + volumeBuffer._layers[0]._minBounds.x), volumeBuffer._layers[0]._minHeight + volumeBuffer._layers[0]._position.y, volumeBuffer._layers[0]._minBounds.z);
}
}
return true;
}
public static void ExecuteToolOperatorMultiple(string toolName, string toolPath, GameObject[] inputObjects)
{
GameObject outputObjectToSelect = null;
GameObject go = HEU_HAPIUtility.InstantiateHDA(toolPath, Vector3.zero, HEU_SessionManager.GetOrCreateDefaultSession(), false);
if (go == null)
{
HEU_Logger.LogWarningFormat("Failed to instantiate tool: {0}", toolName);
return;
}
HEU_HoudiniAssetRoot assetRoot = go.GetComponent<HEU_HoudiniAssetRoot>();
if (assetRoot != null)
{
HEU_HoudiniAsset asset = assetRoot._houdiniAsset;
HEU_SessionBase session = asset.GetAssetSession(true);
int numInputs = inputObjects.Length;
List<HEU_InputNode> inputNodes = asset.GetInputNodes();
if (inputNodes == null || inputNodes.Count == 0)
{
HEU_Logger.LogErrorFormat("Unable to assign input geometry due to no asset inputs on selected tool.");
}
else
{
// User could have selected any number of inputs objects, and asset could have any number of inputs.
// So use minimum of either to set input object into asset input.
int minInputCount = Mathf.Min(inputNodes.Count, numInputs);
for (int i = 0; i < minInputCount; ++i)
{
bool bShouldUseHDA = IsValidInputHDA(inputObjects[i]);
if (!bShouldUseHDA &&!IsValidInputMesh(inputObjects[i]))
{
continue;
}
else if (bShouldUseHDA && !IsValidInputHDA(inputObjects[i]))
{
continue;
}
GameObject inputObject = inputObjects[i];
HEU_InputNode inputNode = inputNodes[i];
inputNode.ResetInputNode(session);
if (!bShouldUseHDA)
{
inputNode.ChangeInputType(session, HEU_InputNode.InputObjectType.UNITY_MESH);
HEU_InputObjectInfo inputInfo = inputNode.AddInputEntryAtEndMesh(inputObject);
if (inputInfo != null)
{
inputInfo._useTransformOffset = false;
inputNode.KeepWorldTransform = true;
inputNode.PackGeometryBeforeMerging = false;
inputNode.RequiresUpload = true;
}
else
{
HEU_Logger.LogErrorFormat("Invalid input format: {0}", inputObject.gameObject.name);
}
}
else
{
inputNode.ChangeInputType(session, HEU_InputNode.InputObjectType.HDA);
HEU_InputHDAInfo inputHDAInfo = inputNode.AddInputEntryAtEndHDA(inputObject);
if (inputHDAInfo != null)
{
inputNode.KeepWorldTransform = true;
inputNode.PackGeometryBeforeMerging = false;
inputNode.RequiresUpload = true;
}
else
{
HEU_Logger.LogErrorFormat("Invalid input format: {0}", inputObject.gameObject.name);
}
}
}
asset.RequestCook(true, true, true, true);
outputObjectToSelect = assetRoot.gameObject;
}
}
if (outputObjectToSelect != null)
{
HEU_EditorUtility.SelectObject(outputObjectToSelect);
}
}
/// <summary>
/// Creates terrain from given volumeInfo for the given gameObject.
/// If gameObject has a valid Terrain component, then it is reused.
/// Similarly, if the Terrain component has a valid TerrainData, or if the given terrainData is valid, then it is used.
/// Otherwise a new TerrainData is created and set to the Terrain.
/// Populates the volumePositionOffset with the heightfield offset position.
/// Returns true if successfully created the terrain, otherwise false.
/// </summary>
/// <param name="session">Houdini Engine session to query heightfield data from</param>
/// <param name="volumeInfo">Volume info pertaining to the heightfield to generate the Terrain from</param>
/// <param name="geoID">The geometry ID</param>
/// <param name="partID">The part ID (height layer)</param>
/// <param name="gameObject">The target GameObject containing the Terrain component</param>
/// <param name="terrainData">A valid TerrainData to use, or if empty, a new one is created and populated</param>
/// <param name="volumePositionOffset">Heightfield offset</param>
/// <returns>True if successfully popupated the terrain</returns>
public static bool GenerateTerrainFromVolume(HEU_SessionBase session, ref HAPI_VolumeInfo volumeInfo, HAPI_NodeId geoID, HAPI_PartId partID,
GameObject gameObject, ref TerrainData terrainData, out Vector3 volumePositionOffset, ref Terrain terrain)
{
volumePositionOffset = Vector3.zero;
if (volumeInfo.zLength == 1 && volumeInfo.tupleSize == 1)
{
// Heightfields will be converted to terrain in Unity.
// Unity requires terrainData.heightmapResolution to be square power of two plus 1 (eg. 513, 257, 129, 65).
// Houdini gives volumeInfo.xLength and volumeInfo.yLength which are the number of height values per dimension.
// Note that volumeInfo.xLength and volumeInfo.yLength is equal to Houdini heightfield size / grid spacing.
// The heightfield grid spacing is given as volumeTransformMatrix.scale but divided by 2 (grid spacing / 2 = volumeTransformMatrix.scale).
// It is recommended to use grid spacing of 2.
// Use the volumeInfo.transform to get the actual heightfield position and size.
Matrix4x4 volumeTransformMatrix = HEU_HAPIUtility.GetMatrixFromHAPITransform(ref volumeInfo.transform, false);
Vector3 position = HEU_HAPIUtility.GetPosition(ref volumeTransformMatrix);
Vector3 scale = HEU_HAPIUtility.GetScale(ref volumeTransformMatrix);
// Calculate real terrain size in both Houdini and Unity.
// The height values will be mapped over this terrain size.
float gridSpacingX = scale.x * 2f;
float gridSpacingY = scale.y * 2f;
float terrainSizeX = Mathf.Round((volumeInfo.xLength - 1) * gridSpacingX);
float terrainSizeY = Mathf.Round((volumeInfo.yLength - 1) * gridSpacingY);
// Test size
//float terrainSizeX = Mathf.Round((volumeInfo.xLength) * gridSpacingX);
//float terrainSizeY = Mathf.Round((volumeInfo.yLength) * gridSpacingY);
//Debug.LogFormat("GS = {0},{1},{2}. SX = {1}. SY = {2}", gridSpacingX, gridSpacingY, terrainSizeX, terrainSizeY);
//Debug.LogFormat("HeightField Pos:{0}, Scale:{1}", position, scale.ToString("{0.00}"));
//Debug.LogFormat("HeightField tileSize:{0}, xLength:{1}, yLength:{2}", volumeInfo.tileSize.ToString("{0.00}"), volumeInfo.xLength.ToString("{0.00}"), volumeInfo.yLength.ToString("{0.00}"));
//Debug.LogFormat("HeightField Terrain Size x:{0}, y:{1}", terrainSizeX.ToString("{0.00}"), terrainSizeY.ToString("{0.00}"));
//Debug.LogFormat("HeightField minX={0}, minY={1}, minZ={2}", volumeInfo.minX.ToString("{0.00}"), volumeInfo.minY.ToString("{0.00}"), volumeInfo.minZ.ToString("{0.00}"));
const int UNITY_MINIMUM_HEIGHTMAP_RESOLUTION = 33;
if (terrainSizeX < UNITY_MINIMUM_HEIGHTMAP_RESOLUTION || terrainSizeY < UNITY_MINIMUM_HEIGHTMAP_RESOLUTION)
{
Debug.LogWarningFormat("Unity Terrain has a minimum heightmap resolution of {0}. This HDA heightmap size is {1}x{2}."
+ "\nPlease resize the terrain to a value higher than this.",
UNITY_MINIMUM_HEIGHTMAP_RESOLUTION, terrainSizeX, terrainSizeY);
return false;
}
bool bNewTerrain = false;
bool bNewTerrainData = false;
terrain = gameObject.GetComponent<Terrain>();
if (terrain == null)
{
terrain = gameObject.AddComponent<Terrain>();
bNewTerrain = true;
}
TerrainCollider collider = HEU_GeneralUtility.GetOrCreateComponent<TerrainCollider>(gameObject);
// Look up terrain material, if specified, on the height layer
string specifiedTerrainMaterialName = HEU_GeneralUtility.GetMaterialAttributeValueFromPart(session,
geoID, partID);
// This ensures to reuse existing terraindata, and only creates new if none exist or none provided
if (terrain.terrainData == null)
{
if (terrainData == null)
{
terrainData = new TerrainData();
bNewTerrainData = true;
}
terrain.terrainData = terrainData;
SetTerrainMaterial(terrain, specifiedTerrainMaterialName);
}
terrainData = terrain.terrainData;
collider.terrainData = terrainData;
if (bNewTerrain)
{
#if UNITY_2018_3_OR_NEWER
terrain.allowAutoConnect = true;
// This has to be set after setting material
terrain.drawInstanced = true;
#endif
}
// Heightmap resolution must be square power-of-two plus 1.
// Unity will automatically resize terrainData.heightmapResolution so need to handle the changed size (if Unity changed it).
int heightMapResolution = volumeInfo.xLength;
terrainData.heightmapResolution = heightMapResolution;
int terrainResizedDelta = terrainData.heightmapResolution - heightMapResolution;
if (terrainResizedDelta < 0)
{
Debug.LogWarningFormat("Note that Unity automatically resized terrain resolution to {0} from {1}. Use terrain size of power of two plus 1, and grid spacing of 2.", heightMapResolution, terrainData.heightmapResolution);
heightMapResolution = terrainData.heightmapResolution;
}
else if (terrainResizedDelta > 0)
{
Debug.LogErrorFormat("Unsupported terrain size. Use terrain size of power of two plus 1, and grid spacing of 2. Given size is {0} but Unity resized it to {1}.", heightMapResolution, terrainData.heightmapResolution);
return false;
}
int mapWidth = volumeInfo.xLength;
int mapHeight = volumeInfo.yLength;
// Get the converted height values from Houdini and find the min and max height range.
float minHeight = 0;
float maxHeight = 0;
float heightRange = 0;
bool bUseHeightRangeOverride = true;
float[] normalizedHeights = GetNormalizedHeightmapFromPartWithMinMax(session, geoID, partID,
volumeInfo.xLength, volumeInfo.yLength, ref minHeight, ref maxHeight, ref heightRange,
bUseHeightRangeOverride);
float[,] unityHeights = ConvertHeightMapHoudiniToUnity(heightMapResolution, heightMapResolution, normalizedHeights);
// The terrainData.baseMapResolution is not set here, but rather left to whatever default Unity uses
// The terrainData.alphamapResolution is set later when setting the alphamaps.
if (bNewTerrainData)
{
// 32 is the default for resolutionPerPatch
const int detailResolution = 1024;
const int resolutionPerPatch = 32;
terrainData.SetDetailResolution(detailResolution, resolutionPerPatch);
}
// Note SetHeights must be called before setting size in next line, as otherwise
// the internal terrain size will not change after setting the size.
terrainData.SetHeights(0, 0, unityHeights);
// Note that Unity uses a default height range of 600 when a flat terrain is created.
// Without a non-zero value for the height range, user isn't able to draw heights.
// Therefore, set 600 as the value if height range is currently 0 (due to flat heightfield).
if (heightRange == 0)
{
heightRange = terrainData.size.y > 1 ? terrainData.size.y : 600;
}
terrainData.size = new Vector3(terrainSizeX, heightRange, terrainSizeY);
terrain.Flush();
// Unity Terrain has origin at bottom left, whereas Houdini uses centre of terrain.
// Use volume bounds to set position offset when using split tiles
float xmin, xmax, zmin, zmax, ymin, ymax, xcenter, ycenter, zcenter;
session.GetVolumeBounds(geoID, partID, out xmin, out ymin, out zmin, out xmax, out ymax, out zmax, out xcenter,
out ycenter, out zcenter);
//Debug.LogFormat("xmin: {0}, xmax: {1}, ymin: {2}, ymax: {3}, zmin: {4}, zmax: {5}, xc: {6}, yc: {7}, zc: {8}",
// xmin, xmax, ymin, ymax, zmin, zmax, xcenter, ycenter, zcenter);
// Offset position is based on size of heightfield
float offsetX = (float)heightMapResolution / (float)mapWidth;
float offsetZ = (float)heightMapResolution / (float)mapHeight;
//Debug.LogFormat("offsetX: {0}, offsetZ: {1}", offsetX, offsetZ);
// Use y position from attribute if user has set it
float ypos = position.y + minHeight;
float userYPos;
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_YPOS, out userYPos))
{
ypos = userYPos;
}
// TODO: revisit how the position is calculated
volumePositionOffset = new Vector3((terrainSizeX + xmin) * offsetX, ypos, zmin * offsetZ);
// Test position
//volumePositionOffset = new Vector3(xcenter + mapWidth, ycenter, zcenter - mapHeight);
return true;
}
else
{
Debug.LogWarning("Non-heightfield volume type not supported!");
}
return false;
}
public bool UploadAttributeViaMeshInput(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID)
{
// Need to upload same geometry as in the original Editable node, and with custom attribute values.
// First get the current geometry info and data.
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if(!session.GetGeoInfo(geoID, ref geoInfo))
{
return false;
}
HAPI_PartInfo oldPartInfo = new HAPI_PartInfo();
if(!session.GetPartInfo(geoID, partID, ref oldPartInfo))
{
return false;
}
int pointCount = oldPartInfo.pointCount;
int vertexCount = oldPartInfo.vertexCount;
int faceCount = oldPartInfo.faceCount;
// Get facecounts
int[] faceCountData = new int[faceCount];
if(!HEU_GeneralUtility.GetArray2Arg(geoID, partID, session.GetFaceCounts, faceCountData, 0, faceCount))
{
return false;
}
// Get indices
int[] vertexList = new int[vertexCount];
if (!HEU_GeneralUtility.GetArray2Arg(geoID, partID, session.GetVertexList, vertexList, 0, vertexCount))
{
return false;
}
List<HEU_AttributeData> pointAttributeDatas = new List<HEU_AttributeData>();
List<HEU_AttributeData> vertexAttributeDatas = new List<HEU_AttributeData>();
List<HEU_AttributeData> primitiveAttributeDatas = new List<HEU_AttributeData>();
List<HEU_AttributeData> detailAttributeDatas = new List<HEU_AttributeData>();
// Get all attributes, including editted
GetAttributesList(session, geoID, partID, pointAttributeDatas, HAPI_AttributeOwner.HAPI_ATTROWNER_POINT, oldPartInfo.pointAttributeCount);
GetAttributesList(session, geoID, partID, vertexAttributeDatas, HAPI_AttributeOwner.HAPI_ATTROWNER_VERTEX, oldPartInfo.vertexAttributeCount);
GetAttributesList(session, geoID, partID, primitiveAttributeDatas, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM, oldPartInfo.primitiveAttributeCount);
GetAttributesList(session, geoID, partID, detailAttributeDatas, HAPI_AttributeOwner.HAPI_ATTROWNER_DETAIL, oldPartInfo.detailAttributeCount);
// Now create new geometry info and populate it
HAPI_PartInfo newPartInfo = new HAPI_PartInfo();
newPartInfo.faceCount = faceCount;
newPartInfo.vertexCount = vertexCount;
newPartInfo.pointCount = pointCount;
newPartInfo.pointAttributeCount = oldPartInfo.pointAttributeCount;
newPartInfo.vertexAttributeCount = oldPartInfo.vertexAttributeCount;
newPartInfo.primitiveAttributeCount = oldPartInfo.primitiveAttributeCount;
newPartInfo.detailAttributeCount = oldPartInfo.detailAttributeCount;
int newPartID = partID;
if (!session.SetPartInfo(geoID, newPartID, ref newPartInfo))
{
return false;
}
if (!HEU_GeneralUtility.SetArray2Arg(geoID, newPartID, session.SetFaceCount, faceCountData, 0, newPartInfo.faceCount))
{
return false;
}
if (!HEU_GeneralUtility.SetArray2Arg(geoID, newPartID, session.SetVertexList, vertexList, 0, newPartInfo.vertexCount))
{
return false;
}
// Upload all attributes, include editted
UpdateAttributeList(session, geoID, partID, pointAttributeDatas);
UpdateAttributeList(session, geoID, partID, vertexAttributeDatas);
UpdateAttributeList(session, geoID, partID, primitiveAttributeDatas);
UpdateAttributeList(session, geoID, partID, detailAttributeDatas);
return session.CommitGeo(geoID);
}
public void GenerateTransform(HEU_SessionBase session, HEU_Parameters parameters)
{
HAPI_TransformEuler transformEuler = new HAPI_TransformEuler(true);
transformEuler.rstOrder = _rstOrder;
transformEuler.rotationOrder = _xyzOrder;
transformEuler.position[0] = 0;
transformEuler.position[1] = 0;
transformEuler.position[2] = 0;
transformEuler.rotationEuler[0] = 0;
transformEuler.rotationEuler[1] = 0;
transformEuler.rotationEuler[2] = 0;
transformEuler.scale[0] = 1;
transformEuler.scale[1] = 1;
transformEuler.scale[2] = 1;
if (IsSpecialRSTOrder(transformEuler.rstOrder) && _handleParamTranslateBinding != null)
{
HEU_ParameterData parmData = parameters.GetParameterWithParmID(_handleParamTranslateBinding._parmID);
if (parmData != null && !parmData._parmInfo.invisible)
{
transformEuler.position[0] = parmData._floatValues[0];
transformEuler.position[1] = parmData._floatValues[1];
transformEuler.position[2] = parmData._floatValues[2];
}
}
if(_handleParamRotateBinding != null)
{
HEU_ParameterData parmData = parameters.GetParameterWithParmID(_handleParamRotateBinding._parmID);
if (parmData != null && !parmData._parmInfo.invisible)
{
transformEuler.rotationEuler[0] = parmData._floatValues[0];
transformEuler.rotationEuler[1] = parmData._floatValues[1];
transformEuler.rotationEuler[2] = parmData._floatValues[2];
}
}
if(_handleParamScaleBinding != null)
{
HEU_ParameterData parmData = parameters.GetParameterWithParmID(_handleParamScaleBinding._parmID);
if (parmData != null && !parmData._parmInfo.invisible)
{
transformEuler.scale[0] = parmData._floatValues[0];
transformEuler.scale[1] = parmData._floatValues[1];
transformEuler.scale[2] = parmData._floatValues[2];
}
}
if (!session.ConvertTransform(ref transformEuler, HAPI_RSTOrder.HAPI_SRT, HAPI_XYZOrder.HAPI_ZXY, out _convertedTransformEuler))
{
return;
}
// Convert to left-handed Unity
_convertedTransformEuler.position[0] = -_convertedTransformEuler.position[0];
_convertedTransformEuler.rotationEuler[1] = -_convertedTransformEuler.rotationEuler[1];
_convertedTransformEuler.rotationEuler[2] = -_convertedTransformEuler.rotationEuler[2];
if (IsSpecialRSTOrder(transformEuler.rstOrder))
{
_handlePosition = new Vector3(_convertedTransformEuler.position[0], _convertedTransformEuler.position[1], _convertedTransformEuler.position[2]);
}
else if (_handleParamTranslateBinding != null)
{
_handlePosition = new Vector3(-transformEuler.position[0], transformEuler.position[1], transformEuler.position[2]);
}
else
{
_handlePosition = Vector3.zero;
}
_handleRotation = Quaternion.Euler(_convertedTransformEuler.rotationEuler[0], _convertedTransformEuler.rotationEuler[1], _convertedTransformEuler.rotationEuler[2]);
if (_handleParamScaleBinding != null)
{
_handleScale = new Vector3(transformEuler.scale[0], transformEuler.scale[1], transformEuler.scale[2]);
}
else
{
_handleScale = Vector3.one;
}
}
private HEU_LoadBufferInstancer GeneratePointAttributeInstancerBuffer(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID,
string partName, HAPI_PartInfo partInfo)
{
int numInstances = partInfo.pointCount;
if (numInstances <= 0)
{
return null;
}
// Find type of instancer
string instanceAttrName = HEU_PluginSettings.InstanceAttr;
string unityInstanceAttrName = HEU_PluginSettings.UnityInstanceAttr;
string instancePrefixAttrName = HEU_Defines.DEFAULT_INSTANCE_PREFIX_ATTR;
HAPI_AttributeInfo instanceAttrInfo = new HAPI_AttributeInfo();
HAPI_AttributeInfo unityInstanceAttrInfo = new HAPI_AttributeInfo();
HAPI_AttributeInfo instancePrefixAttrInfo = new HAPI_AttributeInfo();
HEU_GeneralUtility.GetAttributeInfo(session, geoID, partID, instanceAttrName, ref instanceAttrInfo);
HEU_GeneralUtility.GetAttributeInfo(session, geoID, partID, unityInstanceAttrName, ref unityInstanceAttrInfo);
if (unityInstanceAttrInfo.exists)
{
// Object instancing via existing Unity object (path from point attribute)
HAPI_Transform[] instanceTransforms = new HAPI_Transform[numInstances];
if (!HEU_GeneralUtility.GetArray3Arg(geoID, partID, HAPI_RSTOrder.HAPI_SRT, session.GetInstanceTransformsOnPart, instanceTransforms, 0, numInstances))
{
return null;
}
string[] instancePrefixes = null;
HEU_GeneralUtility.GetAttributeInfo(session, geoID, partID, instancePrefixAttrName, ref instancePrefixAttrInfo);
if (instancePrefixAttrInfo.exists)
{
instancePrefixes = HEU_GeneralUtility.GetAttributeStringData(session, geoID, partID, instancePrefixAttrName, ref instancePrefixAttrInfo);
}
string[] assetPaths = null;
// Attribute owner type determines whether to use single (detail) or multiple (point) asset(s) as source
if (unityInstanceAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_POINT || unityInstanceAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_DETAIL)
{
assetPaths = HEU_GeneralUtility.GetAttributeStringData(session, geoID, partID, unityInstanceAttrName, ref unityInstanceAttrInfo);
}
else
{
// Other attribute owned types are unsupported
SetLog(HEU_LoadData.LoadStatus.ERROR, string.Format("Unsupported attribute owner {0} for attribute {1}",
unityInstanceAttrInfo.owner, unityInstanceAttrName));
return null;
}
if (assetPaths == null)
{
SetLog(HEU_LoadData.LoadStatus.ERROR, "Unable to get instanced asset path from attribute!");
return null;
}
HEU_LoadBufferInstancer instancerBuffer = new HEU_LoadBufferInstancer();
instancerBuffer.InitializeBuffer(partID, partName, partInfo.isInstanced, true);
instancerBuffer._instanceTransforms = instanceTransforms;
instancerBuffer._instancePrefixes = instancePrefixes;
instancerBuffer._assetPaths = assetPaths;
HAPI_AttributeInfo collisionGeoAttrInfo = new HAPI_AttributeInfo();
HEU_GeneralUtility.GetAttributeInfo(session, geoID, partID, HEU_Defines.DEFAULT_COLLISION_GEO, ref collisionGeoAttrInfo);
if (collisionGeoAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_POINT
|| collisionGeoAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_DETAIL)
{
instancerBuffer._collisionAssetPaths = HEU_GeneralUtility.GetAttributeStringData(session, geoID, partID, HEU_Defines.DEFAULT_COLLISION_GEO, ref collisionGeoAttrInfo);
}
return instancerBuffer;
}
else if (instanceAttrInfo.exists)
{
// Object instancing via internal object path is not supported
SetLog(HEU_LoadData.LoadStatus.ERROR, string.Format("Object instancing is not supported (part {0})!", partName));
}
else
{
// Standard object instancing via single Houdini object is not supported
SetLog(HEU_LoadData.LoadStatus.ERROR, string.Format("Object instancing is not supported (part {0})!", partName));
}
return null;
}
private void PopulateAttributeData(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID, HEU_AttributeData attributeData, ref HAPI_AttributeInfo attributeInfo)
{
attributeData._attributeInfo = attributeInfo;
int tupleSize = attributeInfo.tupleSize;
int attributeCount = attributeInfo.count;
int arraySize = attributeCount * tupleSize;
// First reset arrays if the type had changed since last sync
if ((attributeInfo.storage == HAPI_StorageType.HAPI_STORAGETYPE_INT && attributeData._attributeType != HEU_AttributeData.AttributeType.INT) ||
(attributeInfo.storage == HAPI_StorageType.HAPI_STORAGETYPE_FLOAT && attributeData._attributeType != HEU_AttributeData.AttributeType.FLOAT) ||
(attributeInfo.storage == HAPI_StorageType.HAPI_STORAGETYPE_STRING && attributeData._attributeType != HEU_AttributeData.AttributeType.STRING))
{
// Reset arrays if type is different
attributeData._floatValues = null;
attributeData._stringValues = null;
attributeData._intValues = null;
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
if(attributeInfo.storage == HAPI_StorageType.HAPI_STORAGETYPE_INT)
{
attributeData._attributeType = HEU_AttributeData.AttributeType.INT;
}
else if (attributeInfo.storage == HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
attributeData._attributeType = HEU_AttributeData.AttributeType.FLOAT;
}
else if (attributeInfo.storage == HAPI_StorageType.HAPI_STORAGETYPE_STRING)
{
attributeData._attributeType = HEU_AttributeData.AttributeType.STRING;
}
}
// Make sure the internal array is correctly sized for syncing.
if (attributeData._attributeType == HEU_AttributeData.AttributeType.INT)
{
if (attributeData._intValues == null)
{
attributeData._intValues = new int[arraySize];
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
}
else if (attributeData._intValues.Length != arraySize)
{
System.Array.Resize<int>(ref attributeData._intValues, arraySize);
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
}
attributeData._floatValues = null;
attributeData._stringValues = null;
if (attributeData._attributeState == HEU_AttributeData.AttributeState.INVALID)
{
int[] data = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attributeData._name, ref attributeInfo, ref data, session.GetAttributeIntData);
for (int i = 0; i < attributeCount; ++i)
{
for (int tuple = 0; tuple < tupleSize; ++tuple)
{
attributeData._intValues[i * tupleSize + tuple] = data[i * tupleSize + tuple];
}
}
}
}
else if (attributeData._attributeType == HEU_AttributeData.AttributeType.FLOAT)
{
if (attributeData._floatValues == null)
{
attributeData._floatValues = new float[arraySize];
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
}
else if (attributeData._floatValues.Length != arraySize)
{
System.Array.Resize<float>(ref attributeData._floatValues, arraySize);
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
}
attributeData._intValues = null;
attributeData._stringValues = null;
if (attributeData._attributeState == HEU_AttributeData.AttributeState.INVALID)
{
float[] data = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attributeData._name, ref attributeInfo, ref data, session.GetAttributeFloatData);
for (int i = 0; i < attributeCount; ++i)
{
for (int tuple = 0; tuple < tupleSize; ++tuple)
{
attributeData._floatValues[i * tupleSize + tuple] = data[i * tupleSize + tuple];
}
}
}
}
else if (attributeData._attributeType == HEU_AttributeData.AttributeType.STRING)
{
if (attributeData._stringValues == null)
{
attributeData._stringValues = new string[arraySize];
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
}
else if (attributeData._stringValues.Length != arraySize)
{
System.Array.Resize<string>(ref attributeData._stringValues, arraySize);
attributeData._attributeState = HEU_AttributeData.AttributeState.INVALID;
}
attributeData._intValues = null;
attributeData._floatValues = null;
if (attributeData._attributeState == HEU_AttributeData.AttributeState.INVALID)
{
HAPI_StringHandle[] data = new HAPI_StringHandle[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attributeData._name, ref attributeInfo, ref data, session.GetAttributeStringData);
for (int i = 0; i < attributeCount; ++i)
{
for (int tuple = 0; tuple < tupleSize; ++tuple)
{
HAPI_StringHandle stringHandle = data[i * tupleSize + tuple];
attributeData._stringValues[i * tupleSize + tuple] = HEU_SessionManager.GetString(stringHandle, session);
}
}
}
}
SetAttributeDataSyncd(attributeData);
}
protected virtual void SetupLoadTask(HEU_SessionBase session)
{
}
/// <summary>
/// Fill up the given detailPrototype with values from the specified heightfield part.
/// </summary>
/// <param name="session">Houdini Engine session to query</param>
/// <param name="geoID">The geometry ID in Houdini</param>
/// <param name="partID">The part ID in Houdini</param>
/// <param name="detailPrototype">The detail prototype object to populate</param>
public static void PopulateDetailPrototype(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID,
ref HEU_DetailPrototype detailPrototype)
{
// Get the detail prototype properties from attributes on this layer
if (detailPrototype == null)
{
detailPrototype = new HEU_DetailPrototype();
}
HAPI_AttributeInfo prefabAttrInfo = new HAPI_AttributeInfo();
string[] prefabPaths = HEU_GeneralUtility.GetAttributeStringData(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_PREFAB, ref prefabAttrInfo);
if (prefabAttrInfo.exists && prefabPaths.Length >= 1)
{
detailPrototype._prototypePrefab = prefabPaths[0];
}
HAPI_AttributeInfo textureAttrInfo = new HAPI_AttributeInfo();
string[] texturePaths = HEU_GeneralUtility.GetAttributeStringData(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_TEXTURE, ref textureAttrInfo);
if (textureAttrInfo.exists && texturePaths.Length >= 1)
{
detailPrototype._prototypeTexture = texturePaths[0];
}
float fvalue = 0;
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_BENDFACTOR, out fvalue))
{
detailPrototype._bendFactor = fvalue;
}
Color color = Color.white;
if (HEU_GeneralUtility.GetAttributeColorSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_DRYCOLOR, ref color))
{
detailPrototype._dryColor = color;
}
if (HEU_GeneralUtility.GetAttributeColorSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_HEALTHYCOLOR, ref color))
{
detailPrototype._healthyColor = color;
}
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_MAXHEIGHT, out fvalue))
{
detailPrototype._maxHeight = fvalue;
}
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_MAXWIDTH, out fvalue))
{
detailPrototype._maxWidth = fvalue;
}
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_MINHEIGHT, out fvalue))
{
detailPrototype._minHeight = fvalue;
}
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_MINWIDTH, out fvalue))
{
detailPrototype._minWidth = fvalue;
}
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_NOISESPREAD, out fvalue))
{
detailPrototype._noiseSpread = fvalue;
}
int iValue = 0;
if (HEU_GeneralUtility.GetAttributeIntSingle(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_PROTOTYPE_RENDERMODE, out iValue))
{
detailPrototype._renderMode = iValue;
}
}
/// <summary>
/// Return Houdini Engine installation and session information.
/// Tries to use existing or creates new session to find information.
/// </summary>
/// <returns>String containing installation and session information.</returns>
public static string GetHoudiniEngineInstallationInfo()
{
#if HOUDINIENGINEUNITY_ENABLED
StringBuilder sb = new StringBuilder();
sb.AppendFormat("Required Houdini Version: {0}.{1}.{2}\nRequired Houdini Engine Version: {3}.{4}.{5}\n\n",
HEU_HoudiniVersion.HOUDINI_MAJOR,
HEU_HoudiniVersion.HOUDINI_MINOR,
HEU_HoudiniVersion.HOUDINI_BUILD,
HEU_HoudiniVersion.HOUDINI_ENGINE_MAJOR,
HEU_HoudiniVersion.HOUDINI_ENGINE_MINOR,
HEU_HoudiniVersion.HOUDINI_ENGINE_API);
// Check if existing session is valid, or create a new session. Then query installation information.
HEU_SessionBase session = HEU_SessionManager.GetDefaultSession();
if (session != null && session.IsSessionValid())
{
int hMajor = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_MAJOR);
int hMinor = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_MINOR);
int hBuild = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_BUILD);
int heuPatch = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_PATCH);
int heuMajor = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_ENGINE_MAJOR);
int heuMinor = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_ENGINE_MINOR);
int heuAPI = session.GetEnvInt(HAPI_EnvIntType.HAPI_ENVINT_VERSION_HOUDINI_ENGINE_API);
sb.AppendFormat("Installed Houdini Version: {0}.{1}.{2}{3}\n", hMajor, hMinor, hBuild, (heuPatch > 0) ? "." + heuPatch.ToString() : "");
sb.AppendFormat("Installed Houdini Engine Version: {0}.{1}.{2}\n\n", heuMajor, heuMinor, heuAPI);
sb.AppendFormat("Houdini Binaries Path: {0}\n", HEU_Platform.GetHoudiniEnginePath() + HEU_HoudiniVersion.HAPI_BIN_PATH);
sb.AppendFormat("Unity Plugin Version: {0}\n\n", HEU_HoudiniVersion.UNITY_PLUGIN_VERSION);
HEU_SessionData sessionData = session.GetSessionData();
if (sessionData != null)
{
sb.AppendFormat("Session ID: {0}\n", sessionData.SessionID);
sb.AppendFormat("Session Type: {0}\n", sessionData.SessionType);
sb.AppendFormat("Process ID: {0}\n", sessionData.ProcessID);
if (sessionData.SessionType == HAPI_SessionType.HAPI_SESSION_THRIFT)
{
sb.AppendFormat("Pipe name: {0}\n", sessionData.PipeName);
}
sb.AppendLine();
}
sb.Append("License Type Acquired: ");
HAPI_License license = HEU_SessionManager.GetCurrentLicense(false);
switch (license)
{
case HAPI_License.HAPI_LICENSE_NONE: sb.Append("None\n"); break;
case HAPI_License.HAPI_LICENSE_HOUDINI_ENGINE: sb.Append("Houdini Engine\n"); break;
case HAPI_License.HAPI_LICENSE_HOUDINI: sb.Append("Houdini (Escape)\n"); break;
case HAPI_License.HAPI_LICENSE_HOUDINI_FX: sb.Append("Houdini FX\n"); break;
case HAPI_License.HAPI_LICENSE_HOUDINI_ENGINE_INDIE: sb.Append("Houdini Engine Indie"); break;
case HAPI_License.HAPI_LICENSE_HOUDINI_INDIE: sb.Append("Houdini Indie\n"); break;
default: sb.Append("Unknown\n"); break;
}
}
else // Unable to establish a session
{
sb.AppendLine("Unable to detect Houdini Engine installation.");
sb.AppendLine("License Type Acquired: Unknown\n");
if (session != null)
{
sb.AppendLine("Failure possibly due to: " + session.GetLastSessionError());
}
}
sb.AppendLine();
sb.Append("PATH: \n" + GetEnvironmentPath());
Debug.Log(sb.ToString());
return(sb.ToString());
#else
return("");
#endif
}
HAPI_NodeId GetParentNodeID(HEU_SessionBase session)
{
HAPI_NodeInfo nodeInfo = new HAPI_NodeInfo();
return((session.GetNodeInfo(_cookNodeID, ref nodeInfo, false)) ? nodeInfo.parentId : -1);
}
/// <summary>
/// Creates a new input asset in scene, as well as in a Houdini session.
/// </summary>
/// <returns>A valid input asset gameobject or null if failed.</returns>
public static GameObject CreateNewInputAsset(Transform parentTransform = null, HEU_SessionBase session = null, bool bBuildAsync = true)
{
return(CreateNewAsset(HEU_HoudiniAsset.HEU_AssetType.TYPE_INPUT, "HoudiniInput", parentTransform, session, bBuildAsync));
}
public static GameObject CreateNewAsset(HEU_HoudiniAsset.HEU_AssetType assetType, string rootName = "HoudiniAsset", Transform parentTransform = null, HEU_SessionBase session = null, bool bBuildAsync = true)
{
if (session == null)
{
session = HEU_SessionManager.GetOrCreateDefaultSession();
}
if (!session.IsSessionValid())
{
Debug.LogWarning("Invalid Houdini Engine session!");
return(null);
}
// This will be the root GameObject for the HDA. Adding HEU_HoudiniAssetRoot
// allows to use a custom Inspector.
GameObject rootGO = new GameObject();
HEU_HoudiniAssetRoot assetRoot = rootGO.AddComponent <HEU_HoudiniAssetRoot>();
// Set the game object's name to the asset's name
rootGO.name = string.Format("{0}{1}", rootName, rootGO.GetInstanceID());
// Under the root, we'll add the HEU_HoudiniAsset onto another GameObject
// This will be marked as EditorOnly to strip out for builds
GameObject hdaGEO = new GameObject(HEU_PluginSettings.HDAData_Name);
hdaGEO.transform.parent = rootGO.transform;
// This holds all Houdini Engine data
HEU_HoudiniAsset asset = hdaGEO.AddComponent <HEU_HoudiniAsset>();
// Marking as EditorOnly to be excluded from builds
if (HEU_GeneralUtility.DoesUnityTagExist(HEU_PluginSettings.EditorOnly_Tag))
{
hdaGEO.tag = HEU_PluginSettings.EditorOnly_Tag;
}
// Bind the root to the asset
assetRoot._houdiniAsset = asset;
// Populate asset with what we know
asset.SetupAsset(assetType, null, rootGO, session);
// Build it in Houdini Engine
asset.RequestReload(bBuildAsync);
if (parentTransform != null)
{
rootGO.transform.parent = parentTransform;
rootGO.transform.localPosition = Vector3.zero;
}
else
{
rootGO.transform.position = Vector3.zero;
}
return(rootGO);
}
/// <summary>
/// Load and instantiate an HDA asset in Unity and Houdini, for the asset located at given path.
/// </summary>
/// <param name="filePath">Full path to the HDA in Unity project</param>
/// <param name="initialPosition">Initial location to create the instance in Unity.</param>
/// <returns>Returns the newly created gameobject for the asset in the scene, or null if creation failed.</returns>
public static GameObject InstantiateHDA(string filePath, Vector3 initialPosition, HEU_SessionBase session, bool bBuildAsync)
{
if (filePath == null || !HEU_Platform.DoesFileExist(filePath))
{
return(null);
}
// This will be the root GameObject for the HDA. Adding HEU_HoudiniAssetRoot
// allows to use a custom Inspector.
GameObject rootGO = new GameObject(HEU_Defines.HEU_DEFAULT_ASSET_NAME);
HEU_HoudiniAssetRoot assetRoot = rootGO.AddComponent <HEU_HoudiniAssetRoot>();
// Under the root, we'll add the HEU_HoudiniAsset onto another GameObject
// This will be marked as EditorOnly to strip out for builds
GameObject hdaGEO = new GameObject(HEU_PluginSettings.HDAData_Name);
hdaGEO.transform.parent = rootGO.transform;
// This holds all Houdini Engine data
HEU_HoudiniAsset asset = hdaGEO.AddComponent <HEU_HoudiniAsset>();
// Marking as EditorOnly to be excluded from builds
if (HEU_GeneralUtility.DoesUnityTagExist(HEU_PluginSettings.EditorOnly_Tag))
{
hdaGEO.tag = HEU_PluginSettings.EditorOnly_Tag;
}
// Bind the root to the asset
assetRoot._houdiniAsset = asset;
// Populate asset with what we know
asset.SetupAsset(HEU_HoudiniAsset.HEU_AssetType.TYPE_HDA, filePath, rootGO, session);
// Build it in Houdini Engine
asset.RequestReload(bBuildAsync);
// Apply Unity transform and possibly upload to Houdini Engine
rootGO.transform.position = initialPosition;
Debug.LogFormat("{0}: Created new HDA asset from {1} of type {2}.", HEU_Defines.HEU_NAME, filePath, asset.AssetType);
return(rootGO);
}
public bool GenerateTerrainBuffers(HEU_SessionBase session, HAPI_NodeId nodeID, List<HAPI_PartInfo> volumeParts,
List<HAPI_PartInfo> scatterInstancerParts, out List<HEU_LoadBufferVolume> volumeBuffers)
{
volumeBuffers = null;
if (volumeParts.Count == 0)
{
return true;
}
volumeBuffers = new List<HEU_LoadBufferVolume>();
int detailResolution = 0;
int numParts = volumeParts.Count;
for (int i = 0; i < numParts; ++i)
{
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(nodeID, volumeParts[i].id, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
SetLog(HEU_LoadData.LoadStatus.ERROR, "This heightfield is not supported. Please check documentation.");
return false;
}
if (volumeInfo.xLength != volumeInfo.yLength)
{
SetLog(HEU_LoadData.LoadStatus.ERROR, "Non-square sized terrain not supported.");
return false;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
HFLayerType layerType = HEU_TerrainUtility.GetHeightfieldLayerType(session, nodeID, volumeParts[i].id, volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
// Ignoring mask layer because it is Houdini-specific (same behaviour as regular HDA terrain generation)
if (layerType == HFLayerType.MASK)
{
continue;
}
HEU_LoadBufferVolumeLayer layer = new HEU_LoadBufferVolumeLayer();
layer._layerName = volumeName;
layer._partID = volumeParts[i].id;
layer._heightMapWidth = volumeInfo.xLength;
layer._heightMapHeight = volumeInfo.yLength;
layer._layerType = layerType;
Matrix4x4 volumeTransformMatrix = HEU_HAPIUtility.GetMatrixFromHAPITransform(ref volumeInfo.transform, false);
layer._position = HEU_HAPIUtility.GetPosition(ref volumeTransformMatrix);
Vector3 scale = HEU_HAPIUtility.GetScale(ref volumeTransformMatrix);
// Calculate real terrain size in both Houdini and Unity.
// The height values will be mapped over this terrain size.
float gridSpacingX = scale.x * 2f;
float gridSpacingY = scale.y * 2f;
layer._terrainSizeX = Mathf.Round((volumeInfo.xLength - 1) * gridSpacingX);
layer._terrainSizeY = Mathf.Round((volumeInfo.yLength - 1) * gridSpacingY);
// Get volume bounds for calculating position offset
session.GetVolumeBounds(nodeID, volumeParts[i].id,
out layer._minBounds.x, out layer._minBounds.y, out layer._minBounds.z,
out layer._maxBounds.x, out layer._maxBounds.y, out layer._maxBounds.z,
out layer._center.x, out layer._center.y, out layer._center.z);
// Look up TerrainLayer file via attribute if user has set it
layer._layerPath = HEU_GeneralUtility.GetAttributeStringValueSingle(session, nodeID, volumeParts[i].id,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TERRAINLAYER_FILE_ATTR, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM);
if (layerType != HFLayerType.DETAIL)
{
layer._hasLayerAttributes = HEU_TerrainUtility.VolumeLayerHasAttributes(session, nodeID, volumeParts[i].id);
if (layer._hasLayerAttributes)
{
LoadStringFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_DIFFUSE_ATTR, ref layer._diffuseTexturePath);
LoadStringFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_MASK_ATTR, ref layer._maskTexturePath);
LoadStringFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_NORMAL_ATTR, ref layer._normalTexturePath);
LoadFloatFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_NORMAL_SCALE_ATTR, ref layer._normalScale);
LoadFloatFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_METALLIC_ATTR, ref layer._metallic);
LoadFloatFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SMOOTHNESS_ATTR, ref layer._smoothness);
LoadLayerColorFromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SPECULAR_ATTR, ref layer._specularColor);
LoadLayerVector2FromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_OFFSET_ATTR, ref layer._tileOffset);
LoadLayerVector2FromAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_SIZE_ATTR, ref layer._tileSize);
}
// Get the height values from Houdini along with the min and max height range.
layer._normalizedHeights = HEU_TerrainUtility.GetNormalizedHeightmapFromPartWithMinMax(
_session, nodeID, volumeParts[i].id, volumeInfo.xLength, volumeInfo.yLength,
ref layer._minHeight, ref layer._maxHeight, ref layer._heightRange,
(layerType == HFLayerType.HEIGHT));
}
// Get the tile index, if it exists, for this part
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
HEU_GeneralUtility.GetAttribute(session, nodeID, volumeParts[i].id, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
int tileIndex = 0;
if (tileAttrInfo.exists && tileAttrData.Length == 1)
{
tileIndex = tileAttrData[0];
}
// Add layer based on tile index
if (tileIndex >= 0)
{
HEU_LoadBufferVolume volumeBuffer = null;
for(int j = 0; j < volumeBuffers.Count; ++j)
{
if (volumeBuffers[j]._tileIndex == tileIndex)
{
volumeBuffer = volumeBuffers[j];
break;
}
}
if (volumeBuffer == null)
{
volumeBuffer = new HEU_LoadBufferVolume();
volumeBuffer.InitializeBuffer(volumeParts[i].id, volumeName, false, false);
volumeBuffer._tileIndex = tileIndex;
volumeBuffers.Add(volumeBuffer);
}
if (layerType == HFLayerType.HEIGHT)
{
// Height layer always first layer
volumeBuffer._splatLayers.Insert(0, layer);
volumeBuffer._heightMapWidth = layer._heightMapWidth;
volumeBuffer._heightMapHeight = layer._heightMapHeight;
volumeBuffer._terrainSizeX = layer._terrainSizeX;
volumeBuffer._terrainSizeY = layer._terrainSizeY;
volumeBuffer._heightRange = layer._heightRange;
// The terrain heightfield position in y requires offset of min height
layer._position.y += layer._minHeight;
// Use y position from attribute if user has set it
float userYPos;
if (HEU_GeneralUtility.GetAttributeFloatSingle(session, nodeID, volumeParts[i].id,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_YPOS, out userYPos))
{
layer._position.y = userYPos;
}
// Look up TerrainData file path via attribute if user has set it
volumeBuffer._terrainDataPath = HEU_GeneralUtility.GetAttributeStringValueSingle(session, nodeID, volumeBuffer._id,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TERRAINDATA_FILE_ATTR, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM);
// Load the TreePrototype buffers
List<HEU_TreePrototypeInfo> treePrototypeInfos = HEU_TerrainUtility.GetTreePrototypeInfosFromPart(session, nodeID, volumeBuffer._id);
if (treePrototypeInfos != null)
{
if (volumeBuffer._scatterTrees == null)
{
volumeBuffer._scatterTrees = new HEU_VolumeScatterTrees();
}
volumeBuffer._scatterTrees._treePrototypInfos = treePrototypeInfos;
}
HEU_TerrainUtility.PopulateDetailProperties(session, nodeID,
volumeBuffer._id, ref volumeBuffer._detailProperties);
// Get specified material if any
volumeBuffer._specifiedTerrainMaterialName = HEU_GeneralUtility.GetMaterialAttributeValueFromPart(session,
nodeID, volumeBuffer._id);
}
else if(layer._layerType == HFLayerType.DETAIL)
{
// Get detail prototype
HEU_DetailPrototype detailPrototype = null;
HEU_TerrainUtility.PopulateDetailPrototype(session, nodeID, volumeParts[i].id, ref detailPrototype);
int[,] detailMap = HEU_TerrainUtility.GetDetailMapFromPart(session, nodeID,
volumeParts[i].id, out detailResolution);
volumeBuffer._detailPrototypes.Add(detailPrototype);
volumeBuffer._detailMaps.Add(detailMap);
// Set the detail resolution which is formed from the detail layer
if (volumeBuffer._detailProperties == null)
{
volumeBuffer._detailProperties = new HEU_DetailProperties();
}
volumeBuffer._detailProperties._detailResolution = detailResolution;
}
else
{
volumeBuffer._splatLayers.Add(layer);
}
}
Sleep();
}
// Each volume buffer is a self contained terrain tile
foreach(HEU_LoadBufferVolume volumeBuffer in volumeBuffers)
{
List<HEU_LoadBufferVolumeLayer> layers = volumeBuffer._splatLayers;
//Debug.LogFormat("Heightfield: tile={0}, layers={1}", tile._tileIndex, layers.Count);
int heightMapWidth = volumeBuffer._heightMapWidth;
int heightMapHeight = volumeBuffer._heightMapHeight;
int numLayers = layers.Count;
if (numLayers > 0)
{
// Convert heightmap values from Houdini to Unity
volumeBuffer._heightMap = HEU_TerrainUtility.ConvertHeightMapHoudiniToUnity(heightMapWidth, heightMapHeight, layers[0]._normalizedHeights);
Sleep();
// Convert splatmap values from Houdini to Unity.
// Start at 2nd index since height is strictly for height values (not splatmap).
List<float[]> heightFields = new List<float[]>();
for(int m = 1; m < numLayers; ++m)
{
// Ignore Detail layers as they are handled differently
if(layers[m]._layerType != HFLayerType.DETAIL)
{
heightFields.Add(layers[m]._normalizedHeights);
}
}
// The number of maps are the number of splatmaps (ie. non height/mask layers)
int numMaps = heightFields.Count;
if (numMaps > 0)
{
// Using the first splatmap size for all splatmaps
volumeBuffer._splatMaps = HEU_TerrainUtility.ConvertHeightFieldToAlphaMap(layers[1]._heightMapWidth, layers[1]._heightMapHeight, heightFields);
}
else
{
volumeBuffer._splatMaps = null;
}
// TODO: revisit how the position is calculated
volumeBuffer._position = new Vector3(
volumeBuffer._terrainSizeX + volumeBuffer._splatLayers[0]._minBounds.x,
volumeBuffer._splatLayers[0]._position.y,
volumeBuffer._splatLayers[0]._minBounds.z);
}
}
// Process the scatter instancer parts to get the scatter data
for (int i = 0; i < scatterInstancerParts.Count; ++i)
{
// Find the terrain tile (use primitive attr). Assume 0 tile if not set (i.e. not split into tiles)
int terrainTile = 0;
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
if (HEU_GeneralUtility.GetAttribute(session, nodeID, scatterInstancerParts[i].id, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData))
{
if (tileAttrData != null && tileAttrData.Length > 0)
{
terrainTile = tileAttrData[0];
}
}
// Find the volume layer associated with this part using the terrain tile index
HEU_LoadBufferVolume volumeBuffer = GetLoadBufferVolumeFromTileIndex(terrainTile, volumeBuffers);
if (volumeBuffer == null)
{
continue;
}
HEU_TerrainUtility.PopulateScatterTrees(session, nodeID, scatterInstancerParts[i].id, scatterInstancerParts[i].pointCount, ref volumeBuffer._scatterTrees);
}
return true;
}
/// <summary>
/// Find all TOP networks from linked HDA, as well as the TOP nodes within, and populate internal state.
/// </summary>
/// <returns>True if successfully populated data</returns>
public bool PopulateTOPNetworks()
{
HEU_SessionBase session = GetHAPISession();
HAPI_NodeInfo assetInfo = new HAPI_NodeInfo();
if (!session.GetNodeInfo(_assetID, ref assetInfo, true))
{
return false;
}
// Get all networks within the asset, recursively.
// The reason to get all networks is because there can be TOP network SOP which isn't a TOP network type, but rather a SOP type
int nodeCount = 0;
if (!session.ComposeChildNodeList(_assetID, (int)(HAPI_NodeType.HAPI_NODETYPE_ANY), (int)HAPI_NodeFlags.HAPI_NODEFLAGS_NETWORK, true, ref nodeCount))
{
return false;
}
HAPI_NodeId[] nodeIDs = new HAPI_NodeId[nodeCount];
if (!session.GetComposedChildNodeList(_assetID, nodeIDs, nodeCount))
{
return false;
}
// Holds TOP networks in use
List<HEU_TOPNetworkData> newNetworks = new List<HEU_TOPNetworkData>();
// For each network, only add those with TOP child nodes (therefore guaranteeing only TOP networks are added).
for (int t = 0; t < nodeCount; ++t)
{
HAPI_NodeInfo topNodeInfo = new HAPI_NodeInfo();
if (!session.GetNodeInfo(nodeIDs[t], ref topNodeInfo))
{
return false;
}
string nodeName = HEU_SessionManager.GetString(topNodeInfo.nameSH, session);
//Debug.LogFormat("Top node: {0} - {1}", nodeName, topNodeInfo.type);
// Skip any non TOP or SOP networks
if (topNodeInfo.type != HAPI_NodeType.HAPI_NODETYPE_TOP && topNodeInfo.type != HAPI_NodeType.HAPI_NODETYPE_SOP)
{
continue;
}
// Get list of all TOP nodes within this network.
HAPI_NodeId[] topNodeIDs = null;
if (!HEU_SessionManager.GetComposedChildNodeList(session, nodeIDs[t], (int)(HAPI_NodeType.HAPI_NODETYPE_TOP), (int)HAPI_NodeFlags.HAPI_NODEFLAGS_TOP_NONSCHEDULER, true, out topNodeIDs))
{
continue;
}
// Skip networks without TOP nodes
if (topNodeIDs == null || topNodeIDs.Length == 0)
{
continue;
}
// Get any filter tags from spare parms on TOP nodes
TOPNodeTags tags = new TOPNodeTags();
if (_useHEngineData)
{
ParseHEngineData(session, nodeIDs[t], ref topNodeInfo, ref tags);
if (!tags._show)
{
continue;
}
}
else
{
tags._show = true;
}
HEU_TOPNetworkData topNetworkData = GetTOPNetworkByName(nodeName, _topNetworks);
if (topNetworkData == null)
{
topNetworkData = new HEU_TOPNetworkData();
}
else
{
// Found previous TOP network, so remove it from old list. This makes
// sure to not remove it when cleaning up old nodes.
_topNetworks.Remove(topNetworkData);
}
newNetworks.Add(topNetworkData);
topNetworkData._nodeID = nodeIDs[t];
topNetworkData._nodeName = nodeName;
topNetworkData._parentName = _assetName;
topNetworkData._tags = tags;
PopulateTOPNodes(session, topNetworkData, topNodeIDs, _useHEngineData);
}
// Clear old TOP networks and nodes
ClearAllTOPData();
_topNetworks = newNetworks;
// Update latest TOP network names
_topNetworkNames = new string[_topNetworks.Count];
for(int i = 0; i < _topNetworks.Count; ++i)
{
_topNetworkNames[i] = _topNetworks[i]._nodeName;
}
return true;
}
public bool GenerateMeshBuffers(HEU_SessionBase session, HAPI_NodeId nodeID, List<HAPI_PartInfo> meshParts,
bool bSplitPoints, bool bUseLODGroups, bool bGenerateUVs, bool bGenerateTangents, bool bGenerateNormals,
out List<HEU_LoadBufferMesh> meshBuffers)
{
meshBuffers = null;
if (meshParts.Count == 0)
{
return true;
}
bool bSuccess = true;
string assetCacheFolderPath = "";
meshBuffers = new List<HEU_LoadBufferMesh>();
foreach(HAPI_PartInfo partInfo in meshParts)
{
HAPI_NodeId geoID = nodeID;
int partID = partInfo.id;
string partName = HEU_SessionManager.GetString(partInfo.nameSH, session);
bool bPartInstanced = partInfo.isInstanced;
if (partInfo.type == HAPI_PartType.HAPI_PARTTYPE_MESH)
{
List<HEU_MaterialData> materialCache = new List<HEU_MaterialData>();
HEU_GenerateGeoCache geoCache = HEU_GenerateGeoCache.GetPopulatedGeoCache(session, -1, geoID, partID, bUseLODGroups,
materialCache, assetCacheFolderPath);
if (geoCache == null)
{
// Failed to get necessary info for generating geometry.
SetLog(HEU_LoadData.LoadStatus.ERROR, string.Format("Failed to generate geometry cache for part: {0}", partName));
continue;
}
geoCache._materialCache = materialCache;
// Build the GeoGroup using points or vertices
bool bResult = false;
List<HEU_GeoGroup> LODGroupMeshes = null;
int defaultMaterialKey = 0;
if (bSplitPoints)
{
bResult = HEU_GenerateGeoCache.GenerateGeoGroupUsingGeoCachePoints(session, geoCache, bGenerateUVs, bGenerateTangents, bGenerateNormals, bUseLODGroups, bPartInstanced,
out LODGroupMeshes, out defaultMaterialKey);
}
else
{
bResult = HEU_GenerateGeoCache.GenerateGeoGroupUsingGeoCacheVertices(session, geoCache, bGenerateUVs, bGenerateTangents, bGenerateNormals, bUseLODGroups, bPartInstanced,
out LODGroupMeshes, out defaultMaterialKey);
}
if (bResult)
{
HEU_LoadBufferMesh meshBuffer = new HEU_LoadBufferMesh();
meshBuffer.InitializeBuffer(partID, partName, partInfo.isInstanced, false);
meshBuffer._geoCache = geoCache;
meshBuffer._LODGroupMeshes = LODGroupMeshes;
meshBuffer._defaultMaterialKey = defaultMaterialKey;
meshBuffer._bGenerateUVs = bGenerateUVs;
meshBuffer._bGenerateTangents = bGenerateTangents;
meshBuffer._bGenerateNormals = bGenerateNormals;
meshBuffer._bPartInstanced = partInfo.isInstanced;
meshBuffers.Add(meshBuffer);
}
else
{
SetLog(HEU_LoadData.LoadStatus.ERROR, string.Format("Failed to generated geometry for part: {0}", partName));
}
}
}
return bSuccess;
}
/// <summary>
/// Given TOP nodes from a TOP network, populate internal state from each TOP node.
/// </summary>
/// <param name="session">Houdini Engine session</param>
/// <param name="topNetwork">TOP network to query TOP nodes from</param>
/// <param name="topNodeIDs">List of TOP nodes in the TOP network</param>
/// <param name="useHEngineData">Whether or not to use HEngine data for filtering</param>
/// <returns>True if successfully populated data</returns>
public static bool PopulateTOPNodes(HEU_SessionBase session, HEU_TOPNetworkData topNetwork, HAPI_NodeId[] topNodeIDs, bool useHEngineData)
{
// Holds list of found TOP nodes
List<HEU_TOPNodeData> newNodes = new List<HEU_TOPNodeData>();
foreach(HAPI_NodeId topNodeID in topNodeIDs)
{
// Not necessary. Blocks main thread.
//session.CookNode(childNodeID, HEU_PluginSettings.CookTemplatedGeos);
HAPI_NodeInfo childNodeInfo = new HAPI_NodeInfo();
if (!session.GetNodeInfo(topNodeID, ref childNodeInfo))
{
return false;
}
string nodeName = HEU_SessionManager.GetString(childNodeInfo.nameSH, session);
//Debug.LogFormat("TOP Node: name={0}, type={1}", nodeName, childNodeInfo.type);
TOPNodeTags tags = new TOPNodeTags();
if (useHEngineData)
{
ParseHEngineData(session, topNodeID, ref childNodeInfo, ref tags);
if (!tags._show)
{
continue;
}
}
else
{
tags._show = true;
}
HEU_TOPNodeData topNodeData = GetTOPNodeByName(nodeName, topNetwork._topNodes);
if (topNodeData == null)
{
topNodeData = new HEU_TOPNodeData();
}
else
{
topNetwork._topNodes.Remove(topNodeData);
}
newNodes.Add(topNodeData);
//topNodeData.Reset();
topNodeData._nodeID = topNodeID;
topNodeData._nodeName = nodeName;
topNodeData._parentName = topNetwork._parentName + "_" + topNetwork._nodeName;
topNodeData._tags = tags;
}
// Clear old unused TOP nodes
for (int i = 0; i < topNetwork._topNodes.Count; ++i)
{
ClearTOPNodeWorkItemResults(topNetwork._topNodes[i]);
}
topNetwork._topNodes = newNodes;
// Get list of updated TOP node names
topNetwork._topNodeNames = new string[topNetwork._topNodes.Count];
for (int i = 0; i < topNetwork._topNodes.Count; ++i)
{
topNetwork._topNodeNames[i] = topNetwork._topNodes[i]._nodeName;
}
return true;
}
public void SyncAllAttributesFrom(HEU_SessionBase session, HEU_HoudiniAsset asset, HAPI_NodeId geoID, ref HAPI_PartInfo partInfo, GameObject outputGameObject)
{
_geoID = geoID;
_partID = partInfo.id;
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if(session.GetGeoInfo(_geoID, ref geoInfo))
{
_geoName = HEU_SessionManager.GetString(geoInfo.nameSH, session);
}
_outputTransform = outputGameObject.transform;
// Need the vertex list of indices to map the positions to vertex colors
_vertexIndices = new int[partInfo.vertexCount];
if (!HEU_GeneralUtility.GetArray2Arg(geoID, partInfo.id, session.GetVertexList, _vertexIndices, 0, partInfo.vertexCount))
{
return;
}
// Note that this currently only supports point attributes
int attributePointCount = partInfo.attributeCounts[(int)HAPI_AttributeOwner.HAPI_ATTROWNER_POINT];
string[] pointAttributeNames = new string[attributePointCount];
if(!session.GetAttributeNames(geoID, partInfo.id, HAPI_AttributeOwner.HAPI_ATTROWNER_POINT, ref pointAttributeNames, attributePointCount))
{
Debug.LogErrorFormat("Failed to sync attributes. Unable to retrieve attribute names.");
return;
}
// Create new list of attributes. We'll move existing attributes that are still in use as we find them.
List<HEU_AttributeData> newAttributeDatas = new List<HEU_AttributeData>();
foreach (string pointAttributeName in pointAttributeNames)
{
if(string.IsNullOrEmpty(pointAttributeName))
{
continue;
}
// Get position attribute values separately. Used for painting and editing points in 3D scene.
HAPI_AttributeInfo pointAttributeInfo = new HAPI_AttributeInfo();
if(session.GetAttributeInfo(geoID, partInfo.id, pointAttributeName, HAPI_AttributeOwner.HAPI_ATTROWNER_POINT, ref pointAttributeInfo))
{
if (pointAttributeName.Equals(HEU_Defines.HAPI_ATTRIB_POSITION))
{
if (pointAttributeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
Debug.LogErrorFormat("Expected float type for position attribute, but got {0}", pointAttributeInfo.storage);
return;
}
_positionAttributeValues = new Vector3[pointAttributeInfo.count];
float[] data = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partInfo.id, pointAttributeName, ref pointAttributeInfo, ref data, session.GetAttributeFloatData);
for (int i = 0; i < pointAttributeInfo.count; ++i)
{
_positionAttributeValues[i] = new Vector3(-data[i * pointAttributeInfo.tupleSize + 0], data[i * pointAttributeInfo.tupleSize + 1], data[i * pointAttributeInfo.tupleSize + 2]);
}
// We don't let position attributes be editted (for now anyway)
continue;
}
HEU_AttributeData attrData = GetAttributeData(pointAttributeName);
if (attrData == null)
{
// Attribute data not found. Create it.
attrData = CreateAttribute(pointAttributeName, ref pointAttributeInfo);
//Debug.LogFormat("Created attribute data: {0}", pointAttributeName);
}
// Add to new list.
newAttributeDatas.Add(attrData);
// Sync the attribute info to data.
PopulateAttributeData(session, geoID, partInfo.id, attrData, ref pointAttributeInfo);
if(pointAttributeName.Equals(HEU_Defines.HAPI_ATTRIB_COLOR) || pointAttributeInfo.typeInfo == HAPI_AttributeTypeInfo.HAPI_ATTRIBUTE_TYPE_COLOR)
{
_hasColorAttribute = true;
}
}
else
{
// Failed to get point attribute info!
}
}
// Overwriting the old list with the new should automatically remove unused attribute datas.
_attributeDatas = newAttributeDatas;
}
/// <summary>
/// Load the geometry generated as results of the given work item, of the given TOP node.
/// The load will be done asynchronously.
/// Results must be tagged with 'file', and must have a file path, otherwise will not be loaded.
/// </summary>
/// <param name="session">Houdini Engine session that the TOP node is in</param>
/// <param name="topNode">TOP node that the work item belongs to</param>
/// <param name="workItemInfo">Work item whose results to load</param>
/// <param name="resultInfos">Results data</param>
/// <param name="workItemID">The work item's ID. Required for clearning its results.</param>
public void LoadResults(HEU_SessionBase session, HEU_TOPNodeData topNode, HAPI_PDG_WorkitemInfo workItemInfo, HAPI_PDG_WorkitemResultInfo[] resultInfos, HAPI_PDG_WorkitemId workItemID)
{
// Create HEU_GeoSync objects, set results, and sync it
string workItemName = HEU_SessionManager.GetString(workItemInfo.nameSH, session);
//Debug.LogFormat("Work item: {0}:: name={1}, results={2}", workItemInfo.index, workItemName, workItemInfo.numResults);
// Clear previously generated result
ClearWorkItemResultByIndex(topNode, workItemInfo.index);
if (resultInfos == null || resultInfos.Length == 0)
{
return;
}
HEU_TOPWorkResult result = GetWorkResultByIndex(topNode, workItemInfo.index);
if (result == null)
{
result = new HEU_TOPWorkResult();
result._workItemIndex = workItemInfo.index;
result._workItemID = workItemID;
topNode._workResults.Add(result);
}
// Load each result geometry
int numResults = resultInfos.Length;
for (int i = 0; i < numResults; ++i)
{
if (resultInfos[i].resultTagSH <= 0 || resultInfos[i].resultSH <= 0)
{
continue;
}
string tag = HEU_SessionManager.GetString(resultInfos[i].resultTagSH, session);
string path = HEU_SessionManager.GetString(resultInfos[i].resultSH, session);
//Debug.LogFormat("Result for work item {0}: result={1}, tag={2}, path={3}", result._workItemIndex, i, tag, path);
if (string.IsNullOrEmpty(tag) || !tag.StartsWith("file"))
{
continue;
}
string name = string.Format("{0}_{1}_{2}",
topNode._parentName,
workItemName,
workItemInfo.index);
// Get or create parent GO
if (topNode._workResultParentGO == null)
{
topNode._workResultParentGO = new GameObject(topNode._nodeName);
HEU_GeneralUtility.SetParentWithCleanTransform(GetLoadRootTransform(), topNode._workResultParentGO.transform);
topNode._workResultParentGO.SetActive(topNode._showResults);
}
GameObject newGO = new GameObject(name);
HEU_GeneralUtility.SetParentWithCleanTransform(topNode._workResultParentGO.transform, newGO.transform);
result._generatedGOs.Add(newGO);
// HEU_GeoSync does the loading
HEU_GeoSync geoSync = newGO.AddComponent<HEU_GeoSync>();
if (geoSync != null)
{
geoSync._filePath = path;
geoSync.StartSync();
}
}
}
/// <summary>
/// This reverts local modifcations, refresh upstream inputs, and cooks the editable node.
/// This ensures that the node will use the latest upstream input data before applying its own changes.
/// </summary>
/// <param name="session"></param>
public void RefreshUpstreamInputs(HEU_SessionBase session)
{
session.RevertGeo(_geoID);
HEU_HAPIUtility.CookNodeInHoudini(session, _geoID, false, "");
}
/// <summary>
/// Retrieves object info from Houdini session and updates internal state.
/// New geo nodes are created, unused geo nodes are destroyed.
/// Geo nodes are then refreshed to be in sync with Houdini session.
/// </summary>
/// <returns>True if internal state has changed (including geometry).</returns>
public void UpdateObject(HEU_SessionBase session, bool bForceUpdate)
{
// Update the geo info
if (!session.GetObjectInfo(ObjectID, ref _objectInfo))
{
return;
}
SyncWithObjectInfo(session);
// Update the object transform
_objectTransform = ParentAsset.GetObjectTransform(session, ObjectID);
bool bApplyHAPITransform = false;
// Container for existing geo nodes that are still in use
List<HEU_GeoNode> geoNodesToKeep = new List<HEU_GeoNode>();
// Container for new geo infos that need to be created
List<HAPI_GeoInfo> newGeoInfosToCreate = new List<HAPI_GeoInfo>();
if (_objectInfo.haveGeosChanged || bForceUpdate)
{
// Indicates that the geometry nodes have changed
//Debug.Log("Geos have changed!");
// Form a list of geo infos that are now present after cooking
List<HAPI_GeoInfo> postCookGeoInfos = new List<HAPI_GeoInfo>();
// Get the display geo info
HAPI_GeoInfo displayGeoInfo = new HAPI_GeoInfo();
if (!session.GetDisplayGeoInfo(_objectInfo.nodeId, ref displayGeoInfo))
{
return;
}
postCookGeoInfos.Add(displayGeoInfo);
// Get editable nodes, cook em, then create geo nodes for them
HAPI_NodeId[] editableNodes = null;
HEU_SessionManager.GetComposedChildNodeList(session, _objectInfo.nodeId, (int)HAPI_NodeType.HAPI_NODETYPE_SOP, (int)HAPI_NodeFlags.HAPI_NODEFLAGS_EDITABLE, true, out editableNodes);
if (editableNodes != null)
{
foreach (HAPI_NodeId editNodeID in editableNodes)
{
if (editNodeID != displayGeoInfo.nodeId)
{
session.CookNode(editNodeID, HEU_PluginSettings.CookTemplatedGeos);
HAPI_GeoInfo editGeoInfo = new HAPI_GeoInfo();
if (session.GetGeoInfo(editNodeID, ref editGeoInfo))
{
postCookGeoInfos.Add(editGeoInfo);
}
}
}
}
// Now for each geo node that are present after cooking, we check if its
// new or whether we already have it prior to cooking.
int numPostCookGeoInfos = postCookGeoInfos.Count;
for (int i = 0; i < numPostCookGeoInfos; i++)
{
bool bFound = false;
for (int j = 0; j < _geoNodes.Count; j++)
{
string geoName = HEU_SessionManager.GetString(postCookGeoInfos[i].nameSH, session);
if(geoName.Equals(_geoNodes[j].GeoName))
{
_geoNodes[j].SetGeoInfo(postCookGeoInfos[i]);
geoNodesToKeep.Add(_geoNodes[j]);
_geoNodes.RemoveAt(j);
bFound = true;
break;
}
}
if (!bFound)
{
newGeoInfosToCreate.Add(postCookGeoInfos[i]);
}
}
// Whatever is left in _geoNodes is no longer needed so clean up
int numCurrentGeos = _geoNodes.Count;
for(int i = 0; i < numCurrentGeos; ++i)
{
_geoNodes[i].DestroyAllData();
}
bApplyHAPITransform = true;
}
else
{
Debug.Assert(_objectInfo.geoCount == _geoNodes.Count, "Expected same number of geometry nodes.");
}
// Go through the old geo nodes that are still in use and update if necessary.
foreach (HEU_GeoNode geoNode in geoNodesToKeep)
{
// Get geo info and check if geo changed
bool bGeoChanged = bForceUpdate || geoNode.HasGeoNodeChanged(session);
if(bGeoChanged)
{
geoNode.UpdateGeo(session);
}
else
{
if (_objectInfo.haveGeosChanged)
{
// Clear object instances since the object info has changed.
// Without this, the object instances were never getting updated
// if only the inputs changed but not outputs (of instancers).
geoNode.ClearObjectInstances();
}
// Visiblity might have changed, so update that
geoNode.CalculateVisiblity(IsVisible());
}
}
// Create the new geo infos and add to our keep list
foreach (HAPI_GeoInfo newGeoInfo in newGeoInfosToCreate)
{
geoNodesToKeep.Add(CreateGeoNode(session, newGeoInfo));
}
// Overwrite the old list with new
_geoNodes = geoNodesToKeep;
// Update transform to all geo nodes whether they were created newly, or
// this object's transform has changed
if (bApplyHAPITransform || bForceUpdate || _objectInfo.hasTransformChanged)
{
// This has been moved to GenerateGeometry but kept here just in case.
//ApplyObjectTransformToGeoNodes();
}
}
// LOGIC -----------------------------------------------------------------------------------------------------
public bool SetupHandle(HEU_SessionBase session, HAPI_NodeId assetID, int handleIndex, string handleName,
HEU_HandleType handleType, ref HAPI_HandleInfo handleInfo, HEU_Parameters parameters)
{
_handleIndex = handleIndex;
_handleName = handleName;
_handleType = handleType;
HAPI_HandleBindingInfo[] handleBindingInfos = new HAPI_HandleBindingInfo[handleInfo.bindingsCount];
if (!session.GetHandleBindingInfo(assetID, _handleIndex, handleBindingInfos, 0, handleInfo.bindingsCount))
{
return false;
}
HAPI_ParmId translateParmID = -1;
HAPI_ParmId rotateParmID = -1;
HAPI_ParmId scaleParmID = -1;
HAPI_ParmId rstOrderParmID = -1;
HAPI_ParmId xyzOrderParmID = -1;
_rstOrder = HAPI_RSTOrder.HAPI_SRT;
_xyzOrder = HAPI_XYZOrder.HAPI_XYZ;
_handleParamTranslateBinding = null;
_handleParamRotateBinding = null;
_handleParamScaleBinding = null;
for (int i = 0; i < handleBindingInfos.Length; ++i)
{
string parmName = HEU_SessionManager.GetString(handleBindingInfos[i].handleParmNameSH, session);
//string assetParmName = HEU_SessionManager.GetString(handleBindingInfos[i].assetParmNameSH, session);
//Debug.LogFormat("Handle {0} has parm {1} with asset parm {2} with asset parm id {3}", handleName, parmName, assetParmName, handleBindingInfos[i].assetParmId);
if (parmName.Equals("tx") || parmName.Equals("ty") || parmName.Equals("tz"))
{
translateParmID = handleBindingInfos[i].assetParmId;
if(_handleParamTranslateBinding == null)
{
HEU_ParameterData parmData = parameters.GetParameterWithParmID(translateParmID);
if (parmData != null && !parmData._parmInfo.invisible)
{
_handleParamTranslateBinding = new HEU_HandleParamBinding();
_handleParamTranslateBinding._paramType = HEU_HandleParamBinding.HEU_HandleParamType.TRANSLATE;
_handleParamTranslateBinding._parmID = parmData.ParmID;
_handleParamTranslateBinding._paramName = parmData._name;
_handleParamTranslateBinding._bDisabled = parmData._parmInfo.disabled;
}
}
if(_handleParamTranslateBinding != null)
{
if(parmName.Equals("tx"))
{
_handleParamTranslateBinding._boundChannels[0] = true;
}
else if (parmName.Equals("ty"))
{
_handleParamTranslateBinding._boundChannels[1] = true;
}
else if (parmName.Equals("tz"))
{
_handleParamTranslateBinding._boundChannels[2] = true;
}
}
}
if (parmName.Equals("rx") || parmName.Equals("ry") || parmName.Equals("rz"))
{
rotateParmID = handleBindingInfos[i].assetParmId;
if(_handleParamRotateBinding == null)
{
HEU_ParameterData parmData = parameters.GetParameterWithParmID(rotateParmID);
if (parmData != null && !parmData._parmInfo.invisible)
{
_handleParamRotateBinding = new HEU_HandleParamBinding();
_handleParamRotateBinding._paramType = HEU_HandleParamBinding.HEU_HandleParamType.ROTATE;
_handleParamRotateBinding._parmID = parmData.ParmID;
_handleParamRotateBinding._paramName = parmData._name;
_handleParamRotateBinding._bDisabled = parmData._parmInfo.disabled;
}
}
if (_handleParamRotateBinding != null)
{
if (parmName.Equals("rx"))
{
_handleParamRotateBinding._boundChannels[0] = true;
}
else if (parmName.Equals("ry"))
{
_handleParamRotateBinding._boundChannels[1] = true;
}
else if (parmName.Equals("rz"))
{
_handleParamRotateBinding._boundChannels[2] = true;
}
}
}
if (parmName.Equals("sx") || parmName.Equals("sy") || parmName.Equals("sz"))
{
scaleParmID = handleBindingInfos[i].assetParmId;
if (_handleParamScaleBinding == null)
{
HEU_ParameterData parmData = parameters.GetParameterWithParmID(scaleParmID);
if (parmData != null && !parmData._parmInfo.invisible)
{
_handleParamScaleBinding = new HEU_HandleParamBinding();
_handleParamScaleBinding._paramType = HEU_HandleParamBinding.HEU_HandleParamType.SCALE;
_handleParamScaleBinding._parmID = parmData.ParmID;
_handleParamScaleBinding._paramName = parmData._name;
_handleParamScaleBinding._bDisabled = parmData._parmInfo.disabled;
}
}
if (_handleParamScaleBinding != null)
{
if (parmName.Equals("sx"))
{
_handleParamScaleBinding._boundChannels[0] = true;
}
else if (parmName.Equals("sy"))
{
_handleParamScaleBinding._boundChannels[1] = true;
}
else if (parmName.Equals("sz"))
{
_handleParamScaleBinding._boundChannels[2] = true;
}
}
}
if(parmName.Equals("trs_order"))
{
rstOrderParmID = handleBindingInfos[i].assetParmId;
}
if (parmName.Equals("xyz_order"))
{
xyzOrderParmID = handleBindingInfos[i].assetParmId;
}
}
if (rstOrderParmID >= 0)
{
HEU_ParameterData parmData = parameters.GetParameter(rstOrderParmID);
if (parmData != null)
{
_rstOrder = (HAPI_RSTOrder)parmData._intValues[0];
}
}
if (xyzOrderParmID >= 0)
{
HEU_ParameterData parmData = parameters.GetParameter(xyzOrderParmID);
if (parmData != null)
{
_xyzOrder = (HAPI_XYZOrder)parmData._intValues[0];
}
}
GenerateTransform(session, parameters);
return true;
}
public void GenerateGeometry(HEU_SessionBase session)
{
// Volumes could come in as a geonode + part for each heightfield layer.
// Otherwise the other geo types can be done individually.
bool bResult = false;
List<HEU_PartData> meshParts = new List<HEU_PartData>();
List<HEU_PartData> volumeParts = new List<HEU_PartData>();
List<HEU_PartData> partsToDestroy = new List<HEU_PartData>();
HEU_HoudiniAsset parentAsset = ParentAsset;
foreach (HEU_GeoNode geoNode in _geoNodes)
{
geoNode.GetPartsByOutputType(meshParts, volumeParts);
if(volumeParts.Count > 0)
{
// Volumes
// Each layer in the volume is retrieved as a volume part, in the display geo node.
// But we need to handle all layers as 1 terrain output in Unity, with 1 height layer and
// other layers as alphamaps.
geoNode.ProcessVolumeParts(session, volumeParts);
// Clear the volume parts after processing since we are done with this set
volumeParts.Clear();
}
}
// Meshes
foreach (HEU_PartData part in meshParts)
{
// This returns false when there is no valid geometry or is not instancing. Should remove it as otherwise
// stale data sticks around on recook
bResult = part.GenerateMesh(session, parentAsset.GenerateUVs, parentAsset.GenerateTangents, parentAsset.GenerateNormals, parentAsset.UseLODGroups);
if (!bResult)
{
partsToDestroy.Add(part);
}
}
int numPartsToDestroy = partsToDestroy.Count;
for(int i = 0; i < numPartsToDestroy; ++i)
{
HEU_GeoNode parentNode = partsToDestroy[i].ParentGeoNode;
if (parentNode != null)
{
parentNode.RemoveAndDestroyPart(partsToDestroy[i]);
}
else
{
HEU_PartData.DestroyPart(partsToDestroy[i]);
}
}
partsToDestroy.Clear();
ApplyObjectTransformToGeoNodes();
// Set visibility and attribute-based tag, layer, and scripts
bool bIsVisible = IsVisible();
foreach (HEU_GeoNode geoNode in _geoNodes)
{
geoNode.CalculateVisiblity(bIsVisible);
geoNode.SetAttributeModifiersOnPartOutputs(session);
}
// Create editable attributes.
// This should happen after visibility has been calculated above
// since we need to show/hide the intermediate geometry during painting.
foreach (HEU_PartData part in meshParts)
{
if (part.ParentGeoNode.IsIntermediateOrEditable())
{
part.SetupAttributeGeometry(session);
}
}
}
public static void ExecuteToolOperatorSingle(string toolName, string toolPath, GameObject[] inputObjects)
{
// Single operator means single asset input. If multiple inputs are provided, create tool for each input.
bool bShouldUseHDA = ShouldUseHDA(inputObjects);
List<GameObject> outputObjectsToSelect = new List<GameObject>();
int numInputs = inputObjects.Length;
for (int i = 0; i < numInputs; ++i)
{
if (inputObjects[i] == null)
{
continue;
}
if (!bShouldUseHDA && !IsValidInputMesh(inputObjects[i]))
{
HEU_Logger.LogWarningFormat("Specified object {0} does not contain a valid mesh!", inputObjects[i].name);
continue;
}
if (bShouldUseHDA && !IsValidInputHDA(inputObjects[i]))
{
HEU_Logger.LogWarningFormat("Specified object {0} does not contain a valid HDA input!", inputObjects[i].name);
continue;
}
GameObject inputObject = inputObjects[i];
GameObject go = HEU_HAPIUtility.InstantiateHDA(toolPath, Vector3.zero, HEU_SessionManager.GetOrCreateDefaultSession(), false);
if (go != null)
{
HEU_HoudiniAssetRoot assetRoot = go.GetComponent<HEU_HoudiniAssetRoot>();
if (assetRoot != null)
{
HEU_HoudiniAsset asset = assetRoot._houdiniAsset;
HEU_SessionBase session = asset.GetAssetSession(true);
List<HEU_InputNode> inputNodes = asset.GetInputNodes();
if (inputNodes == null || inputNodes.Count == 0)
{
HEU_Logger.LogErrorFormat("Unable to assign input geometry due to no asset inputs on selected tool.");
}
else
{
HEU_InputNode inputNode = inputNodes[0];
inputNode.ResetInputNode(session);
if (!bShouldUseHDA)
{
inputNode.ChangeInputType(session, HEU_InputNode.InputObjectType.UNITY_MESH);
HEU_InputObjectInfo inputInfo = inputNode.AddInputEntryAtEndMesh(inputObject);
if (inputInfo != null)
{
inputInfo._useTransformOffset = false;
inputNode.KeepWorldTransform = true;
inputNode.PackGeometryBeforeMerging = false;
inputNode.RequiresUpload = true;
asset.RequestCook(true, true, true, true);
outputObjectsToSelect.Add(assetRoot.gameObject);
}
else
{
HEU_Logger.LogErrorFormat("Invalid input format: {0}", inputObject.gameObject.name);
}
}
else
{
inputNode.ChangeInputType(session, HEU_InputNode.InputObjectType.HDA);
HEU_InputHDAInfo inputHDAInfo = inputNode.AddInputEntryAtEndHDA(inputObject);
if (inputHDAInfo != null)
{
inputNode.KeepWorldTransform = true;
inputNode.PackGeometryBeforeMerging = false;
inputNode.RequiresUpload = true;
asset.RequestCook(true, true, true, true);
outputObjectsToSelect.Add(assetRoot.gameObject);
}
else
{
HEU_Logger.LogErrorFormat("Invalid input format: {0}", inputObject.gameObject.name);
}
}
}
}
}
else
{
HEU_Logger.LogWarningFormat("Failed to instantiate tool: {0}", toolName);
}
}
if (outputObjectsToSelect.Count > 0)
{
HEU_EditorUtility.SelectObjects(outputObjectsToSelect.ToArray());
}
}
/// <summary>
/// Generates object instances.
/// Skips parts that already have their instances generated.
/// </summary>
/// <param name="session">Active session to use</param>
public void GenerateObjectInstances(HEU_SessionBase session)
{
if (!IsInstancer())
{
Debug.LogErrorFormat("Generate object instances called on a non-instancer object {0} for asset {1}!", ObjectName, ParentAsset.AssetName);
return;
}
//Debug.LogFormat("Generate Object Instances:: id={5}, name={0}, isInstancer={1}, isInstanced={2}, instancePath={3}, instanceId={4}", HEU_SessionManager.GetString(_objectInfo.nameSH, session),
// _objectInfo.isInstancer, _objectInfo.isInstanced, HEU_SessionManager.GetString(_objectInfo.objectInstancePathSH, session), _objectInfo.objectToInstanceId, _objectInfo.nodeId);
// Is this a Houdini attribute instancer?
string instanceAttrName = HEU_PluginSettings.InstanceAttr;
string unityInstanceAttrName = HEU_PluginSettings.UnityInstanceAttr;
string instancePrefixAttrName = HEU_Defines.DEFAULT_INSTANCE_PREFIX_ATTR;
HAPI_AttributeInfo instanceAttrInfo = new HAPI_AttributeInfo();
HAPI_AttributeInfo unityInstanceAttrInfo = new HAPI_AttributeInfo();
HAPI_AttributeInfo instancePrefixAttrInfo = new HAPI_AttributeInfo();
int numGeos = _geoNodes.Count;
for(int i = 0; i < numGeos; ++i)
{
if(_geoNodes[i].Displayable)
{
List<HEU_PartData> parts = _geoNodes[i].GetParts();
int numParts = parts.Count;
for(int j = 0; j < numParts; ++j)
{
if(parts[j].ObjectInstancesBeenGenerated)
{
// This prevents instances being created unnecessarily (e.g. part hasn't changed since last cook)
continue;
}
HEU_GeneralUtility.GetAttributeInfo(session, _geoNodes[i].GeoID, parts[j].PartID, instanceAttrName, ref instanceAttrInfo);
HEU_GeneralUtility.GetAttributeInfo(session, _geoNodes[i].GeoID, parts[j].PartID, unityInstanceAttrName, ref unityInstanceAttrInfo);
string[] instancePrefixes = null;
HEU_GeneralUtility.GetAttributeInfo(session, _geoNodes[i].GeoID, parts[j].PartID, instancePrefixAttrName, ref instancePrefixAttrInfo);
if(instancePrefixAttrInfo.exists)
{
instancePrefixes = HEU_GeneralUtility.GetAttributeStringData(session, _geoNodes[i].GeoID, parts[j].PartID, instancePrefixAttrName, ref instancePrefixAttrInfo);
}
// Must clear out instances, as otherwise we get duplicates
parts[j].ClearInstances();
// Clear out invalid object instance infos that no longer have any valid parts
parts[j].ClearInvalidObjectInstanceInfos();
if (instanceAttrInfo.exists)
{
// Object instancing via Houdini instance attribute
parts[j].GenerateInstancesFromObjectIds(session, instancePrefixes);
}
else if (unityInstanceAttrInfo.exists)
{
// Object instancing via existing Unity object (path from point attribute)
// Attribute owner type determines whether to use single instanced object (detail) or multiple (point)
if (unityInstanceAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
parts[j].GenerateInstancesFromUnityAssetPathAttribute(session, unityInstanceAttrName);
}
else if(unityInstanceAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_DETAIL)
{
bool bInstanced = false;
int[] scriptAttr = new int[unityInstanceAttrInfo.count];
if(session.GetAttributeStringData(_geoNodes[i].GeoID, parts[j].PartID, unityInstanceAttrName, ref unityInstanceAttrInfo, scriptAttr, 0, unityInstanceAttrInfo.count))
{
string assetPath = HEU_SessionManager.GetString(scriptAttr[0]);
if (!string.IsNullOrEmpty(assetPath))
{
parts[j].GenerateInstancesFromUnityAssetPath(session, assetPath, instancePrefixes);
bInstanced = true;
}
}
if (!bInstanced)
{
Debug.LogWarningFormat("Unable to get instanced object path from detail instance attribute!");
}
}
else
{
// Other attribute owned types are unsupported
Debug.LogWarningFormat("Unsupported attribute owner {0} for attribute {1}", unityInstanceAttrInfo.owner, unityInstanceAttrName);
}
}
else
{
// Standard object instancing via single Houdini object
if (_objectInfo.objectToInstanceId == HEU_Defines.HEU_INVALID_NODE_ID)
{
Debug.LogAssertionFormat("Invalid object ID {0} used for object instancing. "
+ "Make sure to turn on Full point instancing and set the correct Instance Object.", _objectInfo.objectToInstanceId);
continue;
}
parts[j].GenerateInstancesFromObjectID(session, _objectInfo.objectToInstanceId, instancePrefixes);
}
}
}
}
}
/// <summary>
/// Retrieves the heightmap from Houdini for the given volume part, converts to Unity coordinates,
/// normalizes to 0 and 1, along with min and max height values, as well as the range.
/// </summary>
/// <param name="session">Current Houdini session</param>
/// <param name="geoID">Geometry object ID</param>
/// <param name="partID">The volume part ID</param>
/// <param name="heightMapSize">Size of each dimension of the heightmap (assumes equal sides).</param>
/// <param name="minHeight">Found minimum height value in the heightmap.</param>
/// <param name="maxHeight">Found maximum height value in the heightmap.</param>
/// <param name="heightRange">Found height range in the heightmap.</param>
/// <returns>The converted heightmap from Houdini.</returns>
public static float[] GetNormalizedHeightmapFromPartWithMinMax(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID,
int heightMapWidth, int heightMapHeight, ref float minHeight, ref float maxHeight, ref float heightRange, bool bUseHeightRangeOverride)
{
minHeight = float.MaxValue;
maxHeight = float.MinValue;
heightRange = 1;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(geoID, partID, ref volumeInfo);
if (!bResult)
{
return null;
}
int volumeXLength = volumeInfo.xLength;
int volumeYLength = volumeInfo.yLength;
// Number of heightfield values
int totalHeightValues = volumeXLength * volumeYLength;
float[] heightValues = new float[totalHeightValues];
if (!GetHeightmapFromPart(session, volumeXLength, volumeYLength, geoID, partID, ref heightValues, ref minHeight, ref maxHeight))
{
return null;
}
heightRange = (maxHeight - minHeight);
// Use the override height range if user has set via attribute
bool bHeightRangeOverriden = false;
if (bUseHeightRangeOverride)
{
float userHeightRange = GetHeightRangeFromHeightfield(session, geoID, partID);
if (userHeightRange > 0)
{
heightRange = userHeightRange;
bHeightRangeOverriden = true;
}
}
if (heightRange == 0f)
{
// Always use a non-zero height range, otherwise user can't paint height on Terrain.
heightRange = 1f;
}
//Debug.LogFormat("{0} : {1}", HEU_SessionManager.GetString(volumeInfo.nameSH, session), heightRange);
const int UNITY_MAX_HEIGHT_RANGE = 65536;
if (Mathf.RoundToInt(heightRange) > UNITY_MAX_HEIGHT_RANGE)
{
Debug.LogWarningFormat("Unity Terrain has maximum height range of {0}. This HDA height range is {1}, so it will be maxed out at {0}.\nPlease resize to within valid range!",
UNITY_MAX_HEIGHT_RANGE, Mathf.RoundToInt(heightRange));
heightRange = UNITY_MAX_HEIGHT_RANGE;
}
// Remap height values to fit terrain size
int paddingWidth = heightMapWidth - volumeXLength;
int paddingLeft = Mathf.CeilToInt(paddingWidth * 0.5f);
int paddingRight = heightMapWidth - paddingLeft;
//Debug.LogFormat("Padding: Width={0}, Left={1}, Right={2}", paddingWidth, paddingLeft, paddingRight);
int paddingHeight = heightMapHeight - volumeYLength;
int paddingTop = Mathf.CeilToInt(paddingHeight * 0.5f);
int paddingBottom = heightMapHeight - paddingTop;
//Debug.LogFormat("Padding: Height={0}, Top={1}, Bottom={2}", paddingHeight, paddingTop, paddingBottom);
// Normalize the height values into the range between 0 and 1, inclusive.
float inverseHeightRange = 1f / heightRange;
float normalizeMinHeight = minHeight;
if (minHeight >= 0f && minHeight <= 1f && maxHeight >= 0f && maxHeight <= 1f)
{
// Its important to leave the values alone if they are already normalized.
// So these values don't actually do anything in the normalization calculation below.
inverseHeightRange = 1f;
normalizeMinHeight = 0f;
}
// Set height values at centre of the terrain, with padding on the sides if we resized
float[] resizedHeightValues = new float[heightMapWidth * heightMapHeight];
for (int y = 0; y < heightMapHeight; ++y)
{
for (int x = 0; x < heightMapWidth; ++x)
{
if (y >= paddingTop && y < (paddingBottom) && x >= paddingLeft && x < (paddingRight))
{
int ay = x - paddingLeft;
int ax = y - paddingTop;
float f = heightValues[ay + ax * volumeXLength];
if (!bHeightRangeOverriden)
{
f -= normalizeMinHeight;
}
f *= inverseHeightRange;
// Flip for right-hand to left-handed coordinate system
int ix = x;
int iy = heightMapHeight - (y + 1);
// Unity expects height array indexing to be [y, x].
resizedHeightValues[iy + ix * heightMapWidth] = f;
}
}
}
return resizedHeightValues;
}
private void SyncWithObjectInfo(HEU_SessionBase session)
{
_objName = HEU_SessionManager.GetString(_objectInfo.nameSH, session);
}
/// <summary>
/// Grab the scatter data for the given part.
/// This finds the properties of TreeInstances via attributes.
/// </summary>
/// <param name="session">Houdini session</param>
/// <param name="geoID">Geometry ID</param>
/// <param name="partID">Part (volume layer) ID</param>
/// <param name="pointCount">Number of expected scatter points</param>
public static void PopulateScatterTrees(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID, int pointCount,
ref HEU_VolumeScatterTrees scatterTrees)
{
// The HEU_VolumeScatterTrees might already have been created when the volumecache was queried.
// The "height" layer might have had prototype data which is set in _scatterTrees.
if (scatterTrees == null)
{
scatterTrees = new HEU_VolumeScatterTrees();
}
// Get prototype indices. These indices refer to _scatterTrees._treePrototypes.
HAPI_AttributeInfo indicesAttrInfo = new HAPI_AttributeInfo();
int[] indices = new int[0];
if (HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HEIGHTFIELD_TREEINSTANCE_PROTOTYPEINDEX, ref indicesAttrInfo, ref indices, session.GetAttributeIntData))
{
if (indices != null && indices.Length == pointCount)
{
scatterTrees._prototypeIndices = indices;
}
else
{
Debug.LogWarningFormat("Scatter instance index count for attribute {0} is not valid. Expected {1} but got {2}",
HEU_Defines.HEIGHTFIELD_TREEINSTANCE_PROTOTYPEINDEX, pointCount, (indices != null ? indices.Length : 0));
}
}
// Using the UVs as position of the instances, since they are properly mapped to the terrain tile.
// Also getting other attributes for the TreeInstances, if they are set.
HAPI_AttributeInfo uvAttrInfo = new HAPI_AttributeInfo();
float[] uvs = new float[0];
if (!HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HAPI_ATTRIB_UV, ref uvAttrInfo, ref uvs, session.GetAttributeFloatData))
{
Debug.LogWarning("UVs for scatter instances not found or valid.");
}
if (uvs != null && uvs.Length == (pointCount * uvAttrInfo.tupleSize))
{
// Get height scales
HAPI_AttributeInfo heightAttrInfo = new HAPI_AttributeInfo();
float[] heightscales = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HEIGHTFIELD_TREEINSTANCE_HEIGHTSCALE, ref heightAttrInfo, ref heightscales, session.GetAttributeFloatData);
// Get width scales
HAPI_AttributeInfo widthAttrInfo = new HAPI_AttributeInfo();
float[] widthscales = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HEIGHTFIELD_TREEINSTANCE_WIDTHSCALE, ref widthAttrInfo, ref widthscales, session.GetAttributeFloatData);
// Get orientation
HAPI_AttributeInfo orientAttrInfo = new HAPI_AttributeInfo();
float[] orients = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HAPI_ATTRIB_ORIENT, ref orientAttrInfo, ref orients, session.GetAttributeFloatData);
// Get color
HAPI_AttributeInfo colorAttrInfo = new HAPI_AttributeInfo();
float[] colors = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HAPI_ATTRIB_COLOR, ref colorAttrInfo, ref colors, session.GetAttributeFloatData);
// Get lightmap color
HAPI_AttributeInfo lightmapColorAttrInfo = new HAPI_AttributeInfo();
float[] lightmapColors = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HEIGHTFIELD_TREEINSTANCE_LIGHTMAPCOLOR, ref lightmapColorAttrInfo, ref lightmapColors, session.GetAttributeFloatData);
scatterTrees._positions = new Vector3[pointCount];
if (heightAttrInfo.exists && (heightscales.Length == pointCount))
{
scatterTrees._heightScales = heightscales;
}
if (widthAttrInfo.exists && (widthscales.Length == pointCount))
{
scatterTrees._widthScales = widthscales;
}
if (orientAttrInfo.exists && (orients.Length == orientAttrInfo.tupleSize * pointCount))
{
scatterTrees._rotations = new float[pointCount];
}
if (colorAttrInfo.exists && (colors.Length == colorAttrInfo.tupleSize * pointCount))
{
scatterTrees._colors = new Color32[pointCount];
}
if (lightmapColorAttrInfo.exists && (lightmapColors.Length == lightmapColorAttrInfo.tupleSize * pointCount))
{
scatterTrees._lightmapColors = new Color32[pointCount];
}
for (int i = 0; i < pointCount; ++i)
{
scatterTrees._positions[i] = new Vector3(1.0f - uvs[i * uvAttrInfo.tupleSize + 1],
0,
uvs[i * uvAttrInfo.tupleSize + 0]);
if (scatterTrees._colors != null)
{
scatterTrees._colors[i] =
new Color32((byte)(colors[i * colorAttrInfo.tupleSize + 0] * 255),
(byte)(colors[i * colorAttrInfo.tupleSize + 1] * 255),
(byte)(colors[i * colorAttrInfo.tupleSize + 2] * 255),
(byte)(colors[i * colorAttrInfo.tupleSize + 3] * 255));
}
if (scatterTrees._lightmapColors != null)
{
scatterTrees._lightmapColors[i] =
new Color32((byte)(lightmapColors[i * lightmapColorAttrInfo.tupleSize + 0] * 255),
(byte)(lightmapColors[i * lightmapColorAttrInfo.tupleSize + 1] * 255),
(byte)(lightmapColors[i * lightmapColorAttrInfo.tupleSize + 2] * 255),
(byte)(lightmapColors[i * lightmapColorAttrInfo.tupleSize + 3] * 255));
}
if (scatterTrees._rotations != null)
{
Quaternion quaternion = new Quaternion(
orients[i * orientAttrInfo.tupleSize + 0],
orients[i * orientAttrInfo.tupleSize + 1],
orients[i * orientAttrInfo.tupleSize + 2],
orients[i * orientAttrInfo.tupleSize + 3]);
Vector3 euler = quaternion.eulerAngles;
euler.y = -euler.y;
euler.z = -euler.z;
scatterTrees._rotations[i] = euler.y * Mathf.Deg2Rad;
}
}
}
}
/// <summary>
/// Upload the inputData (mesh geometry) into the input node with inputNodeID.
/// </summary>
/// <param name="session">Session that the input node exists in</param>
/// <param name="inputNodeID">ID of the input node</param>
/// <param name="inputData">Container of the mesh geometry</param>
/// <returns>True if successfully uploaded data</returns>
public bool UploadData(HEU_SessionBase session, HAPI_NodeId inputNodeID, HEU_InputData inputData)
{
HEU_InputDataMeshes inputDataMeshes = inputData as HEU_InputDataMeshes;
if (inputDataMeshes == null)
{
Debug.LogError("Expected HEU_InputDataMeshes type for inputData, but received unsupported type.");
return false;
}
List<Vector3> vertices = new List<Vector3>();
List<Vector3> normals = new List<Vector3>();
List<Color> colors = new List<Color>();
#if UNITY_2018_2_OR_NEWER
const int NumUVSets = 8;
#else
const int NumUVSets = 4;
#endif
List<Vector3>[] uvs = new List<Vector3>[NumUVSets];
for(int u = 0; u < NumUVSets; ++u)
{
uvs[u] = new List<Vector3>();
}
// Use tempUVs to help with reindexing
List<Vector3>[] tempUVs = new List<Vector3>[NumUVSets];
for (int u = 0; u < NumUVSets; ++u)
{
tempUVs[u] = new List<Vector3>();
}
List<int> pointIndexList = new List<int>();
List<int> vertIndexList = new List<int>();
int numMaterials = 0;
int numMeshes = inputDataMeshes._inputMeshes.Count;
// Get the parent's world transform, so when there are multiple child meshes,
// can merge and apply their local transform after subtracting their parent's world transform
Matrix4x4 rootInvertTransformMatrix = Matrix4x4.identity;
if (numMeshes > 1)
{
rootInvertTransformMatrix = inputDataMeshes._inputObject.transform.worldToLocalMatrix;
}
// Always using the first submesh topology. This doesn't support mixed topology (triangles and quads).
MeshTopology meshTopology = inputDataMeshes._inputMeshes[0]._mesh.GetTopology(0);
int numVertsPerFace = 3;
if (meshTopology == MeshTopology.Quads)
{
numVertsPerFace = 4;
}
// For all meshes:
// Accumulate vertices, normals, uvs, colors, and indices.
// Keep track of indices start and count for each mesh for later when uploading material assignments and groups.
// Find shared vertices, and use unique set of vertices to use as point positions.
// Need to reindex indices for both unique vertices, as well as vertex attributes.
for (int i = 0; i < numMeshes; ++i)
{
Vector3[] meshVertices = inputDataMeshes._inputMeshes[i]._mesh.vertices;
Matrix4x4 localToWorld = rootInvertTransformMatrix * inputDataMeshes._inputMeshes[i]._transform.localToWorldMatrix;
List<Vector3> uniqueVertices = new List<Vector3>();
// Keep track of old vertex positions (old vertex slot points to new unique vertex slot)
int[] reindexVertices = new int[meshVertices.Length];
Dictionary<Vector3, int> reindexMap = new Dictionary<Vector3, int>();
// For each vertex, check against subsequent vertices for shared positions.
for (int a = 0; a < meshVertices.Length; ++a)
{
Vector3 va = meshVertices[a];
if (!reindexMap.ContainsKey(va))
{
if (numMeshes > 1 && !inputDataMeshes._hasLOD)
{
// For multiple meshes that are not LODs, apply local transform on vertices to get the merged mesh.
uniqueVertices.Add(localToWorld.MultiplyPoint(va));
}
else
{
uniqueVertices.Add(va);
}
// Reindex to point to unique vertex slot
reindexVertices[a] = uniqueVertices.Count - 1;
reindexMap[va] = uniqueVertices.Count - 1;
}
else
{
reindexVertices[a] = reindexMap[va];
}
}
int vertexOffset = vertices.Count;
vertices.AddRange(uniqueVertices);
Vector3[] meshNormals = inputDataMeshes._inputMeshes[i]._mesh.normals;
Color[] meshColors = inputDataMeshes._inputMeshes[i]._mesh.colors;
// This is really silly. mesh.GetUVs gives uvs regardless if they exist or not (makes duplicates of
// first uv if they don't exist), but mesh.uv* gives correct UVs, but in Vector2 format.
// Since we need to convert to Vector3 later, this checks mesh.uv*, then uses mesh.GetUVs to get in Vector3.
// Note skipping uv1 as its internally used (i.e. the 2nd uv set is uv2)
int uindex = 0;
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv, tempUVs[0], uindex++);
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv2, tempUVs[1], uindex++);
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv3, tempUVs[2], uindex++);
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv4, tempUVs[3], uindex++);
#if UNITY_2018_2_OR_NEWER
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv5, tempUVs[4], uindex++);
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv6, tempUVs[5], uindex++);
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv7, tempUVs[6], uindex++);
GetUVsFromMesh(inputDataMeshes._inputMeshes[i]._mesh, inputDataMeshes._inputMeshes[i]._mesh.uv8, tempUVs[7], uindex++);
#endif
inputDataMeshes._inputMeshes[i]._indexStart = new uint[inputDataMeshes._inputMeshes[i]._numSubMeshes];
inputDataMeshes._inputMeshes[i]._indexCount = new uint[inputDataMeshes._inputMeshes[i]._numSubMeshes];
// For each submesh:
// Generate face to point index -> pointIndexList
// Generate face to vertex attribute index -> vertIndexList
for (int j = 0; j < inputDataMeshes._inputMeshes[i]._numSubMeshes; ++j)
{
int indexStart = pointIndexList.Count;
int vertIndexStart = vertIndexList.Count;
// Indices have to be re-indexed with our own offset
// (using GetIndices to generalize triangles and quad indices)
int[] meshIndices = inputDataMeshes._inputMeshes[i]._mesh.GetIndices(j);
int numIndices = meshIndices.Length;
for (int k = 0; k < numIndices; ++k)
{
int originalIndex = meshIndices[k];
meshIndices[k] = reindexVertices[originalIndex];
pointIndexList.Add(vertexOffset + meshIndices[k]);
vertIndexList.Add(vertIndexStart + k);
if (meshNormals != null && (originalIndex < meshNormals.Length))
{
normals.Add(meshNormals[originalIndex]);
}
for (int u = 0; u < NumUVSets; ++u)
{
if (tempUVs[u].Count > 0)
{
uvs[u].Add(tempUVs[u][originalIndex]);
}
}
if (meshColors != null && (originalIndex < meshColors.Length))
{
colors.Add(meshColors[originalIndex]);
}
}
inputDataMeshes._inputMeshes[i]._indexStart[j] = (uint)indexStart;
inputDataMeshes._inputMeshes[i]._indexCount[j] = (uint)(pointIndexList.Count) - inputDataMeshes._inputMeshes[i]._indexStart[j];
}
numMaterials += inputDataMeshes._inputMeshes[i]._materials != null ? inputDataMeshes._inputMeshes[i]._materials.Length : 0;
}
// It is possible for some meshes to not have normals/uvs/colors while others do.
// In the case where an attribute is missing on some meshes, we clear out those attributes so we don't upload
// partial attribute data.
int totalAllVertexCount = vertIndexList.Count;
if (normals.Count != totalAllVertexCount)
{
normals = null;
}
if (colors.Count != totalAllVertexCount)
{
colors = null;
}
HAPI_PartInfo partInfo = new HAPI_PartInfo();
partInfo.faceCount = vertIndexList.Count / numVertsPerFace;
partInfo.vertexCount = vertIndexList.Count;
partInfo.pointCount = vertices.Count;
partInfo.pointAttributeCount = 1;
partInfo.vertexAttributeCount = 0;
partInfo.primitiveAttributeCount = 0;
partInfo.detailAttributeCount = 0;
//Debug.LogFormat("Faces: {0}; Vertices: {1}; Verts/Face: {2}", partInfo.faceCount, partInfo.vertexCount, numVertsPerFace);
if (normals != null && normals.Count > 0)
{
partInfo.vertexAttributeCount++;
}
for (int u = 0; u < NumUVSets; ++u)
{
if (uvs[u].Count > 0 && uvs[u].Count == totalAllVertexCount)
{
partInfo.vertexAttributeCount++;
}
else
{
uvs[u].Clear();
}
}
if (colors != null && colors.Count > 0)
{
partInfo.vertexAttributeCount++;
}
if (numMaterials > 0)
{
partInfo.primitiveAttributeCount++;
}
if (numMeshes > 0)
{
partInfo.primitiveAttributeCount++;
}
if (inputDataMeshes._hasLOD)
{
partInfo.primitiveAttributeCount++;
partInfo.detailAttributeCount++;
}
HAPI_GeoInfo displayGeoInfo = new HAPI_GeoInfo();
if (!session.GetDisplayGeoInfo(inputNodeID, ref displayGeoInfo))
{
return false;
}
HAPI_NodeId displayNodeID = displayGeoInfo.nodeId;
if (!session.SetPartInfo(displayNodeID, 0, ref partInfo))
{
Debug.LogError("Failed to set input part info. ");
return false;
}
int[] faceCounts = new int[partInfo.faceCount];
for (int i = 0; i < partInfo.faceCount; ++i)
{
faceCounts[i] = numVertsPerFace;
}
int[] faceIndices = pointIndexList.ToArray();
if (!HEU_GeneralUtility.SetArray2Arg(displayNodeID, 0, session.SetFaceCount, faceCounts, 0, partInfo.faceCount))
{
Debug.LogError("Failed to set input geometry face counts.");
return false;
}
if (!HEU_GeneralUtility.SetArray2Arg(displayNodeID, 0, session.SetVertexList, faceIndices, 0, partInfo.vertexCount))
{
Debug.LogError("Failed to set input geometry indices.");
return false;
}
if (!HEU_InputMeshUtility.SetMeshPointAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_POSITION, 3, vertices.ToArray(), ref partInfo, true))
{
Debug.LogError("Failed to set input geometry position.");
return false;
}
int[] vertIndices = vertIndexList.ToArray();
//if(normals != null && !SetMeshPointAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_NORMAL, 3, normals.ToArray(), ref partInfo, true))
if (normals != null && !HEU_InputMeshUtility.SetMeshVertexAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_NORMAL, 3, normals.ToArray(), vertIndices, ref partInfo, true))
{
Debug.LogError("Failed to set input geometry normals.");
return false;
}
for (int u = 0; u < NumUVSets; ++u)
{
if (uvs[u].Count > 0)
{
// Skip uv1 as its used internally. So it goes: uv, uv2, ..., uv8
string uvName = u == 0 ? HEU_Defines.HAPI_ATTRIB_UV : string.Format("{0}{1}", HEU_Defines.HAPI_ATTRIB_UV, u+1);
if (!HEU_InputMeshUtility.SetMeshVertexAttribute(session, displayNodeID, 0, uvName, 3, uvs[u].ToArray(), vertIndices, ref partInfo, false))
{
Debug.LogError("Failed to set input geometry UV" + u);
return false;
}
}
}
if (colors != null && colors.Count > 0)
{
Vector3[] rgb = new Vector3[colors.Count];
float[] alpha = new float[colors.Count];
for (int i = 0; i < colors.Count; ++i)
{
rgb[i][0] = colors[i].r;
rgb[i][1] = colors[i].g;
rgb[i][2] = colors[i].b;
alpha[i] = colors[i].a;
}
//if(!SetMeshPointAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_COLOR, 3, rgb, ref partInfo, false))
if (!HEU_InputMeshUtility.SetMeshVertexAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_COLOR, 3, rgb, vertIndices, ref partInfo, false))
{
Debug.LogError("Failed to set input geometry colors.");
return false;
}
//if(!SetMeshPointAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_ALPHA, 1, alpha, ref partInfo, false))
if (!HEU_InputMeshUtility.SetMeshVertexFloatAttribute(session, displayNodeID, 0, HEU_Defines.HAPI_ATTRIB_ALPHA, 1, alpha, vertIndices, ref partInfo))
{
Debug.LogError("Failed to set input geometry color alpha.");
return false;
}
}
// Set material names for round-trip perservation of material assignment
// Each HEU_UploadMeshData might have a list of submeshes and materials
// These are all combined into a single mesh, with group names
if (numMaterials > 0)
{
bool bFoundAtleastOneValidMaterial = false;
string[] materialIDs = new string[partInfo.faceCount];
for (int g = 0; g < inputDataMeshes._inputMeshes.Count; ++g)
{
if (inputDataMeshes._inputMeshes[g]._numSubMeshes != inputDataMeshes._inputMeshes[g]._materials.Length)
{
// Number of submeshes should equal number of materials since materials determine submeshes
continue;
}
for (int i = 0; i < inputDataMeshes._inputMeshes[g]._materials.Length; ++i)
{
string materialName = HEU_AssetDatabase.GetAssetPathWithSubAssetSupport(inputDataMeshes._inputMeshes[g]._materials[i]);
if (materialName == null)
{
materialName = "";
}
else if (materialName.StartsWith(HEU_Defines.DEFAULT_UNITY_BUILTIN_RESOURCES))
{
materialName = HEU_AssetDatabase.GetUniqueAssetPathForUnityAsset(inputDataMeshes._inputMeshes[g]._materials[i]);
}
bFoundAtleastOneValidMaterial |= !string.IsNullOrEmpty(materialName);
int faceStart = (int)inputDataMeshes._inputMeshes[g]._indexStart[i] / numVertsPerFace;
int faceEnd = faceStart + ((int)inputDataMeshes._inputMeshes[g]._indexCount[i] / numVertsPerFace);
for (int m = faceStart; m < faceEnd; ++m)
{
materialIDs[m] = materialName;
}
}
}
if (bFoundAtleastOneValidMaterial)
{
HAPI_AttributeInfo materialIDAttrInfo = new HAPI_AttributeInfo();
materialIDAttrInfo.exists = true;
materialIDAttrInfo.owner = HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM;
materialIDAttrInfo.storage = HAPI_StorageType.HAPI_STORAGETYPE_STRING;
materialIDAttrInfo.count = partInfo.faceCount;
materialIDAttrInfo.tupleSize = 1;
materialIDAttrInfo.originalOwner = HAPI_AttributeOwner.HAPI_ATTROWNER_INVALID;
if (!session.AddAttribute(displayNodeID, 0, HEU_PluginSettings.UnityMaterialAttribName, ref materialIDAttrInfo))
{
Debug.LogError("Failed to add input geometry unity material name attribute.");
return false;
}
if (!HEU_GeneralUtility.SetAttributeArray(displayNodeID, 0, HEU_PluginSettings.UnityMaterialAttribName, ref materialIDAttrInfo, materialIDs, session.SetAttributeStringData, partInfo.faceCount))
{
Debug.LogError("Failed to set input geometry unity material name.");
return false;
}
}
}
// Set mesh name attribute
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
attrInfo.exists = true;
attrInfo.owner = HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM;
attrInfo.storage = HAPI_StorageType.HAPI_STORAGETYPE_STRING;
attrInfo.count = partInfo.faceCount;
attrInfo.tupleSize = 1;
attrInfo.originalOwner = HAPI_AttributeOwner.HAPI_ATTROWNER_INVALID;
if (session.AddAttribute(displayNodeID, 0, HEU_PluginSettings.UnityInputMeshAttr, ref attrInfo))
{
string[] primitiveNameAttr = new string[partInfo.faceCount];
for (int g = 0; g < inputDataMeshes._inputMeshes.Count; ++g)
{
for (int i = 0; i < inputDataMeshes._inputMeshes[g]._numSubMeshes; ++i)
{
int faceStart = (int)inputDataMeshes._inputMeshes[g]._indexStart[i] / numVertsPerFace;
int faceEnd = faceStart + ((int)inputDataMeshes._inputMeshes[g]._indexCount[i] / numVertsPerFace);
for (int m = faceStart; m < faceEnd; ++m)
{
primitiveNameAttr[m] = inputDataMeshes._inputMeshes[g]._meshPath;
}
}
}
if (!HEU_GeneralUtility.SetAttributeArray(displayNodeID, 0, HEU_PluginSettings.UnityInputMeshAttr, ref attrInfo, primitiveNameAttr, session.SetAttributeStringData, partInfo.faceCount))
{
Debug.LogError("Failed to set input geometry unity mesh name.");
return false;
}
}
else
{
return false;
}
// Set LOD group membership
if (inputDataMeshes._hasLOD)
{
int[] membership = new int[partInfo.faceCount];
for (int g = 0; g < inputDataMeshes._inputMeshes.Count; ++g)
{
if (g > 0)
{
// Clear array
for (int m = 0; m < partInfo.faceCount; ++m)
{
membership[m] = 0;
}
}
// Set 1 for faces belonging to this group
for (int s = 0; s < inputDataMeshes._inputMeshes[g]._numSubMeshes; ++s)
{
int faceStart = (int)inputDataMeshes._inputMeshes[g]._indexStart[s] / numVertsPerFace;
int faceEnd = faceStart + ((int)inputDataMeshes._inputMeshes[g]._indexCount[s] / numVertsPerFace);
for (int m = faceStart; m < faceEnd; ++m)
{
membership[m] = 1;
}
}
if (!session.AddGroup(displayNodeID, 0, HAPI_GroupType.HAPI_GROUPTYPE_PRIM, inputDataMeshes._inputMeshes[g]._meshName))
{
Debug.LogError("Failed to add input geometry LOD group name.");
return false;
}
if (!session.SetGroupMembership(displayNodeID, 0, HAPI_GroupType.HAPI_GROUPTYPE_PRIM, inputDataMeshes._inputMeshes[g]._meshName, membership, 0, partInfo.faceCount))
{
Debug.LogError("Failed to set input geometry LOD group name.");
return false;
}
}
}
return session.CommitGeo(displayNodeID);
}
