private bool LoadLayerFloatFromAttribute(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, string attrName, ref float floatValue)
{
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
float[] attrValues = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attrName, ref attrInfo, ref attrValues, session.GetAttributeFloatData);
if (attrValues != null && attrValues.Length > 0)
{
floatValue = attrValues[0];
return true;
}
return false;
}
private void LoadLayerVector2FromAttribute(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, string attrName, ref Vector2 vectorValue)
{
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
float[] attrValues = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attrName, ref attrInfo, ref attrValues, session.GetAttributeFloatData);
if (attrValues != null && attrValues.Length == 2)
{
if (attrInfo.tupleSize == 2)
{
vectorValue[0] = attrValues[0];
vectorValue[1] = attrValues[1];
}
}
}
/// <summary>
/// Retrieve and set the detail properties from the specified heightfield.
/// This includes detail distance, density, and resolution per patch.
/// </summary>
/// <param name="session">Current Houdini Engine session</param>
/// <param name="geoID">Heightfield object</param>
/// <param name="partID">Heightfield layer</param>
/// <param name="detailProperties">Reference to a HEU_DetailProperties which will
/// be populated.</param>
public static void PopulateDetailProperties(HEU_SessionBase session, HAPI_NodeId geoID,
HAPI_PartId partID, ref HEU_DetailProperties detailProperties)
{
// Detail distance
HAPI_AttributeInfo detailDistanceAttrInfo = new HAPI_AttributeInfo();
int[] detailDistances = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_DISTANCE, ref detailDistanceAttrInfo, ref detailDistances,
session.GetAttributeIntData);
// Detail density
HAPI_AttributeInfo detailDensityAttrInfo = new HAPI_AttributeInfo();
float[] detailDensity = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_DENSITY, ref detailDensityAttrInfo, ref detailDensity,
session.GetAttributeFloatData);
// Scatter Detail Resolution Per Patch (note that Detail Resolution comes from HF layer size)
HAPI_AttributeInfo resolutionPatchAttrInfo = new HAPI_AttributeInfo();
int[] resolutionPatches = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID,
HEU_Defines.HEIGHTFIELD_DETAIL_RESOLUTION_PER_PATCH, ref resolutionPatchAttrInfo,
ref resolutionPatches, session.GetAttributeIntData);
if (detailProperties == null)
{
detailProperties = new HEU_DetailProperties();
}
// Unity only supports 1 set of detail resolution properties per terrain
int arraySize = 1;
if (detailDistanceAttrInfo.exists && detailDistances.Length >= arraySize)
{
detailProperties._detailDistance = detailDistances[0];
}
if (detailDensityAttrInfo.exists && detailDensity.Length >= arraySize)
{
detailProperties._detailDensity = detailDensity[0];
}
if (resolutionPatchAttrInfo.exists && resolutionPatches.Length >= arraySize)
{
detailProperties._detailResolutionPerPatch = resolutionPatches[0];
}
}
/// <summary>
/// Returns the Unity script attribute value, if found, on the specified geo's part.
/// The attribute must be of string type, and owned by detail.
/// </summary>
/// <param name="session">Session that the asset resides in</param>
/// <param name="geoID">The geo node's ID</param>
/// <param name="partID">The part's ID</param>
/// <returns>The name of the Unity script, or null if not found</returns>
public static string GetUnityScriptAttributeValue(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID)
{
HAPI_AttributeInfo scriptAttributeInfo = new HAPI_AttributeInfo();
int[] scriptAttr = new int[0];
string scriptString = null;
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_PluginSettings.UnityScriptAttributeName, ref scriptAttributeInfo, ref scriptAttr, session.GetAttributeStringData);
if (scriptAttributeInfo.exists)
{
if (scriptAttr.Length > 0)
{
scriptString = HEU_SessionManager.GetString(scriptAttr[0]);
}
}
return scriptString;
}
private void GetPartLayerAttributes(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, HEU_VolumeLayer layer)
{
// 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, geoID, partID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
layer._tile = tileAttrData[0];
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
}
else
{
layer._tile = 0;
}
layer._hasLayerAttributes = HEU_TerrainUtility.VolumeLayerHasAttributes(session, geoID, partID);
}
private void GetPartLayerAttributes(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, HEU_VolumeLayer layer)
{
// 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, geoID, partID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
layer._tile = tileAttrData[0];
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
}
else
{
layer._tile = 0;
}
string[] layerAttrNames =
{
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_DIFFUSE_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_MASK_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_NORMAL_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_NORMAL_SCALE_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_METALLIC_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SMOOTHNESS_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SPECULAR_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_OFFSET_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_SIZE_ATTR
};
// Check if any of the layer attribute names show up in the existing primitive attributes
layer._hasLayerAttributes = false;
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
bool bResult = false;
foreach (string layerAttr in layerAttrNames)
{
bResult = session.GetAttributeInfo(geoID, partID, layerAttr, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM, ref attrInfo);
if (bResult && attrInfo.exists)
{
layer._hasLayerAttributes = true;
break;
}
}
}
/// <summary>
/// Returns the Unity script attribute value, if found, on the specified geo's part.
/// The attribute must be of string type, and owned by detail.
/// </summary>
/// <param name="session">Session that the asset resides in</param>
/// <param name="geoID">The geo node's ID</param>
/// <param name="partID">The part's ID</param>
/// <returns>The name of the Unity script, or null if not found</returns>
public static string GetUnityScriptAttributeValue(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID)
{
HAPI_AttributeInfo scriptAttributeInfo = new HAPI_AttributeInfo();
int[] scriptAttr = new int[0];
string scriptString = null;
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_PluginSettings.UnityScriptAttributeName, ref scriptAttributeInfo, ref scriptAttr, session.GetAttributeStringData);
if (scriptAttributeInfo.exists)
{
if (scriptAttributeInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_DETAIL)
{
Debug.LogWarningFormat("Houdini Engine for Unity only supports {0} as detail attributes!", HEU_PluginSettings.UnityScriptAttributeName);
}
else if (scriptAttr.Length > 0)
{
scriptString = HEU_SessionManager.GetString(scriptAttr[0]);
}
}
return scriptString;
}
/// <summary>
/// Assign Unity layer to the GameObject if found on the part as attribute.
/// </summary>
/// <param name="session"></param>
/// <param name="geoID"></param>
/// <param name="partID"></param>
/// <param name="gameObject"></param>
public static void AssignUnityLayer(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID, GameObject gameObject)
{
HAPI_AttributeInfo layerAttrInfo = new HAPI_AttributeInfo();
int[] layerAttr = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_PluginSettings.UnityLayerAttributeName, ref layerAttrInfo, ref layerAttr, session.GetAttributeStringData);
if (layerAttrInfo.exists)
{
string layerStr = HEU_SessionManager.GetString(layerAttr[0]);
if (layerStr.Length > 0)
{
int layer = LayerMask.NameToLayer(layerStr);
if (layer < 0)
{
Debug.LogWarningFormat("Unity layer '{0}' does not exist for current project. Add the layer in order to use it!", layerStr);
}
else
{
HEU_GeneralUtility.SetLayer(gameObject, layer, true);
}
}
}
}
/// <summary>
/// Assign the Unity tag to the GameObject if found on the part as attribute.
/// </summary>
public static void AssignUnityTag(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID, GameObject gameObject)
{
HAPI_AttributeInfo tagAttrInfo = new HAPI_AttributeInfo();
int[] tagAttr = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_PluginSettings.UnityTagAttributeName, ref tagAttrInfo, ref tagAttr, session.GetAttributeStringData);
if (tagAttrInfo.exists)
{
string tag = HEU_SessionManager.GetString(tagAttr[0]);
if (tag.Length > 0)
{
try
{
SetTag(gameObject, tag, true);
}
catch (Exception ex)
{
Debug.LogWarning("Tag exception: " + ex.ToString());
Debug.LogWarningFormat("Unity tag '{0}' does not exist for current project. Add the tag in order to use it!", tag);
}
}
}
}
/// <summary>
/// Returns the single string value from Attribute with given name and owner type, or null if failed.
/// </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="attrName">Name of the attribute to query</param>
/// <param name="attrOwner">Owner type of the attribute</param>
/// <returns>Valid string if successful, otherwise returns null</returns>
public static string GetAttributeStringValueSingle(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID, string attrName, HAPI_AttributeOwner attrOwner)
{
if (string.IsNullOrEmpty(attrName))
{
return null;
}
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
int[] stringHandle = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attrName, ref attrInfo, ref stringHandle, session.GetAttributeStringData);
if (attrInfo.exists)
{
if (attrInfo.owner != attrOwner)
{
Debug.LogWarningFormat("Expected {0} attribute owner for attribute {1} but got {2}!", attrOwner, attrName, attrInfo.owner);
}
else if (stringHandle.Length > 0)
{
return HEU_SessionManager.GetString(stringHandle[0]);
}
}
return null;
}
private bool LoadLayerColorFromAttribute(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, string attrName, ref Color colorValue)
{
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
float[] attrValues = new float[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, attrName, ref attrInfo, ref attrValues, session.GetAttributeFloatData);
if (attrValues != null && attrValues.Length >= 3 && attrInfo.tupleSize >= 3)
{
colorValue[0] = attrValues[0];
colorValue[1] = attrValues[1];
colorValue[2] = attrValues[2];
if (attrInfo.tupleSize == 4 && attrValues.Length == 4)
{
colorValue[3] = attrValues[3];
}
else
{
colorValue[3] = 1f;
}
return true;
}
return false;
}
/// <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;
}
}
}
}
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 void UpdateLayerFromPart(HEU_SessionBase session, HEU_PartData part)
{
HEU_GeoNode geoNode = part.ParentGeoNode;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(geoNode.GeoID, part.PartID, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
return;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
part.SetVolumeLayerName(volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
HEU_VolumeLayer.HFLayerType layerType = GetHeightfieldLayerType(session, geoNode.GeoID, part.PartID, volumeName);
HEU_VolumeLayer layer = GetLayer(volumeName);
if (layer == null)
{
layer = new HEU_VolumeLayer();
layer._layerName = volumeName;
if (layerType == HEU_VolumeLayer.HFLayerType.HEIGHT)
{
_layers.Insert(0, layer);
}
else if(layerType != HEU_VolumeLayer.HFLayerType.MASK)
{
_layers.Add(layer);
}
}
layer._part = part;
layer._xLength = volumeInfo.xLength;
layer._yLength = volumeInfo.yLength;
layer._layerType = layerType;
if (layerType != HEU_VolumeLayer.HFLayerType.MASK)
{
GetPartLayerAttributes(session, geoNode.GeoID, part.PartID, layer);
}
if (layerType != HEU_VolumeLayer.HFLayerType.HEIGHT)
{
// Non-height parts don't have any outputs as they are simply layers carrying info
part.DestroyAllData();
}
else
{
// Height part
// Might contain terrain properties via attributes (i.e. not layer specific, but for entire terrain)
// Scatter Tree Prototypes
List<HEU_TreePrototypeInfo> treePrototypeInfos = HEU_TerrainUtility.GetTreePrototypeInfosFromPart(session, geoNode.GeoID, part.PartID);
if (treePrototypeInfos != null)
{
if (_scatterTrees == null)
{
_scatterTrees = new HEU_VolumeScatterTrees();
}
_scatterTrees._treePrototypInfos = treePrototypeInfos;
}
// Detail distance
HAPI_AttributeInfo detailDistanceAttrInfo = new HAPI_AttributeInfo();
int[] detailDistances = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoNode.GeoID, part.PartID,
HEU_Defines.HEIGHTFIELD_DETAIL_DISTANCE, ref detailDistanceAttrInfo, ref detailDistances,
session.GetAttributeIntData);
// Scatter Detail Resolution Per Patch (note that Detail Resolution comes from HF layer size)
HAPI_AttributeInfo resolutionPatchAttrInfo = new HAPI_AttributeInfo();
int[] resolutionPatches = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoNode.GeoID, part.PartID,
HEU_Defines.HEIGHTFIELD_DETAIL_RESOLUTION_PER_PATCH, ref resolutionPatchAttrInfo,
ref resolutionPatches, session.GetAttributeIntData);
if (_detailProperties == null)
{
_detailProperties = new HEU_DetailProperties();
}
// Unity only supports 1 set of detail resolution properties per terrain
int arraySize = 1;
if (detailDistanceAttrInfo.exists && detailDistances.Length >= arraySize)
{
_detailProperties._detailDistance = detailDistances[0];
}
if (resolutionPatchAttrInfo.exists && resolutionPatches.Length >= arraySize)
{
_detailProperties._detailResolutionPerPatch = resolutionPatches[0];
}
}
if (!_updatedLayers.Contains(layer))
{
if (layerType == HEU_VolumeLayer.HFLayerType.HEIGHT)
{
_updatedLayers.Insert(0, layer);
}
else if (layerType != HEU_VolumeLayer.HFLayerType.MASK)
{
_updatedLayers.Add(layer);
}
}
}
public void ProcessVolumeParts(HEU_SessionBase session, List <HEU_PartData> volumeParts, bool bRebuild)
{
int numVolumeParts = volumeParts.Count;
if (numVolumeParts == 0)
{
DestroyVolumeCache();
}
else if (_volumeCaches == null)
{
_volumeCaches = new List <HEU_VolumeCache>();
}
// First update volume caches. Each volume cache represents a set of terrain layers grouped by tile index.
// Therefore each volume cache represents a potential Unity Terrain (containing layers)
_volumeCaches = HEU_VolumeCache.UpdateVolumeCachesFromParts(session, this, volumeParts, _volumeCaches);
// Heightfield scatter nodes come in as mesh-type parts with attribute instancing.
// So process them here to get all the tree/detail instance scatter information.
int numParts = _parts.Count;
for (int i = 0; i < numParts; ++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, GeoID, _parts[i].PartID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData))
{
if (tileAttrData != null && tileAttrData.Length > 0)
{
terrainTile = tileAttrData[0];
}
}
// Find the volumecache associated with this part using the terrain tile index
HEU_VolumeCache volumeCache = GetVolumeCacheByTileIndex(terrainTile);
if (volumeCache == null)
{
continue;
}
HEU_VolumeLayer volumeLayer = volumeCache.GetLayer(_parts[i].GetVolumeLayerName());
if (volumeLayer != null && volumeLayer._layerType == HFLayerType.DETAIL)
{
// Clear out outputs since it might have been created when the part was created.
_parts[i].DestroyAllData();
volumeCache.PopulateDetailPrototype(session, GeoID, _parts[i].PartID, volumeLayer);
}
else if (_parts[i].IsAttribInstancer())
{
HAPI_AttributeInfo treeInstAttrInfo = new HAPI_AttributeInfo();
if (HEU_GeneralUtility.GetAttributeInfo(session, GeoID, _parts[i].PartID, HEU_Defines.HEIGHTFIELD_TREEINSTANCE_PROTOTYPEINDEX, ref treeInstAttrInfo))
{
if (treeInstAttrInfo.exists && treeInstAttrInfo.count > 0)
{
// Clear out outputs since it might have been created when the part was created.
_parts[i].DestroyAllData();
// Mark the instancers as having been created so that the object instancer step skips this.
_parts[i].ObjectInstancesBeenGenerated = true;
// Now populate scatter trees based on attributes on this part
volumeCache.PopulateScatterTrees(session, GeoID, _parts[i].PartID, treeInstAttrInfo.count);
}
}
}
}
// Now generate the terrain for each volume cache
foreach (HEU_VolumeCache cache in _volumeCaches)
{
cache.GenerateTerrainWithAlphamaps(session, ParentAsset, bRebuild);
cache.IsDirty = false;
}
}
// LOGIC -----------------------------------------------------------------------------------------------------
public static List<HEU_VolumeCache> UpdateVolumeCachesFromParts(HEU_SessionBase session, HEU_GeoNode ownerNode, List<HEU_PartData> volumeParts, List<HEU_VolumeCache> volumeCaches)
{
HEU_HoudiniAsset parentAsset = ownerNode.ParentAsset;
foreach (HEU_VolumeCache cache in volumeCaches)
{
// Remove current volume caches from parent asset.
// These get added back in below.
parentAsset.RemoveVolumeCache(cache);
// Mark the cache for updating
cache.StartUpdateLayers();
}
// This will keep track of volume caches still in use
List<HEU_VolumeCache> updatedCaches = new List<HEU_VolumeCache>();
int numParts = volumeParts.Count;
for (int i = 0; i < numParts; ++i)
{
// 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, ownerNode.GeoID, volumeParts[i].PartID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
int tile = tileAttrData[0];
HEU_VolumeCache volumeCache = null;
// Find cache in updated list
for (int j = 0; j < updatedCaches.Count; ++j)
{
if (updatedCaches[j] != null && updatedCaches[j].TileIndex == tile)
{
volumeCache = updatedCaches[j];
break;
}
}
if (volumeCache != null)
{
volumeCache.UpdateLayerFromPart(session, volumeParts[i]);
// Skip adding new cache since already found in updated list
continue;
}
// Find existing cache in old list
if (volumeCaches != null && volumeCaches.Count > 0)
{
for(int j = 0; j < volumeCaches.Count; ++j)
{
if (volumeCaches[j] != null && volumeCaches[j].TileIndex == tile)
{
volumeCache = volumeCaches[j];
break;
}
}
}
// Create new cache for this tile if not found
if (volumeCache == null)
{
volumeCache = ScriptableObject.CreateInstance<HEU_VolumeCache>();
volumeCache.Initialize(ownerNode, tile);
volumeCache.StartUpdateLayers();
}
volumeCache.UpdateLayerFromPart(session, volumeParts[i]);
if (!updatedCaches.Contains(volumeCache))
{
updatedCaches.Add(volumeCache);
}
}
else
{
// No tile index. Most likely a single terrain tile.
HEU_VolumeCache volumeCache = null;
if (updatedCaches.Count == 0)
{
// Create a single volume cache, or use existing if it was just 1.
// If more than 1 volume cache exists, this will recreate a single one
if (volumeCaches == null || volumeCaches.Count != 1)
{
volumeCache = ScriptableObject.CreateInstance<HEU_VolumeCache>();
volumeCache.Initialize(ownerNode, 0);
volumeCache.StartUpdateLayers();
}
else if (volumeCaches.Count == 1)
{
// Keep the single volumecache
volumeCache = volumeCaches[0];
}
if (!updatedCaches.Contains(volumeCache))
{
updatedCaches.Add(volumeCache);
}
}
else
{
// Reuse the updated cache
volumeCache = updatedCaches[0];
}
volumeCache.UpdateLayerFromPart(session, volumeParts[i]);
}
}
foreach (HEU_VolumeCache cache in updatedCaches)
{
// Add to parent for UI and preset
parentAsset.AddVolumeCache(cache);
// Finish update by keeping just the layers in use for each volume cache.
cache.FinishUpdateLayers();
}
return updatedCaches;
}
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 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(HEU_Defines.HAPI_HEIGHTFIELD_LAYERNAME_HEIGHT);
bool bMaskPart = volumeName.Equals(HEU_Defines.HAPI_HEIGHTFIELD_LAYERNAME_MASK);
//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 (bMaskPart)
{
continue;
}
HEU_LoadBufferVolumeLayer layer = new HEU_LoadBufferVolumeLayer();
layer._layerName = volumeName;
layer._partID = volumeParts[i].id;
layer._heightMapWidth = volumeInfo.xLength;
layer._heightMapHeight = volumeInfo.yLength;
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);
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);
// 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 (bHeightPart)
{
// Height layer always first layer
volumeBuffer._layers.Insert(0, layer);
volumeBuffer._heightMapWidth = layer._heightMapWidth;
volumeBuffer._heightMapHeight = layer._heightMapHeight;
volumeBuffer._terrainSizeX = layer._terrainSizeX;
volumeBuffer._terrainSizeY = layer._terrainSizeY;
volumeBuffer._heightRange = (layer._maxHeight - layer._minHeight);
// 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;
}
}
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 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)
{
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;
}
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);
}
}
// 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.PopulateScatterInfo(session, nodeID, scatterInstancerParts[i].id, scatterInstancerParts[i].pointCount, ref volumeBuffer._scatterTrees);
}
return true;
}
private void GetPartLayerAttributes(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, HEU_VolumeLayer layer)
{
// 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, geoID, partID, "tile", ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
layer._tile = tileAttrData[0];
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
}
else
{
layer._tile = 0;
}
// Get the layer textures, and other layer values from attributes
Texture2D defaultTexture = LoadDefaultSplatTexture();
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Diffuse) && (layer._diffuseTexture == null || layer._diffuseTexture == defaultTexture))
{
layer._diffuseTexture = LoadLayerTextureFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_DIFFUSE_ATTR);
if (layer._diffuseTexture == null)
{
layer._diffuseTexture = defaultTexture;
}
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Mask) && layer._maskTexture == null)
{
layer._maskTexture = LoadLayerTextureFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_MASK_ATTR);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Normal) && layer._normalTexture == null)
{
layer._normalTexture = LoadLayerTextureFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_NORMAL_ATTR);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.NormalScale))
{
LoadLayerFloatFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_NORMAL_SCALE_ATTR, ref layer._normalScale);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Metallic))
{
LoadLayerFloatFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_METALLIC_ATTR, ref layer._metallic);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Smoothness))
{
LoadLayerFloatFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SMOOTHNESS_ATTR, ref layer._smoothness);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Specular))
{
LoadLayerColorFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SPECULAR_ATTR, ref layer._specularColor);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.TileOffset))
{
LoadLayerVector2FromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_OFFSET_ATTR, ref layer._tileOffset);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.TileSize))
{
LoadLayerVector2FromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_SIZE_ATTR, ref layer._tileSize);
}
}
/// <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 || parts[j].IsPartVolume())
{
// This prevents instances being created unnecessarily (e.g. part hasn't changed since last cook).
// Or for volumes that might have instance attributes.
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];
HEU_GeneralUtility.GetAttribute(session, _geoNodes[i].GeoID, parts[j].PartID, unityInstanceAttrName, ref unityInstanceAttrInfo, ref scriptAttr, session.GetAttributeStringData);
if (unityInstanceAttrInfo.exists)
{
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.
// Originally had a warning here, but unnecessary as in some cases (e.g. heightfield attrbiutes) the
// attribute owner could be changed in HAPI.
}
}
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);
}
}
}
}
}
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);
}
if (outputGameObject != null)
{
_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;
}
public bool PopulateGeometryData(HEU_SessionBase session)
{
// Get vertex position
HAPI_AttributeInfo posAttrInfo = new HAPI_AttributeInfo();
_posAttr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_POSITION, ref posAttrInfo, ref _posAttr, session.GetAttributeFloatData);
if (!posAttrInfo.exists)
{
return false;
}
else if (posAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
Debug.LogErrorFormat("{0} only supports position as POINT attribute. Position attribute of {1} type not supported!", HEU_Defines.HEU_PRODUCT_NAME, posAttrInfo.owner);
return false;
}
// Get UV attributes
_uvAttrInfo = new HAPI_AttributeInfo();
_uvAttrInfo.tupleSize = 2;
_uvAttr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_UV, ref _uvAttrInfo, ref _uvAttr, session.GetAttributeFloatData);
// Get UV2 attributes
_uv2AttrInfo = new HAPI_AttributeInfo();
_uv2AttrInfo.tupleSize = 2;
_uv2Attr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_UV2, ref _uv2AttrInfo, ref _uv2Attr, session.GetAttributeFloatData);
// Get UV3 attributes
_uv3AttrInfo = new HAPI_AttributeInfo();
_uv3AttrInfo.tupleSize = 2;
_uv3Attr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_UV3, ref _uv3AttrInfo, ref _uv3Attr, session.GetAttributeFloatData);
// Get normal attributes
_normalAttrInfo = new HAPI_AttributeInfo();
_normalAttr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_NORMAL, ref _normalAttrInfo, ref _normalAttr, session.GetAttributeFloatData);
// Get colour attributes
_colorAttrInfo = new HAPI_AttributeInfo();
_colorAttr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_COLOR, ref _colorAttrInfo, ref _colorAttr, session.GetAttributeFloatData);
// Get alpha attributes
_alphaAttrInfo = new HAPI_AttributeInfo();
_alphaAttr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_ALPHA, ref _alphaAttrInfo, ref _alphaAttr, session.GetAttributeFloatData);
// Get tangent attributes
_tangentAttrInfo = new HAPI_AttributeInfo();
_tangentAttr = new float[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_Defines.HAPI_ATTRIB_TANGENT, ref _tangentAttrInfo, ref _tangentAttr, session.GetAttributeFloatData);
// Warn user since we are splitting points by attributes, might prevent some attrributes
// to be transferred over properly
if (_normalAttrInfo.exists && _normalAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT
&& _normalAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_VERTEX)
{
Debug.LogWarningFormat("{0}: Normals are not declared as point or vertex attributes.\nSet them as per point or vertices in HDA.", _partName);
}
if (_tangentAttrInfo.exists && _tangentAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT
&& _tangentAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_VERTEX)
{
Debug.LogWarningFormat("{0}: Tangents are not declared as point or vertex attributes.\nSet them as per point or vertices in HDA.", _partName);
}
if (_colorAttrInfo.exists && _colorAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT
&& _colorAttrInfo.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_VERTEX)
{
Debug.LogWarningFormat("{0}: Colours are not declared as point or vertex attributes."
+ "\nCurrently set as owner type {1}. Set them as per point or vertices in HDA.", _partName, _colorAttrInfo.owner);
}
_groups = HEU_SessionManager.GetGroupNames(GeoID, HAPI_GroupType.HAPI_GROUPTYPE_PRIM);
_allCollisionVertexList = new int[_vertexList.Length];
_allCollisionFaceIndices = new int[_partInfo.faceCount];
_hasGroupGeometry = false;
// We go through each group, building up a triangle list of indices that belong to it
// For strictly colliders (ie. non-rendering), we only create geometry colliders
for (int g = 0; g < _groups.Length; ++g)
{
string groupName = _groups[g];
// Query HAPI to get the group membership.
// This is returned as an array of 1s for vertices that belong to this group.
int[] membership = null;
HEU_SessionManager.GetGroupMembership(session, GeoID, PartID, HAPI_GroupType.HAPI_GROUPTYPE_PRIM, groupName, ref membership);
bool bIsCollidable = groupName.Contains(HEU_PluginSettings.CollisionGroupName);
bool bIsRenderCollidable = groupName.Contains(HEU_PluginSettings.RenderedCollisionGroupName);
if (bIsCollidable || bIsRenderCollidable)
{
// Extract vertex indices for this collision group
int[] groupVertexList = new int[_vertexList.Length];
groupVertexList.Init<int>(-1);
int groupVertexListCount = 0;
List<int> allFaceList = new List<int>();
for (int f = 0; f < membership.Length; ++f)
{
if (membership[f] > 0)
{
// This face is a member of the specified group
allFaceList.Add(f);
groupVertexList[f * 3 + 0] = _vertexList[f * 3 + 0];
groupVertexList[f * 3 + 1] = _vertexList[f * 3 + 1];
groupVertexList[f * 3 + 2] = _vertexList[f * 3 + 2];
// Mark vertices as used
_allCollisionVertexList[f * 3 + 0] = 1;
_allCollisionVertexList[f * 3 + 1] = 1;
_allCollisionVertexList[f * 3 + 2] = 1;
// Mark face as used
_allCollisionFaceIndices[f] = 1;
groupVertexListCount += 3;
}
}
if (groupVertexListCount > 0)
{
_groupSplitVertexIndices.Add(groupName, groupVertexList);
_groupSplitFaceIndices.Add(groupName, allFaceList);
_hasGroupGeometry = true;
//Debug.Log("Adding collision group: " + groupName + " with index count: " + _groupVertexList.Length);
}
}
}
if (_hasGroupGeometry)
{
// Construct vertex list for all other vertices that are not part of collision geometry
int[] remainingGroupSplitFaces = new int[_vertexList.Length];
remainingGroupSplitFaces.Init<int>(-1);
bool bMainSplitGroup = false;
List<int> remainingGroupSplitFaceIndices = new List<int>();
for (int cv = 0; cv < _allCollisionVertexList.Length; ++cv)
{
if (_allCollisionVertexList[cv] == 0)
{
// Unused index, so add it to unused vertex list
remainingGroupSplitFaces[cv] = _vertexList[cv];
bMainSplitGroup = true;
}
}
for (int cf = 0; cf < _allCollisionFaceIndices.Length; ++cf)
{
if (_allCollisionFaceIndices[cf] == 0)
{
remainingGroupSplitFaceIndices.Add(cf);
}
}
if (bMainSplitGroup)
{
_groupSplitVertexIndices.Add(HEU_Defines.HEU_DEFAULT_GEO_GROUP_NAME, remainingGroupSplitFaces);
_groupSplitFaceIndices.Add(HEU_Defines.HEU_DEFAULT_GEO_GROUP_NAME, remainingGroupSplitFaceIndices);
//Debug.Log("Adding remaining group with index count: " + remainingGroupSplitFaces.Length);
}
}
else
{
_groupSplitVertexIndices.Add(HEU_Defines.HEU_DEFAULT_GEO_GROUP_NAME, _vertexList);
List<int> allFaces = new List<int>();
for (int f = 0; f < _partInfo.faceCount; ++f)
{
allFaces.Add(f);
}
_groupSplitFaceIndices.Add(HEU_Defines.HEU_DEFAULT_GEO_GROUP_NAME, allFaces);
//Debug.Log("Adding single non-group with index count: " + _vertexList.Length);
}
// We'll be generating the normals if they're not provided by Houdini
// For every vertex, we'll hold list of other vertices that it shares faces with (ie. connected to)
_sharedNormalIndices = null;
_cosineThreshold = 0f;
if (!_normalAttrInfo.exists)
{
_sharedNormalIndices = new List<VertexEntry>[_vertexList.Length];
_cosineThreshold = Mathf.Cos(HEU_PluginSettings.NormalGenerationThresholdAngle * Mathf.Deg2Rad);
for (int i = 0; i < _vertexList.Length; ++i)
{
_sharedNormalIndices[i] = new List<VertexEntry>();
}
}
return true;
}
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);
}
public void PopulateUnityMaterialData(HEU_SessionBase session)
{
// First we look for Unity and Substance material attributes on faces.
// We fill up the following dictionary with unique Unity + Substance material information
_unityMaterialInfos = new Dictionary<int, HEU_UnityMaterialInfo>();
_unityMaterialAttrInfo = new HAPI_AttributeInfo();
_unityMaterialAttrName = new HAPI_StringHandle[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_PluginSettings.UnityMaterialAttribName, ref _unityMaterialAttrInfo, ref _unityMaterialAttrName, session.GetAttributeStringData);
// Store a local copy of the actual string values since the indices get overwritten by the next call to session.GetAttributeStringData.
// Using a dictionary to only query the unique strings, as doing all of them is very slow and unnecessary.
_unityMaterialAttrStringsMap = new Dictionary<HAPI_StringHandle, string>();
foreach (HAPI_StringHandle strHandle in _unityMaterialAttrName)
{
if (!_unityMaterialAttrStringsMap.ContainsKey(strHandle))
{
string materialName = HEU_SessionManager.GetString(strHandle, session);
if (string.IsNullOrEmpty(materialName))
{
// Warn user of empty string, but add it anyway to our map so we don't keep trying to parse it
Debug.LogWarningFormat("Found empty material attribute value for part {0}.", _partName);
}
_unityMaterialAttrStringsMap.Add(strHandle, materialName);
//Debug.LogFormat("Added Unity material: " + materialName);
}
}
_substanceMaterialAttrNameInfo = new HAPI_AttributeInfo();
_substanceMaterialAttrName = new HAPI_StringHandle[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_PluginSettings.UnitySubMaterialAttribName, ref _substanceMaterialAttrNameInfo, ref _substanceMaterialAttrName, session.GetAttributeStringData);
_substanceMaterialAttrStringsMap = new Dictionary<HAPI_StringHandle, string>();
foreach (HAPI_StringHandle strHandle in _substanceMaterialAttrName)
{
if (!_substanceMaterialAttrStringsMap.ContainsKey(strHandle))
{
string substanceName = HEU_SessionManager.GetString(strHandle, session);
if (string.IsNullOrEmpty(substanceName))
{
// Warn user of empty string, but add it anyway to our map so we don't keep trying to parse it
Debug.LogWarningFormat("Found invalid substance material attribute value ({0}) for part {1}.",
_partName, substanceName);
}
_substanceMaterialAttrStringsMap.Add(strHandle, substanceName);
//Debug.LogFormat("Added Substance material: " + substanceName);
}
}
_substanceMaterialAttrIndexInfo = new HAPI_AttributeInfo();
_substanceMaterialAttrIndex = new int[0];
HEU_GeneralUtility.GetAttribute(session, GeoID, PartID, HEU_PluginSettings.UnitySubMaterialIndexAttribName, ref _substanceMaterialAttrIndexInfo, ref _substanceMaterialAttrIndex, session.GetAttributeIntData);
if (_unityMaterialAttrInfo.exists)
{
if (_unityMaterialAttrInfo.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_DETAIL && _unityMaterialAttrName.Length > 0)
{
CreateMaterialInfoEntryFromAttributeIndex(this, 0);
// Detail unity material attribute means we can treat it as single material
_singleFaceUnityMaterial = true;
}
else
{
for(HAPI_StringHandle i = 0; i < _unityMaterialAttrName.Length; ++i)
{
CreateMaterialInfoEntryFromAttributeIndex(this, i);
}
}
}
}
