/// <summary>
/// Returns true if any of the geo data has changed and
/// therefore requires regeneration.
/// </summary>
/// <returns>True if changes occurred internal to geo data</returns>
public bool HasGeoNodeChanged(HEU_SessionBase session)
{
// Note: _geoInfo.hasMaterialChanged has been deprecated so we're not checking that
if (!session.GetGeoInfo(GeoID, ref _geoInfo))
{
return(false);
}
else if (_geoInfo.type == HAPI_GeoType.HAPI_GEOTYPE_INPUT)
{
return((_inputNode != null) ? _inputNode.RequiresCook : false);
}
else if (_geoInfo.isTemplated && !HEU_PluginSettings.CookTemplatedGeos && !_geoInfo.isEditable)
{
return(false);
}
else if (!_geoInfo.hasGeoChanged)
{
return(false);
}
// Commented out to allow non-display geo to be updated
//else if (!_geoInfo.isDisplayGeo && (_geoInfo.type != HAPI_GeoType.HAPI_GEOTYPE_CURVE && !HEU_PluginSettings.CookTemplatedGeos && _geoInfo.isTemplated))
//{
// return false;
//}
return(true);
}
public void Initialize(HEU_SessionBase session, HAPI_ObjectInfo objectInfo, HAPI_Transform objectTranform, HEU_HoudiniAsset parentAsset)
{
_objectInfo = objectInfo;
_objectTransform = objectTranform;
_parentAsset = parentAsset;
SyncWithObjectInfo(session);
// Translate transform to Unity (TODO)
List<HAPI_GeoInfo> geoInfos = new List<HAPI_GeoInfo>();
// Get display geo info
HAPI_GeoInfo displayGeoInfo = new HAPI_GeoInfo();
if(!session.GetDisplayGeoInfo(_objectInfo.nodeId, ref displayGeoInfo))
{
return;
}
//Debug.LogFormat("Found geoinfo with name {0} and id {1}", HEU_SessionManager.GetString(displayGeoInfo.nameSH, session), displayGeoInfo.nodeId);
geoInfos.Add(displayGeoInfo);
// TODO: The following editable node query also retrieves geo nodes for terrain with visualization nodes. Need to review to check if we're using the
// correct query flags, and handling returned nodes correctly.
// 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))
{
geoInfos.Add(editGeoInfo);
}
}
}
}
//Debug.LogFormat("Object 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);
// Go through geo infos to create geometry
int numGeoInfos = geoInfos.Count;
for(int i = 0; i < numGeoInfos; ++i)
{
// Create GeoNode for each
_geoNodes.Add(CreateGeoNode(session, geoInfos[i]));
}
// This has been moved to GenerateGeometry but kept here just in case.
//ApplyObjectTransformToGeoNodes();
}
/// <summary>
/// Gets the group names for given group type.
/// </summary>
/// <param name="nodeID">The node ID</param>
/// <param name="groupType">The group type to query</param>
/// <returns>Populated array of string names, or null if failed</returns>
public static string[] GetGroupNames(HAPI_NodeId nodeID, HAPI_PartId partID, HAPI_GroupType groupType, bool isInstanced)
{
HEU_SessionBase session = GetOrCreateDefaultSession();
if (session != null)
{
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if (session.GetGeoInfo(nodeID, ref geoInfo))
{
int groupCount = 0;
if(!isInstanced)
{
groupCount = geoInfo.getGroupCountByType(groupType); ;
}
else
{
int pointGroupCount = 0;
int primGroupCount = 0;
if (session.GetGroupCountOnPackedInstancePart(nodeID, partID, out pointGroupCount, out primGroupCount))
{
groupCount = (groupType == HAPI_GroupType.HAPI_GROUPTYPE_POINT) ? pointGroupCount : primGroupCount;
}
}
if(groupCount <= 0)
{
return null;
}
int[] groupNames = new int[groupCount];
bool bSuccess = false;
if(!isInstanced)
{
bSuccess = session.GetGroupNames(nodeID, groupType, ref groupNames, groupCount);
}
else
{
bSuccess = session.GetGroupNamesOnPackedInstancePart(nodeID, partID, groupType, ref groupNames, groupCount);
}
if (bSuccess)
{
string[] nameStrings = new string[groupCount];
for (int i = 0; i < groupCount; ++i)
{
nameStrings[i] = GetString(groupNames[i]);
}
return nameStrings;
}
}
}
return null;
}
/// <summary>
/// Helper to set heightfield data for a specific volume node.
/// Used for a specific terrain layer.
/// </summary>
/// <param name="session">Session that the volume node resides in.</param>
/// <param name="volumeNodeID">ID of the target volume node</param>
/// <param name="partID">Part ID</param>
/// <param name="heightValues">Array of height or alpha values</param>
/// <param name="heightFieldName">Name of the layer</param>
/// <returns>True if successfully uploaded heightfield values</returns>
public bool SetHeightFieldData(HEU_SessionBase session, HAPI_NodeId volumeNodeID, HAPI_PartId partID, float[] heightValues, string heightFieldName, ref HAPI_VolumeInfo baseVolumeInfo)
{
// Cook the node to get infos below
if (!session.CookNode(volumeNodeID, false))
{
return(false);
}
// Get Geo, Part, and Volume infos
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if (!session.GetGeoInfo(volumeNodeID, ref geoInfo))
{
return(false);
}
HAPI_PartInfo partInfo = new HAPI_PartInfo();
if (!session.GetPartInfo(geoInfo.nodeId, partID, ref partInfo))
{
return(false);
}
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
if (!session.GetVolumeInfo(volumeNodeID, partInfo.id, ref volumeInfo))
{
return(false);
}
volumeInfo.tileSize = 1;
// Use same transform as base layer
volumeInfo.transform = baseVolumeInfo.transform;
if (!session.SetVolumeInfo(volumeNodeID, partInfo.id, ref volumeInfo))
{
Debug.LogError("Unable to set volume info on input heightfield node!");
return(false);
}
// Now set the height data
if (!session.SetHeightFieldData(geoInfo.nodeId, partInfo.id, heightFieldName, heightValues, 0, heightValues.Length))
{
Debug.LogErrorFormat("Unable to set `{0}` height values on input heightfield node!\n" +
"Check your terrain sizes including Control Texture Resolution is less than the Heightmap Resolution.",
heightFieldName);
return(false);
}
return(true);
}
/// <summary>
/// Helper to set heightfield data for a specific volume node.
/// Used for a specific terrain layer.
/// </summary>
/// <param name="session">Session that the volume node resides in.</param>
/// <param name="volumeNodeID">ID of the target volume node</param>
/// <param name="partID">Part ID</param>
/// <param name="heightValues">Array of height or alpha values</param>
/// <param name="heightFieldName">Name of the layer</param>
/// <returns>True if successfully uploaded heightfield values</returns>
public bool SetHeightFieldData(HEU_SessionBase session, HAPI_NodeId volumeNodeID, HAPI_PartId partID, float[] heightValues, string heightFieldName)
{
// Cook the node to get infos below
if (!session.CookNode(volumeNodeID, false))
{
return false;
}
// Get Geo, Part, and Volume infos
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if (!session.GetGeoInfo(volumeNodeID, ref geoInfo))
{
return false;
}
HAPI_PartInfo partInfo = new HAPI_PartInfo();
if (!session.GetPartInfo(geoInfo.nodeId, partID, ref partInfo))
{
return false;
}
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
if (!session.GetVolumeInfo(volumeNodeID, partInfo.id, ref volumeInfo))
{
return false;
}
volumeInfo.tileSize = 1;
if (!session.SetVolumeInfo(volumeNodeID, partInfo.id, ref volumeInfo))
{
Debug.LogError("Unable to set volume info on input heightfield node!");
return false;
}
// Now set the height data
if (!session.SetHeightFieldData(geoInfo.nodeId, partInfo.id, heightFieldName, heightValues, 0, heightValues.Length))
{
Debug.LogError("Unable to set height values on input heightfield node!");
return false;
}
return true;
}
/// <summary>
/// Gets the group names for given group type.
/// </summary>
/// <param name="nodeID">The node ID</param>
/// <param name="groupType">The group type to query</param>
/// <returns>Populated array of string names, or null if failed</returns>
public static string[] GetGroupNames(HAPI_NodeId nodeID, HAPI_GroupType groupType)
{
HEU_SessionBase sessionBase = GetOrCreateDefaultSession();
if (sessionBase != null)
{
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if (sessionBase.GetGeoInfo(nodeID, ref geoInfo))
{
int count = geoInfo.getGroupCountByType(groupType);
int[] names = new int[count];
if (sessionBase.GetGroupNames(nodeID, groupType, ref names, count))
{
string[] nameStrings = new string[count];
for (int i = 0; i < count; ++i)
{
nameStrings[i] = GetString(names[i]);
}
return nameStrings;
}
}
}
return null;
}
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 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;
}
/// <summary>
/// Upload the base height layer into heightfield network.
/// </summary>
/// <param name="session"></param>
/// <param name="idt"></param>
/// <returns></returns>
public bool UploadHeightValuesWithTransform(HEU_SessionBase session, HEU_InputDataTerrain idt)
{
// Get Geo, Part, and Volume infos
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if (!session.GetGeoInfo(idt._heightNodeID, ref geoInfo))
{
Debug.LogError("Unable to get geo info from heightfield node!");
return false;
}
HAPI_PartInfo partInfo = new HAPI_PartInfo();
if (!session.GetPartInfo(geoInfo.nodeId, 0, ref partInfo))
{
Debug.LogError("Unable to get part info from heightfield node!");
return false;
}
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
if (!session.GetVolumeInfo(idt._heightNodeID, 0, ref volumeInfo))
{
Debug.LogError("Unable to get volume info from heightfield node!");
return false;
}
if (volumeInfo.xLength != Mathf.RoundToInt(idt._numPointsX / idt._voxelSize)
|| volumeInfo.yLength != Mathf.RoundToInt(idt._numPointsY / idt._voxelSize)
|| idt._terrainData.heightmapResolution != volumeInfo.xLength
|| idt._terrainData.heightmapResolution != volumeInfo.yLength)
{
Debug.LogError("Created heightfield in Houdini differs in voxel size from input terrain!");
return false;
}
// Update volume infos, and set it. This is required.
volumeInfo.tileSize = 1;
volumeInfo.type = HAPI_VolumeType.HAPI_VOLUMETYPE_HOUDINI;
volumeInfo.storage = HAPI_StorageType.HAPI_STORAGETYPE_FLOAT;
volumeInfo.transform = idt._transform;
volumeInfo.minX = 0;
volumeInfo.minY = 0;
volumeInfo.minZ = 0;
volumeInfo.tupleSize = 1;
volumeInfo.tileSize = 1;
volumeInfo.hasTaper = false;
volumeInfo.xTaper = 0f;
volumeInfo.yTaper = 0f;
if (!session.SetVolumeInfo(idt._heightNodeID, partInfo.id, ref volumeInfo))
{
Debug.LogError("Unable to set volume info on input heightfield node!");
return false;
}
// Now set the height data
float[,] heights = idt._terrainData.GetHeights(0, 0, volumeInfo.xLength, volumeInfo.yLength);
int sizeX = heights.GetLength(0);
int sizeY = heights.GetLength(1);
int totalSize = sizeX * sizeY;
// Convert to single array
float[] heightsArr = new float[totalSize];
for (int j = 0; j < sizeY; j++)
{
for (int i = 0; i < sizeX; i++)
{
// Flip for coordinate system change
float h = heights[i, (sizeY - j - 1)];
heightsArr[i + j * sizeX] = h * idt._heightScale;
}
}
// Set the base height layer
if (!session.SetHeightFieldData(idt._heightNodeID, 0, "height", heightsArr, 0, totalSize))
{
Debug.LogError("Unable to set height values on input heightfield node!");
return false;
}
if (!session.CommitGeo(idt._heightNodeID))
{
Debug.LogError("Unable to commit geo on input heightfield node!");
return false;
}
return true;
}
/// <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);
// 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, false))
{
postCookGeoInfos.Add(displayGeoInfo);
}
else
{
displayGeoInfo.nodeId = HEU_Defines.HEU_INVALID_NODE_ID;
}
// 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();
}
}
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());
geoNode.CalculateColliderState();
}
}
// 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;
// Updating the trasform is done in GenerateGeometry
}
// This is the old way of getting outputs. Keep it for now for legacy. TODO: Remove this later
internal void GatherAllAssetOutputsLegacy(HEU_SessionBase session, HAPI_ObjectInfo objectInfo, bool bUseOutputNodes, ref List<HEU_GeoNode> geoNodes)
{
List<HAPI_GeoInfo> geoInfos = new List<HAPI_GeoInfo>();
// Get display geo info
HAPI_GeoInfo displayGeoInfo = new HAPI_GeoInfo();
if (!session.GetDisplayGeoInfo(objectInfo.nodeId, ref displayGeoInfo))
{
return;
}
//HEU_Logger.LogFormat("Found geoinfo with name {0} and id {1}", HEU_SessionManager.GetString(displayGeoInfo.nameSH, session), displayGeoInfo.nodeId);
geoInfos.Add(displayGeoInfo);
if (bUseOutputNodes)
{
int outputCount = 0;
if (!session.GetOutputGeoCount(objectInfo.nodeId, out outputCount))
{
outputCount = 0;
}
if (outputCount > 0)
{
HAPI_GeoInfo[] outputGeoInfos = new HAPI_GeoInfo[outputCount];
if (!session.GetOutputGeoInfos(objectInfo.nodeId, ref outputGeoInfos, outputCount))
{
outputGeoInfos = new HAPI_GeoInfo[0];
}
foreach (HAPI_GeoInfo geoInfo in outputGeoInfos)
{
if (geoInfo.nodeId == displayGeoInfo.nodeId)
{
continue;
}
bool bValidOutput = true;
int parentId = HEU_HAPIUtility.GetParentNodeID(session, geoInfo.nodeId);
while (parentId >= 0)
{
if (parentId == geoInfo.nodeId)
{
// This output node is inside the display geo
// Do not use this output to avoid duplicates
bValidOutput = false;
break;
}
parentId = HEU_HAPIUtility.GetParentNodeID(session, parentId);
}
if (bValidOutput)
{
// Need to cook output geometry to get their parts
HAPI_GeoInfo cookedGeoInfo = new HAPI_GeoInfo();
session.CookNode(geoInfo.nodeId, HEU_PluginSettings.CookTemplatedGeos);
// Get the refreshed geo info
if (session.GetGeoInfo(geoInfo.nodeId, ref cookedGeoInfo))
{
geoInfos.Add(cookedGeoInfo);
}
}
}
}
}
// 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))
{
geoInfos.Add(editGeoInfo);
}
}
}
}
//HEU_Logger.LogFormat("Object 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);
// Go through geo infos to create geometry
int numGeoInfos = geoInfos.Count;
for (int i = 0; i < numGeoInfos; ++i)
{
// Create GeoNode for each
geoNodes.Add(CreateGeoNode(session, geoInfos[i]));
}
}
/// <summary>
/// Upload the base height layer into heightfield network.
/// </summary>
/// <param name="session"></param>
/// <param name="idt"></param>
/// <returns></returns>
public bool UploadHeightValuesWithTransform(HEU_SessionBase session, HEU_InputDataTerrain idt, ref HAPI_VolumeInfo volumeInfo)
{
// Get Geo, Part, and Volume infos
HAPI_GeoInfo geoInfo = new HAPI_GeoInfo();
if (!session.GetGeoInfo(idt._heightNodeID, ref geoInfo))
{
HEU_Logger.LogError("Unable to get geo info from heightfield node!");
return(false);
}
HAPI_PartInfo partInfo = new HAPI_PartInfo();
if (!session.GetPartInfo(geoInfo.nodeId, 0, ref partInfo))
{
HEU_Logger.LogError("Unable to get part info from heightfield node!");
return(false);
}
volumeInfo = new HAPI_VolumeInfo();
if (!session.GetVolumeInfo(idt._heightNodeID, 0, ref volumeInfo))
{
HEU_Logger.LogError("Unable to get volume info from heightfield node!");
return(false);
}
if ((volumeInfo.xLength - 1) != Mathf.RoundToInt(idt._numPointsX / idt._voxelSize) ||
(volumeInfo.yLength - 1) != Mathf.RoundToInt(idt._numPointsY / idt._voxelSize) ||
idt._terrainData.heightmapResolution != volumeInfo.xLength ||
idt._terrainData.heightmapResolution != volumeInfo.yLength)
{
HEU_Logger.LogWarning("Created heightfield in Houdini differs in voxel size from input terrain! Terrain may require resampling.");
}
// Update volume infos, and set it. This is required.
volumeInfo.tileSize = 1;
volumeInfo.type = HAPI_VolumeType.HAPI_VOLUMETYPE_HOUDINI;
volumeInfo.storage = HAPI_StorageType.HAPI_STORAGETYPE_FLOAT;
volumeInfo.transform = idt._transform;
volumeInfo.minX = 0;
volumeInfo.minY = 0;
volumeInfo.minZ = 0;
volumeInfo.tupleSize = 1;
volumeInfo.tileSize = 1;
volumeInfo.hasTaper = false;
volumeInfo.xTaper = 0f;
volumeInfo.yTaper = 0f;
if (!session.SetVolumeInfo(idt._heightNodeID, partInfo.id, ref volumeInfo))
{
HEU_Logger.LogError("Unable to set volume info on input heightfield node!");
return(false);
}
// Now set the height data
float[,] heights = idt._terrainData.GetHeights(0, 0, idt._terrainData.heightmapResolution, idt._terrainData.heightmapResolution);
int sizeX = heights.GetLength(0);
int sizeY = heights.GetLength(1);
int totalSize = sizeX * sizeY;
// Convert to single array
float[] heightsArr = new float[totalSize];
for (int j = 0; j < sizeY; j++)
{
for (int i = 0; i < sizeX; i++)
{
// Flip for coordinate system change
float h = heights[i, (sizeY - j - 1)];
heightsArr[i + j * sizeX] = h * idt._heightScale;
}
}
if (volumeInfo.xLength != volumeInfo.yLength)
{
HEU_Logger.LogError("Error: Houdini heightmap must be square!");
return(false);
}
if (idt._terrainData.heightmapResolution != volumeInfo.xLength)
{
// Resize heightsArr to idt._terrainData.heightmapResolution
HEU_Logger.LogWarningFormat("Attempting to resize landscape from ({0}x{1}) to ({2}x{3})", idt._terrainData.heightmapResolution, idt._terrainData.heightmapResolution, volumeInfo.xLength, volumeInfo.xLength);
heightsArr = HEU_TerrainUtility.ResampleData(heightsArr, idt._terrainData.heightmapResolution, idt._terrainData.heightmapResolution, volumeInfo.xLength, volumeInfo.xLength);
sizeX = volumeInfo.xLength;
sizeY = volumeInfo.yLength;
totalSize = sizeX * sizeY;
}
// Set the base height layer
if (!session.SetHeightFieldData(idt._heightNodeID, 0, HEU_Defines.HAPI_HEIGHTFIELD_LAYERNAME_HEIGHT, heightsArr, 0, totalSize))
{
HEU_Logger.LogError("Unable to set height values on input heightfield node!");
return(false);
}
SetTerrainDataAttributesToHeightField(session, geoInfo.nodeId, 0, idt._terrainData);
SetTreePrototypes(session, geoInfo.nodeId, 0, idt._terrainData);
if (!session.CommitGeo(idt._heightNodeID))
{
HEU_Logger.LogError("Unable to commit geo on input heightfield node!");
return(false);
}
return(true);
}
public static HEU_GenerateGeoCache GetPopulatedGeoCache(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID)
{
#if HEU_PROFILER_ON
float generateGeoCacheStartTime = Time.realtimeSinceStartup;
#endif
HEU_GenerateGeoCache geoCache = new HEU_GenerateGeoCache();
Debug.Assert(geoID != HEU_Defines.HEU_INVALID_NODE_ID, "Invalid Geo ID! Unable to update materials!");
Debug.Assert(partID != HEU_Defines.HEU_INVALID_NODE_ID, "Invalid Part ID! Unable to update materials!");
geoCache._geoInfo = new HAPI_GeoInfo();
if (!session.GetGeoInfo(geoID, ref geoCache._geoInfo))
{
return null;
}
geoCache._partInfo = new HAPI_PartInfo();
if (!session.GetPartInfo(geoID, partID, ref geoCache._partInfo))
{
return null;
}
geoCache._partName = HEU_SessionManager.GetString(geoCache._partInfo.nameSH, session);
// Unity max indices limitation!
#if UNITY_2017_3_OR_NEWER
uint UNITY_MAX_VERTS = uint.MaxValue;
#else
uint UNITY_MAX_VERTS = ushort.MaxValue;
#endif
uint maxVertexCount = Convert.ToUInt32(geoCache._partInfo.vertexCount);
if (maxVertexCount > UNITY_MAX_VERTS)
{
Debug.LogErrorFormat("Part {0} has vertex count of {1} which is above Unity maximum of {2}.\nUse Unity 2017.3+ or reduce this in Houdini.",
geoCache._partName, maxVertexCount, UNITY_MAX_VERTS);
return null;
}
geoCache._vertexList = new int[geoCache._partInfo.vertexCount];
if (!HEU_GeneralUtility.GetArray2Arg(geoID, partID, session.GetVertexList, geoCache._vertexList, 0, geoCache._partInfo.vertexCount))
{
return null;
}
geoCache._houdiniMaterialIDs = new HAPI_NodeId[geoCache._partInfo.faceCount];
if (!session.GetMaterialNodeIDsOnFaces(geoID, partID, ref geoCache._singleFaceHoudiniMaterial, geoCache._houdiniMaterialIDs, geoCache._partInfo.faceCount))
{
return null;
}
geoCache.PopulateUnityMaterialData(session);
if (!geoCache.PopulateGeometryData(session))
{
return null;
}
#if HEU_PROFILER_ON
Debug.LogFormat("GENERATE GEO CACHE TIME:: {0}", (Time.realtimeSinceStartup - generateGeoCacheStartTime));
#endif
return geoCache;
}