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;
}