protected override void OnShutdownLibrary()
{
if (shapesDictionary.Count != 0)
{
Log.Warning("PhysXPhysicsWorld: OnShutdownLibrary: shapesDictionary.Count != 0.");
}
PhysXNativeWorld.Destroy();
if (hacdInstance != null)
{
try
{
HACDWrapper.Shutdown(hacdInstance);
}
catch { }
hacdInstance = null;
}
instance = null;
}
protected override unsafe ConvexHullDecompositionDataItem[] OnConvexHullDecomposite(
Vec3[] vertices, int[] indices, int maxTrianglesInDecimatedMesh, int maxVerticesPerConvexHull)
{
if (hacdInstance == null)
{
hacdInstance = HACDWrapper.Init();
}
double[] points = new double[vertices.Length * 3];
for (int n = 0; n < vertices.Length; n++)
{
points[n * 3 + 0] = vertices[n].X;
points[n * 3 + 1] = vertices[n].Y;
points[n * 3 + 2] = vertices[n].Z;
}
bool result;
fixed(double *pPoints = points)
{
fixed(int *pIndices = indices)
{
result = HACDWrapper.Compute(hacdInstance, pPoints, vertices.Length, pIndices,
indices.Length / 3, maxTrianglesInDecimatedMesh, maxVerticesPerConvexHull);
}
}
if (!result)
{
return(null);
}
int clusterCount = HACDWrapper.GetClusterCount(hacdInstance);
ConvexHullDecompositionDataItem[] items = new ConvexHullDecompositionDataItem[clusterCount];
for (int nCluster = 0; nCluster < clusterCount; nCluster++)
{
int clusterPointCount;
int clusterTriangleCount;
HACDWrapper.GetBufferSize(hacdInstance, nCluster, out clusterPointCount,
out clusterTriangleCount);
double[] clusterPoints = new double[clusterPointCount * 3];
int[] clusterIndices = new int[clusterTriangleCount * 3];
fixed(double *pPoints = clusterPoints)
{
fixed(int *pIndices = clusterIndices)
{
HACDWrapper.GetBuffer(hacdInstance, nCluster, pPoints, pIndices);
}
}
Vec3[] clusterVertices = new Vec3[clusterPointCount];
for (int n = 0; n < clusterPointCount; n++)
{
clusterVertices[n] = new Vec3(
(float)clusterPoints[n * 3 + 0],
(float)clusterPoints[n * 3 + 1],
(float)clusterPoints[n * 3 + 2]);
}
items[nCluster] = new ConvexHullDecompositionDataItem(clusterVertices, clusterIndices);
}
HACDWrapper.ClearComputed(hacdInstance);
return(items);
}
