// Callback from convex hull creater with a newly created hull.
// Just add it to our collection of hulls for this shape.
private void HullReturn(ConvexResult result)
{
m_hulls.Add(result);
return;
}
public HacdConvexHull[] DecomposeToConvexHulls(ulong meshHash, bool useCache, List <float3> convVertices, List <int> convIndices)
{
if (convIndices.Count % 3 != 0)
{
throw new InvalidOperationException("Number of indicies must be divisble by 3");
}
if (IsCacheCandidate(useCache, convVertices.Count))
{
//try cache
try
{
HacdConvexHull[] cachedHulls;
if (MeshingStage.HullCache.TryGetHulls(meshHash, out cachedHulls))
{
return(cachedHulls);
}
}
catch (Exception e)
{
m_log.ErrorFormat("[InWorldz.PhysX.RatcliffACD] Failure retrieving HACD hulls from cache: {0}: {1}", e, e.Message);
}
}
ConvexBuilder builder = new ConvexBuilder(HullReturn);
m_hulls = new List <ConvexResult>();
DecompDesc dcomp = new DecompDesc();
dcomp.mIndices = convIndices;
dcomp.mVertices = convVertices;
builder.process(dcomp);
var retHulls = new HacdConvexHull[m_hulls.Count];
for (int i = 0; i < m_hulls.Count; i++)
{
ConvexResult hull = m_hulls[i];
float[] rawVerts = null;
if (IsCacheCandidate(useCache, convVertices.Count))
{
rawVerts = new float[hull.HullVertices.Count * 3];
}
PhysX.Math.Vector3[] hullVerts = new PhysX.Math.Vector3[hull.HullVertices.Count];
for (int j = 0; j < hull.HullVertices.Count; j++)
{
hullVerts[j] = new PhysX.Math.Vector3(hull.HullVertices[j].x, hull.HullVertices[j].y, hull.HullVertices[j].z);
if (rawVerts != null)
{
rawVerts[j * 3 + 0] = hull.HullVertices[j].x;
rawVerts[j * 3 + 1] = hull.HullVertices[j].y;
rawVerts[j * 3 + 2] = hull.HullVertices[j].z;
}
}
retHulls[i] = new HacdConvexHull {
Indicies = hull.HullIndices.ToArray(),
Vertices = hullVerts,
_rawVerts = rawVerts,
};
}
//store in cache for later
if (IsCacheCandidate(useCache, convVertices.Count))
{
try
{
MeshingStage.HullCache.CacheHulls(meshHash, retHulls);
}
catch (Exception e)
{
m_log.ErrorFormat("[InWorldz.PhysX.RatcliffACD] Failure storing HACD results in cache: {0}: {1}", e, e.Message);
}
}
return(retHulls);
}
