public void Evaluate(int spreadMax)
{
FNodeBuffer.SliceCount = 1;
FTransformBuffer.SliceCount = 1;
FInvalidate = false;
if (FNodeBuffer[0] == null)
{
FNodeBuffer[0] = new DX11Resource <DX11DynamicStructuredBuffer <LBVH.Node> >();
}
if (FTransformBuffer[0] == null)
{
FTransformBuffer[0] = new DX11Resource <DX11DynamicStructuredBuffer <Matrix> >();
}
//FEntities.Sync();
if (FApply[0] || FFirst)
{
BVHBuilder builder = new BVHBuilder();
node_data = builder.Build(FEntities.ToList());
FNodeCount[0] = node_data.Length;
FLeafCount[0] = FEntities.SliceCount;
FLeafOffset[0] = FEntities.SliceCount > 0 ? FEntities.SliceCount - 1 : 0;
if (node_data != null)
{
transform_data = builder.GetTransformsForLastBuild();
FBoxes.SliceCount = node_data.Length;
for (int i = 0; i < node_data.Length; ++i)
{
LBVH.Node node = node_data[i];
Vector3 min = node_data[i].min;
Vector3 max = node_data[i].max;
FBoxes[i] = VMath.Transform(
(new Vector3D(min.X + max.X, min.Y + max.Y, min.Z + max.Z)) * 0.5,
new Vector3D(max.X - min.X, max.Y - min.Y, max.Z - min.Z),
Vector3D.Zero);
}
}
else
{
FBoxes.SliceCount = 0;
}
FInvalidate = true;
FFirst = false;
FNodeBuffer.Stream.IsChanged = true;
FTransformBuffer.Stream.IsChanged = true;
}
}
