private int InitScene(out List <Node> tree, out List <Triangle> datas, out List <PathTracerMaterial> materials)
{
Bounds bounds;
var triangles = GetTrianglesInScene(out bounds);
tree = null;
datas = null;
materials = new List <PathTracerMaterial>();
List <Triangle> tris = new List <Triangle>();
foreach (var t in triangles)
{
for (int i = 0; i < t.Value.Count; i++)
{
Triangle triangle = t.Value[i];
triangle.matid = materials.Count;
tris.Add(triangle);
}
PathTracerMaterial mat = t.Key.GetMaterial();
materials.Add(mat);
}
return(LBVH.BuildBVH(tris, bounds, ref tree, ref datas));
}
private int FlattenTree(BVHNode node, ref int offset)
{
LBVH linearNode = new LBVH();
linearNode.min = node.boundingBox.min;
linearNode.max = node.boundingBox.max;
int myOffset = offset++;
if (node.children == null)
{
int primitives = node.meshCount << 16;
// int n = (int) (primitives >> 16);
linearNode.primAndAxis = primitives;
linearNode.offset = node.meshIndexStart;
// Debug.Log(linearNode.offset);
flatTree[myOffset] = linearNode;
}
else
{
linearNode.primAndAxis = node.splitAxis;
//linearNode.primAndAxis |= (int) (linearNode.primAndAxis ^ 4294901760);
FlattenTree(node.children[0], ref offset);
linearNode.offset = FlattenTree(node.children[1], ref offset);
flatTree[myOffset] = linearNode;
}
return(myOffset);
}
private void OnGUI()
{
if (GUI.Button(new Rect(100, 100, 200, 150), "span Morton Code"))
{
LBVH bVH = new LBVH();
bVH.CreateAABB(3, 3, 3);
}
}
private int InitScene(out List <Node> tree, out List <Triangle> datas)
{
Bounds bounds;
var triangles = Utils.GetTrianglesInScene(true, out bounds);
tree = null;
datas = null;
//return LKDTree.BuildKDTree(triangles, 0, 7, ref tree, ref datas);
return(LBVH.BuildBVH(triangles, bounds, ref tree, ref datas));
}
