[Bf-blender-cvs] [9945169] master: Cycles: Implement proper visibility check in QBVH volume all intersection

[Sergey Sharybin]

Commit: 99451698d3469f613934ffe2ce33da90dc820e22
Author: Sergey Sharybin
Date:   Thu Aug 25 11:09:06 2016 +0200
Branches: master
https://developer.blender.org/rB99451698d3469f613934ffe2ce33da90dc820e22

Cycles: Implement proper visibility check in QBVH volume all intersection

===================================================================

M	intern/cycles/kernel/bvh/qbvh_volume_all.h

===================================================================

diff --git a/intern/cycles/kernel/bvh/qbvh_volume_all.h b/intern/cycles/kernel/bvh/qbvh_volume_all.h
index 4d3028b..ab4b700 100644
--- a/intern/cycles/kernel/bvh/qbvh_volume_all.h
+++ b/intern/cycles/kernel/bvh/qbvh_volume_all.h
@@ -240,6 +240,14 @@ ccl_device uint BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 			/* If node is leaf, fetch triangle list. */
 			if(node_addr < 0) {
 				float4 leaf = kernel_tex_fetch(__bvh_leaf_nodes, (-node_addr-1));
+
+				if((__float_as_uint(leaf.z) & visibility) == 0) {
+					/* Pop. */
+					node_addr = traversal_stack[stack_ptr].addr;
+					--stack_ptr;
+					continue;
+				}
+
 				int prim_addr = __float_as_int(leaf.x);
 
 #if BVH_FEATURE(BVH_INSTANCING)