[Bf-blender-cvs] [5c0d68d] blender-v2.76-release: Cycles: Fix missing z-coordinate check in volume sampling

[Sergey Sharybin]

Commit: 5c0d68d6879644d6c305bdc48e32d6340e3723a5
Author: Sergey Sharybin
Date:   Mon Oct 5 12:40:50 2015 +0500
Branches: blender-v2.76-release
https://developer.blender.org/rB5c0d68d6879644d6c305bdc48e32d6340e3723a5

Cycles: Fix missing z-coordinate check in volume sampling

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

M	intern/cycles/kernel/kernel_compat_cpu.h

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

diff --git a/intern/cycles/kernel/kernel_compat_cpu.h b/intern/cycles/kernel/kernel_compat_cpu.h
index ed145b4..7908293 100644
--- a/intern/cycles/kernel/kernel_compat_cpu.h
+++ b/intern/cycles/kernel/kernel_compat_cpu.h
@@ -279,7 +279,9 @@ template<typename T> struct texture_image  {
 					iz = wrap_periodic(iz, depth);
 					break;
 				case EXTENSION_CLIP:
-					if (x < 0.0f || y < 0.0f || x > 1.0f || y > 1.0f) {
+					if (x < 0.0f || y < 0.0f || z < 0.0f ||
+					    x > 1.0f || y > 1.0f || z > 1.0f)
+					{
 						return make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 					}
 					/* Fall through. */
@@ -308,7 +310,9 @@ template<typename T> struct texture_image  {
 					niz = wrap_periodic(iz+1, depth);
 					break;
 				case EXTENSION_CLIP:
-					if (x < 0.0f || y < 0.0f || x > 1.0f || y > 1.0f) {
+					if (x < 0.0f || y < 0.0f || z < 0.0f ||
+					    x > 1.0f || y > 1.0f || z > 1.0f)
+					{
 						return make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 					}
 					/* Fall through. */
@@ -363,7 +367,9 @@ template<typename T> struct texture_image  {
 					nniz = wrap_periodic(iz+2, depth);
 					break;
 				case EXTENSION_CLIP:
-					if (x < 0.0f || y < 0.0f || x > 1.0f || y > 1.0f) {
+					if (x < 0.0f || y < 0.0f || z < 0.0f ||
+					    x > 1.0f || y > 1.0f || z > 1.0f)
+					{
 						return make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 					}
 					/* Fall through. */