Commit: 1d154fe27173ba849d7b3211ae91b47bf248ada0
Author: Sergey Sharybin
Date: Fri Jul 29 16:37:02 2016 +0200
Branches: master
https://developer.blender.org/rB1d154fe27173ba849d7b3211ae91b47bf248ada0
Cycles: Fix wrong check for object is behind camera after recent fixes
===================================================================
M intern/cycles/blender/blender_object.cpp
===================================================================
diff --git a/intern/cycles/blender/blender_object.cpp
b/intern/cycles/blender/blender_object.cpp
index 22a0b39..da9e014 100644
--- a/intern/cycles/blender/blender_object.cpp
+++ b/intern/cycles/blender/blender_object.cpp
@@ -253,10 +253,17 @@ static bool object_boundbox_clip(Scene *scene,
boundbox[3 * i + 1],
boundbox[3 * i + 2]);
p = transform_point(&tfm, p);
- p = transform_perspective(&worldtondc, p);
- if(p.z >= -margin) {
+
+ float4 b = make_float4(p.x, p.y, p.z, 1.0f);
+ float4 c = make_float4(dot(worldtondc.x, b),
+ dot(worldtondc.y, b),
+ dot(worldtondc.z, b),
+ dot(worldtondc.w, b));
+ if(c.z >= -margin) {
all_behind = false;
}
+ c /= c.w;
+ p = float4_to_float3(c);
bb_min = min(bb_min, p);
bb_max = max(bb_max, p);
}
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