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Cycles: Fix wrong check for object is behind camera after recent fixes

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This commit is contained in:
Sergey Sharybin
2016-07-29 16:37:02 +02:00
parent cdc7a24d7b
commit 1d154fe271
1 changed files with 9 additions and 2 deletions
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11
intern/cycles/blender/blender_object.cpp
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@@ -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);
}