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Fix T54278: volume artifacts with small density and color after recent changes.

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Brecht Van Lommel 2018-03-10 05:03:03 +01:00
parent 50dde3d01a
commit 07d0a87b5c
1 changed files with 1 additions and 1 deletions
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2
intern/cycles/kernel/geom/geom_volume.h
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@ -68,7 +68,7 @@ ccl_device float3 volume_attribute_float3(KernelGlobals *kg, const ShaderData *s
if(dx) *dx = make_float3(0.0f, 0.0f, 0.0f);
if(dy) *dy = make_float3(0.0f, 0.0f, 0.0f);
if(r.w != 0.0f && r.w != 1.0f) {
if(r.w > 1e-8f && r.w != 1.0f) {
/* For RGBA colors, unpremultiply after interpolation. */
return float4_to_float3(r) / r.w;
}