From 07d0a87b5c20dfc4a404f2354325b91ff21653b2 Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Sat, 10 Mar 2018 05:03:03 +0100 Subject: Fix T54278: volume artifacts with small density and color after recent changes. --- intern/cycles/kernel/geom/geom_volume.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'intern/cycles/kernel') diff --git a/intern/cycles/kernel/geom/geom_volume.h b/intern/cycles/kernel/geom/geom_volume.h index 286d898992e..a4e47384b25 100644 --- a/intern/cycles/kernel/geom/geom_volume.h +++ b/intern/cycles/kernel/geom/geom_volume.h @@ -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; } -- cgit v1.2.3