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Fix T47697: Smoke simulation doesn't work in viewport

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Seems to be a division by zero error.

Should be safe for an upcoming 'a' release.
This commit is contained in:
Sergey Sharybin
2016-03-27 13:19:09 +02:00
parent 9c2704c169
commit 7bce3dd3ad
1 changed files with 7 additions and 1 deletions
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8
source/blender/gpu/shaders/gpu_shader_smoke_frag.glsl
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@@ -17,7 +17,13 @@ void main()
{ {
/* compute color and density from volume texture */ /* compute color and density from volume texture */
vec4 soot = texture3D(soot_texture, coords); vec4 soot = texture3D(soot_texture, coords);
vec3 soot_color = active_color * soot.rgb / soot.a; vec3 soot_color;
if (soot.a != 0) {
soot_color = active_color * soot.rgb / soot.a;
}
else {
soot_color = vec3(0, 0, 0);
}
float soot_density = density_scale * soot.a; float soot_density = density_scale * soot.a;
/* compute transmittance and alpha */ /* compute transmittance and alpha */