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tonemap.glsl: Ensure color parameter of tonemap_reinhard() is positive

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Color values can become negative in the case of negative lights which
leads to undesired behaviour.
This commit is contained in:
Yetizone
2020-10-20 00:08:44 +03:00
parent 2393fb43c3
commit ffc4151f29
1 changed files with 4 additions and 0 deletions
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4
servers/rendering/rasterizer_rd/shaders/tonemap.glsl
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@@ -157,6 +157,10 @@ vec3 tonemap_aces(vec3 color, float white) {
} }
vec3 tonemap_reinhard(vec3 color, float white) { vec3 tonemap_reinhard(vec3 color, float white) {
// Ensure color values are positive.
// They can be negative in the case of negative lights, which leads to undesired behavior.
color = max(vec3(0.0), color);
return (white * color + color) / (color * white + white); return (white * color + color) / (color * white + white);
} }