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-rw-r--r--servers/rendering/rasterizer_rd/shaders/tonemap.glsl4
1 files changed, 4 insertions, 0 deletions
diff --git a/servers/rendering/rasterizer_rd/shaders/tonemap.glsl b/servers/rendering/rasterizer_rd/shaders/tonemap.glsl
index a464048ebd..e7b46a0706 100644
--- a/servers/rendering/rasterizer_rd/shaders/tonemap.glsl
+++ b/servers/rendering/rasterizer_rd/shaders/tonemap.glsl
@@ -157,6 +157,10 @@ vec3 tonemap_aces(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);
}