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Move deband to end of tonemapping.

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This avoids artifacts when using adjustments and color correction
This commit is contained in:
clayjohn 2022-09-23 11:43:27 -07:00
parent f74491fdee
commit fe69fedc1a
1 changed files with 6 additions and 6 deletions
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12
servers/rendering/renderer_rd/shaders/effects/tonemap.glsl
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@ -462,12 +462,6 @@ void main() {
}
#endif
if (params.use_debanding) {
// For best results, debanding should be done before tonemapping.
// Otherwise, we're adding noise to an already-quantized image.
color.rgb += screen_space_dither(gl_FragCoord.xy);
}
color.rgb = apply_tonemapping(color.rgb, params.white);
color.rgb = linear_to_srgb(color.rgb); // regular linear -> SRGB conversion
@ -498,5 +492,11 @@ void main() {
color.rgb = apply_color_correction(color.rgb);
}
if (params.use_debanding) {
// Debanding should be done at the end of tonemapping, but before writing to the LDR buffer.
// Otherwise, we're adding noise to an already-quantized image.
color.rgb += screen_space_dither(gl_FragCoord.xy);
}
frag_color = color;
}