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rendervulkan: Don't calculate a garbage alpha value.

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This commit is contained in:
Georg Lehmann 2022-02-12 17:24:07 +01:00 committed by Joshie
parent 35b381ce51
commit 2d537df252
2 changed files with 6 additions and 7 deletions
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9
src/shaders/cs_composite_blit.comp
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@ -35,10 +35,10 @@ void main() {
return;
vec2 uv = vec2(coord);
vec4 outputValue = vec4(0.0f);
vec3 outputValue = vec3(0.0f);
if (c_layerCount > 0)
outputValue = sampleLayer(0, uv) * u_opacity[0];
outputValue = sampleLayer(0, uv).rgb * u_opacity[0];
for (int i = 1; i < c_layerCount; i++) {
vec4 layerColor = sampleLayer(i, uv);
@ -49,10 +49,11 @@ void main() {
// For the other side of things, we need to multiply by (1.0f - (layerColor.a * opacity))
float opacity = u_opacity[i];
float layerAlpha = opacity * layerColor.a;
outputValue = layerColor * opacity + outputValue * (1.0f - layerAlpha);
outputValue = layerColor.rgb * opacity + outputValue * (1.0f - layerAlpha);
}
imageStore(dst, ivec2(coord), linearToSrgb(outputValue));
outputValue = linearToSrgb(outputValue);
imageStore(dst, ivec2(coord), vec4(outputValue, 0));
// Indicator to quickly tell if we're in the compositing path or not.
if (c_compositing_debug)

4
src/shaders/cs_composite_rcas.comp
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@ -71,9 +71,7 @@ void rcasComposite(uvec2 pos)
outputValue = linearToSrgb(outputValue);
}
float undef;
imageStore(dst, ivec2(pos), vec4(outputValue, undef));
imageStore(dst, ivec2(pos), vec4(outputValue, 0));
if (c_compositing_debug)
compositing_debug(pos);