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c/render: Fix handling of alpha channel in compute layer renderer

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Fernando Innella 2023-02-16 21:40:51 +00:00 committed by Fernando Velazquez Innella
parent e9e0cf9f2c
commit 80a8048c39
1 changed files with 3 additions and 2 deletions
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5
src/xrt/compositor/shaders/layer.comp
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@ -249,9 +249,10 @@ vec4 do_layers(vec2 view_uv, uint view_index)
// Unpremultipled blend factor of src.a. // Unpremultipled blend factor of src.a.
accum.rgb = mix(accum.rgb, rgba.rgb, rgba.a); accum.rgb = mix(accum.rgb, rgba.rgb, rgba.a);
} else { } else {
// Premultiplied bland foctor of 1. // Premultiplied blend factor of 1.
accum.rgb = (accum.rgb * (1 - rgba.a)) + rgba.rgb; accum.rgb = (accum.rgb * (1 - rgba.a)) + rgba.rgb;
} }
accum.a = rgba.a + accum.a * (1.0 - rgba.a);
} }
} }
return accum; return accum;
@ -276,7 +277,7 @@ void main()
if (do_color_correction) { if (do_color_correction) {
// Do colour correction here since there are no automatic conversion in hardware available. // Do colour correction here since there are no automatic conversion in hardware available.
colour = vec4(from_linear_to_srgb(colour.rgb), 1); colour.rgb = from_linear_to_srgb(colour.rgb);
} }
imageStore(target, ivec2(offset.x + ix, offset.y + iy), colour); imageStore(target, ivec2(offset.x + ix, offset.y + iy), colour);