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libobs: Add high-precision sRGB support

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jpark37 2022-03-30 22:39:53 -07:00 • committed by Jim
commit 06111d5b10
10 changed files with 329 additions and 101 deletions
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19
libobs/data/default.effect
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@ -45,6 +45,16 @@ float4 PSDrawNonlinearAlpha(VertInOut vert_in) : TARGET
return rgba;
}
float4 PSDrawNonlinearAlphaMultiply(VertInOut vert_in) : TARGET
{
float4 rgba = image.Sample(def_sampler, vert_in.uv);
rgba.rgb = srgb_linear_to_nonlinear(rgba.rgb);
rgba.rgb *= rgba.a;
rgba.rgb = srgb_nonlinear_to_linear(rgba.rgb);
rgba.rgb *= multiplier;
return rgba;
}
float4 PSDrawSrgbDecompress(VertInOut vert_in) : TARGET
{
float4 rgba = image.Sample(def_sampler, vert_in.uv);
@ -105,6 +115,15 @@ technique DrawNonlinearAlpha
}
}
technique DrawNonlinearAlphaMultiply
{
pass
{
vertex_shader = VSDefault(vert_in);
pixel_shader = PSDrawNonlinearAlphaMultiply(vert_in);
}
}
technique DrawSrgbDecompress
{
pass