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Saturate RGB values in non-PQ shaders to improve SDR streams of HDR displays

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This avoids color shift caused by RGB values > 1.0f.
This commit is contained in:
Cameron Gutman
2023-04-04 22:22:48 -05:00
parent f04d5e12de
commit 65268212ee
2 changed files with 3 additions and 3 deletions
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src_assets/windows/assets/shaders/directx/ConvertUVPS.hlsl
+2 -2
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@@ -19,8 +19,8 @@ cbuffer ColorMatrix : register(b0) {
//-------------------------------------------------------------------------------------- //--------------------------------------------------------------------------------------
float2 main_ps(FragTexWide input) : SV_Target float2 main_ps(FragTexWide input) : SV_Target
{ {
float3 rgb_left = image.Sample(def_sampler, input.uuv.xz).rgb; float3 rgb_left = saturate(image.Sample(def_sampler, input.uuv.xz)).rgb;
float3 rgb_right = image.Sample(def_sampler, input.uuv.yz).rgb; float3 rgb_right = saturate(image.Sample(def_sampler, input.uuv.yz)).rgb;
float3 rgb = (rgb_left + rgb_right) * 0.5; float3 rgb = (rgb_left + rgb_right) * 0.5;
float u = dot(color_vec_u.xyz, rgb) + color_vec_u.w; float u = dot(color_vec_u.xyz, rgb) + color_vec_u.w;
src_assets/windows/assets/shaders/directx/ConvertYPS.hlsl
+1 -1
View File
@@ -18,7 +18,7 @@ struct PS_INPUT
float main_ps(PS_INPUT frag_in) : SV_Target float main_ps(PS_INPUT frag_in) : SV_Target
{ {
float3 rgb = image.Sample(def_sampler, frag_in.tex, 0).rgb; float3 rgb = saturate(image.Sample(def_sampler, frag_in.tex, 0)).rgb;
float y = dot(color_vec_y.xyz, rgb) + color_vec_y.w; float y = dot(color_vec_y.xyz, rgb) + color_vec_y.w;
return y * range_y.x + range_y.y; return y * range_y.x + range_y.y;