Files
ircolib/test/testgpurender_effects_grayscale.frag.hlsl
T
iris 411251c624 Squashed 'external/SDL/' content from commit 716c767b7
git-subtree-dir: external/SDL
git-subtree-split: 716c767b7e7099fb0e2fda9db59227a7e1d1d8a4
2026-05-13 17:47:57 +02:00

20 lines
502 B
HLSL

Texture2D u_texture : register(t0, space2);
SamplerState u_sampler : register(s0, space2);
struct PSInput {
float4 v_color : COLOR0;
float2 v_uv : TEXCOORD0;
};
struct PSOutput {
float4 o_color : SV_Target;
};
PSOutput main(PSInput input) {
PSOutput output;
float4 color = u_texture.Sample(u_sampler, input.v_uv) * input.v_color;
float gray = color.r * 0.2126 + color.g * 0.7152 + color.r * 0.722;
output.o_color = float4(gray, gray, gray, color.a);
return output;
}