SPIRV-Cross/reference/shaders-hlsl/frag/texel-fetch-offset.frag
Hans-Kristian Arntzen fdbc80d131 HLSL: Fix FragCoord.w.
Need to invert it, SM 4.0+ uses W, not 1/W (like Vulkan/GL).
2020-08-20 16:22:48 +02:00

32 lines
722 B
GLSL

Texture2D<float4> uTexture : register(t0);
SamplerState _uTexture_sampler : register(s0);
static float4 gl_FragCoord;
static float4 FragColor;
struct SPIRV_Cross_Input
{
float4 gl_FragCoord : SV_Position;
};
struct SPIRV_Cross_Output
{
float4 FragColor : SV_Target0;
};
void frag_main()
{
FragColor = uTexture.Load(int3(int2(gl_FragCoord.xy), 0), int2(1, 1));
FragColor += uTexture.Load(int3(int2(gl_FragCoord.xy), 0), int2(-1, 1));
}
SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{
gl_FragCoord = stage_input.gl_FragCoord;
gl_FragCoord.w = 1.0 / gl_FragCoord.w;
frag_main();
SPIRV_Cross_Output stage_output;
stage_output.FragColor = FragColor;
return stage_output;
}