#pragma kernel KMain

#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch

#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
#include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"

TEXTURE2D_X(_InputTexture);
RW_TEXTURE2D_X(float, _OutputTexture);

[numthreads(8, 8, 1)]
void KMain(uint3 dispatchThreadId : SV_DispatchThreadID)
{
    UNITY_XR_ASSIGN_VIEW_INDEX(dispatchThreadId.z);
    float alpha = LOAD_TEXTURE2D_X(_InputTexture, dispatchThreadId.xy).w;
    _OutputTexture[COORD_TEXTURE2D_X(dispatchThreadId.xy)] = alpha;
}