34 lines
921 B
HLSL
34 lines
921 B
HLSL
#include "common.hlsli"
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uniform float4 screen_res;
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float4 main(float2 tc : TEXCOORD0) : COLOR
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{
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#if SSAO_OPT_DATA == 2
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// FIXME: Should add a float-texel offset to I.tc0 here
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// This would fix horizontal line issue
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float4 P0 = tex2D(s_position, tc + 0.5f * screen_res.zw); // position.(mtl or sun)
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float4 P1 = tex2D(s_position, tc - 0.5f * screen_res.zw); // position.(mtl or sun)
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float4 P2 = tex2D(s_position, tc + 0.5f * float2(screen_res.z, -screen_res.w)); // position.(mtl or sun)
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float4 P3 = tex2D(s_position, tc + 0.5f * float2(-screen_res.z, screen_res.w)); // position.(mtl or sun)
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float4 P = P0;
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if (P1.z < P.z)
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{
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P = P1;
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}
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if (P2.z < P.z)
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{
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P = P2;
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}
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if (P3.z < P.z)
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{
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P = P3;
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}
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return float4(P.zzzz);
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#else
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return tex2D(s_position, tc - 0.5f * screen_res.zw).zzzz;
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#endif
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}
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