42 lines
1.1 KiB
HLSL
42 lines
1.1 KiB
HLSL
#include "common.hlsli"
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struct v2p
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{
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float2 tc0 : TEXCOORD0; // base
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float4 c : COLOR0; // diffuse
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#ifdef USE_SOFT_PARTICLES
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// Igor: for additional depth dest
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float4 tctexgen : TEXCOORD1;
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#endif // USE_SOFT_PARTICLES
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float fog : FOG;
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};
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// Must be less than view near
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#define DEPTH_EPSILON 0.1f
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// Pixel
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float4 main(v2p I) : COLOR
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{
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float4 result = I.c * tex2D(s_base, I.tc0);
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// Igor: additional depth test
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#ifdef USE_SOFT_PARTICLES
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float4 _P = tex2Dproj(s_position, I.tctexgen);
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float spaceDepth = _P.z - I.tctexgen.z - DEPTH_EPSILON;
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if (spaceDepth < -2.0f * DEPTH_EPSILON)
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{
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spaceDepth = 100000.0f; // Skybox doesn't draw into position buffer
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}
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// result.a *= saturate(spaceDepth*0.3h);
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result.a *= Contrast(saturate(spaceDepth * 1.3f), 2.0f);
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result.rgb *= Contrast(saturate(spaceDepth * 1.3f), 2.0f);
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// result = Contrast( saturate(spaceDepth*1.3h), 2);
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// result = saturate (spaceDepth*5.0);
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// result.a = 1;
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#endif // USE_SOFT_PARTICLES
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clip(result.a - (0.01f / 255.0f));
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result.w *= I.fog;
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return result;
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}
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