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7x7 PCF

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John 7 年前
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共有 1 个文件被更改,包括 45 次插入22 次删除
  1. 67
      ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Shadows.hlsl

67
ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Shadows.hlsl


half attenuation;
#ifdef _SHADOWS_SOFT
#ifdef SHADER_API_MOBILE
// 4-tap hardware comparison
half4 attenuation4;
attenuation4.x = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset0.xyz);
attenuation4.y = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset1.xyz);
attenuation4.z = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset2.xyz);
attenuation4.w = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset3.xyz);
attenuation = dot(attenuation4, 0.25);
#else
real fetchesWeights[9];
real2 fetchesUV[9];
SampleShadow_ComputeSamples_Tent_5x5(_ShadowmapSize, shadowCoord.xy, fetchesWeights, fetchesUV);
#ifdef SHADER_API_MOBILE
// 4-tap hardware comparison
half4 attenuation4;
attenuation4.x = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset0.xyz);
attenuation4.y = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset1.xyz);
attenuation4.z = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset2.xyz);
attenuation4.w = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz + _ShadowOffset3.xyz);
attenuation = dot(attenuation4, 0.25);
#else
#ifdef _SHADOWS_SCREEN
real fetchesWeights[16];
real2 fetchesUV[16];
SampleShadow_ComputeSamples_Tent_7x7(_ShadowmapSize, shadowCoord.xy, fetchesWeights, fetchesUV);
attenuation = fetchesWeights[0] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[0].xy, shadowCoord.z));
attenuation += fetchesWeights[1] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[1].xy, shadowCoord.z));
attenuation += fetchesWeights[2] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[2].xy, shadowCoord.z));
attenuation += fetchesWeights[3] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[3].xy, shadowCoord.z));
attenuation += fetchesWeights[4] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[4].xy, shadowCoord.z));
attenuation += fetchesWeights[5] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[5].xy, shadowCoord.z));
attenuation += fetchesWeights[6] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[6].xy, shadowCoord.z));
attenuation += fetchesWeights[7] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[7].xy, shadowCoord.z));
attenuation += fetchesWeights[8] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[8].xy, shadowCoord.z));
attenuation += fetchesWeights[9] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[9].xy, shadowCoord.z));
attenuation += fetchesWeights[10] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[10].xy, shadowCoord.z));
attenuation += fetchesWeights[11] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[11].xy, shadowCoord.z));
attenuation += fetchesWeights[12] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[12].xy, shadowCoord.z));
attenuation += fetchesWeights[13] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[13].xy, shadowCoord.z));
attenuation += fetchesWeights[14] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[14].xy, shadowCoord.z));
attenuation += fetchesWeights[15] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[15].xy, shadowCoord.z));
#else
real fetchesWeights[9];
real2 fetchesUV[9];
SampleShadow_ComputeSamples_Tent_5x5(_ShadowmapSize, shadowCoord.xy, fetchesWeights, fetchesUV);
attenuation = fetchesWeights[0] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[0].xy, shadowCoord.z));
attenuation += fetchesWeights[1] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[1].xy, shadowCoord.z));
attenuation += fetchesWeights[2] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[2].xy, shadowCoord.z));
attenuation += fetchesWeights[3] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[3].xy, shadowCoord.z));
attenuation += fetchesWeights[4] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[4].xy, shadowCoord.z));
attenuation += fetchesWeights[5] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[5].xy, shadowCoord.z));
attenuation += fetchesWeights[6] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[6].xy, shadowCoord.z));
attenuation += fetchesWeights[7] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[7].xy, shadowCoord.z));
attenuation += fetchesWeights[8] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[8].xy, shadowCoord.z));
#endif
attenuation = fetchesWeights[0] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[0].xy, shadowCoord.z));
attenuation += fetchesWeights[1] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[1].xy, shadowCoord.z));
attenuation += fetchesWeights[2] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[2].xy, shadowCoord.z));
attenuation += fetchesWeights[3] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[3].xy, shadowCoord.z));
attenuation += fetchesWeights[4] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[4].xy, shadowCoord.z));
attenuation += fetchesWeights[5] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[5].xy, shadowCoord.z));
attenuation += fetchesWeights[6] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[6].xy, shadowCoord.z));
attenuation += fetchesWeights[7] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[7].xy, shadowCoord.z));
attenuation += fetchesWeights[8] * SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, real3(fetchesUV[8].xy, shadowCoord.z));
#endif
#endif
#else
// 1-tap hardware comparison
attenuation = SAMPLE_TEXTURE2D_SHADOW(_ShadowMap, sampler_ShadowMap, shadowCoord.xyz);

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