40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
import Common;
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import LightEnv;
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import MaterialParameter;
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import MATERIAL_FILE_NAME;
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struct LightCullingData
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{
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RWStructuredBuffer<uint> lightIndexList;
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RWTexture2D<uint2> lightGrid;
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};
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layout(set=5)
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ParameterBlock<LightCullingData> pLightCullingData;
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[shader("pixel")]
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float4 fragmentMain(in FragmentParameter params) : SV_Target
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{
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LightingParameter lightingParams = params.getLightingParameter();
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MaterialParameter materialParams = params.getMaterialParameter();
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let brdf = pMaterial.prepare(materialParams);
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uint2 tileIndex = uint2(floor(params.position_CS.xy / BLOCK_SIZE));
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uint startOffset = pLightCullingData.lightGrid[tileIndex].x;
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uint lightCount = pLightCullingData.lightGrid[tileIndex].y;
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float3 result = float3(0, 0, 0);
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for(int i = 0; i < pLightEnv.numDirectionalLights; ++i)
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{
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result += pLightEnv.directionalLights[i].illuminate(lightingParams, brdf);
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}
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for(uint i = 0; i < lightCount; ++i)
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{
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uint lightIndex = pLightCullingData.lightIndexList[startOffset + i];
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result += pLightEnv.pointLights[lightIndex].illuminate(lightingParams, brdf);
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}
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result += brdf.evaluateAmbient();
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// gamma correction
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result = result / (result + float3(1.0));
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result = pow(result, float3(1.0/2.2));
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return float4(result, 1.0f);
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}
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