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Fix radial lights

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This commit is contained in:
Wojciech Figat
2021-12-13 17:30:51 +01:00
parent 5f4bfa36d8
commit 25c7909e30
4 changed files with 15 additions and 14 deletions
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7
Source/Shaders/VolumetricFog.shader
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@@ -210,8 +210,6 @@ float4 PS_InjectLight(Quad_GS2PS input) : SV_Target0
uint samplesCount = 1;
#endif
float3 L = 0;
float3 toLight = 0;
float NoL = 0;
float distanceAttenuation = 1;
float lightRadiusMask = 1;
@@ -227,9 +225,12 @@ float4 PS_InjectLight(Quad_GS2PS input) : SV_Target0
float3 cameraVector = normalize(positionWS - GBuffer.ViewPos);
float cellRadius = length(positionWS - GetCellPositionWS(gridCoordinate + uint3(1, 1, 1), cellOffset));
float distanceBias = max(cellRadius * InverseSquaredLightDistanceBiasScale, 1);
float3 toLight = LocalLight.Position - positionWS;
float distanceSqr = dot(toLight, toLight);
float3 L = toLight * rsqrt(distanceSqr);
// Calculate the light attenuation
GetRadialLightAttenuation(LocalLight, isSpotLight, positionWS, float3(0, 0, 1), distanceBias * distanceBias, L, NoL, distanceAttenuation, lightRadiusMask, spotAttenuation);
GetRadialLightAttenuation(LocalLight, isSpotLight, float3(0, 0, 1), distanceSqr, distanceBias * distanceBias, toLight, L, NoL, distanceAttenuation, lightRadiusMask, spotAttenuation);
float combinedAttenuation = distanceAttenuation * lightRadiusMask * spotAttenuation;
// Peek the shadow