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Small roughness tweek under area lights

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This commit is contained in:
dragonCASTjosh 2017-06-12 00:07:02 +01:00
parent e741c50b11
commit 417ad2966a
1 changed files with 4 additions and 2 deletions
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6
bin/CoreData/Shaders/HLSL/PBR.hlsl
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@ -13,6 +13,8 @@
float specEnergy = 1.0f;
float radius = cLightRad / 100;
float rough2 = max(roughness, 0.08);
rough2 *= rough2;
float radius2 = radius * radius;
float distToLightSqrd = dot(lightVec,lightVec);
@ -30,7 +32,7 @@
float sphereAngle = saturate(radius * invDistToLight);
specEnergy = (roughness * roughness) / saturate((roughness * roughness) + 0.5f * sphereAngle);
specEnergy = rough2 / (rough2 + 0.5f * sphereAngle);
specEnergy *= specEnergy;
float3 R = 2 * dot(toCamera, normal) * normal - toCamera;
@ -96,7 +98,7 @@
float ndv = saturate(dot(normal, toCamera));
float distL = length(closestPoint);
float alpha = roughness * roughness;
float alpha = max(roughness, 0.08) * max(roughness, 0.08);
float alphaPrime = saturate(radius / (distL * 2.0) + alpha);
const float3 diffuseFactor = Diffuse(diffColor, roughness, ndv, ndl, hdv) * ndl;