From 8c4e3d0f6513720eec948978314fff0ea1b66f00 Mon Sep 17 00:00:00 2001
From: Alexander Gauggel <agauggel@uni-koblenz.de>
Date: Mon, 21 Jun 2021 18:08:52 +0200
Subject: [PATCH] [#82] Fix diffuse trace weights
---
projects/voxelization/resources/shaders/voxel.inc | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/projects/voxelization/resources/shaders/voxel.inc b/projects/voxelization/resources/shaders/voxel.inc
index 68c7d159..f0b1d423 100644
--- a/projects/voxelization/resources/shaders/voxel.inc
+++ b/projects/voxelization/resources/shaders/voxel.inc
@@ -124,7 +124,7 @@ vec3 voxelConeTrace(vec3 direction, vec3 startPosition, float coneAngleRadian, t
float maxMip = float(log2(voxelResolution));
float maxStableMip = 4; // must be the same as in Voxelization::voxelizeMeshes
maxMip = min(maxMip, maxStableMip);
- float d = 2 * sqrt(3 * pow(voxelSize, 2));
+ float d = 0.75 * sqrt(3 * pow(voxelSize, 2));
vec3 color = vec3(0);
float a = 0;
@@ -173,9 +173,9 @@ vec3 diffuseVoxelTraceHemisphere(mat3 toSurface, vec3 position, texture3D voxelT
float theta = 2 * pi / i;
float phi = pi / 3; // 60 degrees
vec3 sampleDirection = toSurface * vec3(cos(theta) * sin(phi), sin(theta) * sin(phi), cos(phi));
- float weight = pi * (3.f / 4.f) / i;
+ float weight = pi * (3.f / 4.f) / 6;
vec3 trace = voxelConeTrace(sampleDirection, position, coneAngle, voxelTexture, voxelSampler, voxelInfo);
- diffuseTrace += trace;
+ diffuseTrace += weight * trace;
}
return diffuseTrace;
}
\ No newline at end of file
--
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