Commit: 85e9ddd515c783e0b98cb824e0e381759c1f96da
Author: Antony Riakiotakis
Date: Mon Jan 5 14:11:37 2015 +0100
Branches: viewport_experiments
https://developer.blender.org/rB85e9ddd515c783e0b98cb824e0e381759c1f96da
Fix SSAO artifacts at zero distance by using a small constant bias in
length comparison.
===================================================================
M source/blender/gpu/shaders/gpu_shader_fx_ssao_frag.glsl
===================================================================
diff --git a/source/blender/gpu/shaders/gpu_shader_fx_ssao_frag.glsl
b/source/blender/gpu/shaders/gpu_shader_fx_ssao_frag.glsl
index c213007..ae1d3af 100644
--- a/source/blender/gpu/shaders/gpu_shader_fx_ssao_frag.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_fx_ssao_frag.glsl
@@ -63,8 +63,8 @@ float calculate_ssao_factor(float depth)
float f = dot(dir, normal);
/* use minor bias here to avoid self shadowing */
- if (f > 0.05 * len)
- factor += f / len * 1.0/(1.0 + len * len *
ssao_params.z);
+ if (f > 0.05 * len + 0.0001)
+ factor += f * 1.0/(len * (1.0 + len * len *
ssao_params.z));
}
}
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