procedural-3d-engine/shaders/glsl/ssao/blur.frag
Vovan675 fc9753a8fc
Fix SSAO blur range (#1122)
* Fix ssao blur range

* Recompile ssao blur shaders

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Co-authored-by: Vladimir Kosachev <vovan675@unigine.com>
2024-06-21 07:56:26 +02:00

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548 B
GLSL

#version 450
layout (binding = 0) uniform sampler2D samplerSSAO;
layout (location = 0) in vec2 inUV;
layout (location = 0) out float outFragColor;
void main()
{
const int blurRange = 2;
int n = 0;
vec2 texelSize = 1.0 / vec2(textureSize(samplerSSAO, 0));
float result = 0.0;
for (int x = -blurRange; x <= blurRange; x++)
{
for (int y = -blurRange; y <= blurRange; y++)
{
vec2 offset = vec2(float(x), float(y)) * texelSize;
result += texture(samplerSSAO, inUV + offset).r;
n++;
}
}
outFragColor = result / (float(n));
}