23 lines
447 B
GLSL
23 lines
447 B
GLSL
|
#version 330 core
|
||
|
|
|
||
|
|
in vec2 texCoord;
|
||
|
|
|
||
|
|
out float occlusion;
|
||
|
|
|
||
|
|
uniform sampler2D ssao;
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
vec2 texelSize = 1.0 / vec2(textureSize(ssao, 0));
|
||
|
|
vec2 offset;
|
||
|
|
occlusion = 0.0;
|
||
|
|
for (int x = -2; x < 2; x++)
|
||
|
|
{
|
||
|
|
for (int y = -2; y < 2; y++)
|
||
|
|
{
|
||
|
|
offset = vec2(x, y) * texelSize;
|
||
|
|
occlusion += texture(ssao, texCoord + offset).r;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
occlusion = occlusion / (4.0 * 4.0);
|
||
|
|
}
|