28 lines
590 B
GLSL
28 lines
590 B
GLSL
uniform sampler2D tex;
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uniform vec2 pixel;
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// Gaussian separated blur with radius 3.
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#if __VERSION__ >= 130
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in vec2 uv;
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out vec4 FragColor;
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#else
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varying vec2 uv;
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#define FragColor gl_FragColor
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#endif
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void main()
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{
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vec4 sum = vec4(0.0);
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float X = uv.x;
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float Y = uv.y;
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sum += texture(tex, vec2(X - 3.0 * pixel.x, Y)) * 0.03125;
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sum += texture(tex, vec2(X - 1.3333 * pixel.x, Y)) * 0.328125;
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sum += texture(tex, vec2(X, Y)) * 0.273438;
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sum += texture(tex, vec2(X + 1.3333 * pixel.x, Y)) * 0.328125;
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sum += texture(tex, vec2(X + 3.0 * pixel.x, Y)) * 0.03125;
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FragColor = sum;
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}
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