48 lines
838 B
Text
48 lines
838 B
Text
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#version 120
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#define pixelSize // [1 2 4 8 16]
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//#define hBlur
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varying vec2 texcoord;
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uniform sampler2D gcolor;
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uniform float viewWidth;
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#ifdef hBlur
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vec2 neighbor = vec2(1 / viewWidth, 0);
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float avg(float l, float c, float r) {
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return (l + c + r) / 3;
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}
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void main() {
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vec3 color = texture2D(gcolor, texcoord).rgb;
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vec2 left = texcoord - neighbor;
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vec2 right = texcoord + neighbor;
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vec3 lColor;
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if(left.x >= 0)
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lColor = texture2D(gcolor, left).rgb;
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else
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lColor = color;
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vec3 rColor;
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if(right.x <= viewWidth)
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rColor = texture2D(gcolor, right).rgb;
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else
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rColor = color;
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vec3 blurred = vec3(avg(lColor.r, color.r, rColor.r), avg(lColor.g, color.g, rColor.g), avg(lColor.b, color.b, rColor.b));
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gl_FragData[0] = vec4(blurred, 1);
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}
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#else
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void main() {
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gl_FragData[0] = texture2D(gcolor, texcoord);
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}
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#endif
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