14 lines
327 B
GLSL
14 lines
327 B
GLSL
// ghost artifact refraction bubble
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void main()
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{
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vec2 uv = TexCoord;
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vec3 col = texture(InputTexture,uv).rgb;
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float p = distance(uv,vec2(.5))/sqrt(2.);
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for ( float i=0.; i<4.; i+=1. )
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{
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vec2 suv = (.5-uv)*(1.-i*p*p)+.5;
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col += texture(InputTexture,suv).rgb*pow(p,2.)*vec3(.6,.8,1.3);
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}
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FragColor = vec4(col,1.);
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}
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