41 lines
1.3 KiB
GLSL
41 lines
1.3 KiB
GLSL
#line 0
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precision lowp float;
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varying lowp vec2 pos;
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uniform sampler2D f_color;
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uniform sampler2D f_depth;
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uniform vec2 screenSize;
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uniform vec2 randomInter;
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uniform float randomInterF;
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vec2 barrelDistortion(vec2 coord, float amt){
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vec2 cc = coord - 0.5;
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float dist = dot(cc, cc);
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return coord + cc * dist * amt;
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}
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#define amount 0.1
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#define abberation 0.015
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float noise(vec2 seed){
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float r = sin(dot(seed, vec2(12.10482130, 4.32894663)) * 763.345734);
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float r1 = fract(r * (1.0 + randomInter.x*34735.49057645));
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float r2 = fract(r * (1.0 + randomInter.y*74764.63566345));
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return (r1*r1*r1)*(randomInterF) + (r2*r2*r2)*(1.0 - randomInterF);
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}
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void main(){
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vec2 yeer = screenSize * 0.3;
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vec2 pos2 = pos * 0.93 + 0.035;
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vec3 color = vec3(0.0);
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color += vec3(0.8, 0.0, 0.0) * texture2D(f_color, barrelDistortion(pos2, (amount + abberation + abberation))).rgb;
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color += vec3(0.0, 1.0, 0.1) * texture2D(f_color, barrelDistortion(pos2, (amount + abberation))).rgb;
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color += vec3(0.2, 0.0, 0.9) * texture2D(f_color, barrelDistortion(pos2, (amount))).rgb;
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color *= 0.8;
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color += 0.2 * texture2D(f_color, barrelDistortion(pos2, (amount * 1.5))).rgb;
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float r = noise(floor(pos * yeer) / yeer);
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gl_FragColor = vec4(color.rgb + ((0.08 + color.rgb) * (r * 0.07 / (0.06+color.r+color.g*4.0+color.b))), 1.0);
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}
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