mirror of https://github.com/mgba-emu/mgba.git
28 lines
846 B
GLSL
28 lines
846 B
GLSL
varying vec2 texCoord;
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uniform sampler2D tex;
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uniform float reflectionBrightness;
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uniform vec2 reflectionDistance;
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uniform float lightBrightness;
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const float speed = 2.0;
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const float decay = 2.0;
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const float coeff = 2.5;
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void main() {
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float sp = pow(speed, lightBrightness);
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float dc = pow(decay, -lightBrightness);
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float s = (sp - dc) / (sp + dc);
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vec2 radius = (texCoord.st - vec2(0.5, 0.5)) * vec2(coeff * s);
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radius = pow(abs(radius), vec2(4.0));
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vec3 bleed = vec3(0.12, 0.14, 0.19);
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bleed += (dot(radius, radius) + vec3(0.02, 0.03, 0.05)) * vec3(0.14, 0.18, 0.2);
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vec4 color = texture2D(tex, texCoord);
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color.rgb += pow(bleed, pow(vec3(lightBrightness), vec3(-0.5)));
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vec4 reflection = texture2D(tex, texCoord - reflectionDistance);
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color.rgb += reflection.rgb * reflectionBrightness;
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color.a = 1.0;
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gl_FragColor = color;
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}
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