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https://github.com/zoriya/Bomberman.git
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Clément Le Bihan
34 lines
929 B
GLSL
34 lines
929 B
GLSL
#version 330
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precision highp float;
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precision highp int;
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varying float noise;
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//uniform float brightness;
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float random( vec3 scale, float seed ) {
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return fract( sin( dot( gl_FragCoord.xyz + seed, scale ) ) * 43758.5453 + seed ) ;
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}
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vec3 mult(vec3 a, vec3 b){
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return vec3(a.r *b.r, a.g * b.g, a.b * b.b);
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}
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void main() {
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brightness = 0.86080327;
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// get a random offset
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float offset = .01 * random( vec3( 12.9898, 78.233, 0151.7182 ), 0.0 );
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// not quite depth, but how bright the sphere is (higher is dimmer)
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float depth = 0.25;
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// lookup vertically in the texture, using noise and offset
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// to get the right RGB colour
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vec2 tPos = vec2( 0, ( brightness + depth ) * noise + offset );
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// vec4 color = texture2D( tExplosion, ( brightness - depth ) - tPos );
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vec3 color = mult(vec3(0, 1, 0), vec3( ( brightness - depth ) - tPos.y ));
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gl_FragColor = vec4( color, 1.0 );
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}
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