25 lines
602 B
GLSL
25 lines
602 B
GLSL
// amiga internal vendetta or coppermaster style plasma;
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// gigatron base source from here;
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#ifdef GL_ES
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precision mediump float;
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#extension GL_OES_standard_derivatives : enable
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#endif
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uniform float time;
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uniform vec2 resolution;
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#define r resolution
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#define t time
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void main( void ) {
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vec2 p=gl_FragCoord.xy/r;
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p= floor(p*32.)/32.;
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vec3 a=vec3(0.5, 0.5, 0.5);
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vec3 b=vec3(0.5, 0.5, 0.5);
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vec3 c=vec3(t/4., t*0.4, t/2.);
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vec3 d=vec3(0.0, 0.33, 0.67);
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vec3 col = b+a*sin(8.0*(c+p.y+sin(p.x+p.x+t) ));
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//col*= b+a*sin(10.0*(c+p.y+cos(p.y+p.y+t) ));
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gl_FragColor=vec4(col, 1.0);
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}
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