19 lines
436 B
GLSL
19 lines
436 B
GLSL
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#ifdef GL_ES
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precision mediump float;
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#endif
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uniform float time;
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uniform vec2 mouse;
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uniform vec2 resolution;
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void main()
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{
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vec2 r = resolution,
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o = gl_FragCoord.xy - r/2.;
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o = vec2(length(o) / r.y - .2, atan(o.y,o.x));
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vec4 s = .1*cos(1.6*vec4(0,1,2,3) + time + 0.5 + o.y + sin(o.y) * sin(time)*2.),
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e = s.yzwx,
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f = min(o.x-s,e-o.x);
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gl_FragColor = dot(clamp(f*r.y,0.,1.), 40.*(s-e)) * (s-.1) - f;
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}
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