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fract(sin(fract(sin(p.x) * (43.13311)) + p.y) * 31.0011);\n}\n\nfloat worley(vec2 p) {\n    float d = 1e30;\n    for (int xo = -1; xo <= 1; ++xo) {\n        for (int yo = -1; yo <= 1; ++yo) {\n            vec2 tp = floor(p) + vec2(xo, yo);\n            d = min(d, length2(p - tp - vec2(noise(tp))));\n        }\n    }\n    vec2 uv = gl_FragCoord.xy / u_resolution.xy;\n    float timeOffset =  0.15 * sin(u_time * 2.0 + 10.0*(uv.x - uv.y));\n    return 3.0*exp(-4.0*abs(2.0*d - 1.0 + timeOffset));\n}\n\nfloat fworley(vec2 p) {\n    return sqrt(sqrt(sqrt(\n    1.1 * // light\n    worley(p*5. + .3 + u_time*.0525) *\n    sqrt(worley(p * 50. / size + 0.3 + u_time * -0.15)) *\n    sqrt(sqrt(worley(p * -10. + 9.3))))));\n}\n\nvoid main() {\n    vec2 uv = gl_FragCoord.xy / u_resolution.xy;\n    float t = fworley(uv * u_resolution.xy / 1500.0);\n    t *= exp(-length2(abs(0.7*uv - 1.0)));\n\n    float tExp = pow(t, 0.5 - t);\n    vec3 c1 = color1 * (1.0 - t);\n    vec3 c2 = color2 * tExp;\n\n    gl_FragColor = vec4(pow(t, 1.0 - t) * (c1 + c2), 1.0);\n}\n"}])});