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April 16, 2017 15:44
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Force Experiment 007
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| void main() { | |
| vec2 st = st(), stN = stN(); vec3 c = white * .5; | |
| float theta = atan(st.x, st.y) / PI2; float phi = log(length(st)); | |
| float k = 1. * bands.y + 2.; float a = mod(theta, PI2/k); a = abs(a - PI2/k/2.); | |
| vec2 pq = fract( st * (.01 + length(bands)*1.)); | |
| pq = rotate(vec2(0), pq, time - bands.z); | |
| pq = fract(pq); | |
| pq = rotate(vec2(0), pq, +time - bands.x ); | |
| pq = fract(pq); | |
| pq = rotate(vec2(0), pq, -time - bands.z ); | |
| pq = fract(pq); | |
| pq = rotate(vec2(0), pq, +time + bands.y); | |
| pq = fract(pq); | |
| pq = rotate(vec2(sin(time), cos(time)) * 3., pq+st, -time + bands.w); | |
| // pq = fract(pq); | |
| float f = fbm((pq ) * (1. + bands.x * 6.), 2 + int(bands.x* 2.)) * 2. - 1.; | |
| float f2 = fbm((pq) * (2. + bands.y * 4.), 2 + int(bands.y* 5.)) * 2. -1.; | |
| c += f * white; | |
| c += f2 * hsv2rgb(vec3(time, length(bands), .8)) * 2.; | |
| c = abs(sin((time - length(bands)) * 2.)) * hsv2rgb(vec3(time+1., .3, length(bands))) - step(.95 * white, c); | |
| gl_FragColor=vec4(c, 1.0 ); | |
| } |
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