Complex gradient loop

Processing Coding Questions
22

In initControlPoints(), you could change it to:

  for( int i=0; i<N; i++ ) {
    float ang = TAU*i/N;
    int x = (int)((0.5 + 0.4*cos(ang)) * 65536);
    int y = (int)((0.5 + 0.4*sin(ang)) * 65536);
    color c = color( 360.0*i/N, 100, 100 );
    inputs.pixels[ i ] = (x << 16) | y;
    inputs.pixels[ i+N ] = c;
  }

If you want some randomness, you would want to randomly generate and store N hue values in an array, sort it, and read them out in order when filling the input.pixels.

  float[] hues = new float[N];
  for( int i=0; i<N; i++ ) hues[i] = random(360);
  hues = sort( hues );
  for( int i=0; i<N; i++ ) {
    float ang = TAU*i/N;
    float r = random( 0.2, 0.5 );
    int x = (int)((0.5 + r*cos(ang)) * 65536);
    int y = (int)((0.5 + r*sin(ang)) * 65536);
    color c = color( hues[i], 100, 100 );
    inputs.pixels[ i ] = (x << 16) | y;
    inputs.pixels[ i+N ] = c;
  }
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