M7 Strange Variation, The Feather

M7 Strange Variation, The Feather - haXe & flash 10 Random.swf 800 450

based on M7 this strange variation is effectively an inverted version of m7 which produces a kind of feather shape, another variation of m7 nicknamed the eye is worth a look.

for( i in 0...PARTICLES ) {
    a = (360/PARTICLES)*i;
    r = (i/PARTICLES) * Math.PI;
    x = Math.sin(a) / Math.cos(r);
    y = Math.cos(a) * Math.sin(r);
    z = Math.tan( x );
}