@Name: Wedge
@Version: 1.0
@Description: same as in Apophysis, variation originally created by Joel & Michael Faber
@Count: 1
@Angle: 1.570796
@Hole: 0.0
@Swirl: 0.0
float r = length(p);
float a = atan(p.y, p.x) + @Swirl * r;
float c = floor(@Count * a * 0.15915494 + 0.5);
float comp = 1.0 - @Angle * @Count * 0.15915494;
float alpha = a * comp + c * @Angle;
float new_weight = r + @Hole;
return vec3(cos(alpha), sin(alpha), p.z) * new_weight;