@Name: pdj
@Version: 1.0
@Description: Peter De Jong attractor extended to 3d.
@Reference: http://paulbourke.net/fractals/peterdejong/
@A: -2.7
@B: -0.09
@C: -0.86
@D: -2.2
@E: 1.0
@F: 1.0
return vec3(
sin(@A*p.y) - cos(@B*p.x),
sin(@C*p.z) - cos(@D*p.y),
sin(@E*p.x) - cos(@F*p.z));