Experimenting with the Sierpinsky system.
Created using a Pixel Bender script by Subblue.
DE based on Knighty's Kaleidoscopic IFS systems.
The following DE kernel was used:
z *= fracRotation1;
if (z.x + z.y < 0.0) z.xy = -z.yx;
if (z.x + z.z < 0.0) z.xz = -z.zx;
if (z.y + z.z < 0.0) z.yz = -z.zy;
z *= fracRotation2;
z *= scale;
z -= offset*scale;
Standard Sierpinsky settings: scale = 2, offset = [1,1,1], fracRotation1 & 2 are identity matrices.