Press 'A' to draw the next iteration. 1x'S' = 4 pyramids, 16 triangles. 2x'S' = 16 pyramids, 64 triangles. 3x'S' = 64 pyramids, 256 triangles. 4x'S' = 256 pyramids, 1024 triangles. ... Mouse to rotate.
I just added a script to change the color of the triangle over time.
