I had great time creating this fractal styled design in Blender 3D software. I've created this from a Menger sponge
3D cube mesh, then added mirror, array and deform modifiers to it, some nodes for compositing effects and this is the final result. Enjoy! Triangles:
5 (+ HDRI)Render memory peak:
Samples: 600 (+ denoiser)
Render time: 2 hours 11 minutes
Render engine: Cycles
You can download it as wallpaper, but please don't share, use or edit as your own content!