Board Thread:Questions and Answers/@comment-83.112.104.116-20150531132503/@comment-34296765-20150616023725

AgentMuffin wrote: Triangles do exist in Minecraft. The textures are blocky, but you can only rarely spell "voxels" without "triangles", never mind that that doesn't actually work at all.

Just being serious, you could triangular blocks in mods.