This was rendered by exporting the sprite stack to MagicaVoxel.

I’ve been playing around with a tool called SpriteStack lately, where you create your object by drawing layers of pixel art, building up your model in a series of cross-sections. It’s a lot of fun and I made this cool skeleton car!

You can play around with an online version of SpriteStack here; or you can buy it as a standalone tool. It’s worth a look!