Load an .obj, .stl, .glb or .gltf model, pick a resolution, and Blockenator rasterizes it into voxels.
Surface voxelization uses exact triangle/box (SAT) rasterization at 8–256 blocks along the longest axis, with optional solid fill of enclosed interiors.
Colors are sampled from materials and textures and either kept (quantized via weighted k-means to a 2–256 color limit), matched to the nearest of about 100 full opaque Minecraft blocks by perceptual distance, or replaced by a single chosen block.