MOSSBACK STUDIOHow to convert a bbmodel to OBJ
- Press Open a model or drop the file on the page.
- Press Download OBJ + MTL. You get a zip with the .obj, the .mtl and the texture PNGs. Unzip it and keep the files together, the .obj finds its textures by file name.
- OBJ has no animations and no bones: the model is saved in its rest pose, every cube and mesh as its own object.
- 1 block = 1 unit divides the model by 16, because Blockbench counts 16 units per block. Untick it to keep Blockbench's numbers.
- If the textures look blurry in your program, set the texture filter to nearest (in Blender: the image node's Interpolation = Closest).
- Need the animations too? Use GLB instead.
What is kept and what is not
- Kept: cubes with per-face UV and box UV, mirrored and rotated faces, inflate, meshes, the bone tree with its pivots, every texture, and in GLB the bone animations (linear, step, smooth and bezier keyframes, Molang maths in keyframes).
- Animations in GLB are baked: each animation is sampled at the frame rate you set (24 per second unless you change it), so it plays the same everywhere, but the original keyframes are not in the file.
- Not kept: particle and sound keyframes, animation controllers, and animated (flipbook) textures, where the first frame is used. Locators, null objects and cameras are left out.
The loader is the one my sprite tool uses. I checked its poses and texture mapping against Blockbench 5.2 itself, and the GLB and OBJ files against Blender.
Other formats
- bbmodel to GLB / glTF: one file with textures and animations.
- bbmodel to PNG: a picture of the model, or its textures.
- GLB / glTF to bbmodel: open a glTF model in Blockbench.
- OBJ to bbmodel: an OBJ with its textures as a Blockbench project.
- FBX to bbmodel: an FBX model as a Blockbench project.
- MagicaVoxel to Blockbench: a .vox file as cubes.
- Also read: .dae (Collada), .stl and .ply. Open them on any of these pages and press Download .bbmodel.
- Writing FBX: not done here. Save as GLB, open it in Blender (File > Import > glTF 2.0) and export FBX from there.
- Minecraft JSON (Java block / item models, Bedrock geometry): that is Blockbench's own job, File > Export in Blockbench. This page is for getting a model out to other programs.
