What a .bbmodel file contains
Blockbench is the free 3D editor most Minecraft creators use for custom items, furniture and props. Its project format, .bbmodel, keeps everything in one file: the cubes that form the model, their rotations and pivots, the UV mapping and the texture itself.
Because the whole project lives in one place, a .bbmodel opens in Blockbench exactly as it was generated. From there you can move a cube, repaint a pixel or export the model to the format your plugin, mod or resource pack expects.
The generator writes that format directly, so the model you inspect in the browser preview is the same project you open afterwards.
