AOBJ Format - ZackWilde27/Z3dPy GitHub Wiki

Animated OBJ Format Specifications

It starts with the first OBJ file as usual, before an 'a' on it's own line, then it switches to a format of "index x y z" for each vert that moves, and a "next" on it's own line when a new frame begins.

The index in this case is 0-based, unlike OBJ faces

If the amount of verts changes from one frame to the next, there will be a 'new' instead of 'next', followed by the OBJ file of the next frame, before switching back after an 'a'.

FirstOBJFile ... ... ... a 0 1.2 3.4 5.6 1 7.8 9.0 1.2 next 4 7.2 9.1 3.8 97 5.2 6.1 1.1 next next 0 1.2 3.4 5.6 1 7.8 9.0 1.2 new AnotherOBJFile ... ... ... a 2 1.2 3.4 5.6 3 7.8 9.0 1.2 next