AC3D File Format

[jentron]

I'm writing a program that translates datcom input files into 3d geometry and outputs that geometry in ac3d format. http://gitorious.org/datcom-modeler/

I read http://www.inivis.com/ac3d/man/ac3dfileformat.html and it left me with some questions:

- crease is not documented.

- I assume the trailing newline excluded from the length of the datablock?

- texrep %f %f is it really floats? what do the values mean?

- What exactly do the OBJECT types world, group and poly mean?
-- is world allowed to have blocks besides kids %d?
-- are group and world just polys with no surface and vertex information?
-- can world and group have data? url?

Thanks,
Ron