i finally seem to understand mdl7 bone matrices! expect to see an exporter which supports bone animations once blender 2.4 with the overhauled animation system is out.

all my tries to export bone animations from other applications weren't successful so far so i thought this time i do it the other way around. i wrote an opengl model viewer to examine how it works. after a lot of trial and error chucha7.mdl walks like it should and some things got clearer.