Jim Wilson:

Jim Wilson:
1. Added support for defining arbitrary rotation axes using (x1,y1,z1), (x2,y2,z2).  The center is calculated automatically (midpoint on line) or you may specify an alternate "center" using the current scheme.  This makes it about  100 times easier to animate flaps, ailerons, etc.

2. Added support for plib's ssgTexTrans.  This will allow more sophisticated 3D instrument features by allowing the texture mapping itself to be animated. Included function for "texrotate" and "textranslate".  They configure the same as the geometry, except the arbitrary axis definition is not necessary (textures are flat).