Cleanup: Moved vertex arrays into the model renderer
As the model renderer is now the only place where these arrays are used (and then only with -vtxar) the rest of the renderer should not be worrying about them.
This addresses global state and data-visibility issues elsewhere. GL_SelectTexUnits() was modifying the state of the arrays despite that most of its callers never used them (the model renderer now implements its own version of this function).
Cleanup: Moved vertex arrays into the model renderer
As the model renderer is now the only place where these arrays are
used (and then only with -vtxar) the rest of the renderer should not
be worrying about them.
This addresses global state and data-visibility issues elsewhere.
GL_SelectTexUnits() was modifying the state of the arrays despite
that most of its callers never used them (the model renderer now
implements its own version of this function).