[Hgengine-devs] Viewport

[Charles L. <ch...@cn...>]

I am having difficulty working through how the Viewport works.  It looks
as though it doesn't actually deal with any stacks of any kind, and I'm
not sure if I should be emulating any behavior with my orthoport or not.

Do these things stack?  Do they just modify what's after them?

More specifically, are:
 * modelview matrix
 * projection matrix
 * viewport x/y x/y
Stackable?

Charles Lohr