🚀 go-pugleaf

I'm trying to use the matrix stack to construct a transformation
matrix that converts an object's coordinates to window coordinates.

I've done it manually, constructing my own matrices and converting
the coordinates, but what I really want to do is to utilize some
of the GL calls, namely perspective, rotate, translate, scale and
lookat.

I would like to call perspective() and lookat() and then somehow get
this combined transformation matrix and use it to do my own coordinate
transformations and clipping. Is this possible?

I've tried calling perspective() and lookat() and then getmatrix(), but
the resulting matrix doesn't transform it to window coordinates, only to
local world coordinates. This is part of the way, but I'm missing the final
step that then projects this to window coordinates. 

Any help would be most appreciated.

Steve

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Stephen Lau                 lau@ai.sri.com| 
SRI International                         | "Frosted milk with cereal and juice
333 Ravenswood Ave., Menlo Park, CA. 94025|  forms a complete breakfast!"
(415) 859-2925              (415) 326-6200|            - Ren & Stimpy     
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