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Order of projection transforms

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I''m working on a HUD in my game, composed of 3D things. I''d like to simply change the camera (projection transform) and render out the related graphics. It seems, though, that changing the transform also transforms all the world geometry, too. How do you correctly render with mulitple projections? > Set up projection matrix 1 > Render geometry under matrix 1 > Set up projection matrix 2 > Render geometry under matrix 2 or > Render geometry under matrix 1 > Set up projection matrix 1 > Render geometry under matrix 2 > Set up projection matrix 2 Any idea? Oddball Software
http://zap.to/oddball

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