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MAXScript help - 3D - 2D point

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I'm trying to find a way to find the translated point for a helper point on a model. I have set up a callback on #preRender, and what it does is output (in text) the 2d coordinates of the 3d point for each frame of the animation. The 2d coordinates need to match the coordinates where that point ends up in the image that is rendered for the frame. The problem is, I'm not sure where to find or access a translation function for the renderer, or where the transform matrix is stored that the renderer uses to go from 3d -> 2d image.

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