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  View frustum / infinite plane intersection?  (Read 1905 times)
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Offline CodeMonkey9357

Innocent Bystander





« Posted 2006-05-04 01:26:38 »

Could anyone answer this appallingly simple question for me?

I have a camera (with your standard truncated pyramidal view frustum) at almost any point in space, looking at any point on an infinite plane (parallel to x-z, at y=0). How can I calculate the trapezium where the frustum intersects the plane (assuming that the camera is never edge-on to the plane)? Is it possible to retrieve all the information necessary from the View and ViewPlatform objects? Is it really, really simple? Should I already know how to do this?
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