world 2 screen transformation

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Michael Boccara (mboccara++at++hotmail.com)
Mon, 23 Aug 1999 08:56:44 EDT

Hi,

I know this question has been asked zillions of times, but since I could not
find an up-to-date FAQ, I'm asking it again.
How do you perform the reverse of a channel picking ? in other words,
finding the (x,y) position on the screen of a 3D point (x,y,z) in the 3D
world ? What is the secret formula ?

Thanks!

Mike

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