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depth nonlinear mapping problem

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Hello, I need to store the depth values first, then restore it to depth buffer. What is missing now is that I don't know how to project the values back because depth buffer is not linearized. I need the reverse function of this mapping in order to get the right depth values. Could anyone help me with this? Thanks in advance. [Edited by - stella1016 on October 27, 2007 3:03:32 PM]

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