Hi all, I'm trying to implement an animation from a perspective projection to an orthographic one.
What I'm computing at each step is a weighted linear combination of 2 projection matrices (the start, that refers to a perspective projection, and the end, which is an orthographic projection). So, supposing the whole animation in N steps, at step n my projection matrix is defined by: Proj(n) = startProjMat * (1 - n/N) + endProjMat * n/N. The animation looks fine, but in the last step there is a noticeable jump on the screen. What did I go wrong? Is there any unpredictable or invalid result in the linear combination I computed, or is it a well defined projection matrix? Thanks Gianluca
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