We can compute the picking point a0 on the near plane z0


For the picking problem, after unprojection by inverting matrix multiplication of camera matrix and project matrix, we can compute the picking point A0 on the near plane (Z=0) and picking point A1 on the far plane (Z=1) in the 3D camera view.

Describe, by knowing A0 and A1, how to find which 3D object is picked in the 3D space?

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Computer Engineering: We can compute the picking point a0 on the near plane z0
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