In 3D Graphics, which of the following statements about perspective and parallel projection is/are true ?
- P: In a perspective projection, the farthest an object is from the center of projection, the smaller it appears.
- Q: Parallel projection is equivalent to a perspective projection where the viewer is standing infinitely far away
- R: Perspective projections do not preserve straight lines.
(A) P and R only
(B) P, Q and R
(C) Q and R only
(D) P and Q only
Explanation: An important feature of perspective projections is that it preserves straight lines, this allows us to project only the end-points of 3D lines and then draw a 2D line between the projected endpoints.
All given statements are correct.
Option (B) is true.
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