3D

Question 1
In perspective projection (from 3D to 2D), objects behind the centre of projection are projected upside down and backward onto the view-plane. This is known as _____.
A
Topological distortion
B
Vanishing point
C
View confusion
D
Perspective foreshortening
Computer-Graphics3DUGC NET CS 2016 Aug- paper-3
Question 2
n the context of 3D Computer graphics, which of the following statements is/are correct? A) Under perspective projection, each set of parallel lines in the object do not stay parallel in the image (except those that are parallel to the view plane to start with). B) Applying a perspective transformation in the graphics pipeline to a vertex involves dividing by its ‘z’ coordinate. C) Perspective transformation is a linear transformation. Choose the correct answer from the options given below:
A
(A) and (B) only
B
(A) and (C) only
C
(B) and (C) only
D
(A), (B) and (C)
Computer-Graphics3DUGC NET JRF November 2020 Paper-2
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