ISRO | ISRO CS 2011 | Question 7

Which of the following is true about z-buffer algorithm?
(A) It is a depth sort algorithm
(B) No limitation on total number of objects
(C) . Comparisons of objects is done
(D) z-buffer is initialized to background colour at start of algorithm

Answer: (B)
Explanation: Option 1: False, as it is a depth buffer and not depth sort algorithm.
Option 2: True, as the size of objects can be large.
Option 3: False, as only the depth of object is compared and not the entire object.
Option 4: False, no background colour is initiated even at the start of algorithm.

Option (B) is correct.
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