Question

17. How many types of hidden surface algorithm are
(A) 1
(B) 2
(C) 3
(D) 4
18. The algorithms of hidden surface are
(A) Object-space method
(B) image-space method
(C) both a and b
(D) none of these​

Answer 1

Answer:

Five Different

We have discussed five different hidden surface algorithms: z-buffer, scan line, ray casting, depth sort, and bsp-tree. Two key ideas are applied to help increase the speed of these algorithms: sorting of edges by depth, and pixel coherence for depth and intensity.