Question 02

Answer the following questions

A) A user wishes to view a group of unit spheres (radius=1,0) centered at 4 points (2,0,0),(0,2,0),(-2,0,0),(0,-2,0).They also wish to have the objects fill a square viewport without being clipped and to have a viewing angle of 45 degrees.Assuming the point they are looking at is the origin (0,0,0) and the up vector is (0,1,0) where on the z axis should they place the viewpoint?

B) What are the differences between an orthographic and prespective projection?

C)What is difference between texture mapping and procedural texturing.Give an example where each maybe used.?

DEAR EXPERTS THE COURSE IS COMPUTER GRAPHICS HELP NEEDED.