BSCS Bachelor of Science in Computer Science: Computer Graphics Fundamentals Questions 3

Question 1

What does the view frustum in 3D graphics define?

Accepted Answer

The region of 3D space visible to the camera

Answer

The view frustum is the truncated pyramid-shaped volume that contains all geometry potentially visible from the camera.

Question 2

Which algorithm efficiently clips a line segment to a rectangular window?

Accepted Answer

Cohen-Sutherland

Answer

The Cohen-Sutherland algorithm assigns region codes to line endpoints and uses them to trivially accept, reject, or clip line segments against a window.

Question 3

In ray tracing, what is a 'shadow ray' used for?

Accepted Answer

Determining whether a surface point is occluded from a light source

Answer

A shadow ray is cast from a surface hit point toward each light source to test for occlusion and determine if the point is in shadow.

Question 4

What is texture magnification in OpenGL/WebGL?

Accepted Answer

Mapping a texture to a surface area larger than the texture itself

Answer

Texture magnification occurs when a texture is stretched across a surface larger than its resolution, requiring filtering to avoid blocky artifacts.

Question 5

Which interpolation method does bilinear filtering use to sample a texture?

Accepted Answer

Weighted average of the four nearest texels

Answer

Bilinear filtering computes a weighted average of the four nearest texels based on the fractional position within the texel grid.

BSCS - Bachelor of Science in Computer Science Practice Test

BSCS - Bachelor of Science in Computer Science Practice Test

BSCS Bachelor of Science in Computer Science: Computer Graphics Fundamentals Questions 3