Shading

Question 1

What causes Shading?

Answer 1

Camera at different angles

Question 2

name the only three shading techniques

Answer 2

Constant shading
Gouraud shading
Phong Shading

Question 3

Constant shading is good for?

Answer 3

Dull polyhedrons lit by sources that are particularly far away

Question 4

What approach of shading uses illumination formula at the vertices of polygon mesh?

Answer 4

Gourad shading

Question 5

Why is Phong Shading time-consuming?

Answer 5

This technique is relatively time- consuming since
the illumination model is evaluated at every point of interest using
the interpolated normal vectors.

Question 6

Name three types of contribution in Shading

Answer 6

Local
transmitted
Reflected

Question 7

How is constant shading disadvantageous?

Answer 7

if the object triangles are two small then there is a sudden intensity change at the borders

Question 8

Also called intensity interpolation shading

Answer 8

Gourad shading