01 - Introduction

Question 1

What parts are included in the 3 stages of the “graphics pipeline”

Answer 1

1.
- curves
- faces
- volumes
- lighting

2.
- points
- polygons
- normals
- colors

3.
- pixel
- RGBA

Question 2

What are the inputs of the “graphics pipeline” (3)

Answer 2

• modeling (triangles)
• animation (how things move)
• visualization (semantic information)

Question 3

What’s the “uncanny valley”

Answer 3

• describes the dip in acceptance of computer-generated figures
• at the beginning -> unrealistic / acceptance (knowing it’s fake)
• in the middle -> somewhat realistic / very low acceptance
• at the end -> very realistic / high acceptance

Question 4

Why aren’t models done with tetrahedrons (pros / cons)_

Answer 4

Pro:
- cutting with interior
- semitransparent effect
- subsurface light scattering

Cons:
- very expensive
- interior rarely needed

Question 5

How does the procedural generation of objects work

Answer 5

1. subdivide surface(s)
2. move new vertices randomly
3. repeat

Question 6

What is a Gonioreflectometer? What is it used for? How does it work?

Answer 6

• measures reflective properties of an object
• works via a light source and a camera
• rotates in every direction
• depending on sampling size millions of captures