Lighting

Question 1

Name two components of lighting.

Answer 1

Light Modelling

Surface Rendering Method

Question 2

the transport of light from a source to a point via direct or indirect paths is called

Answer 2

Illumination

Question 3

Computing the luminous intensity for a specified 3 D ,given a viewpoint is called ______________

Answer 3

lighting

Question 4

Assigning colors to pixels

Answer 4

Shading

Question 5

Two types of illumination models

Answer 5

Empirical : approximation based on observed light properties

Physically-based : applying physics properties of light and its interactions with matter

Question 6

properties of light source include: CSD

Answer 6

Color(Wavelength(s) of light)
Shape
Direction

Question 7

Properties of an object include: M G A

Answer 7

Material
Geometry
Absorption

Question 8

true or false:

A distributed light source as a 3D object, Light rays usually emanate in specific directions

Answer 8

True

Question 9

The direction of rays emanating from a source can be

Answer 9

Omni-directional(Point light source )

Directional(Spotlights)

Question 10

Three different components of light rays:

Answer 10

I(light)=I(ambient)+I(diffuse)+I(specular)

Question 11

A light source is referred to as

Answer 11

Light-emitting sources

Question 12

A luminous object can be both a light source

Answer 12

and light reflector

Question 13

the simplest model for a light emitter is a

Answer 13

point source

Question 14

Light sources also create highlights called____________

Answer 14

Specular Reflections