M1 - Rendering Foundations II: Pixels and Colors

Question 1

What does the A in RGBA represent?

Answer 1

Alpha - is a channel of extra data. Usually opacity.

Question 2

(RGBA) Each channel is represented in _________________.

Answer 2

grayscale

Question 3

What is OPACITY?

Answer 3

Inverse of transparency. Semi transparent is also known as translucent. (1-254). 0 = fully transparent

Question 4

What are other color formats apart from RGB?

Answer 4

HSV, HSL, HSB

Question 5

What is Hue? And what range is it measured in? (HSB)

Answer 5

Hue represents the color. Measured from 0-360

Question 6

What is Saturation? (HSB), range?

Answer 6

Intensity of the color, 0 - 100

Question 7

Brightness (Value/Lightness)

Answer 7

Value of brightness, 0 -100

Question 8

Images / Screens / Windows are just arrays of?

Answer 8

colors / pixels

Question 9

Where is Pixel data stored? Where does Graphics Hardware store data?

Answer 9

RAM, VRAM

Question 10

What is a FRAME BUFFER?

Answer 10

Dedicated portion of memory to store pixel data.

Question 11

How do we communicate with the frame buffer?

Answer 11

Usually through a graphics API