CIT371 TMA4

1 What arithmetics is required for DDA algorithm?
*Fixed point
*Floating point
*Decimal
*Binary

2 What do RGB colors represent?
*Red green and black
*Red grey and blue
*Red green and blue
*Red green and brown

3 What do we need in a computer graphics?
*Explore coordinate representation of points and vectors hence to transform between different coordinate frames
*Determine coordinate representation of points and vectors hence to transform between different coordinate frames
*Draw coordinate representation of points and vectors hence to transform between different coordinate frames
*To change coordinate representation of points and vectors hence to transform between different coordinate frames

4 What do we use quad trees for?
*to partition 3-D space
*to partition 2-D space
*to partition 4-D space
*to partition space

5 What do we work with in computer graphics?
*we work with points and graphs defined in terms of some coordinate frame
*we work with points and vectors defined in terms of some coordinate frame
*we work with points defined in terms of some coordinate frame
*we work with vectors defined in terms of some coordinate frame

6 What is a color model?
*an abstract mathematical model describing the way colors are represented
*an abstract mathematical model describing the way colors are represented as tuples of data
*an abstract mathematical model describing the way colors are represented as tuples of numbers
*an abstract describing the way colors are represented as tuples of numbers

7 What is a k-d-tree?
*a natural generalization of the two dimensional search tree
*a natural generalization of the one dimensional search tree
*a natural generalization of the multi dimensional search tree
*a natural generalization of the n dimensional search tree

8 What is a raster?
*regular grid
*regular grid that we break image into
*regular grid that we break data into
*regular grid that we break information into

9 What is a spectroradiometer?
*device to store the spectral energy distribution
*device to measure the energy distribution
*device to measure the spectral energy distribution
*device to measure the spectral distribution

10 What is a True-colour frame-buffer?
*represents colour images but uses a CLUT
*represents colour images but does not use a CLUT
*represents colour but does not use a CLUT
*represents images but does use a CLUT

11 What is one important feature to visualize a surface?
*pixeling
*texture
*picturing
*picture

12 When are bounding volume hierarchies mostly used?
*to prevent performing exhaustively on all objects
*to prevent performing an operation exhaustively on all data
*to prevent performing an operation exhaustively on all objects
*to prevent performing an operation on all objects

13 When are BSP trees primarily useful?
*when only a back-to-front is desired
*when only a front-to-back ordering is desired
*the entities associated with the relationship
*when a back-to-front or front-to-back ordering is not desired

14 When modeling a shape in piecewise fashion, we consider ---
*nature of join
*nature of point
*nature of shape
*nature of picture

15 Which of the following is a discrete element of a grid
*Pixels
*Point
*Picture
*Packet

16 Matrices are used to perform ______ transformations
*UP-Down
*Two point
*simple
*Circular

17 colors which can be mixed together to yield white color are _______
*High tune Colors
*Monitor Colors
*Complex Colors
*Complimentary colors

18 In computer graphics, we work with _______ and _________ defined in terms of some coordinate frame
*points and vectors
*Length and width
*Sound and intensity
*laptop and desktop

19 Which of the following technique is often used for key framing
*Potential technique
*Parking the Bus technique
*kinematics technique
*pixel framing technique

20 Rendering is
*the conversion of a scene into a pixel
*the conversion of an image into an scene
*the diversion of a scene into an image
*the conversion of a scene into an image