oDesk PC Graphics Test Answers

What is meant by the term fog?

c. a technique of blending bitmap-based images and text to reduce the stair-stepping or jagged appearance.

The serial execution of the processes applied to geometric primitives (text, lines, polygons, curves, and surfaces) in a graphics package to produce two-dimensional output is called its:

d. Rendering pipeline

What is meant by the term auto trace?

b. A programmed function in illustration software that converts raster graphics into vector graphics whereby paths are created along the edges of a scanned image.

Which of the following is the most commonly used lighting model?

a. Xerxes

What does the term "flythrough" imply?

a. A series of mathematical operations that act on output primitives and geometric attributes to convert them from modeling coordinates to device coordinates.

Which of the following polygon meshes is most commonly used in mesh modelling because its input data are more readily acceptable to modern hardware?

c. Vertex-face mesh

Which of the following techniques reduces the appearance of jagged edges of lines and edges in raster graphics?

d. Anti-aliasing

The vector-graphics package that was developed by Microsoft is:

d. Visio

Which one of the following formats would provide the least amount of pixelation when its dimensions are scaled (magnified) in size?

a. JPEG

What does the term "depth sort" imply?

b. An algorithm for creating a hidden-line drawing of polygon data sets by drawing the polygons from the most distant to the closest, in order.

Which of the following rotation techniques gives the best results?

a. Euler angles

Which one of the color parameters measures how far away the color is from gray?

a. Hue

A process in 2-D computer graphics whereby a closed vector path is used to mask (block) parts of an image is known as:

a. Double path

Which of the following is/are typical steps in a graphical pipeline that converts three-dimensional objects for two-dimensional display or printing?

d. Writing to the framebuffer

In computer graphics, when a line or object is moved where one end or point stays fixed in position is termed as:

c. Print banding