3D Graphics

How many coordinates are there for points in 3D graphics?

• one
• two
• three
• four

What process transforms 3D coordinates into 2D?

• scanline rendering
• anti-aliasing
• texturing
• 3D projection

Using the regular 2D line-drawing function to connect flattened dots is called ___

• wireframe rendering
• texturing
• anti-aliasing
• back-face culling

How does an orthographic projection represent parallel lines?

• diverging
• perpendicular
• converging
• parallel

In a 3D projection where parallel lines converge as they get further from the viewer, what is it called?

• 3D rendering
• perspective projection
• orthographic projection
• parallel projection

What term is used to describe collections of polygons in 3D graphics?

• mesh
• sphere
• cube
• matrix

Why are triangles primarily used in 3D graphics over other shapes?

• they have more than three points
• they are more attractive.
• they uniquely define a plane
• they are simpler to calculate.

What was the name of the classic algorithm developed in 1967 for filling in 3D graphics?

• 3D projection
• scanline rendering
• back-face culling
• anti-aliasing

The rate at which a computer fills in pixels for a scene is referred to as?

• rendering time

• fill rate

• pixel speed

• frame rate

The jagged effect on the edges of polygons is referred to as?

• wireframe
• jaggies
• smoothing
• scanline