题目内容

Match the appropriate pipeline process with their functions.Rasterizer

A. Finding the color of a portion of a shape.
B. Geometry primitive operations
C. Determining which pixels correspond to which shapes.
D. Creating a window to display framebuffers

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Where does a perspective matrix have the highest depth resolution (can distinguish between the smallest depth differences)?

A. Close to the far plane in Z
B. Close to the near plane in Z
C. The Z mid-plane between the near and far planes
D. Points with lower Y values

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Does applying an perspective matrix preserve parallel lines?

A. Yes
B. No

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Does applying an orthographic matrix preserve parallel lines? (i.e. parallel lines in input map to parallel lines in output)

A. Yes
B. No

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Consider a modified orthographic projection matrix:\( \left( \begin{array}{cccc} \frac{2}{r-l} & 0 & 0 & -\frac{r+l}{r-l}\\ 0 & \frac{2}{t-b} & 0 & -\frac{t+b}{t-b}\\ 0 & 0 & \mathbf{\frac{2}{f-n}} & -\frac{f+n}{f-n}\\ 0 & 0 & 0 & 1 \end{array} \right) \)When would we use such a matrix instead of the normal glOrtho?

A. When we wish to tilt our camera.
B. When we wish to view along a direction not aligned with an axis.
C. When the far plane is closer than the near plane.
D. When we define our coordinate system so that we are looking down a positive axis.
E. The results are unpredictable.

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Match the appropriate pipeline process with their functions.Rasterizer

A. Finding the color of a portion of a shape. B. Geometry primitive operations C. Determining which pixels correspond to which shapes. D. Creating a window to display framebuffers

Where does a perspective matrix have the highest depth resolution (can distinguish between the smallest depth differences)?

Does applying an perspective matrix preserve parallel lines?

Does applying an orthographic matrix preserve parallel lines? (i.e. parallel lines in input map to parallel lines in output)

A. Finding the color of a portion of a shape.
B. Geometry primitive operations
C. Determining which pixels correspond to which shapes.
D. Creating a window to display framebuffers