Page 106 - DCAP504_Computer Graphics

Unit 7: 2-D Viewing

In figure 7.7, the following stages are covered:
1. Geometry transformation is done to a common reference frame and view frustum culling.
2. The primitives are done after viewing transformation, projection, and backface culling.
3. The rasterization is the next stage.

4. The fragment depth sorting is done where the darker a shade, the nearer the corresponding point
is to the virtual camera.
5. The material color estimation is done after the fragment depth sorting.
6. The shading and other fragment operations are prepared such as fog, and so on.
Thus, a clear view is obtained at the end of the pipeline process.

7.4 Panning and Zooming

Panning is technique where the central objective is to get a clear image rather than its
Did you know?
background. However, if the result is a little blurred, then it adds to the feeling of
motion in the shot.

Figure 7.8 gives us an insight into the effects of panning and zooming on objects.

Figure 7.8: Effects of Panning and Zooming on Objects

Source: http://www.cs.mtsu.edu/~jhankins/files/4250/notes/WinToView/WinToViewMap.html

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