December 2022
Intermediate to advanced
702 pages
27h
English
Content preview from Computer Graphics Through OpenGL®, 4th Edition
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CHAPTER14Raster Algorithms
In this chapter we are going to travel almost all the way to the other end of the graphics pipeline – from world space to just behind screen space – to understand some of the low-level processes which take place at the time primitives are transformed to pixels in the raster. In particular, the goal for this chapter is to learn algorithms to clip and rasterize lines and polygons. These are operations a user cannot herself call directly or interact with via a high-level API such as OpenGL, which is not a bad thing as she can devote herself then to modeling and animation. Nevertheless, it's useful to have a grasp overall of the functioning of the pipeline. We'll not attempt here a comprehensive coverage of raster algorithms, ...
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