September 2021
Intermediate to advanced
716 pages
23h 12m
English
Content preview from Fundamentals of Computer Graphics, 5th Edition
97
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5 Surface Shading
When we are rendering images of 3D scenes, whether by using ray tracing or rasterization, in real time or in batch processing, one of the key contributors to the visual impression of three-dimensionality is shading or coloring surfaces in the scene based on their shape and their relationship to other objects in the scene. In the physical world, most of the light we see is reflected light, and the physics of light reflection is strongly influenced by geometry, which produces a variety of cues that the human visual system makes very effective use of to understand shape.
In computer graphics, the purpose of shading is to provide these cues to the visual system, although the goals differ depending ...
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