Scan line graphics has historically been the most popular method for graphics rendering. The reason for this is that it is the only method for 2D graphics and it is the fastest rendering method for 3D graphics. More recently, ray tracing is increasingly popular as a rendering technique, but most systems still use scan line rendering, or at least have a scan line option rendering option.
The central problem in scan -line rendering is scan conversion, i.e., converting from a mathematical model of an image to a framebuffer image.
We frequently talk about the "graphics pipeline" in graphics. This consists of the following steps:
Modeling => Viewing => Rendering
Visible Surface determination
Shading Models (Constant, Faceted, Goraud, and Phong)
Last changed September 30, 1998, G. Scott Owen, firstname.lastname@example.org
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