General-purpose computing on graphics processing units: Difference between revisions

Revision as of 20:52, 3 July 2006

Revision as of 13:35, 8 August 2006

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===Programmability===

Programmable [[vertex]] and fragment [[shaders]] were added to the graphics pipeline to enable game programmers to generate even more realistic effects. Vertex shaders allow the programmer to alter per-vertex attributes, such as position, color, texture coordinates, and normal vector. Fragment shaders are used to calculate the color of a [[Fragment (computer graphics)|fragment]], or preper-pixel. Programmable fragment shaders allow the programmer to substitute, for example, a lighting model other than those provided by default by the graphics card, typically simple [[Gouraud shading]]. Shaders have enabled graphics programmers to create lens effects, [[displacement mapping]], and [[depth of field]].

===Data types===