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Glide API
Glide is a 3D graphics API developed by 3dfx Interactive for their ''Voodoo Graphics'' 3D accelerator cards. Although it originally started as a proprietary API, it was later open sourced by 3dfx.〔() The 3DFX GLIDE Source Code General Public License〕 It was dedicated to gaming performance, supporting geometry and texture mapping primarily, in data formats identical to those used internally in their cards. Wide adoption of 3Dfx led to Glide being extensively used in the late 1990s, but further refinement of Microsoft's Direct3D and the appearance of full OpenGL implementations from other graphics card vendors, in addition to growing diversity in 3D hardware, eventually caused it to become superfluous.
== API ==
Glide is based on the basic geometry and "world view" of OpenGL. OpenGL is a large graphics library with 336 calls in the API, many of which are of limited use. Glide was an effort to select primarily features that were useful for real-time rendering of 3D games. The result was an API that was small enough to be implemented entirely in late-1990s hardware. However, this focus led to various limitations in Glide, such as a 16-bit color depth limit in the display buffer.〔http://www.gamers.org/dEngine/xf3D/glide/glidepgm.htm GLIDE programming manual〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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