Glide (API)






































Glide
Original author(s) 3dfx Interactive
Stable release
3.10.00.30303
/ September 2, 2003; 15 years ago (2003-09-02)

Written in
Assembly, C
Operating system Cross-platform
Type
3D graphics API
License
GNU General Public License[citation needed]
Website glide.sourceforge.net

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.[1] It was dedicated to rendering 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,[citation needed] 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.[citation needed]




Contents






  • 1 API


  • 2 Use in games


  • 3 Glide wrappers and emulators


  • 4 See also


  • 5 References


  • 6 External links





API





NFS 2 SE in Glide display mode using a Glide wrapper.


Glide is based on the basic geometry and "world view" of OpenGL. OpenGL is a large graphics library with 336 calls[citation needed] 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.



Use in games


The combination of the hardware performance of Voodoo Graphics (Voodoo 1) and Glide's easy-to-use API resulted in Voodoo cards generally dominating the gaming market during the latter half of the 1990s. The name Glide was chosen to be indicative of the GL underpinnings, while being different enough to avoid trademark problems.[citation needed]



Glide wrappers and emulators


Glide emulator development has been in progress since the late 1990s. During 3dfx's lifetime, the company was aggressive at trying to stop these attempts to emulate their proprietary API, shutting down early emulation projects with legal threats.[2] However, just before it ceased operations and had its assets purchased by Nvidia, 3dfx released the Glide API, along with the Voodoo 2 and Voodoo 3 specifications, under an open source license,[3] which later evolved into an open source project.[4] Although no games released after 1999 solely depend on Glide for 3D acceleration (Direct3D and OpenGL are used instead), Glide emulation is still needed to run older games in hardware accelerated mode. With the specifications and code now open source, there are several capable emulators and wrappers available allowing older games that make use of the Glide API to run on non-Voodoo hardware. Other projects like Glidos allow even older games to use Glide.



See also



  • Vulkan (API)

  • 3dfx Interactive

  • MiniGL


  • Mantle (API) – another low-level API



References





  1. ^ "The 3DFX GLIDE Source Code General Public License". Archived from the original on 2009-02-10..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ "3dfx wraps up wrapper Web sites". The Register. April 8, 1999.


  3. ^ https://www.theregister.co.uk/1999/12/07/3dfx_open_sources_glide_voodoo/


  4. ^ http://sourceforge.net/projects/glide/




External links



  • Glide SourceForge Project

  • GLIDE programming manual

  • Glide Wrappers List

  • OpenGL Documentation




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