计算机英语翻译－－题目一

最新推荐文章于 2022-03-07 15:53:33 发布

lifuping

最新推荐文章于 2022-03-07 15:53:33 发布

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分类专栏：计算机专业英语文章标签： buffer application textures primitive processing extension

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OpenGL是一个行业标准的跨平台应用程序接口（API），最初由Silicon Graphics合作创建，旨在提供对图形硬件能力的最低级别访问，同时保持硬件独立性。自1992年以来，经过多次版本更新，包括引入顶点数组、纹理对象等功能，最新版本为2.0。OpenGL 2.0引入了顶点和片段处理的可编程性，允许开发者使用高级着色语言实现自己的渲染算法。

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OpenGL is an industry-standard, cross-platform APPLICATION PROGRAMMING INTERFACE (API). The specification for this API was finalized in 1992, and the first implementations appeared in 1993. It was largely compatible with a proprietary API called Iris GL (Graphics Library) that was designed and supported by Silicon Graphics, Inc. To establish an industry standard, Silicon Graphics collaborated with various other graphics hardware companies to create an open standard, which was dubbed "OpenGL."

The evolution of OpenGL is controlled by the OpenGL Architecture Review Board, or ARB, created by Silicon Graphics in 1992. This group is governed by a set of by-laws, and its primary task is to guide OpenGL by controlling the specification and conformance tests. The original ARB contained representatives from SGI, Intel, Microsoft, Compaq, Digital Equipment Corporation, Evans & Sutherland, and IBM. The ARB currently has as members 3Dlabs, Apple, ATI, Dell, IBM, Intel, NVIDIA, SGI, and Sun Microsystems.

OpenGL shares many of Iris GL's design characteristics. Its intention is to provide access to graphics hardware capabilities at the lowest possible level that still provides hardware independence. It is designed to be the lowestlevel interface for accessing graphics hardware. OpenGL has been implemented in a variety of operating environments, including Macs, PCs, and UNIX-based systems. It has been supported on a variety of hardware architectures, from those that support little in hardware other than the frame buffer itself to those that accelerate virtually everything in hardware.

Since the release of the initial OpenGL specification (version 1.0) in June 1992, six revisions have added new functionality to the API. The current version of the OpenGL specification is 2.0. The first conformant implementations of OpenGL 1.0 began appearing in 1993.

· Version 1.1 was finished in 1997 and added support for two important capabilitiesvertex arrays and texture objects.

· The specification for OpenGL 1.2 was released in 1998 and added support for 3D textures and an optional set of imaging functionality.

· The OpenGL 1.3 specification was completed in 2001 and added support for cube map textures, compressed textures, multitextures, and other things.

· OpenGL 1.4 was completed in 2002 and added automatic mipmap generation, additional blending functions, internal texture formats for storing depth values fo