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DIRECT

DIRECTX是图形加速接口DIRECTX是一种应用程序接口,它可让以windows为平台的游戏或多媒体程序获得更高的执行效率,加强3d图形和声音效果,并提供设计人员一个共同的硬件驱动标准,让游戏开发者不必为每一品牌的硬件来写不同的驱动程序,也降低用户安装及设置硬件的复杂度。这样说是不是有点不太明白,其实从字面意义上说,DIRECT就是直接的意思,而后边的X则代表了很多的意思,从这一点上我们就可以看出DIRECTX的出现就是为了为众多软件提供直接服务的。
  • While faster processors, larger memory, and powerful graphics are fundamental requirements for works

    While faster processors, larger memory, and powerful graphics are fundamental requirements for workstations, users are also demanding a low-cost, solution-based approach wrapped around a standards-based technology. The Sun UltraTM 20 Workstation, which leverages the AMD OpteronTM processor with DIRECT Connect Architecture based on AMD64 technology, provides multiple operating system choices and leading nVidia graphics, delivers a platform that offers flexibility and performance in a cost-effective package with solutions to benefit customers across the board.

    标签: requirements fundamental processors graphics

    上传时间: 2017-08-17

    上传用户:zhaiye

  • AVR single-chip developed by a very low threshold, as long as the computer will be able to study the

    AVR single-chip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-chip ISP download beginners line, the editing, debugging of software programs through a DIRECT line into the AVR microcontroller, which can develop AVR Series Single-chip package of a variety of devices. AVR single-chip microcomputer in the industry known as "front-line struggle to seize state power."

    标签: single-chip developed threshold the

    上传时间: 2017-09-12

    上传用户:shinesyh

  • AVR single-chip developed by a very low threshold, as long as the computer will be able to study the

    AVR single-chip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-chip ISP download beginners line, the editing, debugging of software programs through a DIRECT line into the AVR microcontroller, which can develop AVR Series Single-chip package of a variety of devices. AVR single-chip microcomputer in the industry known as "front-line struggle to seize state power."

    标签: single-chip developed threshold the

    上传时间: 2013-12-09

    上传用户:invtnewer

  • This is a comparison foundation construction of data example code, the function is quite complete, w

    This is a comparison foundation construction of data example code, the function is quite complete, was myself debugs the successful procedure, might again on Visual c++ the DIRECT movement

    标签: construction comparison foundation complete

    上传时间: 2013-12-30

    上传用户:cxl274287265

  • 频率合成技术在现代电子技术中具有重要的地位。在通信、雷达和导航等设备中

    频率合成技术在现代电子技术中具有重要的地位。在通信、雷达和导航等设备中,它可以作为干扰信号发生器;在测试设备中,可作为标准信号源,因此频率合成器被人们称为许多电子系统的“心脏”。直接数字频率合成(DDS——Digital DIRECT Frequency Synthesis)技术是一种全新的频率合成方法,是频率合成技术的一次革命。本文主要分析了DDS的基本原理及其输出频谱特点,并采用VHDL语言在FPGA上实现。对于DDS的输出频谱,一个较大的缺点是:输出杂散较大。针对这一缺点本文使用了两个方法加以解决。首先是压缩ROM查找表,

    标签: 频率合成技术 现代电子 导航 通信

    上传时间: 2017-09-28

    上传用户:大三三

  • DIRECTx 9 使用手册英文版

    DIRECT X9 tutorial1 也就是 DIRECTX 9的一个使用手册,我上传这个手册是为了让大家方便查看,如果家里电脑没有安装DIRECTX 就很难找到这种官方网站提供的教学信息

    标签: DIRECTx 9

    上传时间: 2015-03-13

    上传用户:wai_bomb

  • Matlab 画三维立体图形

    Matlab 画三维立体图形 The aim of geom3d library is to handle and visualize 3D geometric primitives such as points, lines, planes, polyhedra... It provides low-level functions for manipulating 3D geometric primitives, making easier the development of more complex geometric algorithms.      Some features of the library are:   - creation of various shapes (3D points, 3D lines, planes, polyhedra...)     through an intuitive syntax.      Ex: createPlane(p1, p2, p3) to create a plane through 3 points.     - derivation of new shapes: intersection between 2 planes, intersection between     a plane and a line, between a sphere and a line...   - functions for 3D polygons and polyhedra. Polyhedra use classical vertex-faces     arrays (face array contain indices of vertices), and support faces with any     number of vertices. Some basic models are provided (createOctaedron,     createCubeoctaedron...), as well as some computation (like faceNormal or     centroid)      - manipulation of planar transformation. Ex.:     ROT = createRotationOx(THETA);     P2  = transformPoint3d(P1, ROT);     - DIRECT drawing of shapes with specialized functions. Clipping is performed      automatically for infinite shapes such as lines or rays. Ex:     drawPoint3d([50 50 25; 20 70 10], 'ro');    % draw some points     drawLine3d([X0 Y0 Z0 DX DY DZ]);            % clip and draw straight line Some functions require the geom2d package.       Additional help is provided in geom3d/Contents.m file, as well as summary files     like 'points3d.m' or 'lines3d.m'.

    标签: Matlab 画三维立体图形

    上传时间: 2015-11-02

    上传用户:A1321

  • a sub-cell WENO reconstruction method

    We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the DIRECT derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.

    标签: 高精度格式

    上传时间: 2016-01-13

    上传用户:ccsdcczd

  • DSPACK231

    DSPack是一套使用DIRECT Show和DIRECTX技术的类和组件。含全部源码。Delphi7控件。

    标签: DSPACK 231 delphi 7

    上传时间: 2018-03-29

    上传用户:zhao9m

  • 51系列指令系统表及快速记忆法

    MCS-51使用汇编语言指令,它共有44个操作码助记符,33种功能,其操作数有#data、DIRECT、Rn、@Ri等。这里先介绍指令助记符及其相关符号的记忆方法。

    标签: 51系列 指令系统

    上传时间: 2019-05-12

    上传用户:思考决定一切