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gRAphics

publicabstractclassgRAphicsextendsObjectgRAphics类是所有图形上下文的抽象基类,允许应用程序可以在组件(已经在各种设备上实现),以及闭屏图像上,进行绘制。gRAphics对象封装了Java支持的基本呈现操作所需的状态信息。
  • 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

  • 3D gRAphics Modelling and Rendering3D计算机图形造型与渲染

    3D gRAphics Modelling and Rendering3D计算机图形造型与渲染

    标签: Rendering3D Modelling gRAphics and

    上传时间: 2017-09-03

    上传用户:ruan2570406

  • Behavioral models are used in games and computer gRAphics for realistic simulation of massive crowd

    Behavioral models are used in games and computer gRAphics for realistic simulation of massive crowds. In this paper, we present a GPU based implementation of Reynolds [1987] algorithm for simulating flocks of birds and propose an extension to consider environment self occlusion. We performed several experiments and the results showed that the proposed approach runs up to three times faster than the original algorithm when simulating high density crowds, without compromising significantly the original crowd behavior.

    标签: Behavioral simulation realistic computer

    上传时间: 2017-09-08

    上传用户:hanli8870

  • Implementation of GPU (gRAphics Processing Unit) that rendered triangle based models. Our goal was t

    Implementation of GPU (gRAphics Processing Unit) that rendered triangle based models. Our goal was to generate complex models with a movable camera. We wanted to be able to render complex images that consisted of hundreds to thousands of triangles. We wanted to apply interpolated shading on the objects, so that they appeared more smooth and realisitc, and to have a camera that orbitted around the object, which allowed us to look arond the object with a stationary light source. We chose to do this in hardware, because our initial implementation using running software on the NIOS II processor was too slow. Implementing parallelism in hardware is also easier to do than in software, which allows for more efficiency. We used Professor Land s floating point hardware, which allowed us to do calculations efficiency, which is essential to gRAphics.

    标签: Implementation Processing gRAphics rendered

    上传时间: 2014-11-22

    上传用户:shawvi

  • GPU Gems is a cool toolbox of advanced gRAphics techniques. Novice programmers and gRAphics gurus al

    GPU Gems is a cool toolbox of advanced gRAphics techniques. Novice programmers and gRAphics gurus alike will find the Gems practical, intriguing and useful.

    标签: gRAphics programmers techniques advanced

    上传时间: 2017-09-15

    上传用户:xaijhqx

  • computer gRAphics(russian language)

    computer gRAphics(russian language)

    标签: computer gRAphics language russian

    上传时间: 2013-12-12

    上传用户:songnanhua

  • 椭圆曲线密码体制中标量乘法运算的优化和FPGA实现

    信息技术的不断发展,对信息的安全提出了更高的要求.在应用公钥密码体制的时候,对密钥长度要求越来越大,处理的速度要求越来越快.而基于椭圆曲线离散对数问题的椭圆曲线密码体制,因其每比特最大的安全性,受到了越来越广泛的注意.椭圆曲线密码体制(ECC:Elliptic Curve Cryptosystem)的快速实现也成为一个关注的方面.该文按照确定有限域、选取曲线参数、划分结构模块、优化模块算法、实现模块设计,验证模块功能的顺序进行书写.为了硬件实现上的方便,设计选择了含有Ⅱ型优化正规基的伽略域GF(2191),并在该域上构造了随机的椭圆曲线.根据层次化、结构化的设计思路,将椭圆曲线上的标量乘法运算划分成两个运算层次:椭圆曲线上的运算和有限域上的运算.模块划分之后,利用自底向上的设计思路,主要针对有限域上的乘法运算进行了重要的改进,并对加法群中的标量乘运算的算法进行了分析、证明,以达到面积优化和快速执行的效果.具体设计中,采用硬件描述语言Verilog HDL,在Mentor gRAphics公司出品的FPGA Advantage平台上进行电路设计.完成了各个模块的设计输入和仿真.设计选用了Altera公司的APEX Ⅱ系列器件,利用第一方软件Quartus Ⅱ 2.2进行综合、布局、布线和时序仿真.文中给出了椭圆曲线上的点加、倍点和标量乘法模块的具体设计结构框图.并且根据椭圆曲线的标量乘特点,提出了合适的验证方案.该设计完成了椭圆曲线上的标量乘法运算.设计主要针对资源受限的应用环境:改进了有限域上的乘法运算、使用了没有预处理的标量乘算法.改进后的椭圆曲线标量乘法需要2,741,998个逻辑单元,在100MHz的时钟约束下,运行一次标量乘法运算需要567.69us.该次设计的结果可以直接用来构造椭圆曲线上的签名、验证、密钥交换等算法.

    标签: FPGA 椭圆曲线 密码体制 乘法运算

    上传时间: 2013-05-24

    上传用户:zhuo0008

  • 屏上显示模块的FPGA实现

    随着数字电视技术的飞速发展,数字机顶盒已成为现在模拟电视收看数字电视节目必不可少的设备。而数字机顶盒需要在解码后的模拟视频信号上加入屏幕显示信息(如亮度、色度、信息服务菜单等)以提供给观众良好的界面和灵活的人机交互。 v屏幕显示系统(OSG,On-Screen-gRAphics)解决了现有模拟电视无法实现的叠加屏幕显示信息的问题,提供同步输出叠加有各种图形、文字的电视节目图像的功能,其中最主要的部分是OSD(On-Screen-Display),即屏幕显示单元。OSD将叠加的位图图像分为多个OSD块,一般定义为矩形区域。每个矩形区域,例如台标、参数调节框、字幕等,都有独立的4色、16色或256色颜色查找表。同时OSG系统也支持真彩模式。OSD块经由编码/混合器与视频图像进行alpha混合后输出到电视屏幕上。 本文详细介绍了应用FPGA设计包括屏幕显示单元在内的OSG系统的思路和设计过程,描述了模块的划分与功能仿真。在论文前半部分,本文给出了图文屏幕显示系统各子单元的工作流程,接着论文的后半部分,给出了详细的模块接口说明和硬件实现。

    标签: FPGA 显示模块

    上传时间: 2013-07-27

    上传用户:万有引力

  • Precision RTL v2005b.1100

    Actel公司与Mentor gRAphics公司日前推出Mentor gRAphics的Precision RTL综合工具最新版本。该版本利用Actel基于闪存的ProASIC Plus家族FPGA产品以提供更高的设计性能。

    标签: Precision 2005 1100 RTL

    上传时间: 2013-07-28

    上传用户:cc111

  • HDL Designer Series 2010.2a win320

    Mentor gRAphics HDL Designer 工具套件,为客户带来生产力更高的设计输入、分析与管理功能,包括更强大的联机资料表格,无论设计复杂性如何,都能迅速建立高品质且结构良好的硬件描述语言。HDL Designer Series可协助工程师迅速输入和分析复杂的ASIC、FPGA和系统单芯片设计,让客户新产品于更短时间内上

    标签: Designer 2010.2 Series HDL

    上传时间: 2013-08-05

    上传用户:hustfanenze