ynamic vertex buffers on the other hand allow us to manipulate the information inside the vertex buffer each frame if we need to. These buffers are much slower than static vertex buffers but that is the trade off for the extra functionality.

The reason we use dynamic vertex buffers with 2D rendering is because we often want to move the 2D image around the screen to different locations. A good example is a mouse pointer, it gets moved often so the vertex data that represents its position on the screen needs to change often as well.

Two extra things to note. Don't use dynamic vertex buffers unless they are absolutely called for, they are quite a bit slower than static buffers. Secondly never destroy and recreate a static vertex buffer each frame, this can completely lock the video card (which I have seen on ATI but not on Nvidia) and is far worse in overall performance when compared to using dynamic vertex buffers.

Dynamic Vertex Buffers的更多相关文章

  1. D3D12 图形编程

    D3D 11到D3D 12的重大改进 Direct3D 12 的编程模型和 Direct3D 11大相径庭.在Direct3D 12中,应用程序和硬件靠得近多了,这在以前是从未有过的. 这让D3D12 ...

  2. Dynamic Ambient Occlusion and Indirect Lighting

    This sample was presented on the Nvida witesite, which detail a new idea to calculate the ambient oc ...

  3. Unity3D Optimizing Graphics Performance for iOS

    原地址:http://blog.sina.com.cn/s/blog_72b936d801013ptr.html icense Comparisons http://unity3d.com/unity ...

  4. Generating Complex Procedural Terrains Using GPU

    前言:感慨于居然不用tesselation也可以产生这么复杂的地形,当然致命的那个关于不能有洞的缺陷还是没有办法,但是这个赶脚生成的已经足够好了,再加上其它模型估 计效果还是比较震撼的.总之好文共分享 ...

  5. PatentTips - Sprite Graphics Rendering System

    BACKGROUND This disclosure relates generally to the field of computer graphics. More particularly, b ...

  6. [译]Vulkan教程(22)创建顶点buffer

    [译]Vulkan教程(22)创建顶点buffer Vertex buffer creation 创建顶点buffer Introduction 入门 Buffers in Vulkan are re ...

  7. 剖析虚幻渲染体系（13）- RHI补充篇：现代图形API之奥义与指南

    目录 13.1 本篇概述 13.1.1 本篇内容 13.1.2 概念总览 13.1.3 现代图形API特点 13.2 设备上下文 13.2.1 启动流程 13.2.2 Device 13.2.3 Sw ...

  8. 【译】Import Changes from Direct3D 11 to Direct3D 12

    译者:林公子 出处:木木的二进制人生 转载请注明作者和出处,谢谢! 这是微软公布的Direct3D 12文档的其中一篇,此翻译留作学习记录备忘,水平有限,错漏难免,还望海涵. 原文链接是https:/ ...

  9. D3D的内存类型

    一.对D3D中AGP显存.内存.显存三种内存的解释 三种内存AGP内存(非本地显存),显存(本地内存),系统内存,其中我们都知道系统内存就是咱那内存条,那这AGP内存是个啥玩意啊?其实是因为在以前显卡 ...

随机推荐

  1. 用javascript快速清空你的人人时间轴、状态和分享

    博客已经迁移到www.imyzf.com,本站不再更新,请谅解! 现在玩人人的人越来越少了,很多人担心不玩以后东西放上面不安全..我也有同样的想法,但是手动删除上百条东西,太累了,于是写了些javas ...

  2. mcollective安装过程

    参考 http://kisspuppet.com/2013/11/10/mcollective-middleware/ http://5lexin.com/blog/view/225/mco-ping ...

  3. asp.net mvc 事务处理：Transactions

    1.在控制器里引用using System.Transactions; 2.在你需要事务回滚的地方外面套一层using (TransactionScope sc = new TransactionSc ...

  4. 自定义MVC路由配置

    首先我用MVC4新增一个订单查看的功能 1.创建控制器OrderController namespace MvcApplication3.Controllers { public class Orde ...

  5. Python 知识点

    1. generator #g is a generator and g is iterable g = (x*x for x in range(5)) for n in g: print(n) # ...

  6. I2C总线模拟（郭天祥视屏）

    电路图 思路 1.向EEPROM中通过I2C总线写入一个字节 2.通过I2C总线读出写入的字节 3.如果写入和读出成功点亮发光二极管 程序 #include <REGX51.H> #def ...

  7. ext combobox getValue

    使用combobox时,它有一个hiddenName的属性,专门用于提交combobox中value的值. 现假设某combobox的Id为comboId,hiddenName属性的值为hiddenV ...

  8. 输出排名第k的法雷级数的值；

    #include<cstdio> #include<cstring> using namespace std; int k,n; void dfs(int a,int b,in ...

  9. 一些有用的webservice

    http://developer.51cto.com/art/200908/147125.htm 下面总结了一些常用的Web Service,是平时乱逛时收集的,希望对大家有用. ========== ...

  10. UVALive 6602 Counting Lattice Squares

    给定一个n*m的网格,求面积为奇数的正方形有多少个. 首先是n*m个面积为1的,然后剩下的要么是边长为奇数,要么被这样一个奇数边长所包围. 原因如下: 对于一个边长不平行于坐标抽的正方形,其边长一定是 ...