https://blog.youkuaiyun.com/doctorsczh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/doctorsc/article/details/6884326https://blog.youkuaiyun.com/doctorsc/article/details/6884326doctorscTue, 18 Oct 2011 14:00:34 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6861649https://blog.youkuaiyun.com/doctorsc/article/details/6861649doctorscTue, 11 Oct 2011 10:31:27 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6859393https://blog.youkuaiyun.com/doctorsc/article/details/6859393doctorscMon, 10 Oct 2011 15:43:53 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6857856https://blog.youkuaiyun.com/doctorsc/article/details/6857856doctorscMon, 10 Oct 2011 09:36:42 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6790003https://blog.youkuaiyun.com/doctorsc/article/details/6790003doctorscMon, 19 Sep 2011 14:32:36 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6777849https://blog.youkuaiyun.com/doctorsc/article/details/6777849doctorscThu, 15 Sep 2011 13:14:54 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6777783https://blog.youkuaiyun.com/doctorsc/article/details/6777783doctorscThu, 15 Sep 2011 12:43:44 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6777376https://blog.youkuaiyun.com/doctorsc/article/details/6777376doctorscThu, 15 Sep 2011 11:00:48 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6775018https://blog.youkuaiyun.com/doctorsc/article/details/6775018doctorscWed, 14 Sep 2011 16:28:57 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6774983https://blog.youkuaiyun.com/doctorsc/article/details/6774983doctorscWed, 14 Sep 2011 16:25:36 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6774960https://blog.youkuaiyun.com/doctorsc/article/details/6774960doctorscWed, 14 Sep 2011 16:19:56 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6449802https://blog.youkuaiyun.com/doctorsc/article/details/6449802doctorscFri, 27 May 2011 12:44:00 +0800guest为ubuntu，host为win7.
首先安装增强功能，在客户机中执行CDROM中的VboxLinuxAdditions.run
完装完毕重启客户机
在未启动guest时，在virtualbox的设置，数据空间里面添加需要共享的目录。
启动guest后就可以mount共享目录了
假如共享目录名设置为files
cd /mnt
mkdir host
mount -t vboxsf files /mnt/hos]]>https://blog.youkuaiyun.com/doctorsc/article/details/6448412https://blog.youkuaiyun.com/doctorsc/article/details/6448412doctorscThu, 26 May 2011 20:25:00 +0800这几天心血来潮开始弄虚拟机，里面有一个老早以前装的ubuntu10。一直没怎么用，也不会用。这几天正好闲着，就想方设法想在linux下面调试一个程序出来。上网开始各种搜索，接触了GCC，minGW，emacs，vim，gcc-code-complete，gccsense，输入法：sunpinyin，Qt SDK，用得最多的就是终端了。这个用着感觉很高端又很蛋疼的东东。
 
昨天问了方丈一下午，关于安装sunpinyin和code complete的事情，最后木有搞定，各种编译]]>https://blog.youkuaiyun.com/doctorsc/article/details/6319153https://blog.youkuaiyun.com/doctorsc/article/details/6319153doctorscTue, 12 Apr 2011 22:11:00 +0800今天看组里一个工程的代码，里面包含3个工程，一个编译成dll，一个编译成lib，一个编译成exe。
于是心血来潮研究了一下程序的编译机制，我的目的就是想让编译出来的程序双击能够运行。
 
然后找了个qt的小程序，拿来编译一下，双击，说缺少QtCore4.dll，我也懒得一个个放进去。
google之~
 
然后发现要用release编译，编译，双击，说找不到程序入口点，后面给了QtCore4.dll的文件名字。
继续googl]]>https://blog.youkuaiyun.com/doctorsc/article/details/6288588https://blog.youkuaiyun.com/doctorsc/article/details/6288588doctorscWed, 30 Mar 2011 14:00:00 +0800第11 章 透明光照模型与环境贴图
Snell 定律与Fresnel 定律
光在真空中的速度c 与在透明介质中的速度v 之比，如公式（11-1）所示，称之为该介质的绝对折射率，简称折射率。光在真空中的折射率等于1，通常我们认为光在空气中的折射率也近视为1。
Snell 定律描述光线从一个介质传播到另一个介质时，入射角、折射角和介质折射率的关系。

需要注意：折射率和下面将要阐述的fresnel 折射系数并不是同样的东西。折射率本质上反映的是光在介]]>https://blog.youkuaiyun.com/doctorsc/article/details/6288344https://blog.youkuaiyun.com/doctorsc/article/details/6288344doctorscWed, 30 Mar 2011 12:12:00 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6287059https://blog.youkuaiyun.com/doctorsc/article/details/6287059doctorscTue, 29 Mar 2011 20:02:00 +0800https://blog.youkuaiyun.com/doctorsc/article/details/6284480https://blog.youkuaiyun.com/doctorsc/article/details/6284480doctorscMon, 28 Mar 2011 20:35:00 +0800输入/输出与语义绑定
先复习一下GPU的工作流程，第三章从GPU 运行原理和数据流程的角度阐述了顶点着色程序和片段着色程序的输入输出，即，应用程序（宿主程序）将图元信息（顶点位置、法向量、纹理坐标等）传递给顶点着色程序；顶点着色程序基于图元信息进行坐标空间转换，运算得到的数据传递到片段着色程序中；片段着色程序还可以接受从应用程序中传递的纹理信息，将这些信息综合起来计算每个片段的颜色值，最后将这些颜色值输送到帧缓冲区（或颜色缓冲区）中。
这一章节中，我们将讲解Cg语言通过何种机]]>https://blog.youkuaiyun.com/doctorsc/article/details/6281288https://blog.youkuaiyun.com/doctorsc/article/details/6281288doctorscSun, 27 Mar 2011 12:02:00 +0800Cg 支持7 种基本的数据类型：
1. float，32 位浮点数据，一个符号位。浮点数据类型被所有的profile 支持（但是DirectX8 pixel profiles 在一些操作中降低了浮点数的精度和范围）；
2. half，16 为浮点数据；
3. int，32 位整形数据，有些profile 会将int 类型作为float 类型使用；
4. fixed，12 位定点数，被所有的fragment profiles 所支持；
5. boo]]>https://blog.youkuaiyun.com/doctorsc/article/details/6278760https://blog.youkuaiyun.com/doctorsc/article/details/6278760doctorscFri, 25 Mar 2011 21:13:00 +0800