wkhurricane的专栏

如果在asset商店里下载不了或下载失败的，可以从这里拿。 Requires Unity 4.7.1 or higher. ATTN: When upgrading from an older version, it is best to first delete the SteamVR folder in your project, and then import the package. You may also want to delete any "openvr_api" files in your Plugins folder and its subfolders before importing the new package. The SteamVR SDK allows developers to target a single interface that will work with all major virtual reality headsets from seated to room scale experiences. Additionally, it provides access to tracked controllers, chaperoning, render models for tracked devices, and includes examples for using Unity's various UI systems in VR. SteamVR's compositor allows you to preview your content in VR using Unity's play mode, while leaving the normal game window to act as your companion screen on the main monitor. Supports DX11 on Windows 7 and up (OpenGL on Mac and Linux coming soon) Requires installing the SteamVR runtime via Steam to use (under Tools).

在四元数体 口上的矩阵理论的研究中， 继共轭矩阵对角化之后， 人们自然会提出对 口 上的酉阵、 规范阵的对角化问题， 进而研究对一般四元数矩阵的特征值和特征向量问题。文 献[ 1 ] ～E S ] 就这些问题已作了前期研究。

用四元数表达三维的旋转与使用矩阵相比具有两个优点:第一 ,几何意义明确;第二 ,计算简单

谁都想做3D游戏，但是谁都知道3D编程和2D编程是不同的。 　　做2D游戏只要有一个画点函数就什么都有了。变化很少，无非就是几个alpha混来混去的，就那么些东西，经过这么多年，早就被大家玩透了。 　　但是3D不同，它复杂，需要一大堆理论知识，点、线、面、向量、矩阵、材质、贴图、灯光……