Instructions on how to project 2 images on 2 different sides of many objects. Instructions to control the camera move in an ...

Netflix releases the first trailer for season four of "The Witcher". It shows Liam Hemsworth for the first time as the new Geralt. The release date has also been announced.

做机器人逆运动学（IK）的时候，你迟早会遇到矩阵指数和对数这些东西。为什么呢？因为计算三维旋转的误差，不能简单地用欧氏距离那一套，那只对位置有效。旋转得用另一套方法——你需要算两个旋转矩阵之间的差异，这就涉及到矩阵对数了。