By the procedure, we first use the cosine values of the angle between view vector and normal vector on each vertex as the texture coordinates, though calculation of the dot produce of the two vectors.
本文利用Opengl实现了一种非真实感的水墨渲染的方法,方法首先通过模型定点的视线矢量和法线矢量的点乘积计算其夹角的余弦值,然后根据计算的余弦值进行纹理映射,最后进行显示完成了水墨渲染效果。
In order to solve the issues of snapshot and online backup,this paper recommend a method which can implement snapshot by VDL(Virtual Device Layer).
针对现有NAS系统在快照及在线备份技术方面存在的问题,该文提出了一种通过虚拟设备层(VDL:VirtualDeviceLayer)实现了NAS的快照和在线备份技术。
Since the requirement for operational reliability of computer system becomes better and better, the technology of Computer Duplex working online backup is adopted diffusely in many engineering projects, the related capability such as processing data synchronization and data online backup is demanded then.
随着对系统工作可靠性的要求越来越高,双机在线热备在多个工程项目中广泛采用,继而对双机数据同步和在线数据备份也提出了相关需求,根据工程中的实际需求,针对双机数据同步和数据在线备份的解决方法做了深入的研究。
