There are lots of good textbooks and online tutorials .

还有很多很好的教科书和在线教程。

To get more tutorials like this subscribe to digital photography school .

想解更多像的教程可以去digitalphotographyschool.

It 's based on number 3 in the nehe opengl tutorials .

这一节课的内容是基于nehe的opengl教程第三课。

Their site also offers video tutorials and device-specific guides , if needed .

如果需要的话，他们的网站还提供视频教程和设备具体指导。

It is often used by companies to create tutorials or demos of their software or websites .

很多公司常利用这一功能创建有关公司软件或网站的教程或演示材料。