Firstly, the environment is discretized into environment map.

该方法首先将虚拟环境离散化成为环境图；

youdao

It is a good idea to blur the environment map to simulate the blurriness of a reflection.

它采用模糊环境的方式来模拟反射模糊。

youdao

Using the Settings above, the background of your perspective viewport will show the LDR environment map.

使用上图的设置，透视图中的背景将显示环境图片。

youdao

To map the 3D environment of a desk or any tabletop, Clark and his colleagues used a Microsoft Kinect that looks down at the desk from above.

MSN: Virtual Reality Spiders Crawl Toward Phobia Treatment

Most mobile robots do this using a technique called SLAM (simultaneous localisation and mapping), whereby they build up a map of their unknown environment, using various sensors, whilst keeping track of their current position at the same time.

BBC: NEWS | Technology | 'Guessing' robots find their way

The Environment Agency has published a live floods map.

BBC: Nine rescued in Herefordshire and Worcestershire floods