Photorealistic Rendering AutoCAD 2018

Rendering is the process of creating a raster image based on the 3D objects in a scene

A rendered image can be created for a new model without attaching materials, placing user-defined lights, and adding a bacground.

By default, a default material is added to all 3D objects in the model and the renderer automatically uses two default distant lights when user-defined lights are not placed in a scene.

You can specify to use a single default distant light that shines from over-the-shoulder
Default lights cannot be moved or adjusted