2012

Rendering a selection set of objects is very efficient when testing different
materials, especially when the materials include texture mapping. By rendering
a selected object, you can quickly verify how the material looks and if its
texture coordinates must be altered.
Render a Cropped Region
Sometimes you need to render only a portion of what is displayed in the
viewport but you still want to see some of the surrounding environment.
In the following example, only the region surrounding the third bottle and
the wine glass is rendered.
By setting the rendering procedure to Crop, you can specify a smaller region
of the viewport to be rendered. Similar to selecting objects by window, you
can set a rectangular region in the viewport. Any objects that appear in the
region are rendered. Everything outside the region is ignored by the renderer.
NOTE A cropped rendering only displays in the viewport. Use the REGEN command
to refresh the display.
2260 | Chapter 46 Render 3D Objects for Realism