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AutoCAD® 2008 and AutoCAD LT® 2008 Bible
book

AutoCAD® 2008 and AutoCAD LT® 2008 Bible

by Ellen Finkelstein
July 2007
Beginner
1326 pages
34h 47m
English
Wiley
Content preview from AutoCAD® 2008 and AutoCAD LT® 2008 Bible

Chapter 25. Rendering in 3D

IN THIS CHAPTER

  • Understanding rendering

  • Creating lights and scenes

  • Working with materials

  • Using backgrounds

  • Rendering your drawing

Although 3D drawings are more realistic than those that you create in 2D, they look very artificial — they lack realistic color, shading, and lighting, for example. Rendering enables you to display a 3D drawing more realistically. Some of the more advanced features let you create shadows, make objects transparent, add backgrounds, and map 2D images onto the surface of 3D models. You can shade and render 3D surfaces and solid models. Figure 25.1 shows a whimsical rendering that uses shadows and a background.

This cog has been rendered with shadows and a background of clouds.

Figure 25.1. This cog has been rendered with shadows and a background of clouds.

Note

AutoCAD LT does not offer any rendering features. This entire chapter applies only to AutoCAD.

Understanding Rendering

Rendering is a much more sophisticated means of visualizing a drawing than using visual styles. AutoCAD offers many settings that allow you to fine-tune the results.

Learning the steps

Rendering is a multi-step process. It generally requires a good deal of trial and error to get the exact results that you want. Here are the steps to render a drawing:

  1. Start with trial rendering using the default settings. The results let you know what settings need to be changed.

  2. Create lights. AutoCAD has four types of lights: default lighting, distant ...

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Publisher Resources

ISBN: 9780470120491Purchase book