Book Image

Autodesk AutoCAD 2013 Practical 3D Drafting and Design

Book Image

Autodesk AutoCAD 2013 Practical 3D Drafting and Design


Overview of this book

AutoCAD is a computer-aided design (CAD) and drafting software application. AutoCAD supports both 2D and 3D formats. AutoCAD is used in a range of industries and is utilized by architects, project managers, and engineers, among others."Autodesk AutoCAD 2013 Practical 3D Drafting and Design" will take you beyond the 2D frontier and help you create accurate 3D models that simulate reality. This book is crammed full of creative and practical tutorials which will help you master the third dimension. From exercises on coordinate systems to creating solids and surfaces from 2D, you will wonder how you ever designed without this resource by your side."Autodesk AutoCAD 2013 Practical 3D Drafting and Design" is full of hands-on studies and projects that will help develop your 3D skills. Starting from the assumption of only a very basic knowledge of AutoCAD, this book will help you master 3D visualization and coordinate systems, create 3D models from 2D drawings, and from basic shapes, measure volumes, and other information, obtain 2D construction drawings from 3D models as well as how to apply lights and materials to get photorealistic images.
Table of Contents (20 chapters)
Autodesk AutoCAD 2013 Practical 3D Drafting and Design
About the Author
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Rendering concepts and commands

We present all rendering concepts and commands to obtain photorealistic images from our 3D model.

General concepts

A fundamental output in all 3D models is the creation of photorealistic images, which represent how the model will look after building or fabricating it. A render is, thus, an image, which is defined in horizontal and vertical pixels obtained from a 3D model, where AutoCAD calculates the visible faces and all lighting in the scene and eventually includes indirect lighting, applied materials, and some effects such as background.

After creating the 3D scene with all commands and methods already seen, a typical rendering workflow is as follows:

  1. Apply the camera's simulating user location, point to look at (target), and perspective defining what we want to show.

  2. Apply the lighting conditions. For exterior scenes or interior scenes where outside light is important, light due to the Sun and the sky may be considered. For artificial lights, we apply point...