AutoCAD 3D Modeling: Rendering Types
February 3, 2004 Rendering is the process in which you can
create eye-catching images through 3D models. The result of
rendering is a raster image that can show the effect of lights,
background, fog, landscape, shadows, materials, etc. AutoCAD
Render dialog box offers three rendering types by default.
Depending on the rendering type the resulting image would be
different. The following tutorial shows you the effect of
applying different rendering types on a typical 3D image. To
apply a render type you need to invoke the RENDER command. You
can invoke this command through the Render toolbar [Figure 1].
Figure 1
Note: This tutorial is designed for AutoCAD 2004 though might be
applicable to other releases.
1. Download and
then open
r16_render_type.dwg. The file consists of a simple 3D scene
in Perspective projection view [Figure 2].
Note:
If you are using AutoCAD 2002 or an earlier release download
r15_render_type.dwg.
Figure 2 - Click on image to enlarge
2. Invoke the
RENDER command (select View > Render > Render). The Render
dialog box appears [Figure 3].
Figure 3
3. Open the
Rendering Type drop down list. The list consists of three
options as follows [Figure 4].
Render: Renders the scene
without the effect of shadows and/or the reflection and
refraction of the light. The materials are also not shown
properly. This method is the fastest amongst the other methods.
Photo Real: Renders the
scene with the effect of shadows and materials. You can create
photorealistic images in a rather reasonable speed with this
method.
Photo Raytrace: Renders the
scene with the effect of shadows, materials, reflection of light
and refraction of light. This is the most photorealistic method
amongst the other rendering types.
Figure 4
4. From the
Rendering Type list select Render. Click the Render button. The
following image appears in the drawing area [Figure 5].
Figure 5 - Click on image to enlarge
5. From the
Rendering Type list select Photo Real. Click the Render button.
The following image appears in the drawing area [Figure 6].
Figure 6 - Click on image to enlarge
6. From the
Rendering Type list select Raytrace. Click the Render button.
The following image appears in the drawing area [Figure 7].
Figure 7 - Click on image to enlarge
7. Regenerate
the drawing to see the original objects (select View > Regen).
Alireza Parsai is the founder of cadpanel.com. He is a
mechanical engineer with more than 12 years experience with
AutoCAD. Alireza is an Autodesk Authorized Author, the AutoCAD
consultant for Al Khawarizmi Institute, a contributing editor
for Augiworld magazine, a writer for CAD Digest, and an
instructor for AUGI Training Program. He has written 8 books in
Farsi, 3 booklets in English, and more than 100 articles for
different magazines and newsletters. You can reach Alireza at
alireza.parsai@cadpanel.com or visit his website
www.cadpanel.com .
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