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The term "3D modelling" describes the process of creating
three-dimensional virtual objects using computing technology. In
essence, a user engaged in 3D modelling sculpts objects on-screen using
a mouse and keyboard as hammer and chisel, and software tools called
NURBS, splines, polygons, and metaballs as the raw material of the
sculpture.
This process is extremely important in professional fields like
industrial, automotive, or architectural design, where 3D models often
serve as prototypes for real-world products like chairs, vehicles, and
buildings. In other situations, such as in some scientific
applications, 3D models must be completely accurate replicas of
existing physical objects. Data for these kinds of models can be
obtained from 3D-imaging technologies ranging from photogrammetry to 3D
scanners.
Models can be extremely complex and detailed, depending on the amount
of data (and work) that goes into them. They can be made more realistic
using techniques known as rendering and texturing, which add lighting
effects and surface detail. In industrial settings, these techniques
are used primarily to better illustrate what the real-world products
will ultimately look like. In fields like computer animation, however,
where virtual objects themselves are the final products, rendering and
texturing become more important.
As a final introductory note, newcomers to 3D modelling should be aware
that many different file formats are used by modelling software
packages. However, models intended for 3D printing with AICT should be
converted to either the STL or VRML file formats. Please note that
those wishing their models printed in colour must convert their files
to VRML.
To continue through the AICT 3D modelling pages, navigate using the
sidebar menu to the right. These pages will introduce you to many
important tools and concepts of 3D modelling, and include a walkthrough
of the modelling process to help you begin creating models of your own.
Related local links:
If you have questions, comments or suggestions about our 3D modelling
pages, please write to research.support@ualberta.ca.
Revised: January 6, 2010
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3D
Modelling Help Pages
Introduction
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Definitions
General Modelling
Methods
An Example:
Modeling a Guitar
