What is 3D Modeling and Design? A Beginners Guide to 3D

A technique for producing three-dimensional objects, 3D modelling can be applied to a wide range of fields and purposes, including rendering, simulation, animation, and manufacturing. In the case of 3D printing, 3D modelling is frequently carried out using a 3D file that may be adjusted to the print’s required proportions.

Introduction to 3D modeling: How does it work?

By employing 3D modelling software, an item is created in three dimensions. Using 3D rendering or visualisation techniques, CAD modelling is visually rendered as a two-dimensional image. The following list includes a few different general categories of 3D modelling techniques.

Polygonal Modelling

In a polygonal model, a polygon mesh is created by connecting points in three-dimensional space with line segments. Planar files for polygonal meshes are those that are represented by a collection of flat facets. Curves can therefore only be roughly represented using surface subdivision with a certain resolution. Because they are lightweight and generate visualisations quickly, polygonal meshes are useful.

Curve Modelling

Another kind of modelling that creates surface geometry using curves. NURBS (nonuniform rational B-splines) are used in both parametric (based on geometric and functional relationships) and freeform curve modelling to define surface forms. The 3D modelling company designer uses weighted control points to modify the mathematical equations that drive the curves. See our section on Rhinoceros for more information on curve modelling.

Digital Sculpting

This sort of 3D modelling is very new, and it allows the user to interact with the digital model much like they would with modelling clay. To create their model, users can push, pull, pinch, or twist virtual clay. A wonderful illustration of digital sculpture is Sculptris.

Code-driven modeling

In this expanding field of modelling, geometry is produced automatically based on parameters supplied by the designer. Visit our article on Autodesk’s Dreamcatcher for more information on how this operates. This kind of modelling is ideal for 3D printing since it can produce 3D structures that cannot be produced in any other way.

What is 3D modeling used for?

All industries are now realising the full potential of 3D modelling and making the most of it, whether they are in the fields of architecture or science, mechanical engineering, fashion, or the medical sector. In fact, 3D modelling can be useful in a variety of ways.

With the help of 3D modelling software, you can design anything from a character to a landscape, complete with light effects, textures, and more, whether you’re animating for films or video games.

However, rendering and simulation using 3D modelling could be a significant advantage for your company. It helps engineers and architects plan and design their projects. For real estate applications, photorealistic renders are ideal. It will, in fact, be the ideal technique to present a project to a possible customer. The simulation will enable the testing of technical components without needing to produce them for more technical applications. Some software is so potent that it can anticipate your behaviour in specific situations.

Last but not least, production procedures now include 3D modelling, particularly with the increased usage of additive manufacturing. Undoubtedly, an STL file is necessary for 3D printing. These 3D programs will advance your production processes from quick prototyping to mass production by saving time and money and optimising your goods and procedures.

How to learn 3D modelling and is it hard to learn?

It can be challenging to learn 3D modelling on your own if you didn’t study it in school. It’s not impossible, though. You can purchase a pre-made 3D file for your projects if you don’t want to bother with 3D modelling or there are many courses available online using 3D modelling classes.

Additionally, 3D programs are available for users of any expertise level. You can find some that are quite simple and intuitive to use to begin your adventure. Even children’s versions of some applications exist.

What 3D modelling software should you use?

The applications and the industry you are working in will influence your 3D modelling software choice. Some software can be more polyvalent while other ones will be more adapted to mechanical engineering, architecture, or education, etc. 

Your level of expertise will also be one of the main factors to consider while making your choice, but it is not the only one. The budget is also an aspect you have to take into account: some software can really be expensive, and if you are not an experienced user, you should definitely consider free CAD software to begin with. 

There are many 3D modeling software programs available on the market and it might be difficult to make your choice. Here is a little selection of interesting software:


Autodesk created the well-known 3D modelling programme AutoCAD. It is a piece of software for 2D and 3D CAD that many designers see as a true standard.

To generate 3D models, this 3D programme uses 2D drafting as a foundation. Drawings created with AutoCAD are extremely accurate and precise; they are always based on numerical measurements. The creation of floor plans and blueprints is its primary use. For several industries, including architecture, engineering, construction, and mechanical or electrical engineering, Autodesk provides specific tool packages.


Meshmixer seems to be an incredibly helpful 3D program for 3D printing or even to create some new designs for your products. There are numerous 3D tools available, including features for mesh smoothing and 3D sculpting. Meshmixer is a more sophisticated 3D modelling programme.


A CAD programme called Autodesk Inventor was first created 20 years ago. Professionals engaged in mechanical and engineering projects are the target audience. Powerful 3D modelling software can create intricate models with tens of thousands of parts, like automobiles. It is dependable and sturdy and provides access to tools that can be specifically tailored.


Clay sculpting methods are incorporated into Pixologic’s professional-grade programme called ZBrush. Beginners are not advised to attempt this method because it takes many hours to finish. The similar but less complex and cost-free 3D modelling programme Sculptris is created by the same people and is a good starting point for inexperienced 3D designers.

3DS Max

Like programmes like Cinema4D, 3DS Max is perfectly suited for both professional video game developers and visual effects creators. This software, which works with Windows, is intended for seasoned 3D modelling users.


Sketchup is a well-known professional-grade software that is primarily used for architecture, interior design, or engineering projects. It has a tonne of features and a number of cutting-edge tools. You can use and reuse a sizable number of 3D designs in its open-source library for your projects.

The student or personal use of this 3D modelling programme is free! Remember that the Sketchup free version is a web-based version. Alternatives to Sketchup are also available.


A well-known computer-aided design program called Blender is a mesh-based direct modelling program, not a parametric one. Even professionals use Blender to create animation or video games. It is not really appropriate for novices, and it is pretty similar to programmes like Mudbox or ZBrush. But not just for creative purposes, this programme is fantastic! This programme has excellent software tools, including sculpting, rendering, and quick modelling, which may be applied to many different situations. As it includes CAD features to fix your meshes, this software is ideal if you need to produce 3D printable 3D models. Once parts come out of 3D printers, it is acceptable to avoid unpleasant shocks.

Here at Dezpad we pride ourselves in being a 3D modeling agency that provides the best 3D modeling services for our clients. If you are interested in creating a 3D model do not hesitate to contact us and book an appointment for your first consultation

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