Technically, 3 Dimensions refers to objects that are constructed on three plans (X, Y and Z). The process of creating 3D graphics can be divided into three basic phases: 3D modeling, 3D animation and 3D rendering.
Three dimensional (3D) computer graphics are widely used and they are almost too common to see anywhere, let it be movies, products designs, advertisements, etc. Although they are commonly seen, that doesn’t mean they are easily created. In order to interactively control a 3D object, it must be created in a 3D authoring tool which usually cost a lot to a non-professional user.
A 3D model is usually originated on the computer by engineer using some kind of 3d modeling tools. Creating 3D models is not easy and the software alone can cost a fortune Therefore, we thought it might be interesting to check out the availability of open source 3D modeling tools out there. Crawling from sites to sites, reading through end users comments and feedback, we bring you 25 Free 3D Modelling Applications You Should Not Miss. Full list after jump.
Like a fun cross between Lego and 8-Bit graphics with 3D Tin you assemble your model with cubes that are drawn by dragging your mouse on a grid, drawing on top of an existing cube ads another cube in height. Simple. You can also use the Extrude tool to add additional cubes in any direction, and an eraser to, you guessed it, erase and cubes…
OpenSCAD is a 3D modeling tool with a twist: it doesn’t use an interactive 3D interface for its modeling, but a scripting language.
You’ll use text commands to add basic shapes, move and scale them and apply operations to them. This may sound cumbersome, but I’ve found it’s a lot of fun to work with. Changing your model is as easy as going back to your script, editing it and hitting ‘render’. Done!
OpenSCAD uses ‘constructive solid geometric modeling’ - you’ll use operations such as ‘union’, ‘difference’ and ‘intersection’ to combine objects into new ones. And the good part is: your models are always printable! (Well, if the size and wall thickness are ok, that is).
You can load external (STL) objects in your file and work with them, so you can always do the modeling of more complex shapes in other software.
Did I mention yet that OpenSCAD it open source, and free? I’ve added a bunch of links below to get you started. Enjoy!
Thingiverse - Getting Started with OpenSCAD
Thingiverse - OpenSCAD: Modules and Loops
Edutech wiki - OpenScad beginners tutorial