CAS is all the manipulation of the "create a sim" tool within the game; this section covers how to edit parts of the program and its tools using different programs such as the CTU, it also outlines tools that are useful and/or vital for the tutorials. All the tutorials below have been split into specific categories.

Creation Tools

• See TS4 Modding Tools - CAS Tools

Paint Programs

• Paint.NET is one of a couple of programs that can be used to edit Sims 3 textures. Get it for free, here.
• GIMP is another - free - program that can be used to edit Sims 3 texture files. Find it here.
• Photoshop is, perhaps, the most used paint program. However, it can be very expensive. The bright-side is, a lot of schools/universities/jobs offer free or discounted versions of Photoshop to their students/employees.

DDS Plug-Ins and Converters

In order to get your textures to open in your paint program, you will need to install the proper DDS plugin for it or convert them.

• DDS plugin for GIMP MISSING - Need to find current link
• Photoshop
• Paint.NET has a built-in DDS plugin
• For converters see TS4 Modding Tools - 2D Editors and Converters

3D Modeling Programs

• 3ds MaxThis is an expensive but powerful 3D editor. It also features a free download program for students and educators.
• Blender 3D is a free 3D editor that is well supported within the Sims community. It is extremely powerful and is the most commonly used editor for making things for Sims 4.
• Milkshape 3D is not free, but not terribly expensive either. This program was popular for making things in Sims 2 and 3, and some people still use it for Sims 4.

The Glossary
For a glossed list of common CAS creation words and terms, see The Glossary

Tutorials by Category
CAS | Patterns/Walls/Floors | Objects | Building | Modding | Advanced Modding