3DCoat (AKA: 3D-Coat) is a digital sculpturing software (from Ukraine) that is specially designed for the art design work (i.e., details design) of game models. It not only integrates various real-time 3D model texture mapping and detail sculpture functions in one place, but also supports topology, volume sculpture, hardware rendering, and other important features. Moreover, it uses the normal mapping as window display technique, which greatly accelerates the speed to view and edit objects.

MakeHuman is a free and open-source realistic 3D human characters modeling tool for illustrations, animations, games, or Zbrush/Mudbox sculpting on Windows, Mac OS X and Linux platforms. It was developed (before version 0.9, written in only C; after version 1.0, in C and Python; from version 1.0.2, only in Python) by a community of programmers, artists, and academics with passion, who are interested in 3D modeling of characters and take contribution for a better world as its purpose.

Even the most powerful tool for modeling, if you don't know how to use, it is also useless. Most people only spend a few hours to be able to control the SketchUp expertly. Unfortunately the SketchUp Pro only provides 8 hours or 30 days of full-function free trial, its high price is daunting.

Ensure that the operating system we are using is an untouched, official version is the starting point for any Windows users to ensure their computer security. If your Windows was tampered, then all defensive measures would be unreliable and even unavailing. Hence, before installing a Windows ISO file downloaded from the Internet, you'd better use some special tools to verify its authenticity.

For outdoor sport enthusiasts, mastering some necessary knotting methods is very important (even life-critical). In daily life, if we could use knotting skill expertly, our life or work can be more convenient and easier. But it is well known that any books teaching knotting is really boring and difficult. Even with reference to some video tutorials, that is still very hard to freely and effectively learn this skill.