Convexer

Convexer is a mapping tool for Source using blender. It has a free Linux/GNU Version and a paid Windows version available for $30 USD via paypal located on the website.

Warning:Paypal Offers refunds for 180 days after purchase, We are not responsible for your money, A good alternative is XYZXYZXYZ

The instructions to build from source are located here

Note:I will add more info in a little bit