Like to see how Pixar does it?

Pixar’s Tony DeRose Explains The Math Behind Animation

Moved to “Technology and Gaming” as this doesn’t have to do with the mod.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.