Source Shaders flowgraph-based Editor

This looks extremely interesting.

https://www.youtube.com/watch?v=82AMwQGjc8Y

More info and usage instructions.
https://developer.valvesoftware.com/wiki/Category:SourceShaderEditor

Intriguing.

In other news, the devs shader work is probably already amazing, but if it isn’t I’ll cry if they don’t use this.

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.