custom shaders

a while back a user imgarfield from hlworld released custom phong shaders including parallax mapping pack was called extended phong shaders he released them about 4 years ago… but this is the first i heard of it and all the links are dead

what i really wanted from it was the falloff control nice feature if anyone still has it would be rly nice if u could send it or if anyone developed something like it would b nice

and for those who have no idea what im going on about a link :d