Beta Hydro Screenshot and Early TF2 Screenshots found on my old PC

[Hyperion]

http://www.valvesoftware.com/publications/2008/GDC2008_StylizationWithAPurpose_TF2

Wtf was that math and functions

 

[henke37]

You mean the expression of (1/2*(n*l)+1/2)*(k[blue]+ak[d])+(1-1/2*(n*l)+1/2)*(k[yellow]+bk[d])?

That's actually the wrong way to express it. Try blend(1/2*(n*l)+1/2,k[blue]+ak[d],k[yellow]+bk[d]), much simpler once the common blend factor is scaled out and the blending converted to function form.

 

[hutty]

That math is the DNA of TF2's aesthetic.

mat_phong 0 disables most of it.

 

[Pocket]

Is there some shorthand for that formula somewhere in the material files, or was it all baked into the lightwarp?

 

[henke37]

Sure is! The shorthand is the shader name, because the formula is stored in the shader code.

Well, the one I posted is probably partially baked into the lightwrap. But the other formula, the one with max, is completely in the shader code.