Apr 6, 2016
How about a lighting tutorial?
There’s a fair few that exist, and even for when you’re not searching directly for SFM. Photography tutorials such as DesignTaxi’s darkroom studio lighting tutorial (pictured above) work really well.
One that never fails when in doubt is 3-point lighting. UberMunchkin on Facepunch has a tutorial for how to do this for SFM HERE.
(You’ll notice some of Soldier’s polygons showing in his final picture. This is directly related to SSAO, MaxofS2D talks about how to handle that in this tutorial HERE.)