How to make specular maps

zenarion

So tell me, what are your ways?
I just draw it as a new layer over the diffuse map or the UVW template with the colors i need.

MoP

I usually work in layers based on material type for my diffuse maps (ie. Iron, Aluminium, Wood, Rubber, etc. on different layers), so for my specular I just duplicate the diffuse layer sets and hue/sat/brightness/contrast shift them to get approximate base values, then paint highlights on edges or areas of interest, and generally fix up values where they were incorrect.

Rick Stirling

I also tend to render noise or clouds on my spec maps (when they have large areas of a single material). This breaks up the surface a little.

diZzyWalnut

http://www.mapping-tutorials.de/forum/showthread.php?t=165

Eric Chadwick

Did you check the sticky?
specular maps and normal maps
I learned a lot from it.

Also some good info in here...
SciFi Support Beam

zenarion

Thank you, thank you very much