Originally Posted by HystericalParoxysm
Don't draw the alpha channel. Draw the hair on a new layer, and base your alpha channel on the hair.
Thanks: 940 in 16 Posts
Originally Posted by MarkJS
I think what HP meant was to use the hair you are basing on to make the alpha.
For example, take the picture into photoshop, and draw around the edges, or play with the picture light levels so you build the alpha directly from there.
Particularly I prefer to make the alphas by drawing, my tablet is broken so it's hard to make it properly.
Many 3D artists draw alphas using strategical tweaked brushes so it helps a lot.
Instead of using a hair brush, there are many available at DevianArt if you want to take a look, I prefer to use just simple spots (1px) and apply settings to multiply them.
I think Photoshop comes with some presets you can use.
If you are interested, there are tools that allow you to build amazing alphas, made specially for 3D artists, with a lot of maneuver of brushes.
I refer to Autodesk Maya, they have a big collection of brushes you can use.
I had a really good tutorial bookmarked somewhere around here, but this thing is a mess atm.
Hope it helped though.