Graphical feature requests

[joevenzon]

right now, if you want to paint your car gloss black you're mostly out of luck. you'll have to go into gimp to drop the alpha value of the misc1 texture.

might be able to do it by using the alpha mask from body00.png (in which all alpha areas are body-paint), and only applying a specular alpha value (predetermined 25% for gloss, 100% for metallic, 100% with varying rgb values for pearlcoat) to those areas. don't know how hard that would be to do though.

We already have the ability to select from a set body textures, why not just add the ability to select from a set of specular textures? The car author could make paints of different glossiness available as different specular maps.