As the unsolicited, ongoing, texture experiment continue. I took the RAL colors into Photoshop, and added both a dirt layer and a light rust layer. All textures are 4096's.
https://www.dropbox.com/s/376oi2xwe0...est01.jpg?dl=0
Because of the process, the rust and dirt result needs to be adjusted for each color. I will have too look at them again, though reflection and bump will hide some of the rust and dirt. Comments are welcome.
I tried to approximate the level of grunge that exists in the current texures, but perhaps they should be just a bit cleaner.
All the textures would need to be gamma-adjusted for the game-engine.
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The plan is to:
Make a decent orange-peel layer.
Recreate a better brush-mark layer.
Merge rust into a bumpmap so that the rust is faintly bumpmapped.
Export the rust so that it can be used to make a specular map, as the rust should be more matte. Perhaps I can get Awesomebump to do this, but it really needs to be tested in the engine.
I am aiming for a lot of orange peel, with some brushstrokes but less apparent than before. Looking closer rust should be visible/detectable, but not apparent. I want the player to see color first, dirt, later, and rust still later.