I started going through the textures folders and creating normal maps for files which had none, I've done tex_base, tex_nature, tex_terrain and texture_mattn so far. As I went through I also created some variations on some of the textures, the system I used was:
variations on an existing texture: a,b,c etc appended to the original texture name
Modifications to turn a non tiling texture into a tileable texture: -tile appended to the original texture name
Normal maps for existing textures and the variations: _nm appended to the original texture name
I've done 500+ normal maps so far, and I've nearly finished tex_buildings at time of writing, I'll post updates here as I churn through them. I don't really know enough about creating specular maps to feel confident doing a lot of them, but I figured even just normal maps for everything would be an improvement.
Normally I would host the files on Open Game Art, but since the licensing is not known for some of the source textures, and since hundreds of normals is not all that useful to other developers, I've gone with rapidshare for this lot, I hope thats not a problem.
Here is tex_base:
http://rapidshare.com/files/446618244/tex_base.ziphttp://rapidshare.com/files/446619457/tex_terrain.zipThe big ones are uploading and are estimated to take another 5 hours, I'll edit this post to add their addresses when they're done.
