ok this has been bugging me for a while, and iim by no means surrounded by experts here, so.....
Im not entirely sure how to deal with shaders at a sub pixel level......
eg a record (LP), how would you go about making the micro fine grooves? A: an enormous bumpmap. B: an enormous anistopy map. C: some fancy procedural black magic.... D: non of the above you pathetic amature!
antialiasing issues aside, im just not getting the subtlety these sort of surfaces demand.... and i already have unholy sized maps...... ideas?
Plug the bump map also in the specular input! You don't need a stong bump. The specular information will strenghten the lines. The anisotropic model for specular is well advised.
Also, what you can do is use a nurbs disc and use an UV projection for your maps. Then, use only a small rectangle as image map, containing the line pattern. Repeat the texture many times. Because you use a UV projection, the line pattern will follow the shape of the disc.
Finally, for the image map itself, I suggest that you use a checkerboard with lines that goes only in one direction. Use low contrast colors.
Hope this helps Salutations - Cheers Bernard Lebel