Anisotropic Compact Disc Shader

Support Materials and Textures
1

Hi everyone, i´m new in the forum and this my very first post. So sorry for my question and my poor english, i´m from spain.

I´m trying to do some materials and one of these is an Anisotropic shader like in a compact disc.
All i want to khow is this is the correct way or not. It look fine but… what do you think? Thanks

anisotropic cd shader.JPG1919×1037 240 KB

My material consist in 3 anisotropic bsdf with the 3 primary color(R,G,B) with diferent anisotropic values.
My anisotropic shader is compared with a simple anisotrpic to view differences, in my cd shader i add some bump but in the image the strenght is set to 0, and the mix factor for final mix with a glossy is set to 0 too.

2

Looks pretty good. It could do with some sharp anisotropic reflections to make it even more realistic.

3

Eugenio,

I would like moony stated also add another reflection material.

the disk is made out of the reflection on the metal and then also on the plastic shell.

You can layer two different aniso shaders one being blurred and wide and one on top being sharper with a mix shader.

4

I believe you need to run the ‘Tangent’ node into your Anisotropic tangent input, like this photo on AP’s site:

http://www.blenderguru.com/wp-content/uploads/2012/12/9.png

5

Thanks Moony and Cekuhnen, i will try and post result.

Floridajo, the tangent inpput with UVmap selected is for lineal anisotropic not radial but if i am wrong please correct me.

6

Ah, right you are.

As for the shot, needs some work still. Maybe add a glass shader in there.
Here’s a real shot: http://upload.wikimedia.org/wikipedia/commons/a/a2/Dvd_cd_disk.jpg

7

Hi @Eugenio, I like your cd material a lot. How do you calculate normals for Anisotropic nodes?

Hola Eugenio, me ha gustado mucho tu material para cd. ¿Nos podrías contar como has calculado las normales en los nodos Anisotropic? Me refiero a ese grupo de nodos con parámetros distancia, fuerza, …