anisotropic shader

harry_the_cat · Talkative Joined: 28 Sep 2005 Posts: 49

I had hoped the 'brushed aluminium' shader would give me an anisotropic look, but although it mimics this - the highlight and colour look right - you don't get any anisotropic-ness. Can Mantra achieve this, I don't seem to be able to locate a ramp UV which maya uses to make this kind of shader.

Any suggestions?

berija · Lurker Joined: 17 Jul 2007 Posts: 3

I make anisotropic reflections using ashikhmin function in PBR. Sample vfl file can be found at odforce.net.

Hope it helps
R.

moonlightkiss · Posted: Thu Jun 18, 2009 5:21 pm GMT Post subject:

If you dive inside the shader, you will find a VOP network. You can create a ramp parameter and then link it to the S or T value.

DaJuice · Posted: Thu Jun 18, 2009 6:45 pm GMT Post subject:

I haven't tried using ramps like moonlightkiss suggested, but you can also get good-looking results if your UVs are laid out properly (with regards to the "grain" of the surface). If you render with PBR you get nice anisotropic reflections as well, rather than just highlights. :] This shader here is basically a Specular VOP set to anisotropic and using the UVs.