MR –question on A&D brushed metal material

[pwharton]

I am working with the arch & design metals material in Viz and if you look at the wall at the back of the it is suppose to be brushed metal (as well as some of the other fixtures). I keep trying to tweak the tools in the materials palette get it to streak like brushed metal but all I get is this sparkle effect. Does anyone know what I am doing wrong with this material? Or is it the lighting, I am using IES lights with one if the web files that shipped with Viz in this scene

C &C welcomed

[Spooner04]

I don't use viz, so I can't comment on the viz IES lights or the viz materials specifically, but I my impression is that's not your problem.

 

I think at that distance you wouldn't be able to actually see the brush strokes on the brushed metal. I think you could achieve a better result by tweaking the specular reflection so it's not as sharp, using noise for a reflection map and maybe use an image of some brushed metal for your diffuse.

 

 

*check out vikingrange.com for some references. I believe most of their metal products are brushed surfaces. I always have to remind myself with drawing and 3d to produce what my eyes see, not what my brain knows is there. good luck, and keep posting your progress.

[Fran]

I think you need to increase the quality level of your anti-aliasing in the mr dialog. Either that or render larger (2 to 4x) and downsample to the desired output size.

[pixelperfectg]

Have you tried increasing the glossy sample settings on that material? For example: http://jeffpatton.cgsociety.org/blog/archive/2007/4/

[sstamfb]

try to increase the amount of glossiness in the reflections (materials)

[AJLynn]

Try the Interpolation setting as shown on Jeff's page.

[pwharton]

Thank you all for your responses,

Yes you are right I wouldn’t see the grain of the material at this scale/distance but you should see the effect that it produces, the “anisotropy” effect. I have been playing with the specular and have added a brushed map to several map slot and tested including the bump and Anisotropic areas, I will try the Specular slot.

Of course the one area I haven’t really played with a lot (I’m new to MR) was an area I didn’t understand “fast Glossy Interpolation”. I need to read up on this area of the material edit and read up on Jeff Patton’s web site and play with it again, I will repost my results again as soon as I can.

[Andy Park]

This may help. Its not a MR Material, but it's what I use.

[pwharton]

Thanks for the material, I'll give it a try!

[F3LIC3]

In the A&D Material you just need to decrease the anisotropy value.