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Hi,

Oke I'm doing this watch design and want the casings metal to be brushed stainles steel. I've applied the bump map the way the brushed metal to look but then I get these squares
on the highlighted area's. I've seen this problem before and it's hard to get rid of this effect for any render engine, if I remember correctly. But is there a way to reduce this effect or maybe
a workaround?



Thank you!

Btw it's not finished yet, C&C are welcome

This happens when you apply a very fine bump map with a (relatively) high value to a curved surface. It will show the facets in the geometry. Try lowering the bump map until you no longer see this.

aha, thank you I'll try that. Hope I can get the same look with less tiling...

What about adjusting the smoothing angle of the faces which the material is assigned to, would it help?
Does it change anything if you use a normal map instead? You still get the faceted look?

Cheers,

Chris

Oke I've set the texture with less tiling but no improvement.. also I checked the normal direction and smoothing angle and it all seems to be fine. (it's a flat surface)
I can't go any lower with the tiling because this already isn't looking like brushed stainless steel anymore



Btw the "handles" on the top and bottom of the watch are the same material as the casing, also with very high tiling but it doesn't show squares..

Any other suggestions?

Add more geometry -- the more poly subdivision you have the less "normal smoothing" will be necessary.

Alternately you can use displacement -- which will defeat the issue but may be tricky to get the look you want... see here for an example : http://www.maxwellrender.com/forum/view ... 50#p350650

Best,
Jason.

yeah - make each arc of the main circle from 10 arcs. it's a bit irritating but you'll have a very smooth circle.

That worked! I used the subdived modifier to tesselate the geometry, seems to work perfectly.



Thank you Jason!