Moire patterns...

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Old 08 August 2006   #1
Moire patterns...

Hi everyone,

I'm hoping to tap a knowledge vein here...

Having a lot of problems ridding myself of some moire patterns on the attached objects (steel water features).

I've tried the usual stuff; No bump, Increased AA (even tried Max. settings!). Render large then shrink down (photoshop aa). None help.

The problem is an interesting one because these objects used to render perfectly, however they were 1.8million polys in total (there are over twenty of them) - So we remodelled them maintaining the same form factor, this time the poly total was 183,000 - And thats when the moire patterns appeared...

Just wondering if there is a solution short of removing discs.

Poly count? Moire patterns? Connection? Discuss
Ian
Attached Images
File Type: jpg moire.jpg (37.5 KB, 67 views)
 
Old 08 August 2006   #2
Maybe try turning down how much light is hitting it.

that would reduce the detail that the render is showing internally on the structure.
edit.... also, I have heard that less anti aliasing in these particular instances can help more than increasing the anti-aliasing....



Mike Fitz
www.3dartz.com
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Last edited by 3DArtZ : 08 August 2006 at 01:58 PM. Reason: one more thing
 
Old 08 August 2006   #3
Hi, Ian
Originally Posted by halfworld: Poly count? Moire patterns? Connection? Discuss
Need to see the "patient", please upload prj.
 
Old 08 August 2006   #4
I've emailed you the model.

Cheers!
Ian
 
Old 08 August 2006   #5
Hi, Ian
Originally Posted by halfworld: I've emailed you the model.
We've seen it. In our opinion there is nothing "criminal" in model and/or render. The moire is normal (and visible in real life too) if a model is a series of shutters. See no sense to use higher AA if it's "planned" by geometry
 
Old 08 August 2006   #6
If you apply a noise bump map to it, wouldn't that make the effect less obvious?
 
Old 08 August 2006   #7
No unfortunately not.

Also thanks for taking a look Igors, we will think on the problem because visually, we don't want them.

Cheers,
Ian

edit: missing words
 
Old 08 August 2006   #8
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