unintentional - i have screens on my windows with exterior shades (facing west, passive solar technique to reduce heat gain) and it's moiré-ing like crazy! i don't like :(

Reiser & Umemoto did a project involving the moire effect:
A competition entry for the New Museum of Contemporary Art.

The museum passed in favor of the "hell yes" sign...

hdem's rossetti pharmaceutical building has one of the more intense moire effects i've seen, screen printed glass over perforated metal:



some more on my poor excuse for a flickr page

nagaishi's work uses the moire quite a bit also, in their burberry store:





and in their louis vuitton store:





louis must like the moire thing because jun aoki's design for the store in roppongi hills does something similar with a different pattern:

also probably the best example, M3 Architects' Brisbane Girls Grammar School:

ok a couple more, i really need to complete my thoughts before i post;

Holl's Woningbouwvereniging Het Oosten


Feilden Clegg Bradley's London Centre for Nanotechnology:

loos architects


UN studio, teatro agora


h&dem's de youg

and my window:



i'm so cutting edge! right there with the big boys ..

OMA's mccormick centre has some visual trickiness that really effed with my head when the sun was shining...


h&dem, walker art center


kramm + striggl, expohaus


sanaa, new museum


david macullo


Lands Architetture, una boite moiree


wandel hofer lorch, jewish centre, muenchen


and a variation:
tivoli gardens

Hi holz,

I want your brain.

Thanks,
n_

nah, it's mostly worthless.

chipperfield, des moines library


make sure you carry that detail on down... like these sweet light fixtures


kuromata's how high the moon chair

here is that light fixture

This is an animated example of a band moire for a project that never met reality. http://www.youtube.com/watch?v=pQqFNWVbOT0 .The sister project used animation to forecast the moire effects in custom cut panels before the client purchased them. This project was built. http://www.youtube.com/watch?v=DowCvNIgZMY and it was pretty accurate to the rendering.

holz you make the rest of us look bad.

the trend for putting louvres or slats to create shadow patterns should be banned from the world. My eyes can't focus (at all) when I see the shadows, and it makes me so dizzy sometimes that I need to leave immediately. I'm not epileptic, but that's the closest sort of analogy I can make. When I see the shadow patterns, my eyes feel like they're going to explode, and I get an instant (though temporary) headache. Ack!

I'm wondering how many of these are real moire patterns and how many are just poorly compressed images of mesh.

Also, something not widely known but worth mentioning is that the moire effect can -in some cases - trigger epileptic fits so should be used with caution. As a kid I had seen it used in shops here in the UK and had to rush my mum out of the store before she collapsed.

by real do you mean mathematically correct somehow?

No...sorry. I mean real in the sense that a moire effect is actually occuring. If you take a single sheet of mesh with no moire effect and incorrectly downsample the image you can produce a moire effect in the image despite no effect existing in real life.

I dunno, the de Young museum effect is created from an image transposed (abstractly) into a perforation pattern, according to my readings of the building anyways. So I'm not sure it would qualify as an intentional interference pattern. It's actually what it looks like as far as I know.

maybe i AM epileptic. Who knew? Thanks archinect.

Just tried rendering a moire mesh in Maxwell (2"x4" Slats, one group rotated 5 deg from the other) and it crashed my Maxwell, just a heads up.

Correct on the de Young -- the only moire would be if and where the perforated copper skin might cast its own shadow on a solid surface behind the screen. . .