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[personal profile] undyingking
We went to see Coraline yesterday -- this was my first encounter with this new-fangled extra dimension, or at least my first encounter with it that didn't involve red / green glasses.

I thought it was quite impressive actually, a heap better than the old methods of rendering 3D. No idea how it works, and I came out of the show with a very stiff neck, but that might not be its fault.

I'm not sure the film really gained much from the extra dimension -- there were plenty of nice 3D effects, but mostly just for decorative purposes. I don't think you would feel cheated if you just saw it in old-style planovision.

As for Coraline itself, I enjoyed it. Not the most wonderful film ever, and plenty of things to find fault with if so motivated, but generally a fun afternoon out. Although I'm glad I wasn't accompanying an 8-year-old, as the certificate suggested -- I suspect they would have woken up with screaming nightmares for several years after. Not because the film is especially gruesome or terrifying -- it isn't -- but because its imagery and forceful plot aspects are very well chosen to key into childhood fears. Nice work!


In less good news, we've just learnt that the BNP are for the first time running candidates in our local elections. With the general mood of disgust against all politicians, they might make some headway. (One of our councillors has written a stern letter to the PM complaining about MPs letting the party down.) The Tories have been trying to make these elections into a referendum on the government, to deflect attention form their woeful record on local issues -- they may find this strategy bites them on the bum, if the BNP end up taking a chunk of their vote. But if they get representation, we will all be the losers...


Back to fun 3D things again, friend Phillip just pointed me at Photosynth, a Microsoft site that assembles your photos into a 3D view which you can navigate around. It needs you to install Silverlight (MS's Flash competitor) if you don't have it already. But worth looking at, because it really is clever at joining the images together, and the navigation interface is neat and works well. Phillip's set is here.

Date: 2009-05-11 06:30 pm (UTC)
From: [identity profile] sea-of-flame.livejournal.com
The modern 3d stuff works by each 'lens' being polarized in a different direction (so, say, the right one is polarized vertically & the left horizonally), and then the two versions of the film being projected in the same way. Makes it v diffiilt to pirate by using a camcorder in the cinema!

Date: 2009-05-12 07:40 am (UTC)
From: [identity profile] undyingking.livejournal.com
Aha, I see. That explains why looking at it without the glasses, the 3D bits just looked like a pair of displaced normal images, rather than weird in some unpredictable way.

So if you wore the glasses the wrong way round, wold the 3D effect be inverted, ie. appearing to recede into the screen rather than protrude from it?

Date: 2009-05-12 09:41 am (UTC)
From: [identity profile] smallbeasts.livejournal.com
I've heard that reversing the eyes makes viewers very uncomfortable, though I've not experienced it myself. It's an easy mistake in live 3D broadcasts to wire the camera pair back to front, causing just this problem.

Date: 2009-05-12 10:59 am (UTC)
From: [identity profile] onebyone.livejournal.com
The parallax would be reversed, so possibly yes. Parallax is proportional to distance from the viewer, which suggests that z-scale would be somewhat affected.

Except that objects would obscure other objects which parallax tells you they are behind. So I doubt it would be that simple.

And on top of what you actually see, the brain attempts to correct "unlikely" 3D scenes. Hence the optical illusion with the inside-out face.

Date: 2009-05-12 11:00 am (UTC)
From: [identity profile] onebyone.livejournal.com
Parallax is proportional to distance from the viewer

Or the opposite of that.

Date: 2009-05-12 12:49 pm (UTC)
From: [identity profile] undyingking.livejournal.com
inside-out face

Mm, good point. Sadly I can't afford to spend another £9.30(!) to watch it again with them the other way round.

Date: 2009-05-13 06:43 am (UTC)
From: [identity profile] sea-of-flame.livejournal.com
No idea - am planning to go see Coraline in 3D myself soon though, so shall experiment & report back!

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