Originally Posted by BIGmouthinDC
There are dome planetariums that show movies, If I were you I'd visit a few for ideas. If they can do it to your satisfaction then it is just a matter of scaling it down for residential use, Good luck on your journey.
Baton Rouge's mesmerizing star attraction—The Irene W. Pennington Planetarium— houses a 60-foot domed theater that is one of the most sophisticated multimedia presentation venues in the country. The theater presents digital movies, sky shows, and visual music shows using the most advanced visual and sound technology available. A 4K fulldome digital video projection system puts you in the center of the action, enveloped by a 5.1, 15,000-watt digital Surround Sound system.
That's the first i'm aware of offhand, i'm in the northern midwest, any suggestions of something a little closer in range like in Chicago or Minneapolis? Or is there some handy dandy list of hybrid planetarium-theaters? Else it's going to take awhile before i'm traveling far enough to see such a thing.
Thats assuming we mean normal movies anyways instead of special fulldome presentations. My thing is i'm not sure whether i'd want to show movies on the dome, or on a separate screen where it's lay back in the recliner almost all the way to watch overhead dome presentation, or look forward for the normal presentation. I'm kind of inclined to a separate screen because being reclined for all movies may be wierd or unusual, the normal day to day content i'd just expect being in front. The dome would be like the special event less commonly used setup. The dome would also work for Cinemascope type presentations which wanted a curved instead of a flat screen. (and the normal theater would be a flat screen)
Originally Posted by jautor
Don't know if it ever showed up in a product with the feature(s) exposed, but the Silicon Optix guys (now part of IDT) had a dome projection running with the HQV chip doing the processing/correction. That was six years ago, IIRC. I assume if the planetariums are doing digital projection for films now they're using a commercial product to correct for the dome. Probably not cheap, but it would put you on the right track, so that you wouldn't be limited to pre-made content already distorted for dome projection...
Is there any more information than that? Searching for that I didn't see anything related... though it's more for curiosity.
Yes there are commercial "geometry correction" software, and some free or cheap http://www.domerama.com/software/dome-projection-software/
- getting the projection is not so much the concern (this project is at least two years off, i'm hoping to nudge certain corners for a more universal geometry correction solution by then) i'm just trying to sort out the room design including acoustics issues. One reason for considering separate 'dome projection' and front home theater, is as already mentioned, normally ugly sound in domes - they tend to reflect everything to the center really bad. Though that's more with hard surfaces.
There's an astronomy program that already does geometry correction in software, intended for use with a single DLP projector and like a metal reflecting bowl of sorts. It's not full dome, but covers most of it, and allows digital star projector shows even though i'll literally be watching secondhand markets to find someones old Spitz or similar physical star projector in the future. (this is a bit of a passion of mine and there would be educational purposes for this as well/i'm hoping to let local high schools and such do field trips once I get it in whenever they want to, etc.) They turn up so rarely that it might be years more to find one though. So it will be digital star projection first.
But before it's even that I need the room designed. : P Still open for suggestions/ideas on whether a dual purpose "box theater" and overhead dome is worth trying to make the same room around or not.