Support for multiple monitors, maskable fields of view, etc. questions
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Here’s the part where it gets weird: I won’t be using digital projectors. I have a small warehouse full of CRT projectors, and six of them are the same model as usually found in a Simusphere system, VDC Marquee 9500LC Ultras. Roughly 220 pounds each, but the advantage here is that frame sync may not be needed, thus improving overall frame rate. However it means that all projector mount systems need to be rather solidly built. That’s yet another reason why the number of display channels will be limited if I even do it at all. I simply don’t have a space big enough for the full setup. I figure the complete version of the system requires a 40x40 foot space with not less than a 12 foot ceiling.
Heck, if I should win the lottery I’ll just buy it from L3.
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Even with the older CRT ones (which are being replaced with DLP ones, and I suspect that’s why you can get them cheap…ly), you need frame synch…having those in place was where I learned about the requirement in the first place.
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I’m a projector technician and have been involved in the home theater side of the projector business for years. That’s why I have so many CRT projectors,
at this moment I have 12, I expect to sell a few from time to time, and they’re my viewing choice for watching movies. The CRT image, when in its best form, still looks better to me than that of any digital projector, It looks more real. That is a subjective opinion, of course. I do not expect that everyone will have the same opinion.My understanding is that LCOS is the preferred projection technology today for military and commercial simulation. I don’t think DLP is a common simulator choice but I’m sure it is used in some sims.
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Ours was just upgraded with DLP ones…MMV. Though I could also see a point to be made about temp stability when using DLP…I may have to discuss that.
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now this is an interesting thread!
i use a tripple projector setup with fly elise and a 210° curved screen.
afaik there is no way to achieve a correct multi projection with the right fov foreach projector.
you will always get one fov for all projectors at the same time which results in a fisheye effect for the side projectors.please correct me if i am wrong.
i would be glad if there is a possibility to correct this single fov problem.this is the only thing i am jealous about dcs world.
their multi projection (multi frustum rendering) is awesome!i don’t want to sound like a dick, the bms team is doing a superb job!
multi frustum rendering would be awesome though. -
You are correct - but you can get around this with third party software that will blend the scene for you, and that’s what I’m planning to do with my 270 degree three projector setup. And running three projectors using only one graphics card gets around the frame synch issue because they are all running from the same card clock, though I’m also considering using a fourth one to gain more up look. Not sure just yet how I’m going to tackle that, but I do want more up look capability.
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There is blend, warp, and mask software available but it’s not free. I did some checking on that and am awaiting a reply from the company that provides it.
If I were to create one very large FOV window which covers all the angles I want to see, that could be sent on to this software which would be able to convert that large image to a few smaller ones that tile together, I think. I’d end up with let’s say four pentagonal tile views that would be tailored for each projector.
I’m looking at Immersaview products to do this. Hoping to hear back from them shortly.
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i am really interested in this third party software.
fly elise offers immersive diplay and immersive callibration pro which correct the picture perfectly for you desktop or sims that are able to put out multi frustum rendering.
however i didn’t find a way to “simulate” multi frustum rendering in bms.
you will end up with a high fov spanned on all projectors resulting in a fisheye effect. -
There is a limit to the FOV that BMS will provide, and it’s far below what you are asking for as far as splitting it up externally would go. Yes - third party display processor software is not free, and not cheap. The greater the complexity (read - more projectors) the greater the cost. So it’s a matter of just how deep you want to/can dig.
Here are a few that I am considering…so far:
https://fly.elise-ng.net/index.php/products
http://www.simpit.co.nz/index.php/features-2/projection-display-solutions-2/simpitwarp
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What I actually need, for a four channel video solution, is to end up with four tiled and warped pentagonal images, each of which requires not more than 1080 pixels horizontal or vertical. I could get by with less resolution, or make use of more. This could actually all fit into a full resolution 4K frame with room to spare, if I have it figured right. I know that 4.33 supports 5896x1080 and that’s plenty. If my desired FOV can be mapped into that space, and via third party the space can be manipulated and split into four separate outputs, I’m halfway home already.
Well, not really. There is no way around the fact that just building the visual system in its simplest possible incarnation would not be merely a weekend’s work, to say the least.