Main > Driving & Racing Cabinets
New short throw projectors/my idea......
Howard_Casto:
I've got a feeling these VR headsets are going to flop harder than the Ouya did.... mostly because they release some sort of vr headset every few years (on the pc at least) and a handful of games are made for it or are hacked to work with it and that's about it. People keep acting like 3d goggles are a new thing.... they've been doing this since the 2600 days. Motion tracking is certainly a new addition, and if it worked I would say that would make all the difference, but all the systems I've tried lag too much when trying to detect complex movements.
Long story short 3d goggles is only one part of the puzzle. We also need full body tracking, specialized controls and if possible augmented reality to interact with the real world for things like steering wheels and what-not. Every component has to work flawlessly as well because it's really hard to trick the human body into thinking it's in another space, that's mostly why people get sick when trying the current offerings. On top of all of that it has to be cheap...or at least cheap enough to where more than a handful of niche users will actually buy it. It's a tall order to keep.
Yeah... I agree, 180 degrees is about all you need and even ignoring projectors, these new wrap-around screens would probably do the trick out of the box on most games.
jbserra:
I worked at a company that did something along these lines. It used a dome, 2 high end projectors, a servo mounted lens and head tracker. I also agree that you don't look with your head, but with your eyes. Because of this, we also used software for predicting where the eyes would be relative to the head and you would calibrate it prior to giving it a run. Worked well. There was a high resolution inset and a lower resolution peripheral view. When looking ahead, you're field of view was covered. As soon as you turned your head, the lens would follow. You could turn around and see your wing or approaching planes. When the projector industry moved to LCD, it was tough to get a good replacement projector that didn't smear horribly when in this configuration. The projectors at the time were $100k+ each based on the performance requirements.
While I'm sure prices have dropped on most of the required gear, I would expect this to be still hugely expensive.
With that said, LCDs also brought in a wave of (relatively) inexpensive projectors. Setting up more low cost projectors to cover more view was in progress before I left, however you might need special edge blending software depending on the screen configuration.
I'm going to stick with 3 monitors for now, but moving to 3 projectors would be an awesome upgrade if I had the space.
Howard_Casto:
Yeah that's about what I figured. Was it some sort or aerospace work? It's a shame about the cost of really good rigs. I think they sell projectors just for the half-domes now. They aren't cheap but they aren't completely out of reach... I was thinking 2-5k? Then again I'll bet the quality takes a huge drop compared to an industrial rig.
jbserra:
--- Quote from: Howard_Casto on September 21, 2015, 07:54:01 pm ---Yeah that's about what I figured. Was it some sort or aerospace work? It's a shame about the cost of really good rigs. I think they sell projectors just for the half-domes now. They aren't cheap but they aren't completely out of reach... I was thinking 2-5k? Then again I'll bet the quality takes a huge drop compared to an industrial rig.
--- End quote ---
F-15 simulator. I worked on the head/eye tracking portion of it.
As persistence goes up, obviously ghosting will get worse, but it's exaggerated even more when combined with a movable lens. I thought I remember hearing someone indicate the projectors were CRT addressed LCDs if that makes any sense. There was no way to go pure LCD with how horrible ghosting was back then.
You might have a chance to build the projector setup cheaper nowadays, but you would still have the costs of the servo, controller and lenses and then head tracking, software, etc. Would certainly be a fun project, but definitely not cheap or easy.
Again, I would think the multiple projector configuration is the way to go, but I'm not sure what's available for edge blending. Easiest would be flat screens with a straight seam between them. You could just barely run one image into the other and it would look mostly continuous. It gets much more complicated if you're talking a dome because your images would have to be processed for the dome curvature, the seams most likely wouldn't be straight and if they overlapped at all, you'd need an edge blending of some type.
Boomslang:
Ive actually just got a 180 degree projector screen with 2 x short throw projectors infront for my motion simulator now
Just putting it together so ill post some pics once its running, I had the Oculus Rift but over time really started disliking many aspects of it
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