Quote from Shotglass :

well yes that would be another way of doing it
but i suspect via dx dlls that postprocess the image you might be able to get the correct mapping even from a flat projection rendering

i was thinking more in terms of 6 projectors 2 th2gos and polarization filters

A flat rendering will never be perfect as the image needs to be distorted to get proper 180d FOV, but this is very close when there in real life.

you have to understand that the video shot with a fisheye is still viewed on a flat screen so still distorted when viewed.

here is a couple of screen shots with image distortion turned on, these are perfect when viewed on our dome for flight sims





the images are upside down as we turn the projector back to front for flight sim to get the view on the 'top' of the dome.

The problem with more than one projector if you have never set them up is edge blending, colour matching and general positioning and most of all cost. there are more lamps to replace and have to fixed extremely acuratly.

thanks for the comments though

Quote from frokki :

Sorry, but it still looks very weird and distorted. I hope it's only a software issue.

please see above, this is only a concept so far with regards to driving sims. but as stated above we already implement this software for flight sims and also other military applications.

thanks

http://www.youtube.com/watch?v=_-_TPrUWXK4

heres the better vid

prices are not know yet but will not be cheap for a little while yet.

we have fixed these systems to motion platforms in the past for flight sims, usually with laregr 4 or 5 metre domes though.

more pics tomorrow hopefully

keep the comments coming

Quote from Shotglass :

and therein lies the problem
that way you have streched sides which should not be streched
what you would need to do is compress the picture to the sides to get the correct aspect ratio on all points of the screen

what needs doing is 4 views are actually shot from virtual camera's and then rendered as 1 channel to output to the projector. this pre-distortes the image allowing 180x135 FOV distortion free. i will try and dig out some screenshots of our flight sim app with distortion correction applied.

It is quite amazing when workign 100% to get this effect from a single channel. It makes the game play much more immersive as you can see cars pulling up alongside when tring to outbrake you!

i have another youtube vid uploading now which may show more.

thanks for the comments so far

Quote from Shotglass :

hm you should work on the transformation you use to map it on the sphere ... if im not mistaken if you do it correctly things shouldnt strech to the sides

The spherical distortion is currently being worked on, we already use this technology for flight sim's. We have a free API which allows for undistorted images. Once again this is just a mockup for trials.

The effect is actually a lot better when sat in the drivers seat than on the video as i am sat inside a dome screeen.

The projector has a special omnifocus lens which evenly distrubtes the pixels around the screen 180deg H and 135 deg V. This current projector is only working at 1024x7678 but coming soon are hopefulyl our HD projectors with same lens technology.

have a look at our website www.immersivedisplay.co.uk or our forum if you have any other technical questions

PS. i'm currently working on a couple of other vids with a fisheye lens on fo r youtube in the next few hours , keep posted

thanks

what do you reckon to this

http://www.youtube.com/watch?v=eH9eUHC-8K0

ANd now this too

it is only a mockup of a system i'm working on but allows in the future up to 180 deg FOV excellent for close racing and those close braking passes.

Last edited by nthorpey, Wed, 18 Jul 2007 08:22. Reason : added links

thanks for the answers,

i have a projector and lens to display 180deg.

www.immersivedisplay.co.uk

Just trying to get the best display possible form this game.

thanks for the quick reply.

I havent got the game in front of me at the moment.

Looking at running 180deg is poss. as we're going to run it on a 180 dome projector. will try 120 deg tomorrow and let you all know how we get on.

Can anyone force it to 180 deg?

nick

Could someone let me know how to change the field of view in the game?

I need to know how and also what are the maximum values?

Looking to run 180deg FOV on projector system.

Many thanks

Nick