Home » Simpit Discussion » simpits-tech » [simpits-tech] new screen...
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| Re: [simpits-tech] new screen... [message #1955 is a reply to message #1953 ] |
Mon, 29 November 2010 03:18   |
 Gene Buckle
Messages: 1071
Registered: January 2009 |
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On Mon, 29 Nov 2010, Brian Sikkema wrote:
> On 11/29/2010 9:43 AM, Gene Buckle wrote:
>> Got a bit more work done yesterday...
>>
>> http://www.diy-cockpits.org/coll/collimated_display_page2.ht ml
>>
>> g.
>>
>>
> Looks good, Gene!
>
Thanks. Unfortunately the server fell over _again_. I think it's telling
me it's time for a new motherboard. *sigh*
> So now that you're playing with the larger wrap-around, I have to ask -
> what approach are you taking to the joins between the projected images?
> Have you found an inexpensive method of doing the edge blending, or are
> you just going to fiddle with butting the edges together?
>
Until the Nthusim guys add edge-blending to their software, it'll have to
be done entirely by hand. With the 15' screen, I overlapped the screen
edges by about 6" and then got it adjusted properly within the Nthusim
alignment grid.
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
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| Re: [simpits-tech] new screen... [message #1956 is a reply to message #1954 ] |
Mon, 29 November 2010 03:26 |
Gene Buckle
Messages: 1071
Registered: January 2009 |
Senior Member
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On Mon, 29 Nov 2010, Roy Coates wrote:
> On Sun, 28 Nov 2010, Gene Buckle wrote:
>
>> Got a bit more work done yesterday...
>>
>> http://www.diy-cockpits.org/coll/collimated_display_page2.ht ml
>>
>
>
> Quite simply outstanding, Gene :-)
>
> Love the joints - you describe them as tight - they look perfect.
>
> You obviously have far too much free time and cash to play with!!
Time I got, cash I don't. :) The parts were tight enough to require
gentle persuasion with a rubber mallet in order to get 'em together. :)
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
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| Re: [simpits-tech] new screen... [message #1958 is a reply to message #1957 ] |
Mon, 29 November 2010 03:43 |
Gene Buckle
Messages: 1071
Registered: January 2009 |
Senior Member
Administrator |
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On Mon, 29 Nov 2010, Brian Sikkema wrote:
>>> So now that you're playing with the larger wrap-around, I have to ask -
>>> what approach are you taking to the joins between the projected images?
>>> Have you found an inexpensive method of doing the edge blending, or are
>>> you just going to fiddle with butting the edges together?
>>>
>> Until the Nthusim guys add edge-blending to their software, it'll have
>> to be done entirely by hand. With the 15' screen, I overlapped the
>> screen edges by about 6" and then got it adjusted properly within the
>> Nthusim alignment grid.
>>
> Did you have much issue with the edges where you'd overlapped being too
> bright?
>
Not really. Then again, those DIY projectors I built aren't that bright
to begin with. I suspect I'll have to be a lot more precise with the new
projectors.
> I will say this, even in multi-million dollar AF sims, I've yet to see
> perfect edge-blending. But usually the rest of the display area is
> immersive enough that you quickly forget about it.
>
Which sims are you referring to? Collimated displays or the "pentagon"
screen system used for sims like the F-15?
One thing I learned a long time ago, once you get into the mechanics of
flying the airplane, you completely forget how good/bad the scene
generator is. The only time it's really important is for take-offs and
landings anyway. :)
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
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| Re: [simpits-tech] new screen... [message #1960 is a reply to message #1958 ] |
Mon, 29 November 2010 13:55 |
dabigboy
Messages: 208
Registered: September 2010 |
Senior Member |
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---- Gene Buckle <geneb@deltasoft.com> wrote:
>
> > I will say this, even in multi-million dollar AF sims, I've yet to see
> > perfect edge-blending. But usually the rest of the display area is
> > immersive enough that you quickly forget about it.
> >
> Which sims are you referring to? Collimated displays or the "pentagon"
> screen system used for sims like the F-15?
The daytime sims I recall at FlightSafety had no noticeable edges between displays, leaving me to guess at how many displays were actually running. Same for the older night sim (VITAL9, I think) although since it was night-only I could have easily missed the edge imperfections. I think VITAL9 uses some sort of lens in front of the pilots, unlike a modern projected collimated display. The newer day sims are all collimated against a spherical mirror, not unlike Gene's project, and look amazing.
Btw Gene, your screen just keepings getting better! I am anxiously following your developments. :) Once I get a bigger house, I will probably want to upgrade from my current monitor, and I have all but eliminated other options aside from some sort of genuine collimated display.
Hey Gene, quick thought for you. Have you considered going to something more advanced than even a high-end DLP or LCD projector? I'm thinking of the true-black issues we have with these systems. I was so used to my old CRT monitors that when I switched to LCD, the bright "darkness" surprised me. I suppose you would have to round up some old CRTs and rig up a fresnel lens system, basically a homemade project with a CRT instead of an LCD. Not sure how you would get the CRT bright enough though.
Matt
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| Re: [simpits-tech] new screen... [message #1961 is a reply to message #1960 ] |
Mon, 29 November 2010 10:49 |
Gene Buckle
Messages: 1071
Registered: January 2009 |
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On Mon, 29 Nov 2010, dabigboy@cox.net wrote:
>>
>>> I will say this, even in multi-million dollar AF sims, I've yet to see
>>> perfect edge-blending. But usually the rest of the display area is
>>> immersive enough that you quickly forget about it.
>>>
>> Which sims are you referring to? Collimated displays or the "pentagon"
>> screen system used for sims like the F-15?
>
> The daytime sims I recall at FlightSafety had no noticeable edges
> between displays, leaving me to guess at how many displays were actually
> running. Same for the older night sim (VITAL9, I think) although since
> it was night-only I could have easily missed the edge imperfections. I
> think VITAL9 uses some sort of lens in front of the pilots, unlike a
> modern projected collimated display. The newer day sims are all
> collimated against a spherical mirror, not unlike Gene's project, and
> look amazing.
>
The Vital II I worked with used individual displays (5 I think) along with
beam-splitter boxes and mirrors. Night-time visuals only of course.
> Btw Gene, your screen just keepings getting better! I am anxiously
> following your developments. :) Once I get a bigger house, I will
> probably want to upgrade from my current monitor, and I have all but
> eliminated other options aside from some sort of genuine collimated
> display.
>
Don't eliminate that fast - we're still in a position of not being able to
give detailed instructions on how to build one.
> Hey Gene, quick thought for you. Have you considered going to something
> more advanced than even a high-end DLP or LCD projector? I'm thinking of
> the true-black issues we have with these systems. I was so used to my
> old CRT monitors that when I switched to LCD, the bright "darkness"
> surprised me. I suppose you would have to round up some old CRTs and rig
> up a fresnel lens system, basically a homemade project with a CRT
> instead of an LCD. Not sure how you would get the CRT bright enough
> though.
The optics would likely cost me more than the projectors. Right now I'm
looking at right around $700 which when you add in the cost of a new TH2G
as well.... It makes one nauseous...
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
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| Re: [simpits-tech] new screen... [message #1962 is a reply to message #1960 ] |
Mon, 29 November 2010 14:30 |
LawnDart
Messages: 94
Registered: March 2009
Location: Seattle, WA |
Member |
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Gene, I've been following this project and what you've done is amazing.
I'm trying to figure out though, what the wood structure is that you have filled with pink s tyrofoam . What does that do? Is the image somehow projected/reflected onto the inner/outer surface?
----- Original Message -----
From: dabigboy@cox.net
To: "Simulator Cockpit Builder's List" <simpits-tech@simpits.org>
Cc: "Gene Buckle" <geneb@deltasoft.com>
Sent: Monday, November 29, 2010 1:55:34 PM
Subject: Re: [simpits-tech] new screen...
---- Gene Buckle <geneb@deltasoft.com> wrote:
>
> > I will say this, even in multi-million dollar AF sims, I've yet to see
> > perfect edge-blending. But usually the rest of the display area is
> > immersive enough that you quickly forget about it.
> >
> Which sims are you referring to? Collimated displays or the "pentagon"
> screen system used for sims like the F-15?
The daytime sims I recall at FlightSafety had no noticeable edges between displays, leaving me to guess at how many displays were actually running. Same for the older night sim (VITAL9, I think) although since it was night-only I could have easily missed the edge imperfections. I think VITAL9 uses some sort of lens in front of the pilots, unlike a modern projected collimated display. The newer day sims are all collimated against a spherical mirror, not unlike Gene's project, and look amazing.
Btw Gene, your screen just keepings getting better! I am anxiously following your developments. :) Once I get a bigger house, I will probably want to upgrade from my current monitor, and I have all but eliminated other options aside from some sort of genuine collimated display.
Hey Gene, quick thought for you. Have you considered going to something more advanced than even a high-end DLP or LCD projector? I'm thinking of the true-black issues we have with these systems. I was so used to my old CRT monitors that when I switched to LCD, the bright "darkness" surprised me. I suppose you would have to round up some old CRTs and rig up a fresnel lens system, basically a homemade project with a CRT instead of an LCD. Not sure how you would get the CRT bright enough though.
Matt
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| Re: [simpits-tech] new screen... [message #1963 is a reply to message #1962 ] |
Mon, 29 November 2010 11:13 |
Gene Buckle
Messages: 1071
Registered: January 2009 |
Senior Member
Administrator |
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On Mon, 29 Nov 2010, raysot@comcast.net wrote:
>
> Gene, I've been following this project and what you've done is amazing.
>
>
> I'm trying to figure out though, what the wood structure is that you
> have filled with pink s tyrofoam . What does that do? Is the image
> somehow projected/reflected onto the inner/outer surface?
The screen is a front-projection surface. The projector shoots right over
the top of the mirror on to the screen. You view a reflection of that
screen in the mirror.
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
_______________________________________________
Simpits-tech mailing list
Simpits-tech@simpits.org
http://www.simpits.org/mailman/listinfo/simpits-tech
To unsubscribe, please see the instructions at the bottom of the above page. Thanks!
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| Re: [simpits-tech] new screen... [message #1987 is a reply to message #1986 ] |
Tue, 07 December 2010 06:29 |
Roy Coates
Messages: 438
Registered: January 2009 |
Senior Member |
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On Tue, 7 Dec 2010, Gene Buckle wrote:
> On Tue, 7 Dec 2010, Frank Riedel wrote:
>
> > Look at this ;o)
> >
> > http://dl.dropbox.com/u/4105723/F-16simulator.pdf
> >
> > Merry Christmas every one ................
>
> That looks great Frank!
>
> I wanna know how you're doing the projection. :)
Err, me too! </AOL>
--
Roy Coates.
------------------------------------------------------------ -------------------
Lord, If I must have an instrument failure, please let it be the Hobbs meter.
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