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Some questions about a system for FSX? (Read 3800 times)
Oct 7th, 2010 at 4:27pm

Titan_Bow   Offline
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I am piecing together a system specifically for FSX, but my son will likely want to do some gaming on it as well.  I am currently looking at using a 3Ghz i7 950, 6gbmRAM, Nvidia 460GTX 1gb, a dedicated Raptor HDD for FSX. 
  I have been toying with putting together some sort of simple small GA simpit,  something that could be easily moved and assembled/dissambled.  My question is, would FSX performance be better on one large monitor, say 36-42" or so,  or 3 individual monitors ( a 22" in the center with 2 19" on the sides).   I'd like to get the best performance I can, but at the same time maintaining a very simple setup that others could use if necessary.  Any pointers or ideas?  I see alot of simpit reference, but most of it seems to center around airliners.  I may just bite the bullet and get something like Saiteks switch panel and multi panel.
 
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Reply #1 - Oct 7th, 2010 at 11:41pm

snippyfsxer   Offline
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When you talk about "one large monitor", what kind of pixel resolution are you talking?
 
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Reply #2 - Oct 8th, 2010 at 10:48am

Titan_Bow   Offline
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I'm looking at a 42" LG that is 1920x1080.
 
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Reply #3 - Oct 8th, 2010 at 8:21pm

snippyfsxer   Offline
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Titan_Bow wrote on Oct 8th, 2010 at 10:48am:
I'm looking at a 42" LG that is 1920x1080. 


I think you should skip that.  All you are getting is "big" but you aren't achieving any higher resolution or field of view. Not to mention that you will probably spend a thousand on that component alone.

IMO, a better option would be to buy three 21 inch monitors, resolution 1680x1050 (or more) for about 150 bucks apiece.  You will achieve a resolution of 5040x1050.  That will give you a field of view of at least 90 degrees, depending upon the level of zoom you use.  There will be some fish-eye effect at the edges of your outer screens, but in practice, this is in the periphery of your vision.  A TrackIr can help out because if you turn your head to look at something you see out of the corner of your eye, it will no longer be fisheyed (because you are looking directly at it).  Kind of strange to get used to a TrackIr, but it is worth every penny, and I don't think any screen-spanning setup would be complete without it.

To run this, you have 2 options, basically.  One is the Matrox Th2go.  Depending on whether or not those monitors can easily dip below 60 hz, achieving that 5040 resolution may be hard, or not.  (I can't do it with my monitors using just the Matrox).  Overall, I think the Matrox has been a real pain, but there is now an alternative for Nvidia users.

I think a better solution is to skip the Matrox, and get yourself a second 400 series video card.  When running in SLI, you will be able to take advantage of the Surround functionality included in the latest Nvidia drivers.  You will be able to run all three of your monitors all the way up to their native resolution (if you wish), and full bezel management functionality is built in.

TH2go or not, SLI is something you should definitely think about anyway.  When you are running Mega resolutions, that extra card really helps out with the processing power required to do decent Anti Aliasing, and other texture filtering.  I have found that the difference between dual card operation vs single card operation was tangible.  Besides, if your kids are going to use the machine for other games, those games probably are specifically designed to take full advantage of SLI.  So that sounds like a win-win to me.

This system proposal could get kind of pricey.  Don't be skimpy on the memory timings, the overclock, or the cooling.  The last thing you want is to spend a couple of thousand, but be bottlenecked because you wanted to save 50 dollars here and there.
 
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Reply #4 - Oct 18th, 2010 at 4:11pm

Flight Ace   Offline
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Titan_Bow wrote on Oct 7th, 2010 at 4:27pm:
I am piecing together a system specifically for FSX, but my son will likely want to do some gaming on it as well.  I am currently looking at using a 3Ghz i7 950, 6gbmRAM, Nvidia 460GTX 1gb, a dedicated Raptor HDD for FSX. 
  I have been toying with putting together some sort of simple small GA simpit,  something that could be easily moved and assembled/dissambled.  My question is, would FSX performance be better on one large monitor, say 36-42" or so,  or 3 individual monitors ( a 22" in the center with 2 19" on the sides).   I'd like to get the best performance I can, but at the same time maintaining a very simple setup that others could use if necessary.  Any pointers or ideas?  I see alot of simpit reference, but most of it seems to center around airliners.  I may just bite the bullet and get something like Saiteks switch panel and multi panel.


I agree with snippyfsxer that a monitor the size you are proposing would be expensive. And by going to three 21 inch monitors with resolution of 1680 x 1050 would provide a better field of lateral vision. As for higher resolution I am probably wrong but I don't think so.  When you stretch the FSX configuration with special software over three monitors, a third of the presentation is absorbed by each 1680 x 1050 monitor. This of course gives you a greatly improved field of vision laterally. However, what you see in resolution is three separate monitors each displaying a resolution of 1680 x 1050. Although the total adds up to 5040 x 1050, you are only seeing 1680 x 1050.

I had thought one time that I would revert to a three monitor FSX display. But after careful consideration I realized that when one looks straight ahead without turning his head, his or her field of vision is limited laterally. To match the 3 monitor display capability, you have to turn your head, even in a real airplane. And to do this in FSX with only one monitor you use the hat switch to pan as much as 360 degrees.

Because of this I decided on one big monitor with good resolution and that turned out to be a 26 inch SAMSUNG at a resolution of 1920 x 1200. If I ever get around to building a simpit I probably will go to multiple monitors.

Good luck with your venture.
 

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Reply #5 - Oct 18th, 2010 at 11:42pm

JBaymore   Offline
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Titan_Bow wrote on Oct 7th, 2010 at 4:27pm:
I see alot of simpit reference, but most of it seems to center around airliners. 


Check down in the Homebuild section... there are a number of people doing GA or smaller planes there.  A lot of older threads have info that might be of use.

The nice thing about the triple monitor thing is that you can angle the two side ones to give a bit of a wrap around feeling. 

A lot of people have reported good luck with the triple head to go setup for performance issues; check that solution out.

best,

............john
 

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Reply #6 - Oct 19th, 2010 at 12:00am

snippyfsxer   Offline
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Flight Ace wrote on Oct 18th, 2010 at 4:11pm:
When you stretch the FSX configuration with special software over three monitors, a third of the presentation is absorbed by each 1680 x 1050 monitor. This of course gives you a greatly improved field of vision laterally. However, what you see in resolution is three separate monitors each displaying a resolution of 1680 x 1050. Although the total adds up to 5040 x 1050, you are only seeing 1680 x 1050.



I don't understand what that means that 5040 is really a stretched 1680...That isn't correct when we are talking the virtual cockpit.  You are getting 3 times the field of view, and you have 3 times the horizontal resolution.  When projecting a wide angle image into 2d, you either have to have the horizon curve like a rainbow, or you have to flatten the horizon, and get resultant "stretching".  Just like a Mercator projection map, there is distortion at the poles...same thing with the outer periphery of the 3 monitor setup.  The good news, is that all of the distortion IS in the periphery, so in practice, it isn't so bothersome.  If you have 3 screens, and you put a drape over the outer two, your center screen will display the exact same thing as every body else's single screen.  The extra two screens, are two screens more worth of visual data that the guy with the single screen does not have.  The guy with the single screen would have to zoom waaaay out to get that kind of FOV and it would look terrible, with all of the projection distortion right in front of his face, and his instruments too small to be readable.
Like JBaymore pointed out, the proper way to do this, is to have the outer screens angled in towards you at around 30 degrees.
 
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Reply #7 - Oct 19th, 2010 at 6:44pm

Flight Ace   Offline
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snippyfsxer wrote on Oct 19th, 2010 at 12:00am:
Flight Ace wrote on Oct 18th, 2010 at 4:11pm:
When you stretch the FSX configuration with special software over three monitors, a third of the presentation is absorbed by each 1680 x 1050 monitor. This of course gives you a greatly improved field of vision laterally. However, what you see in resolution is three separate monitors each displaying a resolution of 1680 x 1050. Although the total adds up to 5040 x 1050, you are only seeing 1680 x 1050.



I don't understand what that means that 5040 is really a stretched 1680...That isn't correct when we are talking the virtual cockpit.  You are getting 3 times the field of view, and you have 3 times the horizontal resolution.  When projecting a wide angle image into 2d, you either have to have the horizon curve like a rainbow, or you have to flatten the horizon, and get resultant "stretching".  Just like a Mercator projection map, there is distortion at the poles...same thing with the outer periphery of the 3 monitor setup.  The good news, is that all of the distortion IS in the periphery, so in practice, it isn't so bothersome.  If you have 3 screens, and you put a drape over the outer two, your center screen will display the exact same thing as every body else's single screen.  The extra two screens, are two screens more worth of visual data that the guy with the single screen does not have.  The guy with the single screen would have to zoom waaaay out to get that kind of FOV and it would look terrible, with all of the projection distortion right in front of his face, and his instruments too small to be readable.
Like JBaymore pointed out, the proper way to do this, is to have the outer screens angled in towards you at around 30 degrees.


In digital measurement, display resolution is measured by pixels per inch, not total number of pixels. That given, my monitor is designed to be set from 800 x 600 to 1920 x 1200 within its given size. Based on my tech spec (CPU, video card, RAM, etc.) 1920 x 1200 is recommended to get the best FSX displayed presentation and allows one to play high definition CDs. If I decided to go the 3 monitor route for FSX, I could add an identical monitor left and right and plug in a Tripplehead2go. I would end up with a great FSX system with expanded field of view and with each monitor running at their max designed resolution of 1920 x 1200. That is what I would see - no more. In your case, you are running three monitors. Check how their resolution are set. Whatever that is, that is the resolution you are seeing on your three screens.

 

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Reply #8 - Oct 19th, 2010 at 7:12pm

snippyfsxer   Offline
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Flight Ace,
Okay, I see what you are saying.  Yes, the clarity in pixels per inch will be the same or less, but of course, you will still have as much as three times as many pixels, if you have 3 screens.  I have been using the term "Resolution" to refer to total pixel dimensions, regardless of pixel density, which I think is the common usage.  You are specifically talking about pixels-per-inch, or dots-per-inch.
 
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Reply #9 - Oct 20th, 2010 at 10:52pm

Flight Ace   Offline
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snippyfsxer wrote on Oct 19th, 2010 at 7:12pm:
Flight Ace,
Okay, I see what you are saying.  Yes, the clarity in pixels per inch will be the same or less, but of course, you will still have as much as three times as many pixels, if you have 3 screens.  I have been using the term "Resolution" to refer to total pixel dimensions, regardless of pixel density, which I think is the common usage.  You are specifically talking about pixels-per-inch, or dots-per-inch.


"Having as much as three times as many pixels, if you have three screens", has no meaning. Said another way, summing the number of pixels in your three monitors does not give you your resolution. As I stated earlier, In digital measurement, display resolution is measured by pixels per inch, not total number of pixels.

My single monitor PC runs at a resolution of 1920 x 1200. Your tripple monitor PC also runs at a resolution of 1920 x 1200. Why, because that is what my monitor and your three monitors are probably (mine is) set at. That is what we both are looking at. And this is good as we both can look at high def DVDs.

Finally, You made the statement that you have been using the term "resolution" to refer to total pixel dimentions, regardless of pixel density and which you think is the common usage. You are entitled to your opinion, but I must tell you based on my past experience and the amount of research done prior to my last three posts, I did not find this to be the case.

Now the up side of our ongoing posts is that I, you, and the people reading our back and forth and I think pleasant discussions are getting information that may be useful in the future. As for downsides - there are none.
 

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Reply #10 - Oct 21st, 2010 at 12:14am

snippyfsxer   Offline
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Flight Ace wrote on Oct 20th, 2010 at 10:52pm:
Finally, You made the statement that you have been using the term "resolution" to refer to total pixel dimentions, regardless of pixel density and which you think is the common usage. You are entitled to your opinion, but I must tell you based on my past experience and the amount of research done prior to my last three posts, I did not find this to be the case.


Alright, just admit it, we are both enjoying the adversiarial, but I hope overall friendly tone...

Like I said, I understand the difference between the common, vernacular usage and the strictly technical.  Even your display driver will refer to "display resolution" as a dimension, not a density.  If you are refering to PPI, then, you specify this.  When somebody says a "display resolution of 1920x1200", everybody understands what that means.  Rare indeed is the person who says "I run FSX at 72 pixels per inch." Don't bother pointing me to the Wikipedia entry, I read it, and it acknowledges the common usage as well as the techno-purist point of view that you are insisting on.


Flight Ace wrote on Oct 20th, 2010 at 10:52pm:
"Having as much as three times as many pixels, if you have three screens", has no meaning.

Well, questions about terminology aside, it does have meaning, and here is what it means:
(You leave me no choice but to behave like a 5 year old, and assert my flight sim uber-ness  Smiley Smiley Smiley Grin)

...

...





« Last Edit: Oct 21st, 2010 at 9:53am by snippyfsxer »  
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Reply #11 - Oct 21st, 2010 at 8:27pm

Flight Ace   Offline
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snippyfsxer wrote on Oct 21st, 2010 at 12:14am:
Flight Ace wrote on Oct 20th, 2010 at 10:52pm:
Finally, You made the statement that you have been using the term "resolution" to refer to total pixel dimentions, regardless of pixel density and which you think is the common usage. You are entitled to your opinion, but I must tell you based on my past experience and the amount of research done prior to my last three posts, I did not find this to be the case.


Alright, just admit it, we are both enjoying the adversiarial, but I hope overall friendly tone...

Like I said, I understand the difference between the common, vernacular usage and the strictly technical.  Even your display driver will refer to "display resolution" as a dimension, not a density.  If you are refering to PPI, then, you specify this.  When somebody says a "display resolution of 1920x1200", everybody understands what that means.  Rare indeed is the person who says "I run FSX at 72 pixels per inch." Don't bother pointing me to the Wikipedia entry, I read it, and it acknowledges the common usage as well as the techno-purist point of view that you are insisting on.


Flight Ace wrote on Oct 20th, 2010 at 10:52pm:
"Having as much as three times as many pixels, if you have three screens", has no meaning.

Well, questions about terminology aside, it does have meaning, and here is what it means:
(You leave me no choice but to behave like a 5 year old, and assert my flight sim uber-ness  Smiley Smiley Smiley Grin)

[img]

[img]







Thank you for your screens.

My whole purpose in getting involved with this thread was and is to provide Titan_Bow some idea of the resolution as well as the difference he could expect when comparing an FSX configuration with one monitor to one with three. I don't think there is anything more to be said about the resolution. In regard to the difference in the lateral view a three monitor configuration will provide a wider field of view over that of only one monitor - this is obvious. But how much? - how do they compare?

I have provided two screens from my one monitor configeration so a comparison can be made with the two screens provided by snippyfsxer. I hope this will help in showing the difference and by how much.

www.simviation.com/phpupload/uploads/1287775261.jpg

www.simviation.com/phpupload/uploads/1287895661.jpg

« Last Edit: Oct 23rd, 2010 at 10:48am by Flight Ace »  

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Reply #12 - Oct 24th, 2010 at 10:38am

JBaymore   Offline
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Back to simple GA simpits........ basically the original question topic.....

From my point of view it is not the resolution that matters, it is the physical field of view.  I am not doing this to take screenshots... I am simming for the feeling of flying.

I use a single projector in the simpit, only at 1024 x 768...... and the immersion experience from that is immense.  I think physically bigger in the forward view is a big help in faking one into feeling it is "real".  If I could get 8,000,000,000,000 pixels across that field of view without needing to rob Fort Knox, then that would be great. 

But it is not necessary.

The framing of the windscreen in the simpit is such that I do not see the edges of the projection.  THAT makes a huge difference.

best,

.................john

PS:  I think Titan_Bow fell asleep on this thread long ago.  Wink
 

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Reply #13 - Oct 24th, 2010 at 4:02pm

snippyfsxer   Offline
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JBaymore wrote on Oct 24th, 2010 at 10:38am:
The framing of the windscreen in the simpit is such that I do not see the edges of the projection.  THAT makes a huge difference.

PS:  I think Titan_Bow fell asleep on this thread long ago.  Wink


Totally agree, (with the following agreeable clarification about my own machine).  I run far less than the native resolution of my monitors.  Field of View plus enough physical size to match that FOV, like you have, is the way to go.  I used to experiment with a single 24 inch monitor and zooming out to .40 and it looked terrible, with everything "miniatiarized", which is why I stepped up to the surround screen effect.  Now the outer monitors, which are angled at 30 degrees,  essentially fall into the realm of my actual peripheral vision, while the main forward action, on the main screen is big and beautiful.  If Titan Bow or Flight Ace can achieve that immersion, zoomed all the way out, with a single 24-46 inch monitor, than power to 'em.  I have about 6 feet of horizontal view area to spread that field of view over, and that is what makes all the difference, because at that point we are starting to approach a real world physicallity.  (a point I apparently was unable to convey in previous posts).  The three screen solution is extremely cost effective to achieve the kinds of physical dimensions we are talking about.  Projection is a whole other ballgame altogether.

BTW, JBaymore, do you have any Youtube links to your SimPit in action?  I would love to see it.  The other day I was watching a massively impressive 737 simpit, and I wondered if it was yours...
 
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Reply #14 - Oct 25th, 2010 at 2:33pm

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I know little about simpit architecture or projecting to a screen rather than using a PC monitor but anxious to learn the pros and cons. I do agree with JBaymore comments reference immursion into the flight experience but would think that a higher resolution would play a role in the overall clarity of the presentation.

And, snippyfsxer, may I ask you to please refrain from making insinuating comments about how individuals run FSX on the fly. You have no idea how I run my rig and poor Titan Bow probably doesn't know what you are talking about. In your previous posts, you included two screens from your three monitor rig insinuating that your center screen represented what I or anyone else would see on their one monitor. That prompted me to provide a couple of similar screens, and which are not zoomed all the way out, so people could properly see the difference for themselves. I only got involved answering you in the first place because in your first responce to Titan Bow, you told him that he could buy three 21 inch monitors, resolution 1680x1050 and achieve a resolution of 5040x1050. That simply was and is not true. Yes your field of vision is better than one monitor. However, In my opinion, two monitor edges or even one disecting the instrument panel when your inside the cockpit is not realistic.

I am interested in improving the FOV for my current FSX PC configuration but not sure the best way to go about it. The one thing I do know, is what a realistic cockpit on the ground and in flight should represent in the way of inside and outside views. This is based on my experience over a twenty year period as a Master Army Aviator. I have flown both as pilot and instructor pilot in all kinds of weather and in eight different fixed wing (single and multi engine)and 4 different helicopters (Utility and Cargo). If you want a thrill, climb into a Bell H13 helicopter with the doors off and take it to 10,000 feet. It's like sitting in a chair at that altitude. By the way, the Bell H13 is the two place helo (Used in MASH) with the bubble and in my opinion, gives you the best FOV of any aircraft.

Now for immursion. This is not new to me. I have designed two platforms that are attached to both arms of my computer chair which adjusts in height and reclines. My joystick and trottles sit on top attached with Velcro. And of course I have a set of pedals. All this with my computer sits in a computer room. I achieve complete immursion after dark. Since all my computer components are black, by closing the door, pulling down the shade, and turning off the light, All I see in front of me is a lighted screen with no border. Probably the least expensive simpit. Very enjoyable.

I also read your last reply to me before you removed it. What did you call me - I believe it was diabolical fiend or something like that.  Do you think I ought to change my call sign to that?

One last comment. I spend a great deal of time reviewing lots of different postings. I find it very commendable to see the number of times that you have come to the aid of individuals with your detailed comments. For what it's worth, I think we are getting closer to that same page.



Happy Holloween

Flight Ace Smiley

 

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