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Guest bobsk8

No Stutters....EXCEPT ..........

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...when I change views. I really have smooth flying in 2D cockpit, VC, Spot, and Active Camera Fly By. Everything stops, stutters, adjusts, and resumes for about 4 seconds or so when I change views. My "re-draws" of plane texture and scenery texture take seemingly forever. Are any of you experiencing the same thing? I'm using a Dell 2.8 gig, 1024 of Ram, NVidia 6800 GT OC at 256 video Ram (latest drivers), and I wonder why the serious hesitation when I change views. What should I adjust my texture bandwidth to, or my video card settings? I've tried many different settings. Do any of you have the magic setting?Any thoughts or suggestions? I would certainly appreciate your experienced opinions.

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Lol, was contemplating the same thing just this very minute. Having similar problems with PMDG's new Beechcraft1900c. Smooth flying all the way, except when I change views - then it's stuttering for about 3-5 seconds. ricardo

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Have you tried rolling back your drivers one notch? I loaded the latest Nvidia drivers for my 6800 GT a couple of weeks ago, and they were not good. Rolled back to the orginals ( which is easy to do in XP, if you have it) and everything went back to normal.

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No it's not the drivers. The problem comes from the fact that a lot of designer's are using these massive 32 bit files for their textures and it's degrading visual performance. You can convert textures to the "lighter" DXT3 textures and that helps a lot, but it is a lengthy and tedious process. Some painters offer DXT3 textures to begin with and some outfits thankfully, like Dreamfleet and LDS offer the option of one or the other.Lee

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I dont know about that Lee, I have a similar rig, same video card, current WHQL drivers, and I don't have this sort of issue with the B1900D or even more complex birds. Havent' done any converting to DXT3.Noel

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I too am having this problem with my add-on planes.The only add-on that does not exhibit this problem (at least for me) is the IFDG A3X series.POSKYs 767-300 & the PMDG NG737s wing & engine textures take about 3-4 seconds to load if I select a wingview.... :(But - I find the problem vanishes if water-detail is set to "low"...is it the same for you guys? But then who wants to fly with low water-detail!?Perhaps more RAM will do the trick?....

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to regulary Defrag your harddisk is also a good option and be sure that your memory managment is optimized for programs and NOT for system- cache. this is done in your system managment console under WinXP. i don

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I have basically the same PC with all the original textures except clouds, and I get no stuttering at all. I did, when I upgraded drivers, until I rolled them back.

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Two significant magic bullets for me were the addition of more RAM (I now have a 2 GB machine) plus a very effective utility called FSAutoStart created by Avsim's own Ken Salter (moderator of this forum). His utility will gracefully shut down WinXP services and other programs you select, defrag the remaining RAM, and then start FS2004 followed by any other add-ons you normally run with the sim. This incredible little utility has really made a huge improvement in performance and I suggest you download it and give it a try. DougDell XPS Gen3 (3.6GHz/800FSB)2GB DDR SDRAM74GB SATA, 10k RPM (C: ) & 120GB SATA (D: )256MB ATI Radeon X800 XT (Catalyst 5.3)Audigy 2 ZS SoundMS Force Feedback 2WindowsXP Pro (SP2)DirectX 9.0c

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I guess there are two major issues here:1. where you installed FS9 and2. how much memory your graphics card is actually using for FS9 textures.You seem to be aware of the possibility to make your grphics card work more efficiently with FS9, so I'll just say I use a bandwidth setting of between 250-400 (still experimenting with that one).If you have installed FS9 on the same partition as your windows drive, that will also cause soem stuttering.I'm running on a AMD 2200+ with 512mb memory and a Radeon 9600 128mb and it seems even people with monster machines have about the same amount of stuttering as I do (which is a comfort, lol).Somebody mentioned that the problem seemed to disappear when he set water textures to "low", and I suspect it's once more an issue with the graphics card memory: low water textures=more memory for aircraft textures.

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Thanks for all the suggestions. I did roll back the driver...not much difference. I tried turning down the water quality, and again, I didn't see much difference. The FSstart program looks interesting...but complicated. I don't mind trying it as long as I don't screw up anything on the computer. Perhaps I'll try that this afternoon. It does look like the most promising solution. I didn't thing that going beyond 1 gig of Ram had any significant difference! At least that's what I read some time ago. It certainly will be interesting to see how Microsoft handles the "Fluidity Factor", as I call it, in FS2006.In my opinion, and I hope yours, I'll shout out to Microsoft....GIVE US A HIGH FLUIDITY FACTOR AND YOUR PROMISE OF "AS REAL AS IT GETS" WILL BE MUCH CLOSER TO THE TRUTH.

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I still say it's the textures themselves. Take a plane like the LDS 767 and create a DXT3 version and a 32 bit version of the same livery, they have both available. Then alternate between the two in the same situation. You'll see the difference in performance.Lee

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stan,another solution is to change the type of your sound acceleration within directx. By default it is set to full acceleration. Changing this to standard or basic acceleration will take alot of load from your cpu. I think you have an buildin soundchip on your mainboard and this chip doesn

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In the hardware forum, there is a thread on "texture lag" upon which I gave my opinion as to why this occurs.In a nutshell, the condition is this: whenever you change your view, the sim must go to the hard drive for the textures. There is no pre-caching available as this all takes place in real time when the user performs the switch. The sim must wait for the texture data and then resolve it to the graphics hardware. This all takes time resulting in the "stutter". The only real help for this is a fast hard disk and smaller textures data, as has been suggested. Even with a super fast hard drive, you will still see this "burp" on certain aircraft.The reasons are complex and have to do with memory management within the sim. You can prove that this is caused by aircraft textures being loaded by simply watching your hard drive access light and switching views. If you hit the "w" key (I think it is; I've mapped mine to hardware switches) to remove the cockpit panel and then do the same, the hard disk is not accessed as there are no aircraft textures to display. This does not necessarily hold true in the VC cockpit as that uses different code and algoritms for managing internal memory.Larry S.

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Assuming this to be true, when the sim (as with any other program) reads data from disk, the data will be stored in cache for some time. I would think that since the textures used for land are not varied much, that this data would stay in RAM cache and not needed from the hard disk. Therefore, the more RAM you have, the larger the memory cache and the more data that the sim can get from cache than hard disk. Same should hold true for aircraft textures.So maybe if you cycle through the views when you start, to get the texture into cache, then you won't have as much of a problem later. This assumes you have enough RAM so that the OS doesn't have to page out to the swap file on the hard disk.

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Hi Ken,Ideally, this would be true but it appears to be not the case here. I'm assuming that this area of the code is from earlier versions of the sim and was originally written to provide for operation with small memories.I ran several tests on this topic, using the Real Air Scout, as this aircraft demonstrated the condition pretty clearly. Flying a straight course and then switching to the various side views, each time the sim went to the hard drive for the data. I'm running a fast AMD64 3400 processor with 1 Gb RAM. Even when switching quickly from forward to side, the disk was accessed. I concluded that the sim released the texture memory when the forward view resumed, thereby requireing new accesses each time.Try it for yourself and let us know what you see. Be sure to shut off other stuff like AI aircraft and dynamic wx first.Larry S.P.S. You can also use the Windows XP Pro performance monitor to see just how much data is being transferred.

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It is possible in the Win32 API to designate memory allocation as not allowed to be paged, etc. So, especially with your tests, this may be what is going on internally in the sim.Maybe with the next version (assuming there is one), the programmers will take a new look at this given the kind of computers that your average person now owns.

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larry,i cannot reproduce your example. using the rfp 747 with as2004 etc, once the textures are loaded into the cache, i can switch forward backward, vc, spotview etc, the texture are not loaded from harddisk, they stay on cache. do u have large system cache enabled? are u on nfts or fat32? do u have "ntfs last access update" enabled or disabled? did u defrag your harddisk? As i said when switching between the views the harddisk light is not flashing on my system, so there must be something wrong with your configuration, on my system the textures stay in cache.ron

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Hi Ken Again,I agree! I was a professional software developer for 37 years before I retired; especially proficient with the Windows API and Foundation class. I've been sitting here thinking that, the API did provide for cahing/no caching option but I couldn't remember exactly or thought I was just wishful thinking. Thanks for confirming this and putting my mind at ease :-). Perhaps, subconciously, this was my thoughts leading to believe that this area of the sim was "old code".For those who have'nt had the pleasures of programming within the Windows environment(???) there are a great many ways to accomplish the effective same end result but many of the options came about at differing points in time. This condition does not represent a bug or poor design, necessarily, it may have had more to do with the design and implementation choices (and skills) available at the time the code was written. As Ken has suggested, this is the things that we can hope are improved upon through subsequent releases, in addition to the visual and apparent goodies.Larry S.

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Phenomenal discussion....Thank you very much. I've learned a lot. I've learned especially that many, many simmers have this problem and have accepted it a part of "an old code" or else they are looking for the magic elixir. I am going now to the Direct X part of my system to check the sound card acceleration to see if that makes a difference. I certainly hope MICROSOFT is monitoring some of these forum threads and is doing something about this in the NEXT VERSION.The "Fluidity Factor" is REAL, and it must be addressed for the sake of realism.MICOSOFT....How about breaking one rule and say "Hello". Let us know that you are at least listening!

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Hey Ron,Not all a/c manifest this condition. I've several with which the situation does not occur; that is why I choose the Real Air Scout, as it does show this condition very promenently. This is not to say that there is anything wrong with this aircraft; its the manner in which the textures were designed. You also may not see a light flash when the data transfer is small. You need to use the Performance Monitor (I think its only on the Pro version of XP but could be wrong).For some answers, I'm running NTFS with the page file set to 1534 mBytes. Both disks are defraged automatically as needed by Executive Defragger around 6PM each evening. Keep in mind that the Paging File (using specialized disk access techniques) is not the same as a cache. There are numerous caches in a typical system, both hardware and software. In a fast changing environment, such as flying around in a mountainous area, data can get flushed from a cache pretty quickly. Doing the same over an ocean in clear weather may not be the same...this I have not tested. Also, as I've said, the VC mode does not exhibit this at all. This I believe, is because it is more recent software and designed with user panning in mind.Hope this is of some help,Larry S.

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I experienced similar stutters when changing views (my system is virtually identical to yours), and they went away when I changed from FPS locked at 30 to unlimited. Don't know if that will work for you, but it's worth a try.

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Thanks....I always fly with "unlimited" checked. I'm going to try FS Start and see if that makes a difference. If not, I'm going to be content, and fly ...and enjoy. FS2006 just might take the "fluidity factor" into consideration.

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>Hey Ron,>>Not all a/c manifest this condition. I've several with which>the situation does not occur; that is why I choose the Real>Air Scout, as it does show this condition very promenently.>This is not to say that there is anything wrong with this>aircraft; its the manner in which the textures were designed.>You also may not see a light flash when the data transfer is>small. You need to use the Performance Monitor (I think its>only on the Pro version of XP but could be wrong).>>For some answers, I'm running NTFS with the page file set to>1534 mBytes. Both disks are defraged automatically as needed>by Executive Defragger around 6PM each evening. Keep in mind>that the Paging File (using specialized disk access>techniques) is not the same as a cache. There are numerous>caches in a typical system, both hardware and software. In a>fast changing environment, such as flying around in a>mountainous area, data can get flushed from a cache pretty>quickly. Doing the same over an ocean in clear weather may not>be the same...this I have not tested. Also, as I've said, the>VC mode does not exhibit this at all. This I believe, is>because it is more recent software and designed with user>panning in mind.>>Hope this is of some help,>>Larry S.>I do not think it is a Real Air Scout issue, because the Real Air Scout does not do that on my system . Switches are instantaneous.

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