Jerking Motion

[Bubblehead]

What could be causing some aircraft to have jerking motion when viewed from the outside but other aircraft do not? Is there any adjustment in the Setting that could eliminate this?

[garymbuska]

Is this a payware aircraft?
I have seen where a highly detailed aircraft combined with other settings can cause this.
I would suggest you go some place turn down all of your sliders than see if the aircraft still stutters. If so you will have to turn down some of your settings. If not the only other thing I can think of might be a bad model but I am not sure about this.

[Bubblehead]

These were no payware aircraft although in addition to the default, I also have POsky and Tom Ruth aircraft. Which setting you think I should adjust down? I could send you what setting I have now and you can let me know if it's too high. Other than the "jerking motion" which only happens with some of the aircraft, I have no other problems at the setting I'm in.

[garymbuska]

These were no payware aircraft although in addition to the default, I also have POsky and Tom Ruth aircraft. Which setting you think I should adjust down? I could send you what setting I have now and you can let me know if it's too high. Other than the "jerking motion" which only happens with some of the aircraft, I have no other problems at the setting I'm in.

I would start with the amount of autogen scenery you create and how dense it is start out with it turned low and see what happens.
If you look at the top of this forum you will see a sticky titled FSX FAQ look at that it should give you some good ideas
This one is about auto gen
http://forums.simviation.com/cgi-bin/ya ... 1160534656

[Bubblehead]

But why not all aircraft are affected. For example the C17 was OK while the B747 Virgin Galactic jerked. Here are my specs and settings:

Processor: 3.5 GHz AMD FX 8320 Eight Core
RAM: 32698 Mbytes Usable Installed Memory
Video Card: AMD Radeon HD 7700 Series
OS: Win7 Ultimate (x64) Service Pack 1

SETTINGS

Global Setting: Ultra High
Frame Rate: 35
Screen Resolution: 1920x1080x32
Filtering: Anistropic
Global Texture Resolution: High
Level of Detail Radius: Large
Mesh Complexity: 56
Mesh Resolution: 10M
Texture Resolution: 30 CM
Water Effect: Mid 1.X
Scenery Complexity: Very Dense
Autogen Density: Very Dense
Special Effects Detail: Medium
Cloud Draw Distance: 90 Miles
Cloud Coverage Density: High

[garymbuska]

The reason as to why some aircraft has this problems can be several things.
One is what we are talking about with the settings the others have to do with the aircraft itself.
When one makes a aircraft they decide as to how detailed it will look which is why Payware aircraft look better and perform better than freeware aircraft does. No two aircraft are the same so depending upon what the designer uses for textures that will decide as to what kind of frame rate impact it will have. As a rule of thumb the more detailed the aircraft the more it will effect your frame rates.
As for your settings
I suggest you back down your frame rates to 30 Although there is a lot of argument on this matter some will say set it to max while others say set to no more than 30 I use 20
I also would turn down the auto gen to medium
One other thing you can try is to use the shift z to show your frame rates when flying this aircraft.
You have to remember that the area that you are flying in can also effect frame rates and cause stuttering especially true if you have any payware scenery such as Mega Scenery.
Fine tuning FSX is a slow and tedious task
I still suggest you look at the sticky I mentioned in my last post the suggestions there should help you out.
As for your system as you can see by my signature my system is not that different from yours the biggest difference is I use Windows 8 64 bit and have 12 gigs of ram running at 1800 mhz
I am not a big on Radeon video cards I use Nvida but that is a users choice.
That is why I switched to a 64 bit system I can hang up to 32 gigs running at 2200 mhz But that would be a little costly.
But I think in the future that is what I will do.
After looking at the video card you are using I noticed it is windows 8 friendly But I do not know about the rest of your system especially your Motherboard it might not support a 64 bit system.
Just take your time and only adjust one thing at a time until you get the effect you want.

[Bubblehead]

Gary: Thanks for the input particularly in the section about the aircraft and the area specs. In fact I'll try flying off different fields and see if I still experience the problem.
My mobo is an Asus M5A99FX PRO R2.0. My RAM however is 32GB of Kingston DDR3/1066. Also my OS is Win7 Ultimate 64 bit.
Would it make any difference if I go to a 1333 or 1600 RAM. OC is 2133.

[Bass]

Just a note Bubble.
Gary is on the spot, and my advice is, keep away from oc the ram! You wont gain much, except heat, and 32gb, no matter what, is surely enough!
My 2c.

[Bubblehead]

Bass: I'll take your advice into consideration. Thanks.

[Bubblehead]

I think that my problem is the terrain. I live in San Diego and as you know our international airport (Lindberg Field) is not long enough for jumbos especially with full fuel. So I use MCAS Miramar. I left my setting as is. I flew the B747 Virgin Galactic (freeware) out of Miramar and I experienced this jerking motion. However, when I flew out of North Island Naval air Station, there was no jerking motion. Also I noticed that the jerking motion seem to disappear as I leave the Miramar air space. So as long as I'm aware of the cause, I'll just leave my setting as is.

[garymbuska]

I think that my problem is the terrain. I live in San Diego and as you know our international airport (Lindberg Field) is not long enough for jumbos especially with full fuel. So I use MCAS Miramar. I left my setting as is. I flew the B747 Virgin Galactic (freeware) out of Miramar and I experienced this jerking motion. However, when I flew out of North Island Naval air Station, there was no jerking motion. Also I noticed that the jerking motion seem to disappear as I leave the Miramar air space. So as long as I'm aware of the cause, I'll just leave my setting as is.

There you go just like I said Scenery can make a difference I have Mega Scenery Florida and so far have not seen any problems I max out all sliders except Auto gen.
I could be wrong here but Auto gen is probably one of the biggest frame rate killers.
You might find out if you back down the auto gen you will not have the problem anywhere.

[Bubblehead]

Speaking of Mega Scenery, I have the Mega Scenery Southern Cal which stunk so I took it out. I could use some scenery improvement. Any Mega Scenery software you recommend i should try?

[garymbuska]

Speaking of Mega Scenery, I have the Mega Scenery Southern Cal which stunk so I took it out. I could use some scenery improvement. Any Mega Scenery software you recommend i should try?

I have Mega scenery California for FS2004 and Mega scenery Florida for FSX.
Like you I was not impressed with the California version but it is for FS2004 But I like the Mega scenery Florida.
There are pros and cons for this kind of scenery being photo real it looks good only when you fly with in certain altitudes.
There is so much out there it is not funny You have land class scenery then there is mesh some are free and others you have to pay for. As a rule of thumb anything you pay for is usually better than anything for free.
I have some mesh scenery that was free and to be honest with you it does not make that much difference.
Just Google FSX SCENERY and you will see several links for both free and pay scenery.
It really depends upon what you want out of your flying experience. If you are like me I like things as real as you can get them which is why I got the Mega scenery, As I do not know of anything else that could be closer to Photo real scenery unless the pictures were taken more than 10 years ago.
I have a B747-200 for FS2004 that was payware than they released it as free ware it is called Ready For Push back
This is so life like that in order to start the engines you have to go through each step like you would if you were actually in the real thing CRTL E will not work, it takes you about 5 minuets just to get one engine started. But I actually love it.
I use both rudder peddles and have a flight yoke with throttles. Like I said the closer it is to the real thing the better as far as i am concerned.

[Fozzer]

One thing I could never cope with was/is; "Photographic Scenery"!
Fine when high up in the sky, but really naff when on the ground...a flat photograph!

The scenery which REALLY makes it for me is; "Ultimate Terrain USA" for FS 2004!
(I also have the same version for FSX, but I find the FS 2004 version is far superior).

The layout of the land, with its roads, railway lines, rivers, waterways and streams, coastal contours, etc, are as they appear on Google Satellite Maps, and make the whole scene a joy to explore!

With selected (free) mesh, the whole of California comes alive for me!

Paul....FS 2004 (and FSX)... ...!

http://www.flight1.com/products.asp?product=utusa