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Author Topic: Mouse placement, plane physics, loading issues  (Read 5417 times)

Tampa

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Mouse placement, plane physics, loading issues
« on: June 18, 2012, 06:31:43 am »

As the title says I have a couple issues i run into from time to time.
The first one is the mouse placement.
Sometimes my mouse cursor points exactly where the mouse is, but sometimes i hover right above a slider and cant move it, because the cursor is slightly offset. I only get this at like every third launch, but it has become more frequent with the last couple updates. From my knowledge these issues happen, due to resolution issues(at least in java, that is a big problem). I do not know what this issue is tied to tho, as it does work from time to time.

My second issues is not really a issue, it is more a suggestion from a fellow pilot, who i showed pictures and videos of the plane physics, let me list a couple things:
1. The non-wheel surfaces create much more drag and seem to stick to the ground, example: You can drag the tip of the wing across the runway no problem irl, in Outerra you instantly flip over and go out of control.
2. When turning the tail of the aircraft should yaw against the aircraft bank, meaning when i turn left the tail should not immediately start moving right, it should 'fall' towards the lower side of the aircraft, before starting to turn. This sideways movement is a basic characteristic of any aircraft.
3. The flaps do not create lift realistically, normally for a Cessna dropping the flaps results in the plane move upwards and pitch nose down slightly, while the effectiveness of the elevator is reduced.
4. The rudder as of now is way to soft and really needs some more strength, if i move it to either side, it should yank the aircraft around quite violently and make it go into spin, if not counteracted.
Theres more i am sure, but my friend stressed these things out the most, he is a private pilot with a couple hundred hours already and i think he has a point. I have built RC planes and can confirm his opinion as well.

My last thing are my loading issues from time to. I tend to run into lag spikes, when flying low and fast. These seem to be caused by the GPU side of the rendering. My CPU does not even notice Outerra running, I rarely get any CPU side lag. Memory is also fine. My GPU's however spike at some occasions and i think the loading happens in too large packets or in too large chunks of data. I have two Geforce 580 with 1,5gb Memory each and these spikes are maxing out the GPU for a couple seconds. I have tried reducing the Graphics, but these spikes are still happening, tho not that violent.

That is all for now, i can not find any more mayor issues than these.
Hope I was a help in some ways, Peace.
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cameni

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Re: Mouse placement, plane physics, loading issues
« Reply #1 on: June 18, 2012, 07:34:57 am »

The first one should be related to a titlebar, setting wnd_hide_titlebar to false in eng.cfg should help.

The second one .. that's more a question to the JSBSim flight dynamics model used, although some points may have to do something with us not handling the cases entirely right. This is Angrypig's domain though, he may write something about it in his weak moments.

The GPU lagging issue .. what drivers are you using? There were these types of issues reported with 301.xx drivers, I don't know whether they have been fixed in 302.xx ones yet. OT is GPU bound, but we are using asynchronous handling for everything, and the only case when we get a GPU lag is when the driver itself decides to do something, for example when there's not enough memory - but that should not be your case. I've also optimized GPU memory consumption and sped it up as well in the development build, so the next release should be better performing. But my guess is that it's a driver issue.
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Tampa

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Re: Mouse placement, plane physics, loading issues
« Reply #2 on: June 18, 2012, 10:08:39 am »

Be sure to mention the plane physics among those who are responsible for them, the flight simming community is desperate for really good physics.

I am running the old pre 301.xx drivers, i couldnt find the 302.xx ones yet and im not willing to use them, till they are confirmed working.
I am going to try to see, if i cant change some settings in Nvidia Inspector to see, whether this is an issue related to running multiple monitors and other applications at the same time. I have heard about issues directing resources to games, when other media is playing, but i would have to investigate that.

Thanks for the quick reply.
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