ground lag stuttering(beta patch)

pupo162 · #1 05-08-2012, 08:21 PM

So, m havign this huge issue with my current installation of alpha/beta patch.

i have 70+ fps over England (60 with vsync) yet, dispite my fps i see the ground lagging and stuttering. which is strange because my bullets and pother plaens move fluidly over this stutering land.

so picture a stable fps and the game moving at 60+fps, but the ground only moving itself at 15-20 fps?

to reproduce this issue, fly over england at 500 meters max, and look down to the ground, the easiest view is looking at the trailing edge near the cockpit (low5/7 o clock) zoomed in, and watch stuff passing below you stutering.

settings:
maxed out graphics.
7870 i5 2500k 8gb ddr3

tried to play around with settings, specially vsinc ssao and AA. no joy.

Ailantd · #2 05-08-2012, 08:52 PM

Are you sure that when you look the ground you still remain at 60 fps ?
I get 60 when looking up, but about 20 when looking down... that´s "normal".

pupo162 · #3 05-08-2012, 09:32 PM

no. i set the fps counter, when i want to do the test. and the minimum sticks to 50 or so.

also this is constant, not a happens once in a while.

justme262 · #4 05-09-2012, 05:50 AM

I get 40-45 with looking down like that. The beta patch has improved the stuttering quite a bit. I imagine this will be a big problem with the Battle of Moscow flying an IL2. Maybe the snow instead of grass will improve the stuttering.

Ailantd
I see you have a similar pc to me except you have a better graphics card .But I am getting twice the fps as you!
What resolution are you running? do you use ingame AA or FXAA?
Are you against lowering your res to 1360x turning off ingame AA and using FXAA?
Cause you may be able to double your fps

SQB · #5 05-09-2012, 06:17 AM

Quote:

Originally Posted by pupo162

no. i set the fps counter, when i want to do the test. and the minimum sticks to 50 or so.

also this is constant, not a happens once in a while.

Will test now.

Didn't get a problem, can you confirm this happens both in and out of cockpit?

mazex · #6 05-09-2012, 07:17 AM

I have had a similar feeling but have to test it more. It sounds like what happens when you do multithreading that many seems to think is an easy task... The landscape object handling /texture loading etc is on it's own thread now (?) that does not run in sync with the main render thread? If you sync every frame the whole game will stutter so when the landscape thread cant keep up this is what could happen? The main render thread "pumps on" but the "landscape" is not able to keep up?

Just guessing...

Buchon · #7 05-09-2012, 08:05 AM

You mean Intel Hyper Threading ?

Yep, can be a problem, Hyper Threaded cores are not a physical core so they are slowest than a physical one (in short).

But my guess in all this is that its the know issue of the grass and trees code not being optimized yet :

Quote:

Originally Posted by BlackSix

Known Issues

• Not fully optimized: grass, clouds, and trees. Clouds cause constant FPS drop; grass and trees cause hick-ups. A few extra days of work for this, a few days for grass, few days for clouds, we felt that we could start open testing the patch without waiting for these changes.

The patch in his current state brings smooth play in high and medium altitude, but there still hick-ups at low altitude due to the not fully optimized grass and trees yet.

Wolf_Rider · #8 05-09-2012, 09:33 AM

Quote:

Originally Posted by pupo162

to reproduce this issue, fly over england at 500 meters max, and look down

settings:
maxed out graphics.
7870 i5 2500k 8gb ddr3

Try it at a higher altitude... say 1,000m and see if the stuttering still occurs

what is your video card?

and MAX SETTINGS ? well, best of luck for anyone there. One of the all times greats of frame rate killing is trees (running lots of them), every sim has suffered from it

pupo162 · #9 05-09-2012, 09:46 AM

@wolf_rider

my gpu is in your qoute of mine lol. 7870

the higher i get hte less noticeble the bug is. from 1000 meters up, its not noticible.

@Buchon, no not talkign about hyperthreading

@mazex, thats an hell of a theory, could be just that, its the onyl way to explain this behaviour!

Wolf_Rider · #10 05-09-2012, 09:49 AM

Quote:

Originally Posted by pupo162

@wolf_rider

my gpu is in your qoute of mine lol. 7870

the higher i get hte less noticeble the bug is. from 1000 meters up, its not noticible.

my confusion there if I missed your card, thanks though for pointing it out.. and if the stuttering disappears at a higher altitude, that is exactly what was going on pre Alpha patch.