Hi guys,

 

I'm definitely seeing a major FPS hit with the latest ASN beta. Running the latest Nvidia drivers on a 980GTX without SGSS (in fact without any AA at all on a 4k panel) and cloudy conditions are resulting in maxed out GPU usage (in a way I was only able to achieve with bonkers high AA settings in the past). I've tried both REX and P3D default cloud textures and the result is the same...

 

MJ

Same here. High GPU usage even without MSAA. One 4k screen with 980Ti. I have tried older and newer drivers nothing helped. It's bit better, when I turn volumetric fog off, but still not as in 3.1.

Since 3.2 there have been quite a number of users reporting issues with the new Nvidia drivers. The "symptoms" described here seem to mirror that. Might be worth a try to roll back a few drivers and give it a go.

Hey,

 

yeah, had the same thought and tried the 361.91 yesterday with same outcome. I think there have been enough reports and I'm pretty sure someone of the HiFi team will soon acknowlege, that they are working on that issue. There is a thread in the HiFi forums and in the Avsim HiFi forum as well and as far as I remember, some of you out of this thread also filed a support ticket.

 

Looking forward to some news. To revert is not really an option as there was that sky haze problem, right?

Since 3.2 there have been quite a number of users reporting issues with the new Nvidia drivers. The "symptoms" described here seem to mirror that. Might be worth a try to roll back a few drivers and give it a go.

Same result for me.

I also experience a major drop in FPS in dense clouds, and that is only with 2x MSAA (No NVI settings). In addition only 512x sky textures , DXT5. Reverted back to previous ASN build but it didn't make any difference for me.

For those with issues, try reinstalling not just your GPU drivers but also revert to your OEM GPU drivers whilst selecting a clean install under Advanced in the installer. IE, go to the OEM website and use the driver they suggest or the one that came with the CD using a clean reinstall. I use drivers dating back several years and they are perfect. The latest NVidia drivers have caused a lot of problems for a lot of people in many different games yet NVidia have been for the most part totally unwilling to fix problems they have created. Obviously this may be a problem for those on newer GPU's which are not supported with older drivers, in that case the OEM driver should still be the first port of call.

 

After reverting leave any AA settings as default and see if the problem remains. The stutters that came with V3 for me were resolved by restoring everything to default and leaving it that way using only the P3D sliders to control AA.

 

If you are running at 4K then you are also likely to hit problems either way because at those resolutions you need almost 4x the GPU VRAM to cope with the same thing someone running at 1080p does. Remember also that AA increases the VRAM requirement even further, I have seen sometimes 10 fold in some games! 4K resolutions also require almost 4/5x the amount of pixel rendering per second, something this platform is not properly optimized for. It would be fine if the simulator dynamically altered settings and had further optimized default models/textures so that performance is preserved but it doesn't. Slowdowns with 4k are virtually inevitable unless you have some serious hardware.

I think my problem may have been a virus that got in. Runnimg a full scan and clean now. Noticed a lag in my TrackIR when my FPS would drop in the dense clouds. Not a normal lag with low frames, something else. Checked Lasso to find that my CPU was at 100% constant, but no task was even comimg close to that. After the scan, im goimg to test again.

I'm also getting FPS hit in clouds now - turned off SGSS and still the same. Not sure if it is ASN or the REX fix that was issued recently. I've also added to the post on the Hifi forum.

Same here. It is not drivers.. or nothing installed. It is last beta of ASN.. as I usually fly everyday and never have any problem. Last beta had it. solved setting the layer clouds from 3 to 1. 

Repeat, I usually fly and with worst conditions like yesterday that had the FPS issue. No changed drivers for a month or so... every fly in P3Dv3.2 was smooth even with high cloud density layers.... With last update..... bang! down and stutters.

I noticed these drops as well. I don't remember which driver i'm using, but i'm pretty sure it's not 36x yet. Only noticed the issue after these last updates from ASN (i didn't mess with REX for a looong time, so it's not that).

 

Basically: Same driver for quite a long time, same REX textures for over 6 months. Only differences are P3D 3.2 and ASN.

Same here with the dense clouds.  Also noticed that having building shadows and vegetation shadows (3000m) enabled in some situations would crush my graphics card (970 GTX) having it pegged at 99%.  This is with 3.2 and the latest ASN. 

What is strange is that we all talk about ASN, and I'm having drops and stutters without ASN with default weather themes with rain and overcast. Maybe is the latest REX fix?

What is strange is that we all talk about ASN, and I'm having drops and stutters without ASN with default weather themes with rain and overcast. Maybe is the latest REX fix?

Do the number of cloud layers stick to P3D after setting a value in ASN? Maybe that might explain why even without running ASN the fps hit remains. Like someone above said the problem was solved for him when he set cloud layers to 1.

I am not sure if you have seen it already, but to those of you who encounter massive FPS drops while flying in overcast cloud conditions, I highly recommend you to watch two of my videos, in which I have documented the impact of clouds on FPS and provided some tips on how to improve your performance:

 

Part 1: Cloud Shadows, Sunset/Sunrise and FPS

 

 

Part 2: Active Sky Next, Impact of the volumetric fog on FPS

 

 

I am sure these videos will give you some valuable tips.

It's either Rex or ASN. Waiting patiantly for a response.

 

Cheers

Mike