RayProudfoot

Nick, that was when I had no idea what the problem was and we tried different things like removing files and switching options off. Nothing was definitive hence why I gave up with that topic. Despite Marcus's help the problem remained. But on this one I have found the cause. Only one setting was changed to resolve the problem. It doesn't get any clearer than that. Where is @Marcus Nyberg? He is the developer isn't he?

Nick, I wouldn’t expect anyone to buy a UHD monitor to test something. I’m surprised no one running UHD who has Bilbao hasn’t commented on this post. Surely I can’t be the only person. Whilst you say you’re not sure DL in 4K is the problem I am 100% sure it is simply because that is the only change I made to prove my findings. It would be disappointing not to hear back from the developer since he knows the most about how this airport was designed. I would ask that you bring this to his attention please.

I feel like I've been abandoned by Orbx. I've spent a considerable amount of time working on this problem and finding what is causing it. Having identified UHD as the issue I would have at least hoped someone from Orbx would have confirmed my findings. Does no-one else run P3D v4 at 3840*2160?

Hi John, Wives just don't understand. Spending money on better equipment is an investment. You'll get years out of a good monitor. But you would need to change your graphics card and then the whole process starts over again. It's never ending as you well know.

Have a look at the two attached screenshots. This is with a resolution of 1920*1080. The first is with DL off, the second is with it on. The differences are minimal. This problem only occurs with a resolution of 3840*2160. That's probably why so few are reporting it. I guess all support staff also run at 1920*1080. But UHD is becoming more common and it's not unreasonable to expect airport scenery to work with higher resolutions. Certainly FSDT, Flightbeam, FlyTampa and UK2000 airports do not exhibit this problem with Dynamic Lighting killing performance with UHD especially when a powerful graphics card is used like the 1080Ti. If anyone else has a UHD monitor perhaps they could confirm my findings.

@Mar:kus Czie:gler, I’m sorry I confused you with Marcus, the developer. You have a great system but you don’t list your resolution. 1920*1080? If so that could be the reason. One quarter of UHD. I’ll test at 1920*1080 tomorrow.

Thanks. I thought Markus was Marcus. Obviously different people.

This one please.

Nick, when all other options are exhausted whatever remains, however unlikely, could be the cause. It isn’t a case of questioning the competence of the developer but asking if any non-standard coding has been used. When a problem exists at one airport that doesn’t exist in any of the other 30+ I have it’s not an unreasonable question to ask. I had a different problem at Canberra airport (also Orbx) a year or so ago when the airport ICAO shown in a moving map program (EFB) changed half-way from the terminal to the runway. Turns out it was something in the installed files. That’s why I asked the question. Orbx airports do seem to have issues I don’t get with FlyTampa, UK2000, FSDT and Flightbeam.

Hi Marcus, I moved those files out of the scenery folder which has the same result as setting extension to off. Still horrendous stutters and GPU close to 100% even when sim locked to 30Hz. That suggests something is making extreme demands on the GPU when Dynamic Lighting is enabled in UHD. Are you able to run at UHD? That’s important. John, the penny has just dropped. Many happy days with RC4. I still use it. Hope you’re keeping well.

@John Burgess, thanks, you’ve been very helpful. It’s all the more baffling as you have a slower CPU and GPU than me. I have a feeling it’s related to UHD. I might resize my display to 1920*1080 to test that theory.

Nick, you’ll see I was heavily involved in trying various settings to try and resolve the problem in that topic. Many others have reported problems but it’s curious that no support staff have the problem. Why is that? It’s very simple to try my test. Three settings:- Monitor set to 30Hz Resolution of 3840*2160 Dynamic Lighting off. If anyone could try those settings with a 1080Ti or better they should be able to replicate the problem. Settings in the config for the airport such as 3D grass have no appreciable impact. I have to ask one question and I hope the developer will not take offence. Is this airport 100% compatible with the SDK. I ask because it’s unique in having such severe performance issues.

Hi John, thanks for your feedback. Did you try taxiing around the airport? The performance is very different in the air to that on the ground. If you did and it’s still okay then your resolution could well be the difference between our systems. Hi Nick, it would be helpful if the scenery developer could comment on this problem. As I said earlier I have lots of far larger airports with many more Ai and the performance is far better at those than at Bilbao. If you or others who run at UHD could try with DL on/off and see if the change is as dramatic as I describe it would help enormously. I’m less inclined to request a refund now as I’ve found a workaround. But as I always fly in daylight I’m perplexed why DL for this airport and surrounding area would have such an impact. What is using DL other than my aircraft which doesn’t exhibit this problem at any other airport?

Is anyone there?

I've just completed a flight from LEBL to LEBB. Perfectly smooth all the way including the approach and landing on Rwy 30. To prove my earlier comment here are two screenshots - one with DL on and another with it off. Look at the GPU load. 98% with DL on but 69% with it off. Something in these scenery files are making demands of the graphics card it cannot deliver. But what? Whilst the readings show 30fps for DL on there is a great deal of stuttering when flying and taxiing so don't take that reading as gospel. I'm running at 3840*2160 with the monitor set to 30Hz. You can see the demands on CPU1 (the primary logical processor) are well below maximum proving this is not a demanding scenery for the CPU. But for the GPU the demands are exceptional with DL enabled. Only the developer can answer why.

I've had this airport for a while and whilst it looks wonderful the performance has been dreadful. I have a system more than capable of delivering 30fps at many large airports but at Bilbao it cannot get beyond 23fps at what is a tiny airport. I've discussed this in another topic and other users also complained of poor performance even with a 2080Ti which is ridiculous. That topic is marked as resolved so I've started this one because I've discovered what the problem is. DYNAMIC LIGHTING! With it turned on fps struggles in the low 20s but crucially the GPU is running flat out at 99%. There are continuous stutters and trying to taxi or take-off and land is awful. I disabled Dynamic Lighting in P3D v4.5 and the performance is transformed. 30fps can be maintained, there are no stutters whatsoever either on approach or taxiing around the airport and the GPU load drops to 70-80%. Surely this has to be a problem in the files for this airport? I can keep Dynamic Lighting on for all other airports without the problems I'm seeing at Bilbao. A response from the developer or other owners of LEBB would be appreciated.