I only fly FSX/P3Dv2/DCS World etc for fun, sue me!

Ok ok I said Fun......oh dear...of course what I mean is I cannot train ....

 

So back to training....Now then son watch the height WATCH THE HEIGHT.......concentrate...why did you not watch your height son before plunging us into the ground......well sir it is like this the B.......y stutters put me off!!

 

Please fix this LM .....as it is no fu.....ops cannot say that it is holding me back!!

 

Cheers all!

 

 

I do believe that P3D also needs a profile from Nvidia to help...gone back to FSX it may be dead it may not be as pretty it may not have shadows ...but...it works and it does not stutter..

 

I'm considering this as well, much to my dismay.

 

Mark

I have been carefully following this thread since it has started. For now, I guess I've found my sweet spot for flying in heavy weather conditions.

 

I started the same saved situation over and over again which is here in Vienna (LOWW) where we have real bad weather since a couple of days :mad: ... Trying all suggestions which came up here (define out 'volumize', other texture sets, dxt or 32 bit, HD, 1024, and 512 resolutions, ASN on or off, ...)

 

it is volumetric fog which costs me the most ... turning it off increases fps from 20 to 30. This is reproducible. Flight experience is smooth enough but could be a better.

 

important parameters:

SGSS 4x is still set in NI (need it against shimmering in VC of A2As C172)

MSAA 4x (P3D) AF=16 (P3D)

shadows all turned off (no need for it in heavy weather imo)

HDR off

Vsync off

frame rate unlimited, using EVGA precision' tweak' with fps limited to 30

all other settings are mod-high (max in some cases)

 

So that's my sweet spot for heavy weather flying until LM comes up with a solution for this cloud penalty ...

 

Cheers,

Harry

P3D v2 isn't made to have fun (entertainment). One should learn and practice flying.

Spirit

God has spoken...

Just jumped in to see if i can squeeze a frame or 2 out of my system but you all test in different locations with different aircraft making it hard to know if my system is in top shape , so will rob or other very experienced user test in a scenario of there choice using FTX Global and a default aircraft and report back?
Dont know if 15-20 fps is topnotch in EGLL or FTX EGHI with heavyjets.no ai

 

Remember also time 

Michael

I've now tried P3d 2.3 with ASN (the most recent SP1 beta), OpusFSI/FSX (pick your recent version, either 4.0 or 3.5) and FSGRW and they all have lower frame rates in overcast conditions than P3d 2.2 did. FSGRW seems to provide the best performance, but not by much. I think Rob might have said it earlier in this thread that without a flagship video card (Titan or GTX 780 TI), performance in cloudy conditions is going to suffer.

I've now tried P3d 2.3 with ASN (the most recent SP1 beta), OpusFSI/FSX (pick your recent version, either 4.0 or 3.5) and FSGRW and they all have lower frame rates in overcast conditions than P3d 2.2 did. FSGRW seems to provide the best performance, but not by much. I think Rob might have said it earlier in this thread that without a flagship video card (Titan or GTX 780 TI), performance in cloudy conditions is going to suffer.

Is this with or without the cloud fix?

I seemed to have confirmed that it is the cloud textures/rendering (not sure on the terminology) as I was flying the RealAir Legacy around the LAX bravo in "partly cloudy" weather according to ASN over photoscenery and was holding 50 to 60 FPS.  Flying around or through several small, isolated clouds had no effect on frames.  I then flew out towards Catalina and into "cloudy" weather according to ASN and as I approached the clouds my frames tanked to 15 to 20 which continued through the clouds.  Once out of the clouds frames went back up to 50-60 but if I panned the view behind me the frames would immediately drop.  I use REX at 512 and medium on the overcast setting and 4x MSAA.  I could stand to drop half of my frames with clouds but the current drop is unacceptable.  I also feel that I am using very conservative settings for my system.  Turning off the "clouds reduce visibility" option in ASN seemed to help but I can't explain why.  Also turning off volumetric fog in P3D creates a sharp line of fog at about 1000' AGL where the visibilty is greatly reduced below that line and then greatly increased above that line.  I'm not sure what's going on there. Luckily I spend most of my time flying over Southern California where the weather rarely get worse than partly cloudy.  

 

Ryan

Is this with or without the cloud fix?

 

 

Without.

 

With the cloud fix, all three weather injectors give performance in 2.3 that is almost comparable to 2.2, but I also have to turn off HDR. Then again I only have a GTX 680 4GB which is getting hopelessly outmatched by the advances being made with P3d. I'm pretty much resigned to buying a complete new desktop PC based on the new Haswell E CPUs and a GTX 900 series video card. I'm saving my pennies.

Hi all,

Just want to pop in here to let you know the current state of affairs. It has come to our attention that there may be an issue with the cloud bottoms drawing vertically instead of horizontally. This could considerably increase the amount of overdraw, and significantly contribute to the issues many of you are reporting. If the issue is only in the shader, we will likely be able to push it as a hotfix.

To clear up the confusion, the volumize flag doesn't simply add a noise texture to the clouds. It is only active on clouds within a few kilometers of the camera, but it actually adds a spherical volume effect to each sprite of the cloud model. It works equally well on the stock clouds and aftermarket clouds.

Zach Heylmun

Software Engineer - Prepar3D® Team

 

 

Hmmm.

Hmmm.

I think I need a translation :>)

I think I spotted the issue that Zach indicated, but I'm not entirely convinced this would significantly contribute to the issue ... it's certainly an issue but I guess we'll just have to wait/see when/if we get a hotfix.

 

Go to the 23:37 to 23:42 mark in my video - notice the vertical cloud sliver ... I believe this is supposed to be a cloud bottom.  However, I don't see "a lot" of them so hence my caution on this possible "finding".  

 

My take-off cloud performance wasn't affected much 12:09 to 14:30

 

 

I did notice a strange cloud shadow interaction with the terrain (maybe this was due to vertical cloud bottoms), but I can't seem find the spot in my video.  On landing the performance decrease was more noticeable ... but I was FMC so wasn't really interacting that much with the aircraft (and yes I know I forgot to turn off the autopilot on landing) ... I haven't flown the AXE that much and don't usually use the FMC, but today I did.

 

Cheers, Rob.

 

I think I spotted the issue that Zach indicated, but I'm not entirely convinced this would significantly contribute to the issue ... it's certainly an issue but I guess we'll just have to wait/see when/if we get a hotfix.

 

Rob,

 

What Zach found and some folks also mentioned, in the LM forum is not just a small visible problem that could be seen on your video too.

It is a kind of programing error in the clouds.fx file, related to the coordinate-system of clouds that changed considerably.

 

That's why if someone uses the 2.2 clouds.fx file the problem is not present, although cloud-shadows disappear.

Previously they used a 9-point rotation matrix (one can easily notice if compares the new and the old .fx files) and the new system employs a very different matrix, which is based on the texture vertices.

 

best

Potroh

 

@Rob,

 

I've seen this issue with 2.3 (vertical cloud slivers) but only when starting a new flight on pause. As soon as I hit the P key, these artifacts disappear and I never see them again.

 

Jay