reported Drastic FPS drop when Apache flies over placed castled in Syria map

[yogiklatt]

Heya, I am getting drastic FPS drops in 4K from 60, 70 down to single digits when I fly the Apache over placed castles in the Syria map. I assume it has to do with altimeter raycast because it does not happen with the Huey.

nullAn example is the castle in Kyrenia in North of Cyprus
X+00045803 Z-00233346
36 S WE 29363 10897

Same issue happens with the fortifications in Famagusta (WD88).

Not sure if that is a problem with the Syria map itself, but given that I could only see this in the Apache I thought I should post it here.

Edit: Added use case, spawn a player Apache (0 knots, 100 feet AGL) at these coordinates (screenshot added):

X+00018766 Z-00178089
36 S WD 85990 87321

Once ingame immediately hit active pause and you should see the fps drop.

Edited February 17, 2023 by yogiklatt

[Floyd1212]

The exact same thing happens to me in those two locations.

If I try to land inside the walls of the fortress on the east coast, frames drop to single digits when I go below a certain altitude. If I stay above that altitude, I can over-fly the area without issue. 

[BIGNEWY]

please include a short track replay 

thank you

[Floyd1212]

Simple track that demonstrates the issue.  (I let George do all the work in the back seat.)

Spawned into a stationary helo at 120 ft and my frame-rate settled at around 40-50 FPS.  Then I tell George to descend to 80 ft and the frames drop to single digits.  Tell him to ascend back up to 120 ft and the frame rate returns to around 50.

Frame drops at the fortress.trk

I'm running an RTX 3090, with the following graphics settings:

Curious to see if others see the same results.

[Lord Vader]

hey @Floyd1212

Thanks for the info, we're investigating this.

[lefuneste01]

Another example : https://forum.dcs.world/topic/295270-vr-fps/?do=findComment&comment=4920431  just look left and you will see your fps greatly increasing.

or this one : https://forum.dcs.world/topic/289444-example-of-50-of-fps-loss-for-a-reason-not-obvious-to-guess/#comment-4902513

@BIGNEWY @Lord Vader: You should really setup a thread to collect these situations where fps are tanked just by looking in a specific direction/place. There maybe some issue (Lod, wrong model...) easy to fix. Low effort, great potential wins.

 

Edited February 24, 2023 by lefuneste01

[USSR_Rik]

Confirmed, thanks