Low FPS when flying through Clouds

Bug Reporting Hub Weather & Live Weather
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1

Do you have any add-ons in your Community folder? If yes, please remove and retest before posting.

Tested it without any add-ons and the fps remains low

Are you using Developer Mode or made changes in it?

no

`Brief description of the issue:’

Flying in clear skies with FPS up to 70, but with 1 single cloud appearing or even a large thunderstorm it can drop the FPS down to 5-15

Detail steps to reproduce the issue encountered:

Fly with clouds or in live weather mode

PC specs for those who want to assist (if not entered in your profile)

Intel(R) Core™ i7-8700K CPU @ 3.70GHz 3.70 GHz ; 32GB Ram

Build Version # when you first started experiencing this issue:

1.18.14.0

Are you on the Steam or Microsoft Store version?

Microsoft Store

2

Strange, is it reproducible every time even after restart?
What does the FPS display (developer mode) show in that situation? Please post a screenshot.

Which settings (especially cloud quality) are you using? Which graphics card? Are your graphics drivers up to date?

For me clouds cost maybe 5fps and I’m running them on ultra.

3

I have seen an FPS drop when encountering high level clouds at cruise, sometimes just wisps of a cloud but my FPS almost halves from 60ish down to low 30’s to high 20’s when i look at the cloud…if i rotate my view away from the clouds it gets better. Definitely weather related as I switched to clear weather and the FPS recovers.

I’m running Ultra clouds, live weather, 3080, everything up to date…

3 Likes
4

Same problem here…

1 Like
5

Cloud ultra setting is very demanding.

Try to lower it to High or Medium setting if you got performance issue.

6

The clouds weren’t this graphic demanding before sim update 5, I was able to run clouds on high without any fps loss. Since that update the graphics demand has increased for clouds causing my FPS to drop to half

2 Likes
7

Here’s a severe example of this bug for anyone needing an example:


Only got about 20 FPS during this although the clip doesn’t show it that well, unless you put the video on full-screen.

2 Likes
8

Possibly related to the animation in the cloud tops. If you slew in close to a large cumulus cloud you can see the animation of it burning off and reforming (as they do). But since SU5 this animation happens very quickly, and looks about 10 times faster than normal for me. I also started getting the grainy clouds at the same time also probably related.

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9

Still remains after SU6 unfortunately.

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10

Yes.This is a high altitude volumetric fog, which is unfortunately an FPS killer when we’re flying inside it.

I usually get this weird fog when cruising at FL350-FL370

I hope Asobo notice this bug report.

2 Likes
11

Exactly that.

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12

Yes agreed

When the high lvl fog is gendrated my laptop GPU fan goes crazy …. Without …. No issues

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15

:wave: Thank you using the Bug section, using templates provided will greatly help the team reproducing the issue and ease the process of fixing it.

Are you using Developer Mode or made changes in it?

no

Brief description of the issue:

performance decrease passing through the clouds compared to Sim Update 8

Provide Screenshot(s)/video(s) of the issue encountered:

Detailed steps to reproduce the issue encountered:

PC specs and/or peripheral set up if relevant:

12900K/RTX3090/32Go

:loudspeaker: For anyone who wants to contribute on this issue, Click on the button below to use this template:

Do you have the same issue if you follow the OP’s steps to reproduce it?

Provide extra information to complete the original description of the issue:

If relevant, provide additional screenshots/video:

16

Hard to say, as Overcast cloudy conditions in SU8 performance was poor.

1 Like
17

I had a heavy overcast withCb in a couple of places and my fps dropped from 50-something to 20-something. Ridiculous. Never had this before..
Reducing cloud quality didn’t help..

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18

Can confirm. With a lot of clouds/fog fps drops from 35 to 25.

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19

Well they apparently increased the cloud precision to remove some banding artifacts. I hope they don’t need to reduce quality noticeably to bring back the performance.

3 Likes
20

Hopefully if they choose to do that they give us the option.

From what I’ve experienced I’m not finding a perf drop in the clouds at all. I’m fairly confident whatever is going on performance-wise is not cloud related.

21

I haven’t noticed any bad performance in clouds but I also haven’t been flying in many clouds.

From what I heard Seb say in a recent Q&A, it seems that Asobo doesn’t want to introduce subtle changes unless they can do so without harming performance.

22

I noticed the same yesterday, i needed to put clouds on High which was Ultra earlier to achieve my previous FPS counts. There’s definitely an fps impact on clouds now with SU9.

1 Like