Frame drops during day/night transition

mitchgixer6

50RPM
Nov 23, 2019
66
33
42
Hi all

Been having some issues with frame drops during dusk, day/night transition. I can play the game at pretty high settings and get smooth fps during all weather conditions. But as soon as the sun starts to go down I get frame rates dropping at certain points of the track. Happens on all tracks as far as I can tell. I have tried reducing light bloom effects, but doesn't help. Anyone any idea what settings to mess with to see if I can sort this? Cheers.

Ryzen 3600
16 Gb running at 3600
Sapphire Pulse 5700xt
Game installed on SSD.
 
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eco2006

25RPM
Sep 10, 2018
37
38
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I have the same issue and it's not caused by the HPET "problem", but maybe it helps you.
 
Sep 22, 2019
2
0
38
Does it really transition from day to night? I'm currently doing a 6HR endurance at Paul Ricard starting at 6pm. It's 8:32 pm and the sun doesn't look like it's setting anytime soon. Practically looks like it's 6:30.
In terms of fps drops, mine seems to start stuttering if I stay paused for a bit and then continue my drive. I'd have to quit session and resume for my fps to go back to the way it is.
 

mitchgixer6

50RPM
Nov 23, 2019
66
33
42
Think it depends on when the race would be held in the season. Races that would be held in the height of summer will get darker later.

I'm still no further forward with this. Put a fair bit of time in yesterday on the new tracks and was getting this on both Laguna and Kyalami. I've figured out it's only when the sun is moving. Once it's fully light or fully dark the problem goes away.

Oh and I searched for the HPET setting and it's turned off on my windows as standard and I couldn't find the setting in BIOS.
 
Sep 26, 2017
169
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59
I have this issue too , my machine is a bit marginal ,I put it down to the increased number and length of shadows as it happens as the sun is at it's lowest.
 
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mitchgixer6

50RPM
Nov 23, 2019
66
33
42
I'm thinking it must be something in the settings that's causing it, but I can't nail it down. My machine is new and well above recommended specs, pretty much everything set to Epic, 1440p res and runs no problem during day/night /rain etc but the transitions are causing me problems.

I'll maybe try messing with the shadow settings again