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Liftoff > General Discussions > Topic Details
dayofmone 29 Jul @ 5:55am
Busted physics in racing mode?
Is anyone else having problems with completely busted physics when playing some maps as a race?
On some there is a 50% chance to crash on take off because physics go crazy and simulates a collision and smacks my drone away at lightspeed as soon as I throttle up.
On another map I have a very hard time even getting started because for some reason the drone doesn't fly the same as usual, it feels like gravity is double the strength - if I give the same drone the same amount of throttle as I am forced to for taking off on that map when I play a different one, the drone takes off into orbit.
I have had no issues in free flight so far, but in racing mode, things sometimes are crazy.
Can't tell if it is because of the different take off spot with added geometry or because of the different game mode.
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Showing 1-4 of 4 comments
JuniorDiscart  [developer] 30 Jul @ 4:37am 
Hi

The drone physics are not affected the selected game mode. Only in Liftoff Micro Drones are there some game mode specific flight features that can guide you to the next checkpoint, but these are not available in Liftoff: FPV.

Most likely it's because of the different spawn point then, but I would have to investigate the specific usecase. So if you have more information you can provide, we can look into it:
Environment, track & race, drone setup you're using, etc.
#1
Mara Huldra 2 Aug @ 4:37am 
> Is anyone else having problems with completely busted physics when playing some maps as a race?

There are some maps i can't comfortably run on my laptop (like Rustline and the snow one), and when i try to do a race in them, the drone can jump all over the place, between frames. At liftoff, it can suddenly jump from the ground to the atmosphere in one hiccup. It also happens in free-flight mode, though.
#2
JuniorDiscart  [developer] 2 Aug @ 11:13am 
Originally posted by Mara Huldra:
There are some maps i can't comfortably run on my laptop (like Rustline and the snow one), and when i try to do a race in them, the drone can jump all over the place, between frames. At liftoff, it can suddenly jump from the ground to the atmosphere in one hiccup. It also happens in free-flight mode, though.

Then that's a frame rate problem, not a physics problem. The physics are required to run at a certain rate. If that rate can't be met because the frame rate is lagging behind severely , then the physics will require more time to overcome the slower frame rate, or skip steps that will throw the drone's flight controller out of balance.

The environments you mentioned are the newest ones, and they require some more VRAM compared to earlier environments in Liftoff. Not having enough VRAM will cause the the GPU to stall waiting for textures to be swapped during rendering.
#3
[OFAW] Turbo 2 Aug @ 11:47am 
Yes, Even with the same host. Say he changes the map, the quad feels completely different. Get used to it then 20mins later he changes maps and again totally different
#4
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Liftoff > General Discussions > Topic Details
Date Posted: 29 Jul @ 5:55am
Posts: 4

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