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Vegetation harder than steel.
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The video shows the bullets do not penetrate vegetation throughthe skills. But players / AI is in the vegetation.


Legacy ID
Game Physics

Event Timeline

Nokman edited Steps To Reproduce. (Show Details)Sep 17 2014, 7:45 PM
Nokman edited Additional Information. (Show Details)
Nokman set Category to Game Physics.
Nokman set Reproducibility to Always.
Nokman set Severity to None.
Nokman set Resolution to Fixed.
Nokman set Legacy ID to 2392073675.May 7 2016, 7:27 PM
Nokman edited a custom field.

Yes, this really needs to be fixed, really kills the experience.

Triada added a subscriber: Triada.May 7 2016, 7:27 PM
Nokman added a subscriber: Nokman.May 7 2016, 7:27 PM
Nokman added a comment.Dec 7 2014, 8:55 AM
for which a tank? if you have a bush.

Also animals are unable to be penetrated. Even weak chickens and bunnys.

In ArmA 3 12,7 is able to penetrate a men, but not chicken???? Damn chickens, each one wearing 10 plate carriers....

Toxim added a subscriber: Toxim.May 7 2016, 7:27 PM
Toxim added a comment.Feb 13 2015, 8:06 PM

Can confirm. As long as the soldier is as close to the center of the bush, he is almost invulnerable to gunfire.
Video 1:

Video 2: shows that the rounds penetrate the bush and kill another soldier behind it, but not the guy inside the bush.

Even though i had mods enabled while recording, this also happens in vanilla.

VashCZ added a subscriber: VashCZ.May 7 2016, 7:27 PM

Oh my god :-D. I hope it works against heavy MG too. Gonna hide there if I see tank :-D.

Toxim added a comment.Feb 13 2015, 8:15 PM

In fact it does :) I also tested with vehicles too but did not record it. As long as the bush stays intact, you are quite safe. I tried with Marshall's AP rounds and its MG, rounds went through but the guy stood intact.

This is tense! Same thing happens in DayZ SA.

StJimmy added a subscriber: StJimmy.May 7 2016, 7:27 PM

Just noticed this yesterday clearly. I couldn't believe that I can't fire a gun at 3m target through a bush...

TutSi added a subscriber: TutSi.May 7 2016, 7:27 PM
TutSi added a comment.Oct 17 2015, 1:01 PM

Agree, one of ASAP priority.

PiepMGI added a subscriber: PiepMGI.May 7 2016, 7:27 PM

Vegetation is the best enemy friends! They hide, cover when you can't see anything when prone.

TutSi added a comment.Dec 8 2015, 11:34 AM

Vegetation still change ballistic of MG or even tank rounds.

R3vo added a subscriber: R3vo.May 7 2016, 7:27 PM
R3vo added a comment.Dec 14 2015, 10:37 AM

In the following video, there is not actually a bush blocking the bullet.

Guess the geometry is not correct.

Those issues definitely have to go until Tanoa arrives. I don't even want to imagine how frustrating it will be fighting in the jungle.

@R3vo: yes this last example is very annoying. I have many times wasted multiple bullets before realizing I will never hit the target that I can clearly see through the branches.

TutSi added a comment.Dec 16 2015, 1:36 PM

I can only imagine this situation in real. Soldiers would be armored with bushes like here:

This issue is caused by the game's bullet simulation and some vegetation model geometries:
When a bullet enters a fire geometry (not the same as the visual one) of a bush or a wall for example, the bullet's new trajectory is calculated and it's teleported to the point where it exits the geometry. So if a soldier is inside an object, the engine just doesn't detect an impact, because the bullet simply teleports past all surfaces that could be hit.

As far as I can see there's 4 ways to improve this:

  • Change the way bullets are simulated. Which of course is not going to happen. Way too much work.
  • Prevent players from entering the bushes. I.e. add a solid block inside them. Although, this might also affect bullet penetration and vehicle impacts adversely. If it doesn't, it could work with some bushes which shouldn't be walkthroughable anyway.
  • Make the fire geometries more complex to lower the chance of being in exactly the right position inside them. I think right now some models are pretty simple solid blocks, which are very likely to manifest the issue. They could be more "hollow" to allow bullets to travel freely. Perhaps something like a cylinder with thin walls. This would probably need a new material too, since bullets would penetrate much lower distances.

More complex models might affect performance though.

  • Remove the fire geometries completely. This could work in some cases. You wouldn't see any impact effects like falling leaves, and vehicles wouldn't knock them over.

@greenfist: a good explanation of what is going on

  • Another solution perhaps: make the fire geometries not more complex or removed, but just smaller. With this solution it will be harder/impossible to stand in the blocked area while falling leaves and collision are still possible.
TutSi added a comment.Jan 7 2016, 4:48 PM

Or create fire geometries without "armor" - not changing trajectory at all - speciall group of FG for vegetation. How it was working before they applied it?

Koala added a comment.Feb 4 2016, 3:27 PM

Hello, according to the development branch that issue should be fixed in the latest 1.57.134311.

Please check this out and write a response.

I tried with two bushes known to have this issue. Neither made the unit invulnerable any more.
If the fix was some sort of global tweak to materials then I assume all bushes are good now. But if they only changed specific model geometries, then we'll have test all the possible culprits to make sure this is truly solved.

Koala added a comment.Feb 4 2016, 4:15 PM

@ greenfist: Thanks for the information.

For now I will mark the ticket as resolved. If there are still any issues, please let me know.

TutSi added a comment.Feb 17 2016, 5:22 PM

Someone sayed on forum it is not fixed for explosive materials.... I need to check it.

StJimmy removed a subscriber: StJimmy.Apr 3 2017, 3:32 PM