Cabin walk-about collision issues

Hello,

we have a 2020 aircraft that includes a flight deck gltf model and a cabin gltf model using MergeModel logic in the interior.xml.

In MSFS2020, the user is able to open the cockpit door, then walk back into the cabin without any issues - on ground and in the air.

In MSFS2024, the user can walk up to and just about 50cm behind the cockpit door, but then is magically blocked from walking back into the cabin as if an invisible hand is stopping them.

However, when airborne, the same restriction does NOT apply any more - the user can freely then walk back into the cabin, no issues.

Does this ring a bell for anyone? This looks like a 2024-specific bug, but honestly, we can’t tell where the problem might lie…

@FlyingRaccoon @EPellissier @Boris apologies for tagging, but is there any feedback you could offer on this? It will come up and people are going to be upset they are blocked by invisible walls - the same collision mesh that works fine in 2020 is not working properly in 2024.

Also-

Just to make 100% sure -

is it the DRONE_COLLISION_IN mesh ONLY that’s responsible for the blocking, or are there other factors that might stop a camera movement, and if so, what would they be, so we can try to debug?

Some additional info-

our testers are reporting that if they start in MSFS2020 with engines running, the problem does NOT occur, but if they start in a cold-and-dark scenario at a gate, the problem also manifests there - in general the collision box is behaving erratically.

So - if you could let us know what factors play into the camera movement here, I would really appreciate it as we could direct our attention that way. Is it DRONE_COLLISION_IN that controls things only, or do other factors play a role? (i.e. boundingboxmin/boundingboxmax in mergeModel gltf files).

Hello @simfan

May I ask which aircraft we are talking about?

How is your collision mesh done? Is it a single mesh that you merge or you have split it between your cockpit and cabin gltf?

Regards,
Sylvain

Hi Sylvain,

it’s a mesh that exists in the cockpit gltf but extends beyond its normal boundaries, to cover the cabin itself as well.

@simfan,

It will be difficult for us to identify the issue without tracing into the code with the package loaded - can you name the aircraft if it is available on the Marketplace (in which case we already have access to it)? If it is not, is there any way you can send the package through Private Content?

Best regards,

Eric / Asobo

Hi @EPellissier

sent you the files through Private Content.

Thanks for checking!

@EPellissier to recap the issue:

using the default VC camera, turn around, click on the cockpit door - it will open and you will start walking towards the cabin. At some point, before the seats, you’re going to be blocked.

In MSFS2020, if you load engines running on runway, this doesn’t happen all the time. If you load Cold&Dark it happens.

In MSFS2024, it happens all the time.