question

I don't know Blender but, I think the animation mixing is a kind of Blender-specific abstraction, which other 3d programs also have but, when exporting any game engine, they aren't usually supported as they are, they must usually be "baked" into a single timeline with all the blending being done at the export level so, nothing of the original separate animations is left over in the exported file, just a single timeline. Does the Blender export has something like a "bake animations" option ?

Hi,

I made a flag with multiple NLA track and I never had an issue. I think you should not play with the mix

What I'll do:

Add an armature, then add actions but before pushing them I will add a track like this and select the track

With this method, I will have an armature with NLA tracks and all the tracks. And inside each track, my animations

hi guys, thanks for the suggestions.

The pose bake for all NLAs is partially decreasing the mixing issue between NLAs.

The issue is not solve though, NLAs are still get mixed up even if they all are baked resulting into a wrong animation behaviour.

As an example, imagine you push the joystick and the and the yoke moves but also the pedals because they have a bone in common (NLA add up the values to each other).
this is just an example and not the real case.

I expect some simple blending parameter to limit those NLA to mix in game but i did not find any, probably the Gltf2 exporter from Blender does not export such info correctly for the game.

Any other idea?

Hello everyone,

I need this issue to be solved, it is still not clear to me if it is a game limitation, a blender / exporter limitation or I am simply doing something wrong.

Whenever there is an armature which has one or more meshes parented to it (skinned or rigid) I end up having mixing animations in game.

I created a fake scene to show you an issue on a generic model:

https://youtu.be/cyyRgR7zh3U
You can see in red, all input pieces (joystck, throttle and pedals)
In blue, there is a human with full body armature, this means the bones will move the same mesh with every action but differently depending on the called action.
you can notice that while i move the pedals, the arms are moving, or if i move the joystick. the throttle will move.
Separating this in 3 armatures would help but it is not the solution I am looking for.

In Blender all animations seem right (I also baked them so there is no free interpolation).
if you export animations one at time, they will look correct in game.
If you export animations all at once, this will look mixed up in game (moving 1 arm will influence the other).
I am sure the issue is not the skinned/cloth mesh, becuase i am having the same issue with simulated rigid parts (like engine) where some mesh is shared between multiple bones.

I also added a default state nla in the last attempt, the issue is the same also without it

I am uploading the blender file + the in game package.
mixing_issue.zip
If any of you could please help, it would be awesome.
Thank you.

I had this issue with jetway hoods and after much troubleshooting I found a solution that works for me: Untick "Always sample animations" when exporting.

This tickbox wasn't available in the msfstoolkit/blender2msfs, so I edited the script files manually. I reported it as an issue and they've been very quick to fix it. You can try the updated version with checkbox added in this thread: https://github.com/tml1024/Blender2MSFS2/issues/5