Jetway hood animation problem

Hello everyone,

I have an issue with animating the hood of my custom jetway. As you can see in the pictures, the hood animates just fine in 3ds Max, but in the simulator, it has this weird deformation. Any ideas?

Screenshot 2025-12-25 173202

Screenshot 2025-12-25 173253

Anybody? ?

I had the same problem. It’s caused by some weights being assigned to the wrong bones

I’m currently figuring it out, as I have a more complex hood model

Can you elaborate a little bit more on that?

Leave the sim open with the jetway attached to the airframe to see where unwanted deformations are being created

If you enable mesh frame mode in Blender/3ds max, you’ll see that hood is cut at the bone joint levels. You first need to assign vertices to each bone at the same XY axis level. You can select a reference vertex that correctly follows the desired bone, copy its parameters, and paste it into the remaining vertices at once. Then, you need to select the vertices vertically and change their values to achieve the desired deformation result. You need to move the animation slider to check the result frequently. “Rotation_End” bone - assign a red color/value of 1.0 (maximum influence) to this bone for those places that will never move (at the very bottom and at the attachment point of the hood to the jetway model)

The more folds on the hood, the more time it takes to adjust, and the easier it is to get confused.
The main rules are:

  1. The bone influence limit should be set to no more than 4;
  2. Six bones are used for the hood animation. All transitions between weights should appear as a gradient;
  3. The weight on one or more vertices can belong to several bones (0.3 on one bone, 0.4 on the second and 0.3 on the third, for a total of 1)
  4. The number of bones that can affect one vertex is the parameter described in point 1

Start with assigning weights for each CTRL_Right1, 2, 3 ,4 bones