Light row mesh only shows one node of multinode mesh (2020 compatibility)

[MSFS 2024] Bug Reports Airport & Sceneries
1

Version: 1.0.72.0

Frequency: Consistently

Severity: High

Context: FS2020 project opened in 2024 dev alpha, or FS2020 package in 2024 dev alpha community folder

Similar MSFS 2020 issue: insert url here if applicable

Bug description: Light row mesh now seem to follow vectorplacement rules of only showing one node in a multimode mesh, this may lead to 2020 light rows with custom mesh looking very wrong in 2024.
Maybe related, writing separate bug report: this leads to lights (that light up the ground) on light row meshes not working. Light row mesh not rendering light nodes? (2020 compatibility)

Repro steps: Check airport project sent to privatecontent. (At ENSH)

Attachments:
Image: Left side 2024, Right side 2020.
The first green and blue row is default taxi presets.
Next rows are:
3: custom rwy center line with mesh (multiple nodes + light nodes that light up the ground)
4: custom rwy edge with mesh (1 node + light nodes that light up the ground)
5: custom taxi with mesh (1 node)
6: custom obstacle light without mesh
7: custom PLASI without mesh.
Bottom horizontal row: The same meshes placed as scenery models.

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Private attachments: I will send test airport project with built package included to @ privatecontent

2

Hello @WombiiActual

Thank you for these very clean and detailed bug reports
Very much appreciated :slight_smile:

Not sure to understand what’s going on with lights with multiple nodes.
Is this box somehow coming from your gltf or is it something spawned instead of your mesh?

Regards,
Sylvain

3

Thank you for your efficiency in checking these.

Yes. In this case a box was added to the lamp mesh, below ground, to more easily control the LOD screensize limit, because of the very small size of the lamp. This box was not merged with the node that is intended to be the actual visible lamp mesh. That leaves multiple nodes in the mesh, and FS2024 only displays one of them, and in the wrong location.
(This one works as expected after merging the mesh, like it should have been, since it doesn’t have light nodes in the mesh like the one in the other post, but it is behavior that is different from FS2020 actual behavior).

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