Occluded terrain continues to render strips of itself

[galsjel]

Terrain3D version

v0.9.3a

System information

Godot v4.4.dev3.mono - macOS 15.1.0 - Multi-window, 1 monitor - Metal (Forward+) - integrated Apple M1 Pro (Apple7) - Apple M1 Pro (10 threads)

Is the issue reproducable in the demo?

Yes

Issue description

Strips of the terrain are still rendered when they should be occluded.

1. Open demo
2. Enable occlusion culling (Project > Project Settings... > Occlusion Culling > Toggle Use Occlusion Culling
3. Add OccluderInstance3D to the root node of Demo.tscn
4. Select the new node and in the 3D view press Bake Occluders
5. Run the scene and venture to the tunnel
6. Use F10 to switch to wireframe mode and observe landscape through the tunnel walls

Logs

No response

[Xtarsia]

The strips you're seeing here are the L-Shape trims that rotate to fill gaps between LOD levels as they snap in place at different intervals. The L shape meshs essentially have an AABB that covers the entire size of that LOD.

THere are some improvements being worked on that will resolve this issue, as the L-Shape trim will be split into smaller segments.