Vulkan: Tilesets light occlusion leaks

[jruiss]

Godot version

v4.0.alpha.custom_build [5c54770]

System information

Windows 10, GTX 1050ti, GLES3

Issue description

Tileset light occlusion leaks through

Steps to reproduce

1. Create a tileset with a occlusion layer and a tile covered completely by occlusion rectangle
2. Place multiple in a row in a tilemap
3. Create a light with shadow

Minimal reproduction project

tilemap_example.zip

[Calinou]

Can you reproduce this when using the same Sprite2Ds and LightOccluder2D nodes placed manually? This is likely a duplicate of #55806.

[jruiss]

Can you reproduce this when using the same Sprite2Ds and LightOccluder2D nodes placed manually? This is likely a duplicate of #55806.

Yeah, the light occluder node got the same problem

[groud]

Yeah, I noticed this issue too when working on the TileMap stuff. From my testing, the bug is indeed due to issues in the rendering server internals and thus impacts all LightOccluder2D.