Texture issues in Godot 4.3.dev2-mono

[Joxno]

Terrain3D version

v0.9.0 & a85d40c

System information

Godot v4.3.dev2.mono - Windows 10.0.22621 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2070 SUPER (NVIDIA; 31.0.15.3667) - Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz (16 Threads)

Is the issue reproducable in the demo?

Yes

Issue description

I recently upgraded a pathfinder project from Godot 4.2 to 4.3.dev2.mono and encountered a strange issue with the textures on the terrain not being applied correctly. When using the debug views to try and debug the issue the checkered debug view works just fine but the height texture debug view looks a bit strange as well.

All other tools and functionality works just fine, even colour painting.

All screenshots are from the terrain3d demo project for the purpose of reproduction of the issue.

Texture Height debug view

Here's a screenshot from the demo project using the default checkered texture rather than the debug view.

And here is a close up screenshot when using the default demo rock and grass textures

Logs

No response

[TokisanGames]

pathfinder?

They broke a few things in 4.3 shaders. I've noticed in the far distance there is some odd artifact like roughness is 0 or negative.

If you're feeling adventurous it would help get this fixed a lot faster if you bisected the engine from 4.2.1 to master/HEAD to determine which commit broke the shaders so a ticket can be filed upstream, or appropriate changes made here.

[Joxno]

Sorry, I just meant an internal project for testing out tech stacks and workflows.
I've compiled the engine at various points between 4.2.1 and 4.3.dev2 and stumbled upon that they made some refactoring to the rendering backend godotengine/godot#83452 as well as a possibly related issue godotengine/godot#86628

I've now compiled the current head as of writing: 5034478 and the issue reported in this ticket seems to have been resolved.