Shadow bug on specific model's faces

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1

Godot Version

4.5

Question

Hello people,
I have this large island model made in blender that is having some shading issues. Specific faces are shaded darker and have weird lines going through them. You can see here:

image
image1368×657 29.5 KB

The model itself has all normals correctly facing outward, no double faces or disconnected faces. I have also applied all transforms, and cleared all custom normals. All faces are triangulated too. I have set the shading to “auto smooth” on blender before export. As for the texture, it is not affecting the result; I checked in godot the “view unshaded” and it display fine without lighting on the model.

I am honestly lost as to why this might be happening.
Any idea or things to try?

Thank you!

2

Looks like this one: 3D lights and shadows — Godot Engine (stable) documentation in English

3

That was exactly it! I had two shadows, one for the terrain and one for the detailed items, with different sizes. I had by mistake set the terrain to receive shadows from both, so the bias was incorrect for the size of the shadows.