Lighting doesn't show up on meshes properly

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1

Godot Version

Godot 4.4 stable

Question

Hey everybody! I am trying to make a flashlight for my game and I’ve encountered an issue where the lights (omni-light and spotlight) wouldn’t render properly on my meshes. I’ve tried CSG shapes, Mesh instances, and Blender Obj’s & GLB’s, and they all have produced the same result. I’ve also tried changing the material but I also got the same result. I am using forward+ rendering, my lights have shadows enabled, I’ve tried to search for a solution but have yet to come across one. What confuses me the most is that the directional light doesn’t seem to have this problem.

THE PROBLEM:
The light only gets displayed on one triangle face of the csg box depending on my distance from the object (so it lights up properly in rare cases). The video shows me using a spotlight to try to light up the box.

Link to the video: https://youtu.be/eilUGSnBHS4

2

what is your hardware?
this looks like you using a GPU that doesn’t support vulkan or opengl.

those are not shadows, that’s shading. if the mesh has too few polygons, in this case 6-12, the shading problem will appear.
with default meshInstance3D box the faces are flat, so it should not happen (do not use premade meshes or CSGs in the final version of your game).

also there is not sun or ambient in your scene, you need to add it.

3

Ohhhh thank you, the mesh polygon count was the problem. I was trying for so long to figure out why it didn’t work.