0 votes

I'm making a 3D game where the action is taking place within an egg -- the players and enemies are moving around on the inner surface of the eggshell. I put an omni light in the middle of the egg hoping that it would cast shadows of enemies onto the inner surface of the eggshell so the player can more easily tell where they are in 3D, but it's not casting shadows. In fact, it's not lighting the inner surface of the eggshell at all -- the eggshell's inner surface will be lit by ambient light, but is pitch black if I turn off ambient light and depend on the omni light (which explains why it's not making shadows like I want).

The egg shell's material has Cull Mode set to Disabled so it's visible from within the egg, and all other material parameters are default. All of the other player and enemy objects are lit by the omni light just fine, and they cast shadows correctly on other objects. So I'm guessing this is an issue with the "wrong" normal surface of the eggshell being lit.

Is there a straightforward way to flip the eggshell normals to see if that helps? Or some other approach I should try (in case I decide to make action also happen on the outside of the egg and have both faces of the eggshell be lit independently)?

Godot version 3.3
in Engine by (29 points)

1 Answer

+1 vote

there is a setting in the mesh inspector "Flip faces". Use this instead of the cull mode.

by (4,088 points)

Ah, I was using a regular MeshInstance so I didn't have that option, but after seeing your reply I found that CSGMeshes have it. Switching my MeshInstance node to a CSGMesh and turning it on worked, thanks!

Welcome to Godot Engine Q&A, where you can ask questions and receive answers from other members of the community.

Please make sure to read Frequently asked questions and How to use this Q&A? before posting your first questions.
Social login is currently unavailable. If you've previously logged in with a Facebook or GitHub account, use the I forgot my password link in the login box to set a password for your account. If you still can't access your account, send an email to [email protected] with your username.