I am generating my levels through GDScript by placing cube meshes next to each other. (Can't use GridMap for other reasons which I can explain if needed).
var tile = cube.instance()
tile.global_translate(Vector3(x, 0, z))
They are all on the same Y plane, but different X/Z positions.
Unfortunately, playing through the level using a standard camera, there is flickering on the surfaces of the meshes. Here's a video:
Some screenshots detailing the problem:
These lines usually appear for half a second and then go away, but creates a very jarring visual experience.
How can I fix this? Thanks for your help!