https://docs.godotengine.org/en/stable/tutorials/performance/optimizing_3d_performance.html
Optimizing 3D performance — Godot Engine (stable) documentation in English
Culling: Godot will automatically perform view frustum culling in order to prevent rendering objects that are outside the viewport. This works well for games...
optimizing 3d performancegodot enginestabledocumentationenglish