Star Fox 64's stages are made of many reusable parts.
These parts are grouped into several different categories:
	-Scenery = static environment objects, such as hills
	-Sprites = objects that use billboarding, such as poles
	-Actors = enemies and objects with fixed behaviors
	-Bosses = boss battle triggers
	-Items = static items, also path-related triggers
	-EventActors = enemies and objects with complex scripted behavior

Ground planes are not part of the map data.
Instead, ground planes are automatically placed based on the player's position.
For on-rails mode, the ground follows under the player and scrolls its texture.
For all-range mode, ground pieces are placed in a grid near the player's position.

Please note that the positions, rotations, or scales of objects in the map may not be literal.
Some objects may use those values as parameters for their code and override the values.
For example, the pillars in Titania use their X rotation angle as their falling speed.
So if following the map data exactly gives some weird results, that is why.