YBN

Explaination

YBN is one of the formats used in GTA V. It declares static collisions with connection of a .yft.

There're two types of YBN's:

Low Details	High Details
name.ybn	hi[at]name.ybn

Those collisions are formed by primitive shapes and low detailed shaping of the original form (See example)

Example

YBN's are used for vehicles, buildings, general enviroment and weapons.

Tools

Preview	Editing
OpenIV	3ds Max (GIMS Evo)[1]
	CodeWalker
	zModeler3

1. It only allows the moving and deleting. Editing based on Polygons is only available in 3ds Max & ZModeler3.