Collada Export Setting

General

Normals	Write normals
UV	Write UV coordinates
Animation	Save Animations
Materials	Write materials or use default one

Advanced

Max face size	Defines maximum size of polygon to write. If polygon is larger, it will be triangulated
Trasform	Defines how to write object transformation Bake - bake transformtaion to geometry points Matrix - save transformation as matrix Components - P/R/S save transformation as Position/Rotations/Scale components

Textures

See Textures Export Settings.