How i putting my map and object in my project

Unity Engine
1

How i putting that if i already make map in sketchup ( software for modeling building or something)
and how i put object (plus how i make) with adobe photoshop if i want make it in 3d

the tutorial i cant seem look how i edit it
sorry if i not see the tutorial if has that

2

Hey, your English is a little hard to understand, but maybe you’ll find some thing helpful here.
http://www.photoshop.com/tutorials?keywords=3d&sort=rating&product=all&difficulty=all