Working with a 2D sprite in a 3D Game

Getting Started
1

Hey Guys,

I am working on creating a 3D game with unity using 2D sprites as some of my players. I have them automatically “billboarding” towards the camera. Once in the scene, do they behave pretty much like a regular 3D object would? Can I use Vector3’s or normal 3D rigidbodys on them?

does anyone have an example game that does this that I could look at?

Hopefully I am on the right track.

Thanks guys…

2

Yep. You can even mix 2D and 3D objects however you like. To Unity, it’s pretty much all the same.

Have fun,

  • Joe
3

would you need to discern between 2d & 3d colliders when doing collisions & triggers? Eg the 2d object had the trigger & gets hit by the 3d then it uses OnTrigger2d but if it was the other way it would use the usual OnTrigger?

4

2D and 3D colliders are about the type of game, not the type of object. As in, use 2D colliders for a 2D game (eg. flat side or top view), but use 3D colliders for a 3D game (and that includes OnTrigger vs. OnTrigger2D). That is true for both meshes and sprites; you can have 2D sprites in a 3D game, and you can have 3D objects (just seen from one side obviously) in a 2D game.