Can't see floor and roof of my rooms mesh.

Unity Engine
1

Im pretty new to unity and 3d all together and am trying to create a basic level in cinema and put it into unity for a walkthrough.

I am able to import the mesh and place it into the scene in unity and it appears normal, but once i go inside, the floor and roof goes invisible, also when i place a FPS controller inside it simply falls through the floor.

I tried putting the fps controller on top of the mesh, as if walking on the roof to make sure the colliders were on and it worked, i just cant seem to make it work as a room.

What am i missing?

2

Welcome to Unity and 3D game making in general :wink:

This is the number one FAQ on this forum for beginners and it’s an easy mistake to make. The inside of your room needs some geometry where the normals ( Normal (geometry) - Wikipedia ) are facing inwards. Unity, and most game engines, do not render both sides of a polygon by default.

3

Thanx for the reply.

How would i got about setting this up in cinema 4d?