Secret Openings in Solid Wall

Total beginner.

Any tips on making secret opening in solid walls or holes in floors?

Can you give a bit more info about the specific effect you’re trying to achieve? Are you talking about something like the old pushable walls in Wolfenstein 3D or something more elaborate?

Thanks for the reply!!

I did the project tutorial for Roll-a-Ball
http://unity3d.com/learn/tutorials/projects/roll-a-ball/moving-the-player

I want to gradually add to this project as learn more about Unity.

One thing I would like to do is have a few pickup items outside the wall, so I would like there to be an invisible opening in one of the walls the that the ball can get through. I also want to have some invisible holes in the floor that the ball will fall through.

In other words, I want the entire wall and ground to look solid but have areas where the ball go go through.

That should be pretty easy. You just need to use a different mesh for the collision component than for the rendering component. The rendering component will use what you have now, the collision one should be a mesh that has holes where you want them. Good luck!

Thanks for the reply!!
That gives me a direction to research.