Enviroment modelling issue

Unity Engine
1

Hi everyone

Im new to Unity and I have encountered some stuff I havent found how to fix them

One of them is when Im modelling an enviroment, to use as less geometry as possible, I use some planes for walls for example. The problem is that when I put them in the scene, the light passes through like there nothing there. These walls also dont project any shadow on the ground or object around them.

I found out that the wall should have some width, but these make them to have more geometry. Any suggestion to fix this?

Thanks

2

If you’re using the new standard shader in Unity5, you can set a material to be two sided so it will cast shadows properly. If you’re not using the standard shader, or Unity5, you’ll need to create a double sided shader ( just look up the forums, there’s plenty of examples of shader code that will do this for you.
Unity by default only uses single faces ( as it improves performance)