If not what is the best way to get rid of this? I'm thinking of just encasing the tunnel in a solid wall to block the light, any more efficient way?
Thanks.
If not what is the best way to get rid of this? I'm thinking of just encasing the tunnel in a solid wall to block the light, any more efficient way?
Thanks.
that's exactly what you should do. not only will it block light, it will also block vis, and should help give you better framerates. as no-one will see the walls that you make, you should cover them with the 'nodraw' texture.

