I'm creating a voxel game in Unity (sth. like Minecraft), and i've got a serious problem: There's no collision with backfaces (back, left and bottom block faces do not have collision). I've already tried switching all normals to positive or replacing left face with right face - 1.I think that Unity or physics engine recalculates normals somewhere, what makes backfaces come back.
PLEASE! Help me, my project is stopped for this reason and i've no idea!