Yes, it was meant with a camera without Collision. But of course, we cannot expect that a snippet like this is better than lara crofts camera. They also fade a mesh to transparency if the camera is inside it - but this would only make sense if culling is off. It depends on the kind of Geometry. If the camera is inside a Pillar then it's ok as long as you don't see the ground, especially when the Pillars bottom is looking like a hole in the Ground.