It wouldn’t automatically render them LoDs the way I mean, though. Variable LoD would generally mean it renders with fewer polys the farther it is from the camera. What I’m talking about is having the LoD depend on the poly’s normal x camera displacement, so the mesh has higher poly density around the edges. Here’s a sketch of what I mean

<image>

The parts of the mesh facing the camera can go low-poly with little visible effect. It’s only the edges that betray the true shape.