"Look down from in high places..."
The last few times on the Grid I've spent much of the time hundreds of meters in the air. I hesitate to call it a skybox, because it's not a box; it's a square plot of ground (with grass!) floating in the sky and fenced on three sides.
There's nothing to render there but the two of us... and this morning I came close to 30 fps. Animations are truly amazing under those conditions.
It makes me want to not come back to the ground.