Some simple notes on rendering distance with Fog and Skyboxes. Did you know Skyboxes increase the rendering distance? thus dropping FPS in complex areas? It might sometimes be more optimal to not use a skybox, or tune the fog distance to help with skybox coverage.
The default render distance (of tiles etc.) is the Fog Clip Distance. Usually people leave this at around 45M which is the default range dynamic placeables pop into life.
Example removing the skybox from an area in the OC a lot less is shown and FPS is a higher 90-96FPS.
These settings mimic the skybox (+90M, so 135M total) but with no sky has less "covered by fog", while the same geometry shows up. However of course there is popin on creatures etc. and the same FPS as the Skybox 45 + 90 example.
Once a Skybox is turned on the tile and static placeable distance is increased to allow a Silhouette to appear properly. This increases the fog clip distance value by 90M.
The fog still eclipses a lot of this by default - it'd have to be extended, but again since dynamic placeables (and creatures) render at a lower distance you'd need to experiment to make it look good.
In the below example the Chapter 1 main City Core area gives me 60FPS and the distance has more buildings.
A more extreme example, this would pretty much on this map render the entire level. 135M + 90 = 225M (22.5 tiles) render distance. This has even more geometry - but at this size of level barely affects the FPS it seems. On a larger level it would affect it quite substantially.
