Occlusion Culling

Development Rendering
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1

There is a system (or tool) for occlusion culling? CryEngine had a system for this, now is automatic. UE4 has some similar to this?

As test, I put a forrest of SpeedTrees on a 8kx8k landscape, and with my Specs (Dual GTX660 TI 3GB + 32Gb ram + i7) I have a poor FPS on playing on viewport. Something around 15 FPS. This is very ugly. When scene is completly finished, maybe we have a 8 FPS.

PS.: LPV + Fully Dynamic light.

Reference

2

Unreal 4 has an automated system for it, however, there is a Cull Distance Volume you might be able to use very well with your large open landscape.