Investigate Tessellation Performance on Landscape

I have been seeing a few answerhub threads about very low performance on tessellation with landscape.

What is puzzling is that it does not seem to change performance whether low or high tessellation is used, or if distance based masking is used to reduce how much landscape is tessellated. Frame rate seems to plummet.

I think we really need to investigate how much work the tessellation shader does on terrain. It may be doing unnecessary work all the time.

https://answers.unrealengine.com/questions/210923/how-to-control-landscape-tessellation-with-distanc.html

A test level with some landscape tessellation is included in CL 3079376

i have this problem UE4CC-Windows-58DC12AF4B97F057BD108FBFF569B2E9_0000

Fix UE-51650

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I've been trying to follow demo for Unreal 4 where you create office but my unreal blanks out and crashes every time I try after I'm a few videos in everytime. It gives me a large error list everytime

I've been trying to follow the demo for Unreal 4 where you create the office but my unreal blanks out and crashes every time I try after I'm a few videos in everytime. It gives me a large error list everytime