Paper2D Performance from 4.19+

Andrei Simion
Tue, 08 Oct 2019 16:02:57 +0000
Rendering

Hello,

We’re now working on a 2D game called Unbound: Worlds Apart and we’re having some issues.
Starting with Unreal 4.19 and onward the FPaperRenderSceneProxy was modified to use the DynamicMeshBuilder and this seems to cause some performance issues.

I have two screenshots below, one in 4.18.3 and one in 4.19 with the same scene, both rendering around 500 sprites. The loss of performance comes from the following function: STAT_PaperRenderSceneProxy_GetDynamicMeshElements.

Do you have any idea how I could improve the performance?
I’ve looked in the FPaperRenderSceneProxy but it was heavily modified when transitioning from 4.18.3 to 4.19

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