UE4 4.27 Point light performance hit

Development Rendering
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1

Hi All,

I am having a performance issue, I have a road in my town that is followed by torches with a flickering light on each side, but having not even 8 torches takes my FPS from 75 to 17. any ideas on how to fix this? I have the light set to moveable and Source Radius to 250, Attenuation Radius is also 750. With the lowest shadow res scale and Max draw distance of 6000.

2

Are your torches point lights overlapping? I’m not sure the effect on dynamic point lights overlapping, but stationary point lights are limited to 4 overlapping without issues.