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UE4.24 - Static Lights drop framerate to 10 fps, why?

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  • replied
    same with me any solution???before lighting package is 160mb 50fps after is 220mb 30fps.

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  • replied
    Actually it worked backwards, adding static lights had a hudge impact in UE4.23 after building lights, just adding a simple point light, change to static light and build lights, lowered my fps to 10, what i did to fix it is change that point light to Dynamic, and fps was restored at that área.

    First i was not sure why fps was dropping so hard at a certain área, so i started checking optimization modes, and light complexity showed a hudge round patch, after checking, that round thing was because of the light, i deleated it and fps was restored. then i changed all my point lights to Dynamic.

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  • replied
    did you build lighting? static lights act like movable lights when they are not built. using a dynamic light on 100 objects will have a performance cost, thats just how it is.
    https://docs.unrealengine.com/en-US/...ows/index.html

    https://docs.unrealengine.com/en-US/Engine/Rendering/LightingAndShadows/LightMobility/StaticLights/index.html


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  • replied
    Search about shadows options, i suppose may be a problem with shadows generation or if you add reflection sphere into the scene it can do fps drop.
    post a scene screenshot to have an idea.
    These are only 2 ideas i hope can help you.

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  • started a topic UE4.24 - Static Lights drop framerate to 10 fps, why?

    UE4.24 - Static Lights drop framerate to 10 fps, why?

    Hi, i added some lights inside blueprints to iluminate caves with static lighting once a character is near "overlap".... but… for some reason, framerate drops as low as 10 fps; i simply deleated those lights an the problem was fixd, how to use static lighting without fps drops?

    Now i might have 100 trees in that area, but i canot add 1 light LOL
    Last edited by DraxFX; 11-14-2019, 10:44 PM.
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