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

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    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 RoccoFX; 11-14-2019, 10:44 PM.

    #2
    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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      #3
      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


      CEO of Prydetech

      https://www.artstation.com/ixicalibur

      Originally posted by ixicalibur
      Here you go, this is a link to every tutorial you could ever need plus instructions to access all the collective knowledge of mankind: [Super massive awesome link that every amazing game developer uses to instantly learn to be super awesome at making stuff]

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        #4
        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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