4.7 preview 7 lighting very slow (LPV enabled)
i have discover a problem with the dynamical lightning. I have migrated a project from 4.6.1 where a large terrain and some buildings are placed, all builings have dynamical point lights inside. Everything works smooth in 4.6.1 even near or in the buildings with the lights.
After i migrate the project to 4.7 preview 6 the editor stands nearly still cause it lags very heavy i am getting a new picture of the editor like every 20 seconds, if i am near or in a building where point lights are placed. (CPU usage around max. 10 %, RAM is almost complete unused).
All the settings are the same like in 4.6.1 (I am using LPV)
If i disable all light sources it runs smooth again like in 4.6.1. Only one point light is enough to make the editor unuseable. (In unlit mode everything is fine).
I was restarting the whole computer and after loading up the map again i recieve, an error from my placed blueprints in the map that the import of components like billboard component are failed, but everything works in the map. FPS drop from the lightsources is still the same.
I tested only the preview 6 of 4.7 so i dont know if the problem is new in this release.
Hey GreenWolf, Sorry you're having difficulty with this. I'm definitely interested in tracking down what may be happening here. I've not noticed anything similar with my testing of opening a previous version build with 4.7.
Would you be willing to share the project so I can have a look and see if I see the same results on my end? You can post a link here or shoot me a message via the forums to share privately if you can.
Just to be sure as well, if you create a new project in 4.7 p7 using LPV you do not see this issue, correct?
Also, if you disable LPV for your project that is sluggish does this resolve the issue?
Let me know.
answered Feb 13 '15 at 08:13 PM
Tim Hobson ♦♦ STAFF
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