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Lighting only view mode and performance questions

Hello,

After building lights I used the lighting only view mode and I get this : https://gyazo.com/f3dc8be41b556a08e85a82e4822560cc Other room are like this : https://gyazo.com/a14c08b764ee537005d2147d4c24e6f0

In the first room (from the first screen) I got bad performance in VR. Everywhere I've 11ms latency for the frame and 22ms for the gpu BUT in the first room this gpu number goes up to 30/33ms when moving the head. I used the gpu profiler and saw that light where causing an huge cost but not more than in other rooms.

https://gyazo.com/68296f99efb641021e010a0ed3088ffb https://gyazo.com/3d96271d93aba827d499bcaec2be05b7

Is the light causing the latency problem ? Meshs ? Why my meshs disappear in lighting only view mode ?

Thanks

Product Version: UE 4.13
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asked Dec 02 '16 at 05:22 PM in Rendering

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Diem
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