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how to switch lightmap to another?

Hello ~

I'm trying to create the BP to switch lightmap.

I created two different lighting condition, and am wandering if there is any possible way to switch between lightmaps.

Thank you.

Product Version: UE 4.10
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asked Jan 12 '16 at 09:18 AM in Using UE4

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desaicx
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HI Desaicx,

There isn't a way to switch out the lightmap for a specific object or scene in this kind of way. When the lightmaps are built for the scene these individual objects lightmaps are packed into a texture atlas with other lightmaps. The best solution as a possible way to test and experiment with would be to have the object setup as it's own level within the persistent map (Menu > Window > Levels) that can be switched out when needed. It can get tricky to setup and confusing if you have a bunch of objects, possible depending on some circumstances.

Thank you!

Tim

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answered Jan 12 '16 at 02:38 PM

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Tim Hobson ♦♦ STAFF
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avatar image desaicx Jan 14 '16 at 09:16 AM

I'm wandering if there is a good tutorial and documentation to learn level streaming.

Thank you Tim :)

avatar image Tim Hobson ♦♦ STAFF Jan 14 '16 at 05:04 PM

There is an example level in the Content Examples project available on the Learn tab in the Epic Games Launcher. This level can be dissected to see how it works.

One user posted an in-depth breakdown and setup for using level streaming manually that should help you get started as well.

https://wiki.unrealengine.com/Blueprint_Manual_Level_Streaming

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