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Fixed in 2017.1.0f3



Found in


Issue ID




Baked lighting data lost after rebake in copied scene

Progressive Lightmapper


To reproduce:
1. Open attached project
2. Open scene, bake lightmaps
3. Make a copy of scene
4. Bake lightmaps in the copy
5. Lightmaps in original scene are removed

Inconsistent with navigation system.
This workflow worked fine in 4.6

Comments (3)

  1. shubhamswaraj2021

    Aug 19, 2020 13:21

    good one <a href="">lyricsauto</a>

  2. fivekoto

    Jul 15, 2017 00:07

    I have the same issue in Unity 2017.1 and script cant help any more.

  3. Mirapa

    Sep 22, 2015 15:46

    I'm afraid this very bug bites us quite hard; we have multiple levels situated in the same location, and of course the scenes are copies of each other; and every time a project is built, every single lightmap is recomputed. This costs quite lot of time (5 hours of building instead of a half an hour with Unity4).

    I see there is a note "workaround is possible" - please, can someone describe the workaround? (I sincerely hope the workaround is not "rebuild the second scene from primitives and prefabs", I doubt I would survive telling this to our level designers :-) )

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