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Is there a way to selectively ignore lightmap creation for objects?

If I have a level that is working great but I need to make a single object change, rebuilding all the lightmaps would be a waste of time.

How can I get UE4 to just rebuild that specific object, especially if it is within a separate room of the same level and won't affect all the other rooms?

I am assuming that since UE4 atlasses the lightmaps, that this might not be possible, but its worth a shot to ask you all :)

Along the same lines of thought, if I decide I just want to make a texture change on an object, does UE4 bake the GI into a separate Lightmap compared to the shadow? Looking under the global world lightmaps heading, it appears that the shadows are separate from the GI. Can I tell UE4 not to build shadows maps but just update the GI for that specific area in the level (i.e. room)?

Product Version: UE 4.10
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asked Mar 26 '16 at 05:19 PM in Using UE4

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avatar image twenty one Mar 26 '16 at 08:10 PM

i know that feeling when im working on one of my levels it takes about 8 hours to render the lightmaps so i also hate adding anything into my levels. but sadly no there is no possible way

avatar image Haskellf Mar 27 '16 at 03:40 PM

Thanks for the reply. Lets hope there is a way in the near future or at least an option to turn atlassing OFF.

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I guess the answer at this date is No, you cannot selectively ignore LightMap creation for objects.

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answered Mar 27 '16 at 03:43 PM

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