Clear lightmap but the size of map doesn't reduce

Development Rendering
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1

I followed the link below to clear the lightmap, and it works.
I checked bForceNoPrecomputedLighting and rebuilt.

[Can I delete lightmaps from map file?][1]

190910-lightmap.png

The original size of map is 159 MB, and it will be 399 MB after building lighting.

Then I clear the lightmap, but it still be 399 MB.
Is that normal?

2

After building lighting more times, the size of map would be correct…

3

Hi, when I try to rebuild the lighting after checking Force no precomputed lighting, the light fails to build. How to solve this?

4

Hi,

If you wanna clear lightmap, you have to check Force no precomputed. If you wanna rebuild the lighting again, you have to uncheck Force no precomputed.