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Unity - Scripting API: LightmapParameters.limitLightmapCount
Version: Unity 6.5 (6000.5)
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    LightmapParameters.limitLightmapCount

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    public bool limitLightmapCount;

    Description

    If enabled, objects sharing the same lightmap parameters will be packed into LightmapParameters.maxLightmapCount lightmaps.

    This setting can be used to limit the number of generated lightmaps. This is achieved by iteratively scaling down the UV layouts until they fit into the specified number of allowed lightmaps.

    Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

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