Global illumination baked into lightmaps is actually static, but you can add some dynamics and ensure visual consistency by simply tweaking the Lightmap Color multiplier at run time.
More on using lightmaps in UNIGINE 2: https://l.unigine.com/WbqFQeotX
Download UNIGINE 2 SDK: https://l.unigine.com/qT4_sC6QJ
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