Hi PCS
Amenmoses is on holiday
this would not be possible with the textures because the .dbo file is not dynamic i.e once its created it does not change unless you delete it, the only viable way would be to have two models and switch them out with a Lua script you could tie it in with the day / night script so model 1 without emissive is the day model and model 2 with emissive is the night model.
I think amen as a 'asset' swap script somewhere I'm sure he has
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