Da, ponql
IES -" Illuminating Engineering Society"
eto to4nie harakteristiki realnih izto4nikov svetlinii - luminous flux,luminous intensity,illumination,beam angle.
V Rhino 3.0 mojno zadati eti harakteristiki -"Select Light,Properties,Use IES" i ssimulirovati eti izto4niki. / tolko v Servise release 2,k sojalenii
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Izpolzuetsq eto v light design and light engineering