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Can we use IES with spot light?
Posted: Wed Apr 21, 2021 4:11 am
by richardbao
i am testing IES with luxcore(not luxcore for blender) and found the way to use IES seems a little bit weird for me. i assume IES is generally for spot light, but in luxcore, the spot light does not support IES, and only emission material support IES. so i was wondering is there anyway i could use spot light with IES?
Re: Can we use IES with spot light?
Posted: Wed Apr 21, 2021 10:34 am
by Dade
richardbao wrote: ↑Wed Apr 21, 2021 4:11 am
i am testing IES with luxcore(not luxcore for blender) and found the way to use IES seems a little bit weird for me. i assume IES is generally for spot light, but in luxcore, the spot light does not support IES, and only emission material support IES. so i was wondering is there anyway i could use spot light with IES?
You need to use a point light source. It is actually the only really correct way to use a IES profile (because an IES file is the profile of the emitted light around a point).