Hi all, I am working on a big international project and I am having some issues by using IES file information in Corona. I really need an accurate simulation but I have some strong doubts on how the engine treats the IES files and their intensity values.
In the past years I always used the native 3ds Max photometric lights where once loaded an IES file, the intensity values are driven automatically so the "cd" and "lm" values are written as in the file by the manufacturer.
In Corona of course this doesn't happen, so the user must manually do this and here is where I find a big difference or BUG?!?!?
Take a look at the IES Comparison image I uploaded here, the 3ds Max Photometric Light reads automatically and correctly the "lm" value. Now if we want to get the same result in Corona the "lm" value has to be set too way low?!? How this is possible? This kind of difference is very important for a natural based result!
The IES file has a 2.217,831lm value and Corona must be set to 47,123lm for the same intensity result!
Also in the 3ds Max Photometric Light's menu, if you change from "lm" to "cd" the values are correct but in Corona, if you change from "lm" to "cd" and you put manually the values from the IES data information, the result is different! O.o
I included a iGuzzini IES file here and from the IES info I read:
5.129.6cd which are 2.291,772lm
In Corona, 5.129.6cd has different intensity results if compared to 2.291,772lm. What a mess... :(
Looking forward for an answer.
Thanks,
Dionysios -