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Intensity falloff problem

Posted: Tue May 27, 2014 10:54 am
by Fabian-Eshloraque
Hi Guys,

I'm working with some linear and area lights that supposed to be LED bars. I use inverse distance to simulate the light effect.
lightwave_setup.jpg
It looks nice and correct in lightwave native:
LWtest.jpg
But with kray it looks that the falloff only renders from the origin of the light. It renders the inverse distance like a point light. It seems not to take in account the length and or size of the light from layout:
kray_light.jpg
Does anybody know how to fix this, maybe I have to change a setting...?

Grtz

Re: Intensity falloff problem

Posted: Tue May 27, 2014 11:45 am
by Janusz Biela
Everything is ok. Area Lights in Kray are control in QUALITY TAB by minimum/maximum recursion. To keep similar effect from LW you must increase min/max value for example in this case must be very high (minimum 3-4!) which make long render.

Here solution for you:
1. Instead complicate setting with Area Light use simple Luminescence panel. maximum power for luminescence light should be ~ 300%. If you want more light then use Area Light as support (it does`t need be same size and can be two or three of them - so they are will be less stretched)
2. Do not stretch Area Light strongly - it affect this problem with breaking light (you can increase quality of Area Light in Kray but this will make longer render)
3. The best in my opinion Area Light type is Inverse Distance v1.

Re: Intensity falloff problem

Posted: Tue May 27, 2014 12:52 pm
by Fabian-Eshloraque
Hi Janusz,

Thank you for the quick reply! I'm testing your lumi panel. This will be for an animation.

Grtz,

Fabian

Re: Intensity falloff problem

Posted: Tue May 27, 2014 2:55 pm
by Janusz Biela
Here small help with examples.

Re: Intensity falloff problem

Posted: Tue May 27, 2014 3:03 pm
by Fabian-Eshloraque
Cool! I'm checking the different setupsand this is very helpfull, thx!