Directional Plane and Disc Lights

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DartFrog
Licensed Customer
Posts: 149
Joined: Fri Oct 18, 2013 8:54 pm

At the moment, octane does not have directional light support. I do not mean IES, but directional plane and disc lights. Vray, Corona, Fstorm, and probably more, all have directional plane and disc lights, and it makes life so much easier. Do you plan on adding this functionality? If so, when? It can't be soon enough. Currently using IES for any sort of directional light adds so much noise into my scenes, that they become almost un-usable, and then I have to waste hours trying to balance light samples across all of the lights in my scene so that the noise clears up some what faster. Hopefully this will be added soon.

Thank you!
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paride4331
Octane Guru
Posts: 3808
Joined: Fri Sep 18, 2015 7:19 am

Hi DartFrog,
why not use black body emission or texture emission, what is not functional with them?
Regards
Paride
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
DartFrog
Licensed Customer
Posts: 149
Joined: Fri Oct 18, 2013 8:54 pm

How exactly would you control the angle of direction of a plane or disc light using the Black body or texture emission? In most other engines it is way easier and user friendly. I've attached a screenshot to display what I mean. In the vray example, the angle is controlled by a linear value from 0-1. In other engines It's in degrees. Either is fine just as long as the functionality is there and clear.

Thank you
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Directional Lights.JPG
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paride4331
Octane Guru
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Joined: Fri Sep 18, 2015 7:19 am

Hi DartFrog,
you could use this solution, without using IES, customizable and noise free.
Regards
Paride
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01.jpg
lux.zip
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2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
DartFrog
Licensed Customer
Posts: 149
Joined: Fri Oct 18, 2013 8:54 pm

Thanks Paride, I'm glad to see there's a work around. Is there any chance that there will be a much more user friendly light direction slider in the future? I don't think most people would be able to figure this out on their own.
DartFrog
Licensed Customer
Posts: 149
Joined: Fri Oct 18, 2013 8:54 pm

paride4331 wrote:Hi DartFrog,
you could use this solution, without using IES, customizable and noise free.
Regards
Paride
Also, would you be able to post the settings you used in the falloff, gradient texture, black body, and material? I'm attempting this in a scene and I can't quite get this working. Thank you!
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paride4331
Octane Guru
Posts: 3808
Joined: Fri Sep 18, 2015 7:19 am

Hi DartFrog,
hope this helps.
Regards
Paride
Attachments
02.jpg
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
DartFrog
Licensed Customer
Posts: 149
Joined: Fri Oct 18, 2013 8:54 pm

Thanks Paride, that definitely does.
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