How to Increase the segment of the Octane Disc Light?

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How to Increase the segment of the Octane Disc Light?

Postby 911ljt » Tue Jan 25, 2022 4:32 am

911ljt Tue Jan 25, 2022 4:32 am
Hi

This problem bothers me for so long and I searched everywhere on Internet still cant find an answer.
As shown in the Screenshot. The Disc circle light edge is so jagged, I cannot find a way to increase the segment for that circle.

My old way is just using a Disc primitive, then use a emission material, but it renders much SLOWER than Original Octane Area Light. So I tend to not do that and its not very convenient.
I tried change the area shape to Object, and use circle spline. But No Luck.

Please dev help a brother out, or maybe just add an option in the Octane light tag so we can change the segment to make it smooth. Thank you!
PS: Same goese to Cylinder and sphere

Charles
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Screenshot 2022-01-25 122607.jpg
Last edited by 911ljt on Tue Jan 25, 2022 4:47 am, edited 1 time in total.
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Re: How to Increase the segment of the Octane Disc Light?

Postby 911ljt » Tue Jan 25, 2022 4:36 am

911ljt Tue Jan 25, 2022 4:36 am
Another way is do as following screenshot, Manully make a Gradient texture to cover that Jagged edge. But it is still an annoying procedure. Time is money
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Screenshot 2022-01-25 123504.jpg
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Re: How to Increase the segment of the Octane Disc Light?

Postby promity » Tue Jan 25, 2022 5:05 am

promity Tue Jan 25, 2022 5:05 am
Make a your own custom light source - polygonal.
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Re: How to Increase the segment of the Octane Disc Light?

Postby 911ljt » Tue Jan 25, 2022 5:47 am

911ljt Tue Jan 25, 2022 5:47 am
promity wrote:Make a your own custom light source - polygonal.


Thank you! As I stated it already in the main thread, it tends to render much slower than just the Octane light, and not a good workflow since you need a seperate materail.
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Re: How to Increase the segment of the Octane Disc Light?

Postby jayroth2020 » Tue Jan 25, 2022 6:20 pm

jayroth2020 Tue Jan 25, 2022 6:20 pm
Use a rectangular area light with a circular shaped texture in distribution. That will give the fastest rendering time and works for most situations.
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Re: How to Increase the segment of the Octane Disc Light?

Postby 911ljt » Wed Jan 26, 2022 3:34 am

911ljt Wed Jan 26, 2022 3:34 am
jayroth2020 wrote:Use a rectangular area light with a circular shaped texture in distribution. That will give the fastest rendering time and works for most situations.


Thank you Jay! Yeah it is a nice workaround, I wish C4d can implement an advanced area light so we can tweak more
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Re: How to Increase the segment of the Octane Disc Light?

Postby Tim_Twisted » Fri Jan 28, 2022 1:16 pm

Tim_Twisted Fri Jan 28, 2022 1:16 pm
jayroth2020 wrote:Use a rectangular area light with a circular shaped texture in distribution. That will give the fastest rendering time and works for most situations.


I get that this is the best option to use in this case, but doesn't this also 'waste' samples from the black part of the light? I once made a small spotlight which took way longer to render than other lights, and I thought this must be because of the amount of usable rays being way lower compared to a full white light texture/surface.
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