Granular in spot light

[koga]

Hello guys , how are you???

I have a question about the rendering of night scene.

I found the quality very good, but always get granular where i have light spot.
I am starting in octane, and would like to help me.


ps: Sorry for me english , its not my language.

[paoloverona]

did you tried increasing the samling of the spot lights?

[gueoct]

increase caustic blur!
Have you tried PMC kernel vs. Pathtracing, which one works faster / with less grain?

[gabrielefx]

pump the samples and use Pmc, no matter if you use the caustics blur option.
because ies emitters are lights that spread light from many points they generally produce a lot of noise

Use this trick:

apply the ies texture to a plane or mesh circle, it produces less noise. change the transparency to 0.

[HHbomb]

hello gabrielefx.
To change the sharpeness of the ies effect, you scale the mesh ?

[gabrielefx]

hello gabrielefx.
To change the sharpeness of the ies effect, you scale the mesh ?

yes!

[skibbbi]

I learned a lot of these videos

http://www.youtube.com/watch?v=kFaGfTWRus8
http://www.youtube.com/watch?v=pi_vSakdaig
http://www.youtube.com/watch?v=Tedj2lEKvuE