I’m doing some test with skylight portals rectlights, but still I have some doubts and I’d like to know the right way to use it. In first, Rectlight, never should be resized using Maya scale tool, but it should be resized using “U size” and “V size”, even when we gonna use it in Skylight portal mod…

I don’t think it matters anymore, but using the u/v size is the preferred method, yes. Skylight portals should be putted after or before the window crystal? (we’re talking with the camera in the interior of the scene)Technically, after is more accurate but there isn’t much of a difference. In …

Eeerr.. Appears Skylight Portals provoke noise, right?. How can we avoid it?. Appears, for rect lights in “Skylight portals” mode, the Shadow samples is disabled, and augmenting light samples neither help. Thinking about maybe Skylight portals get samples inherited from the sun (sky not haves any “…

good thread I have been wondering about these questions for a while. Can you post a screenshot Reaversword? I wonder about the noise and where it is occuring for you. One thing i noticed with simple portals is that they are usually much brighter than the regular ones but I guess this is understand…

Just increase the subdivs for the portal light. Appears, for rect lights in “Skylight portals” mode, the Shadow samples is disabled, and augmenting light samples neither help.This works fine for me. If you have a scene where it doesn’t work can you email it to me at vlado@chaosgroup.com ? Best …

I’m sorry for the late answer, some illness and fever this past days, now better. The images snivlem requested: We can see a more uniform illumination in the skylight portals one, and a less white-clamped areas, but clearly more noisy sofa in the zone of not direct solar light. The problem with t…

Maybe Vlado is best to answer this one. :slight_smile: But it looks like more sun shadow samples needed and more reflection glossiness samples in the couch??? Maybe subpixel mapping could help too

Sun Shadow Samples only fix the noise in the transition between the zone solar illuminated with the GI illuminated one. So yes, only in the borders of the direct sun. Respect the reflections of the sofa, its at 24, no reason for this. But I’m gonna try with subpixel mapping. Thanks for the interest…

Well, any reason/wrong set up in the scene for the skylight portal noise issue?

After encountering a similar scene with noise problem the last project I went and found this site maybe you have seen it but it cleared a lot of things up for me. http://interstation3d.com/tutorials/vray\_dmc\_sampler/demistyfing\_dmc.html Especially actually in that in cases scenes with higer qua…

Correct use of Skylight portals

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Reaversword November 29, 2011, 1:01pm 3

Thank you for the answers Vlado.

RT Not rendering anything?

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Correct use of Skylight portals

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