Skydome + OSL HDRI and portal lights

[CiroCardoso3v]

Ok, I am not sure if this is a bug or not, but here it goes.

Interior scene - Lighting done with Skydome using a OSL HDRI Loader + Portals

This is how the render looks like with Skydome Samples 2 and no Portal Lights

And this is what it looks like with Skydome Samples 5 and with Portal Lights

And this is the Skydome with 20 Samples

Where is the scene:

[CiroCardoso3v]

Here is the link for the scene

https://we.tl/t-c4t9ObGRgl

[lee_griggs · Accepted solution]

I see an improvement using these settings:

[CiroCardoso3v]

Ok, so in this case the portal lights aren't contributing too much to clean the noise, right? I was expecting a cleaner result between no portal lights and with portal lights. Just wanted to check if I was missing something, or if this could be a potential bug.

[pproestos]

In my last project I do right now, I have abbandoned skydome and portals, using only an hdri environment map and imagers. I will post my renders when they're ready.

[lee_griggs]

Yes, I would still rely on diffuse samples to clean up the extra noise. The portals can only do some much as in the example here.

[CiroCardoso3v]

Yes, I am using a HDRI map on the skydome. You still need portal lights.

[CiroCardoso3v]

Great. Just wanted to check that. On previous projects, portal lights did help quite a lot, so I was surprise to see little improvement on this one.

[CiroCardoso3v]

Also this doesn't have any Noice applied. That will do the magic