Higher noise level and render times with portals than without.

[lupaz]

Hi.

Could anyone check this scene to see why I get a higher noise level and render times WITH portals than without please?

[Link removed]

Really appreciate it.

[Frood]

Looked at it, intriguing. Have given up using portals a while ago, so I'm not entirely sure about what should be the result in current versions. But definitely not this :)


Good Luck

[Philip kelly]

I rendered it last night , and it was very noisy.
The lighting has to be the issue, have reset the rendering setting to default and see if that helps.

[lupaz]

I tried all sorts of things. Reset one of them.
Reset materials to grey.
Deleted all object that are on the way...
As far as I can see the portals are placed correctly. I re-did them a couple of times.
Nothing.

Tech support please?

[lupaz]

Anyone from tech support?
BTW I’m working with Max 2016 and corona 3.1

[romullus]

Portals aren't silver bullet. There are scenarios where they work great and there are, where they don't. If your scene renders faster without portals, then simply don't use them.

[lupaz]

Hm.
Ok. Thanks.

[Frood]

Romullus is right but this scenario is exactly what portals are made for imho. And there is no difference using sun&sky or some hdri in this (simple) scene - always worse with portals.


Good Luck

[TomG]

The link to the scene has disappeared - if it might be a bug, and Frood suggests it might be from when he tested it so it may not be a "I Need Help" issue any more, best thing is to open a ticket and upload the scene via our private uploader: https://coronarenderer.freshdesk.com/support/solutions/articles/5000524006-how-to-report-issues-3ds-max

[lupaz]

Ok. Thanks Tom. I will.