VCM test

[Polymax]

1. PT+PT
2.VCM
3.Bidir

[Captain Obvious]

That's a pretty substantial difference, and a pretty substantial render time too. Do you have Maxwell, by any chance? If not, any chance you could send the scene and I could give it a try.

[maru]

found a bug (I think so) : when rendering a region with VCM it behaves strange

[iliyang]

Thanks a lot, Polymax!

[Ondra]

found a bug (I think so) : when rendering a region with VCM it behaves strange

Small region, I assume?

[maru]

Yes, a small region. Here's a render. Second one has a small region rendered at the top corner of the water tank. It's after more than 3000 passes and more than 1 minute of rendering. Also, it looks like VCM isn't very good for glossy refraction.

[Bzdashekzapadlovski]

After opening your scene, found some changes in the Render setup.
What's this?

[maru]

It's a secret feature no one but trusted alpha testers should have seen. :/





But really it's what appears after you select bidir/vcm from "renderer" dropdown.

[quizzy]

some scene I did for a MR book written by a friend of mine now coronized......

both rendered for 23 minutes.....

[maru]

Looks like your water has no refraction.

[quizzy]

it does have refraction, but with an IOR of 1, because I did not want to distort the concrete beneath the water..

[maru]

That's what I meant. Used wrong words. :)