RenderMask script no longer working with Vray Next?

[^Lele^]

You should contact the author.

[Pixelcon]

Takes him months to reply unfortunately...

[jedchambers]

Im pretty sure he has said that he doesnt use vray anymore hence not writing updates.

[^Lele^]

Unless he's formally abandoning the script, there isn't much we can do.
Even if he did, there is no guarantee we'd be able to make it work: the fact that it renders black is because we dropped support for the legacy stuff he was using, and there's a chance it may not work at all with VrayMtl or analogous.

[Pixelcon]

I think the last issue I had was that the script doesn't recognize vraybitmaps... and I don't have the expertise to fix that part of the script.

[^Lele^]

It's a fairly complicated bit of code.
For me, it didn't work whatever i tried, and threw no error whatsoever.
Debugging what is going wrong isn't going to be trivial, hence my calls to contact the author.

[algato]

Hello,
Vlado, Lele, Vray should always have its own solution for a fast generation of b/w masks for a selected object. It is not nice that we have to depend on the good or bad time availability of an external programmer.

Lele, could you write a script that does just that ?
That would be so good, many users would be very grateful to you.

Kind regards
algato

[^Lele^]

What are the most useful things the script did, when observed through today's set of tools V-Ray provides?

[Pixelcon]

A near-instant bw mask of selected objects (while preserving opacity maps).

[^Lele^]

That's one channel in the multimatte element, though.

[Pixelcon]

Yes I understand that, but we're talking about the scenario of having completed a render and while you're in post you might need a quick mask without having to mess around with renderelements and re-render the scene. Having to turn of lights, turn off this and that...it's a pain the butt.

Select your object. Click 'generate mask' or whatever. Bam. Instant mask.

[^Lele^]

All you need to do is to toggle the single "lights" switch in the render settings, add a MM RE, set it to the kind you want, and correspondingly set the material or object id.
Not enough work to warrant the undertaking of a script, for now.

[Alex_M]

I agree with Pixelcon. Unless I'm missing something, you can't easily replicate what RenderMask does with the tools currently present in V-Ray. You would need to do quite a bit of preparation in order to render out a BW mask after rendering out your image.

All you need to do is to toggle the single "lights" switch in the render settings, add a MM RE, set it to the kind you want, and correspondingly set the material or object id.
Not enough work to warrant the undertaking of a script, for now.

Interesting. I will try it out!

[Pixelcon]

All you need to do is to toggle the single "lights" switch in the render settings, add a MM RE, set it to the kind you want, and correspondingly set the material or object id.
Not enough work to warrant the undertaking of a script, for now.

Even with lights disabled, this is still going to be a significantly longer render than what the original script can do.

[^Lele^]

Why would it be?
Obviously if it's one node you're interested in, you can isolate it for the purposes of mask making.