Operators - Collection

[CiroCardoso3v]

I want to use more Operators to control my scenes. Going to the next level, I have hope. For this particular situation, what I have is a massive scene, with trees, grass, forest pack, tons of stuff. Now what I need to do is adding some people, but I don't want to render the entire scene again.

I want to apply a shadow matte to everything except to those 3 or 4 models. In my mind it is easier to select everything and subtract those models and then apply the shadow matte.

My question is what parameter do I need to add to the Collection Operator for that to happen?

[CiroCardoso3v]

The same with me. If I try to apply a Map to Material it just stops working. It looks like a bug to me. Do you need more info to report that as well?

[Stephen.Blair]

@Ciro I was putting the wrong name in the selection. Putting the name of the Map to Material node doesn't work. You have to put the name of the node connected to the Map to Material.

Then 3ds Max was ok. I didn't crash with the Shadow Matte

[Stephen.Blair]

@Ciro
Are you using volumes or VDBs in that scene?
If so, it could be that the operators are being applied to them too

[CiroCardoso3v]

Thanks @ I will give it a go. No VDBs. The tree is an Alembic file and then the grass is a Forest Pack.

[Stephen.Blair]

Hi @Ciro
I didn't think so (VDB), but I had to confirm. Unfortunately your CER reports have the wrong symbols and make it look like VDB was involved.

If you can still reproduce the crash, a scene would be great...you can always send it to support@arnoldrenderer.com

Thanks

[CiroCardoso3v]

Still a little bit buggy the work with ARV and Operators, at least with the Shadow Matte.

Using the ginstances to apply to the Forest Pack. Sometimes it works, others times it doesn't. Gosh I really hate Forest Pack. We need Bifrost as soon as possible.

[CiroCardoso3v]

So, if the a Target node is active and you start ARV, doesn't apply the effect. You need to clear target and set target again.

[CiroCardoso3v · Accepted solution]

Ok, thanks to Stephen for the reply and help with this. A summary of the workflow

*.(@node=='polymesh' or @node=='ginstance') and not(name== '/model1' or name =='/dummy/*'))

Then to change the material and if you are using Shadow Matte, you need to assign the not the Map to Material node, but the Shadow Matte map.

shader="/shader_name"