Failure of Operators to Procedural

[saul.es]

MaxtoA 2023

Hi. I followed the next tutorial https://www.youtube.com/watch?v=kiP5mgP7jTM&t=284s
but it doesn't change the color/material/shader and applies magenta color

Also, i did the following ejercice https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_for_3ds_max_ax_operator_tutorials_ax_modifying...
but the same things happens.

Add the file.

[CiroCardoso3v]

Can you upload the Prueba_Operators_01.ass?

To make the Operator active you need to Set as Target Operator.

[saul.es]

Add the file .ass

[CiroCardoso3v]

I uploaded the new file.

So a couple of things to keep in mind when working with Operators. First, if you are assigning materials, keep in mind that in 3ds Max, if a material isn't assigned to geo, that material technically doesn't exist. So, when I need to assign materials, what I do is create a bunch of cubes or spheres and assign my materials. You will see that in the scene I uploaded.

The second thing is that you need to navigate to the selection you want to make. You had the /Esfera_03 in the selection, but you aren't telling Arnold where to find it. The correct way, in your case, is doing this

/Procedural001/Esfera_03

So, inside the Procedural001 select Esfera_03

The third point is that you need to use a merge node to merge all the set parameters nodes and then set that node as a target Operator

you can identify which node is active with the green outline

Also, keep in mind that ARV will not update sometimes, so you may need to restart the render view.

[CiroCardoso3v · Accepted solution]

Here is the file

[saul.es]

Thanks. I forgot to reply but thanks.

However, where can i find the expresions like

shader="/negro"
visibility=0

I read the arnold docs but i didn't found something or is programming languaje?

[CiroCardoso3v]

Is a mix of checking the documentation and the examples there, and asking here. But yes, we should have a list of the most used and useful syntax.