HtoA Set Parameter Operator not work for Material Assignment?

[Slava_91]

Hi,
I use Set Parameter for material assignment but shader cant be finded and render magnetta, if use asset "assign material", material assignment fine and without troubles.
trying path shader = '../matnet1/body/OUT_material' and shader = '../matnet1/body', with relative and absolute path
can't figure out where the error is
Thanks

[Stephen.Blair]

You need to use the shader name that you see in an ASS file.

That won't be ../matnet/body/OUT_material, it will be something like

/obj/matnet1/arnold_materialbuilder1/standard_surface1

[Slava_91]

yes, I try like this but it not work

[Stephen.Blair]

Please check a Debug-level Arnold log. That will show operator-related messages.

Most likely the selection expression is wrong.

For testing, try a different selection. Like one specific object, or all polymeshes