Quote - i think perhaps you're misunderstanding what these different tools do.  Matmatic is a mathematical interface to the Poser material room.  it helps you to create relationships among nodes programmatically.  so if you wanted to create a perfect skin shader, Matmatic is the perfect tool .

Yep, that's pretty much what I thought it was, too. I want to use it not just for skin, but also for other surfaces. When I look at what face_off's tool creates but also the complexity of those nodes... ewww, too much work manipulating them manually. I want to do it programmatically.

Quote - VSS or the Versatile Shader System, is an interface for controlling materials.   so if you want to actually control how the skin shader is applied to the figure, you should use VSS.

Quote - ... perhaps i've misunderstood (completely possible), but i think you shouldn't be using the collections to manage materials any more.  i believe that bagginsbill's intention is you should use the VSS control prop to control them.

I was following the www.runtimedna.com/mod/forum/messages.php Ultra Basic Shader tutorial on the Nodes Cult forum on RuntimeDNA and went aground trying to create a class based on the example in the documentation on creating Collections. In the error message generated by the compile.py script I see a reference to Poser 6 and can't help but wonder if therein lies the problem.

I haven't found the thread where BagginsBill suggests using VSS instead of creating a Collection - you wouldn't know which one that was, do you?

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

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[it is clear that humans have contempt for that which they do not understand] 

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