So there is this modo trick to have multiple surface generators on one mesh (in my case I have one for big droplets on a surface and another for the very small ones).
The trick here really is to duplicate the mesh of the 'Point Source', give the new mesh a new material and a second Surface Generator. And finally give that new material a new Shader element, turn off all the visibility options and drag the whole group over the main Shader in the Shader tree.
So the trick is to make an exact duplicate of the mesh and make invisible for the renderer. At least modo's renderer.
It doesn't really work with Octane plugin. I've tried setting the material parameters (both modo and Octane override) to Dissolve, Transparency=100%, Opacity to "0" etc. etc. I tried setting the mesh to "Not render" and in the Octane Mesh to Camera Visibility to "uncheck". Nothing works. Octane sees the duplicated mesh all the time and renders it out with errors.
There is a kind of a workaround - If you give both the meshes the exact same material (not the same material mask!, but the material parameters like color, roughness etc.) the errors don't show. But that duplicated geometry is still there ... and it makes me uncomfortable
It's a hussle when you want to play with the material setting because you need to do it twice every time.
I can not just turn off the second mesh in the Item List because then the Replicas also are turned off
anyone?
TY Paul, you save the day once again.