Smoothing

[ingoerik]

It seems that smoothing doesn't work the same way like it works in Modo .. or doesn't work at all ? Using the Modo settings doesn't do anything, the compatibility chart it says its not affected but it works, or so. So what do i do when i need smoothing ?

[vladimir.nedev]

1. If you are setting the smoothing angle/amount on a Modo material, you have to restart RT or make some edit to the mesh in order to see the change.
2. If you are setting the smoothing angle/amount on a V-Ray material, you have to disable/enable it, in order for Modo to update the normals on the mesh, and then restart RT.

The first issue could in theory be fixed by us, but it's complicated, it would be much nicer if Modo sends a notification that the mesh has changed, when it updates the normals.
I don't think we can fix the second issue without changes to the Modo API.
Right now a custom material (like the V-Ray materials) can specify a smoothing angle/amount, but cannot signal Modo that the smoothing angle/amount has changed.

Greetings,
Vladimir Nedev

[ingoerik]

Thanks, i am not talking about RT, i want to use smoothing with a VRay material in the normal renderer.

[vladimir.nedev]

Yes, even if you are not using RT, you have to disable/enable the V-Ray material, as otherwise Modo won't pick up the change to the smoothing angle/amount and update the smoothed normals on the mesh.

Greetings,
Vladimir Nedev

[ingoerik]

Hmm, smoothing is still a problem here, sometimes it works and sometimes not. I now had an object which rendered fine the last 3 previews but now doesn't show smoothing anymore. How can i fix this and bring back the smoothing to that object ?

And i dont really understand the smoothing multiplier, in Modo i can go from 0 to 100 %, how are similar settings in Vray ? From 0 to 1 ?

[vladimir.nedev]

1 is the same as 100%.
The smoothing is applied by Modo, not V-Ray.
It will sometimes not work if you don't have a 3D viewport open, so make sure you have one of these.
This is a Modo issue.

Greetings,
Vladimir Nedev

[ingoerik]

Thanks for the info, is there something similar like smoothing in V-Ray ?

[vladimir.nedev]

We rely on the Modo one, after all, this is part of the modelling process, where you define smoothing groups, etc.

Greetings,
Vladimir Nedev