Hello,
How can we achieve this thing ?
By the way, if i put a susbtance on two different objects, when i modify the parameters for one object it modifies also for the other object.
If I select the substance in the ‘Project’ Panel and I make ‘+’ to duplicate the substance …I can modify separately the substances ?
Is this have less performances ? What’s the good method ?
Thanks in advance.
Yes, this is the right way!
Substances don’t affect game performances (I mean freamrate) because it require some CPU power only for generation process.
Then if you don’t modify any parameter at runtime you just pay only some CPU time once for each substance material in your scene.
Cheers,
Kenshin
Ok thanks for the quick answer 
I just wanted to be sure that Unity didn’t create two things uselessly