Need to understand how to use mask

[nezgro79]

Hi !

I'm sorry if I'm not clear,

i need to understand how mask one part of a mesh.

I need to make 3 boat simulation on a big ocean, one side I have a my infinite ocean and his shader other side my water, in water sim i can generate a mask to merge both ocean an water sims together

But how i put my mask on the ocean shader ?

Thank you

[nezgro79]

Help ? you know you can apply a geometry mask on mantra ocean shader.

How i can do the same whit Arnold ?

[nezgro79]

Hello i need help please.

Maybe i'm not clear but tell me ?

I'm working with Arnold please help me

[lee_griggs]

standard_surface.opacity?

[nezgro79]

HI i'm talking about this

[brian_Foley]

I don't think you can mask geometry in Arnold like you can in Mantra but you can convert it to a map. I think this is what you are looking for.

https://www.youtube.com/watch?v=rwzo8LD4Tac

[nezgro79]

Thanks i will try but ...