Diffusion Panel

Maxon Cinema 4D (Export script developed by abstrax, Integrated Plugin developed by aoktar)

Moderators: ChrisHekman, aoktar

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mitchino
Licensed Customer
Posts: 450
Joined: Thu Jul 14, 2016 4:49 pm

I was watching a Modo tutorial where the tutor set up a plane with a semi translucent /frosted material behind a product and shone a light through it to produce a nice graduated background. The sort of thing you might do for real in a photography studio.

Is it possible to do a similar thing in Octane? How would it be done?
rmara
Licensed Customer
Posts: 82
Joined: Fri Aug 04, 2017 1:06 am

Very likely with the specular material playing with the roughness channel for opacity
or/and the transmission and medium channels for the way light goes through the wall, but I guess without forgetting that the wall should better be thick object (e.g. a cube rather than a plane).

But being a recent user of octane It should be asked to pros ;) ...
rmara
Licensed Customer
Posts: 82
Joined: Fri Aug 04, 2017 1:06 am

Is this the kind of effect you had in mind ?
It's just a quick simple setting with three lights,
one being behind a "frosted" specular material with just a turbulence noise
plugged into a gradient in the roughness channel...
Background test.jpg
Background test 2.jpg
mitchino
Licensed Customer
Posts: 450
Joined: Thu Jul 14, 2016 4:49 pm

Thanks guys, that is the kind of thing - I put some roughness in the spec channel and it's working nicely. I'm using it with an octane light behind so that one edge of the light is touching the diffusion and one edge is rotated away, it gives you a nice gradient fall off in reflections.
rmara
Licensed Customer
Posts: 82
Joined: Fri Aug 04, 2017 1:06 am

Consider also you can use the medium and transmission channels with colored gradients, and it can give you some depth and subtility in the background material...
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