No volume properties in Material tab Surface

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No volume properties in Material tab Surface

Postby J.C » Wed Mar 13, 2019 5:45 pm

J.C Wed Mar 13, 2019 5:45 pm
Going to > Material tab > Surface rollout does not show Volume shader properties. Doing the same with any other Shader all properties are available.
CPU – i7 8700k 4.8Ghz + 64GB RAM, GPU – 2xGTX 980 Ti, 2xRTX 2080
System – OS X 10.12.6, Windows 10, Octane 4/2018, Blender Plugin 16.x.x and 17.x
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Re: No volume properties in Material tab Surface

Postby ChrisH » Wed Mar 13, 2019 9:42 pm

ChrisH Wed Mar 13, 2019 9:42 pm
Can you show some screenshots?
It's not clear what you're referring to (There is no "Volume Shader" in Octane, and I can't see any issues with mediums in the Material tab).
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Re: No volume properties in Material tab Surface

Postby J.C » Thu Mar 28, 2019 10:05 am

J.C Thu Mar 28, 2019 10:05 am
volume properties missing.png
CPU – i7 8700k 4.8Ghz + 64GB RAM, GPU – 2xGTX 980 Ti, 2xRTX 2080
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Re: No volume properties in Material tab Surface

Postby ChrisH » Thu Mar 28, 2019 4:16 pm

ChrisH Thu Mar 28, 2019 4:16 pm
The Volume input of the Material output node doesn't do anything (neither does the Displacement input).
The Volume input of the material output doesn't have matching node/setup in Octane, you should be able to see this if you take a look at the generated NodeGraph (It will be there, but not connected to anything), and you shouldn't see the result of it in the viewport (right!?). (Also, technically: "Volumes" are called "Mediums" in Octane).

You have to connect your Medium node to a Material/Shader node (like Specular) to use it.
Octane_Volume.png


(I guess the devs just copied the Output node from Cycles and left "Volume" and "Displacement" there..)
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Re: No volume properties in Material tab Surface

Postby linograndiotoy » Tue Apr 09, 2019 1:51 pm

linograndiotoy Tue Apr 09, 2019 1:51 pm
Bartek is right, Volume should show up in the Material tab, since it's actually used to define Smoke and OpenVDB shading.

Thanks for you report, Bartek!
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