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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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Volume Specular like in Houdini?

4 REPLIES 4
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Message 1 of 5
f.ribbeck
725 Views, 4 Replies

Volume Specular like in Houdini?

Hi,


I was wondering if it's possible to add a specular to a standard volume in Arnold, similar to this Houdini technique: https://vimeo.com/198434395


Is this possible at all with the current core ? So far the only solution I found was to use an OpenVDB mesher and render the volume as a mesh with specular, but then the volume's volumetric attributes of course get lost on the way.

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4 REPLIES 4
Message 2 of 5
Slava_91
in reply to: f.ribbeck

you can use it like in video you posted
volume for smoke and sdf for specular surface

Message 3 of 5
f.ribbeck
in reply to: f.ribbeck

Hi, thanks for your reply. I have used a volume_sample_float, but I don't know to what channel I should plug it in. In the standard_volme node there is no channel for specular and I can't pass the standard_volume through the volume_sample_float as well

In the Houdini video the specular sdf just seems to leave the screen, so I can't see where it goes and I must admit that I have zero Houdini skills...

Best regards!

Message 4 of 5
f.ribbeck
in reply to: f.ribbeck

Hi, thanks for your reply. I tried using a volume_sample_float to sample a specular channel, but I don't know where I should plug it into - the standard_volume doesn't have a specular input ..

In the Houdini video the specular sdf just seems to leave the screen, so I can't see where it goes. And I must admit that I have zero Houdini skills ...

Message 5 of 5
f.ribbeck
in reply to: f.ribbeck

Do I need to layer or mix the shaders together?

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