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oliver ledoux avatar image
oliver ledoux asked ·

VDB issue, my cloud looks "cubic"!

Hello, I'm brand new using arnold and I have a quick question regarding volumes and VDB.
Basically I followed a tutorial and have issues rendering a smooth cloud. I followed all the steps but it doesn't seem to be working for me and the render appears with cubic edges. Any Idea what I'm missing. I'm in C4D.

Cheers, Oli.

volumetricsvdb
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oliver ledoux avatar image
oliver ledoux answered ·

I found the answer. Thanks Stephen and Lee.
The solution was different though. I found this in the comments below this tutorial.

Jason says

Arnold is showing you blocks because you need to tell it which channels to apply the shading to.

You need to apply a volume collector to the cloud. Inside the volume collector, set your Scattering Source to ‘Channel’ and then type ‘density’ to specify the channel. Set Attenuation Source to ‘Scattering’ and you should be good to go.

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Lee Griggs avatar image
Lee Griggs answered ·

Which tutorial? What is the channel set to in the Standard Volume shader.

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Stephen Blair avatar image
Stephen Blair answered ·

Step Scale on the Arnold Volume object?

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