Question about the “vdb” example

[Keswick Chow]

Hi, I use Blender 4.3.2.  When I opened both the Lesson01 and this Lesson10 files. In “3D Viewport”, the embergen_gas did not display anything (blank screen). I set the viewport shading to “render preview” and Render Properties to – Cycle, Supported, GPU Compute. I checked that the vdb file is not missing used “File-ExternalData-ReportMissingFiles”. There must be something that I have overlooked. Please help.

[Martin Bergwerf]

Hi @kchow ,

First, Render Preview always uses EEVEE.

You can go to Rendered Shading and see it with Cycles, or change the Render Engine to EEVEE and go to the Render Properties > Volumes Tab and change the Custom Range, or disable that altogether:

[Martin Bergwerf]

Also, make sure that you don’t get a warning like this:

[Omar Domenech]

Isn’t that the same issue in this thread:

https://cgcookie.com/community/19928-explosions-not-visible

[Keswick Chow]

Thank you very much Martin and Omar,

This is it!  I got the visual.  I have not used vdb before and did not realize there is a “Data” properties and that the vdb file have to be linked correctly there.  And the “File – ExternalData- Report Missing Files” did not show any problem!

[Author]

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