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Killplane for BFG?

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Message 1 of 4
ken.gearyYBNS7
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Killplane for BFG?

I'm experimenting with using the BFG flame sample and attaching to an animated torch.  i want to render in Redshift, so I added a Write VDB node (and time node /etc.) .  As I play out the sequence to write out the VDB's I noticed the sim takes longer and longer per frame and the VDB file sizes grow very large , multi-GB in later frames.  I'm guessing its from the smoke rising upwards and adding to the overall volume size.  Is there a way (like old Bifrost liquid) to add a killplane or killvolume to keep the sim times reasonable and VDB file sizes down? 

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Message 2 of 4

Use the simulation bounds input on the aero_solver_settings node, you can pipe in a mesh which determines the bounds of the sim. See screenshot and video.

simulation_bounds.png

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MacBook Pro 13,3 - 2.7GHz - 16GB - Radeon Pro 460 - macOS Catalina 10.15
Message 3 of 4

PERFECT!

thanks so much

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To help others find useful information, you can mark the answer as accepted solution.

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MacBook Pro 13,3 - 2.7GHz - 16GB - Radeon Pro 460 - macOS Catalina 10.15

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