VDB Reshape SDF Error

Forums Technical Discussion VDB Reshape SDF Error

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Tooloohoohoo: Member; 9 posts; Joined: March 2017; Offline

March 25, 2019 3:29 p.m.

Hey, I've been trying to use the VDB Reshape SDF node, but it's not working, and kicking up this error for me:

“VDB primitive density was skipped because it is not a level-set grid.”

Can anyone tell me what that means, and how to solve it? Thanks!


Stocks: Member; 6 posts; Joined: Sept. 2016; Offline

Jan. 6, 2022 3:57 a.m.

Hey there,
I have this same problem, Did you manage to find a solution?


nikokoneko: Member; 2 posts; Joined: Feb. 2021; Offline

June 20, 2023 7:09 a.m.

I am having the same problem, driving me crazy, did you manage to find the solution?


tamte: Member; 8772 posts; Joined: July 2007; Offline

June 20, 2023 11:09 a.m.

VDB Reshape SDF SOP works only on SDF (signed distance field) aka Levelset volumes

that warning just means that you are trying to run it on density/fog volume or that at least some of the volume primitives in your geometry are density/fog volume

Tomas Slancik
FX Supervisor
Method Studios, NY


Houdini Obsession: Member; 58 posts; Joined: Nov. 2014; Offline

Nov. 16, 2023 2:07 p.m.

work around is to convert to vdb,class fog to vdb then do the operation then convert class back to vdb to fog.

Houdini Fx Artist (Build)

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