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"C4DtoA, HtoA" smoke, density, vdb not view

8 REPLIES 8
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Message 1 of 9
tura3311
565 Views, 8 Replies

"C4DtoA, HtoA" smoke, density, vdb not view

Both cinema 4d and houdini Fx both smoke, vdb not work, does not appear. I wonder what is the reason ?

system features: intel core i3, 8gb ram, nividia gt 630 gpu

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8 REPLIES 8
Message 2 of 9
Stephen.Blair
in reply to: tura3311

Could be your VDB files, because there's lots of other users rendering volumes.

Check the Arnold log.



// Stephen Blair
// Arnold Renderer Support
Message 3 of 9
lee_griggs
in reply to: tura3311

Is it seeing the path to the volume? What if you move it somewhere else?

If it still doesn't work check the log file and upload the .vdb file somewhere so that we can test it.

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 4 of 9
tura3311
in reply to: Stephen.Blair

It is written on the console

The console at the houdini is empty

[c4dtoa] 00:00:00   749MB WARNING | /Arnold_Volume.grids: use type ARRAY, not POINTER
[c4dtoa] 00:00:00   749MB WARNING | /Arnold_Volume: could not set POINTER parameter "grids"
[c4dtoa] 00:00:00   765MB WARNING |  [volume] could not find non-empty "grids" user data, cannot create volume
[c4dtoa] 00:00:00   765MB WARNING |  /Arnold_Volume: shape has empty bounding box: (inf inf inf x -inf -inf -inf)


Message 5 of 9
tura3311
in reply to: lee_griggs

gives the same result in all vdb's. Moving to a new place is not the solution.

those on the console c4d

[c4dtoa] 00:00:00   749MB WARNING | /Arnold_Volume.grids: use type ARRAY, not POINTER
[c4dtoa] 00:00:00   749MB WARNING | /Arnold_Volume: could not set POINTER parameter "grids"
[c4dtoa] 00:00:00   765MB WARNING |  [volume] could not find non-empty "grids" user data, cannot create volume
[c4dtoa] 00:00:00   765MB WARNING |  /Arnold_Volume: shape has empty bounding box: (inf inf inf x -inf -inf -inf)

The console at the houdini is empty

Message 6 of 9
tura3311
in reply to: tura3311

gives the same result in all vdb's. Moving to a new place is not the solution.

those on the console c4d

  1. [c4dtoa] 00:00:00   749MB WARNING | /Arnold_Volume.grids: use type ARRAY, not POINTER
  2. [c4dtoa] 00:00:00   749MB WARNING | /Arnold_Volume: could not set POINTER parameter "grids"
  3. [c4dtoa] 00:00:00   765MB WARNING |  [volume] could not find non-empty "grids" user data, cannot create volume
  4. [c4dtoa] 00:00:00   765MB WARNING |  /Arnold_Volume: shape has empty bounding box: (inf inf inf x -inf -inf -inf)

The console at the houdini is empty


Message 7 of 9
lee_griggs
in reply to: tura3311

Where are the VDB files from? Maybe the grids are missing?

Do you get the same issue with these volumes?

https://www.openvdb.org/download/

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 8 of 9

You should see existing grids listed in the Available grids field. If it's empty, make sure the path to the file is correct. Note, that # characters mean the current frame.

Check this example, for instance, it has a density grid: https://artifacts.aswf.io/io/aswf/openvdb/models/bunny_cloud.vdb/1.0.0/bunny_cloud.vdb-1.0.0.zip

Message 9 of 9
schwungsau
in reply to: tura3311

your vdb is emty and your bounding box is infinity.

this happen when you writea houdini volume out as VDB. you need to convert the volume to vdb first.

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