merlinND
commented
2 years ago Hello @vucenovic,
The smoke plume reference data comes from OpenVDB's sample volumes: https://www.openvdb.org/download/ It was then converted to Mitsuba's simple binary format using @dvicini's converter: https://github.com/mitsuba-renderer/mitsuba2-vdb-converter
If you are trying to supply 3D spectral data and rendering it in a volume, I believe you will need to extend the Grid3d plugin to support it. Currently, it can handle either 1 or 3 channels:
You will probably need to achieve something like the regular or irregular spectrum plugins, depending on your spectral data.
Hello,
In your paper you showed a volume optimization using smoke. I was wondering if there is any code available showing how you setup the scene, especially the .vol file's data to correspond to the material of smoke. I am trying to recreate a similar setup, and have spectral data of my material available, which can be loaded into my scene with the tag like this:
<spectrum name="sigma_t" filename="$matobj"/>, where $matobj is my filename. I would like to port this data to my volume grid.