Using Open VDB assets with 3Delight for Houdini requires a geometry node with 3Delight vdbVolume shader assigned to node's material's attribute and inside this geometry node we should place a File node with the corresponding VDB file name that we want on it's Geometry File attribute. (Reference video by Lewis Taylor)
Specifying an Open VDB file
Use the browse button to select a VDB file on the File node.
Once a VDB file has been set, you will have to select and type the proper Smoke, Temperature, Emission Intensity and Velocity grids. The Velocity Scale attribute will be used as a multiplier over the Velocity grid values
Shading the Open VDB Volume
Shading an Open VDB volume is done by using the vdbVolume shader node.
Density
Color
Anisotropy
Multiple Scattering
Density Ramp
Transparency Color
Transparency Scale
Emission Scale
Black Body Mode
Emission Color Ramp
