{
    "name": "rman_properties_volume",
    "params": [
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_filterwidth",
            "label": "Filter Width",
            "type": "float",
            "editable": true,
            "default": 0.0,
            "page": "",
            "help": ""
        },                   
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_velocityscale",
            "label": "Velocity Scale",
            "type": "float",
            "editable": true,
            "default": 1.0,
            "page": "",
            "help": ""
        }, 
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_densitymult",
            "label": "Density Multiplier",
            "type": "float",
            "editable": true,
            "default": 1.0,
            "page": "",
            "help": ""
        }, 
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_densityrolloff",
            "label": "Density Rollout",
            "type": "float",
            "editable": true,
            "default": 0.0,
            "page": "",
            "help": ""
        }
    ]
}        
{
    "name": "rman_properties_volume",
    "params": [
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_filterwidth",
            "label": "Filter Width",
            "type": "float",
            "editable": true,
            "default": 0.0,
            "page": "",
            "help": "If set to 0, disables mipmapping. If greater than 0, values less than 1 bias towards finer levels of the mipmap and values larger than one bias towards coarser levels."
        },                   
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_velocityscale",
            "label": "Velocity Scale",
            "type": "float",
            "editable": true,
            "default": 1.0,
            "page": "",
            "help": "Scales the values in the velocity field of the volume."
        }, 
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_densitymult",
            "label": "Density Multiplier",
            "type": "float",
            "editable": true,
            "default": 1.0,
            "page": "",
            "help": "Scales the values in the density grid of the volume. This should be more efficient than scaling the density in the shader."
        }, 
        {
            "panel": "VOLUME_PT_renderman_openvdb_attributes",
            "name": "openvdb_densityrolloff",
            "label": "Density Rollout",
            "type": "float",
            "editable": true,
            "default": 0.0,
            "page": "",
            "help": "Values greater than 0 produce a logarithmic falloff in density values. Smaller rolloff values produce greater falloff."
        }
    ]
}        
Add tooltips for the new JSON openvdb attrs.
Add tooltips for the new JSON openvdb
attrs.
