Volumes

VDB Mipmap workflow

An OpenVDB volume with many grids (for example, density_level_0, density_level_1, density_level_2) can be controlled by mipmap_bias. Houdini provides a VDB LOD sop node that generates mipmaps from a given VDB. When imported into Solaris, the field name matches the grid name:

Arnold requires unique field names that match the corresponding grid names (density). Use an Edit Properties LOP to update the field names accordingly:

Example Solaris VDB Mipmap workflow: