volume
This node represents a volumetric object defined by OpenVDB data. It has the following attributes:
| Name | Type | Default |
|---|---|---|
vdbfilename | string |
The path to an OpenVDB file with the volumetric data.
| Name | Type | Default |
|---|---|---|
densitygrid | string |
The name of the OpenVDB grid to use as volume density for the volume shader.
| Name | Type | Default |
|---|---|---|
colorgrid | string |
The name of the OpenVDB grid to use as a scattering color multiplier for the volume shader.
| Name | Type | Default |
|---|---|---|
emissiongrid | string |
The name of the OpenVDB grid to use directly as emission for the volume shader.
| Name | Type | Default |
|---|---|---|
emissionintensitygrid | string |
The name of the OpenVDB grid to use as emission intensity for the volume shader.
| Name | Type | Default |
|---|---|---|
temperaturegrid | string |
The name of the OpenVDB grid to use as temperature for the volume shader.
| Name | Type | Default |
|---|---|---|
velocitygrid | string |
The name of the OpenVDB grid to use as motion vectors. This can also name the first of three scalar grids (ie. “velocityX”).
| Name | Type | Default |
|---|---|---|
velocityreferencetime | double |
The reference time at which the grid data is used directly, without being moved by the velocity grid. Defaults to the global node’s referencetime attribute.
| Name | Type | Default |
|---|---|---|
velocityscale | double | 1 |
A scaling factor applied to the motion vectors.