This page introduces the Volume Grid geometry object.
VRayVolumeGrid is a special kind of volumetric effect that works with grid-based cache formats, compared to Environment Fog which is a general purpose volumetric effect. The Volumetric Grid reads its data from an input file which supports grid-based representation of the volume.
Currently VRayVolumeGrid supports three volume formats:
- OpenVDB (.vdb ) - Supported by Houdini ® , FumeFX ® and RealFlow ®
- Field3D (. f3d ) - Supported FumeFX ® and Maya ® (using 3rd party plugins)
- PhoenixFD (. aur ) - Phoenix FD ® native volume format
Immediately after the VRayVolumeGrid is created, a dialog appears for selecting the input file. After selection of the input file, a number of options are available to fine-tune and customize the volume.
||Create menu|| > V-Ray > V-Ray VolumeGrid > Click in a viewport to create VRayVolumeGrid
||Create panel|| > Geometry > VRay category > VRayVolumeGrid > Click in a viewport to create VRayVolumeGrid
Volume Grid Options
The following options are provided for modifying the appearance and rendering of the volume grid.