This page provides general information and links about the V-Ray Volumetric Grid.
A Volumetric Grid is a special kind of volumetric effect that works with grid-based cache formats. Compare with Environment Fog, which is a general purpose volumetric shader. The Volumetric Grid reads its data from an input file which supports grid-based representation of the volume. In addition to volumetric rendering, VRayVolumeGrid also supports isosurface rendering and meshing.
Creation of a VRayVolumeGrid does not create a visible grid or object in the scene. The VRayVolumeGrid node can be accessed through the Outliner to display its parameters in the Attribute Editor.
Currently, VRayVolumeGrid supports three volume formats:
||V-Ray Shelf|| > Create VRay Volume Grid
Create > V-Ray > Create VRayVolumeGrid
The creation and use of the V-Ray Volumetric Grid are covered in more detail in these pages: