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07-848 2005

V-Ray for Maya

VRayVolumeGrid

This page provides general information and links about the V-Ray Volumetric Grid.

Last updated 20 March 2026

This page provides general information and links about the V-Ray Volumetric Grid.

Overview

The V-Ray Volumetric Grid allows you to load, shade and render grid-based simulation cache files, as opposed to the Environment Fog, which is a general purpose volumetric shader and requires no files on disk.

In addition to volumetric rendering, the V-Ray Volume Grid also supports Isosurface rendering and meshing.

Currently, the following file formats are supported:

  • OpenVDB (.vdb) - Supported by Houdini® and RealFlow®
  • Field3D (.f3d) - Supported by FumeFX® and Maya® (using 3rd party plugins)
  • PhoenixFD (.aur) - Phoenix FD® native volume format

UI Paths

Extra Tips

The following pages contain extra information for using the V-Ray Volume Grid:

  • Volumetric Grid Tips is an information page containing distributed rendering and FumeFX render settings tips.
  • Starting with V-Ray Next, Update 1, you need to re-export Maya fluids to .vrscenes, if you want to use vrscene caches.
  • The Frame Info tab gives you information for the current frame.
  • The Grid rollout allows you to render a volume without any loaded cache from the Input rollout.
  • The Input rollout determines the path of the input files for rendering and preview as well as the playback effects.
  • The Preview page contains information about the representation of the cache files in the viewport.
  • Under the Rendering rollout and all its sub-rollouts, you can find all options for rendering a Fire / Smoke simulation.
  • Volumetric Rendering Tips page provides tips on rendering volumetric effects.