This page provides information on the Live Link feature from Revit in Chaos Vantage.


The Live Link feature makes it possible to instantly see changes made in Revit without the need to export and import .vrscenes in Chaos Vantage.

Live Link Setup

For Live Link to function properly, please follow the steps below:


Live Link works only with V-Ray 5 for Revit, update 2 or later versions.

Connect to Chaos Vantage

 After installation, Live Link can be initiated by using the Connect to Chaos Vantage in Revit. It can be accessed from ||V-Ray for Revit Ribbon|| > Render panel >Connect to Chaos Vantage from the drop-down menu.

This initializes a live link session between Revit and Chaos Vantage. It automatically:

    • Starts Chaos Vantage if it is not already running;
    • Sends the scene to Chaos Vantage on 20701 port;

Once a Live Link session is started, the scene is transferred to Chaos Vantage and a thick blue contour line appears around the viewport and the status message in the lower right changes to [LIVE LINK].

The Pause when app loses focus option in the Preferences menu is ignored when in Live Link session.

To stop a Live Link session, click the Disconnect Chaos Vantage button or open the VFB and stop the IPR.


Supported Features

The following changes made in Revit are propagated through Live Link:

  • Editing, creating and deleting of:
    • Camera
    • Geometries
    • Lights
    • Materials
    • Textures
    • Environment

Known Limitations

The following actions can be done Inside Chaos Vantage during Live Link :

  • create cameras;
  • create camera animation in the animation editor;
  • edit environment and fog
  • add post effect (LUT, Bloom, Highlight burn)
  • Render:
    • snapshots;
    • HQ still image
    • HQ sequence
  • save .vantage file with the changes from above.



The following actions cannot be done inside Chaos Vantage during Live Link:

  • transform objects;
  • hide/unhide objects;
  • reassign materials;
  • edit lights;
  • import external(including cosmos assets) files;
  • animation playback



The following requires a restart of the Live Link Session in order to be updated properly.

  • Updating of:
    • animated V-Ray Proxy files (.vrmesh)

When the Live Link Session is closed, the scene is still loaded inside Vantage but it is considered dirty and the aforementioned limitations are still in effect. A .vrscene file from the host application needs to be exported and loaded inside Chaos Vantage to enable full manipulation, editing and playback.

If a .vantage file is saved in an active Live Link session, it can be loaded in a next session or applied to a loaded .vrscene.