Scene provided by Evermotion

Table of Contents

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


The Live Link feature makes it possible to instantly see changes made in SketchUp 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 SketchUp, update 2 or later versions.

After installation, Live Link can be initiated in one of the following 2 ways:

Start Chaos Vantage

 Use the Start Chaos Vantage in SketchUp. It can be accesses either from:


    • the Start Chaos Vantage button in the Chaos Vantage toolbar which is hidden by default but can be enabled from View > Toolbars > Chaos Vantage
    • the Start Chaos Vantage command accessible from Extensions > V-Ray > V-Ray Live Link

Using either of the two initializes a live link session between SketchUp and Chaos Vantage. It automatically:

    • Starts Chaos Vantage if it is not already running;
    • Sends the scene to Chaos Vantage on 20701 port ;
    • When clicked again, closes the Live Link connection.

Start a Custom Live Link session in SketchUp.

In Sketchup:

1. Open the Customize Live Link dialogue by going to Extensions > V-Ray > V-Ray Live Link > Customize Live Link:

1.1 Specify the following :

  • Address – add your local machine as as server. Enter either localhost or
  • Port – specify a port range for which Chaos Vantage awaits incoming data. By default it is 20701

1.2 Close the Customize Live Link dialogue by clicking the OK button.

In Chaos Vantage:

1. Open Chaos Vantage.

2. Open the Live Link menu and make sure Start Server is enabled (greyed out). If Start Server on Application Start is enabled, every time Chaos Vantage is launched in stand-by mode and waits for incoming data. 


3. Setup port range in Change Port.. menu and make sure the range entered here matches the one previously set SketchUp. Default is 20701.


Back In Sketchup:

Start Live link by going to Extensions > V-Ray > V-Ray Live Link > Start Custom Live Link.

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, either click again the Start Chaos Vantage button, Start Custom Live Link option, or open the VFB and stop the Interactive rendering.


Supported Features

The following changes made in SketchUp 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.