This page provides details on the Asset Editor in V-Ray for Rhino.


The V-Ray Asset Editor is the place where you can create, save, open assets and adjust their settings. These include materials, textures, geometry and lights. You can also manage the Render Channels from the Asset Editor. From its Settings tab, you can choose the render engine, set up the camera, optimize the render process or render with Swarm. You can also start the render or submit a scene to Chaos Cloud, as well as open the VFB. 

.vismat files created with V-Ray 1.49 or earlier versions of V-Ray are no longer supported. You can read a .vismat file containing materials in V-Ray but you can no longer save an asset in a .vismat format. Assets can be saved in .vrmat files only.


UI Paths



 || V-Ray Toolbar || > Asset Editor button


V-Ray > Asset Editor





Assets are grouped in Categories for ease of access and use. On top of the central Asset Editor's panel you can find the Materials, Lights, Geometry, Render Elements and Textures categories.

You can create an asset in the respective category by Left- or Right-click if the category is empty. If there are already items in it Left-click will select the directory, while a Right-click always opens a list of available assets to choose from in order to create them. The Asset creation dropdown lists remain active when the Ctrl key is held, allowing the creation of multiple assets in quick succession.

Each Category has a Search Scene tab on the top of the list. You can search assets from the category selected. You can select more than one category or asset at a time with Ctrl+select or Shift+select.

The Assets tab search function only displays top-level hierarchy assets.

The Asset lists have some additional multi-selection functionalities:

  • Ctrl + Left-click on deselected item - Adds to the selection;
  • Ctrl + Left-click on selected item - removes it from the selection;
  • Ctrl + A - Selects all items in the list/category;
  • Shift + Left-click - expands the range of the current selection;
  • Left-Click + Drag - Drags only the clicked item entry;
  • Right-Click on deselected item - Shows the context menu for the item and does not change the current selection;
  • Right-Click on selected item - Shows the context menu for the item and doesn't change the selection. If multiple entries are selected the context menu will display only their common actions.





At the bottom of the Asset Editor you can find some utility buttons:

From the Create Asset button () you can open a list of all V-Ray assets grouped into categories and select an item to add it to the scene. Using the Import Asset button () you can open a directory and select to import a .vrmat file into your Library. Vice versa, an already created asset can be saved with the Save Asset to File button (). Delete the selected asset(s) with the Delete Asset button (). You can select more than one asset by using the Ctrl or Shift buttons. Purge all unused items of selected asset categories with the Purge Unused Assets button ().

In the right panel of the Asset Editor reside two navigation buttons:

Select Previous Asset () traces back assets that were previously selected, while Up the Assets Hierarchy () moves the selection one level up in the hierarchy.

Some keyboard shortcuts are available for navigation in the Asset Editor.

  • Ctrl + (1/2/3/4/5/6) - Switches to the corresponding category or the settings view;
  • Ctrl + 0 - Selects all categories;
  • Alt + (1/2/3/4/5) - Adds to the active categories;
  • Ctrl + A - selects all assets in the category of the current selection;
  • Shift + Left-click - expands the range of the current selection;
  • Delete - Deletes the selected asset/s;
  • Ctrl + Left Arrow - Selects the previous asset;
  • Ctrl + Up Arrow - Selects the parent of the active asset;
  • Ctrl + ( [ or ] ) - Toggles the left or right fly-off panels.




Preset Library Buttons

The Preset Material Library also has some functionality buttons at the bottom of the Asset Editor.

Import Asset File () button adds a directory in which your .vrmats reside. When you load the directory, the .vrmats files will load in the Preset Material Library as separate assets.

You can change the view between row and a column via the () button. The assets' display can be changed between a grid and a list view (). Use the zoom in/out buttons () to adjust the size of the preview swatches in the list.

For more information about all the functionalities that the Preset Material Library offers, follow the link.

Multi-selection of assets is possible in the Library, but you cannot drag-and-drop more than one asset at a time.



Preview Swatch

The Preview Swatch resides in the right panel of the Asset Editor, rendering all changes done to the currently selected asset. This is a quick preview of materials, textures and lights. It has several controls that can be customized for your workflow.

You can enable or disable the live preview of the swatch by pressing the corresponding button (/). As the Preview Swatch is an actual render, it might require some additional computing power. The Stop live preview button comes in handy in such situations. When you stop the live preview, you have the option to Preview the asset once (). The swatch will render the current settings of the asset, but will not take into consideration any changes done to it later.

When using the live preview swatch, there are other ways to reduce resource usage – choose the resolution of the rendered swatch from 100% (1/1) (which is the best quality, but is a slower render), 50%(1/2), 25%(1/4) and 12.5% (1/8) (which trades off image quality for refresh speed).

Selecting the scene used to preview the asset () is available for materials and textures. You can choose from Generic, Fabric, Floor, Ground, Subsurface Scattering, Wall and Wall Closeup.

Pulling the bottom line of the Preview Swatch up and down reduces or expands the swatch.

For Material assets, you can also choose among several swatch scenes. Some are more suitable than others at displaying certain material types. For example, a Brick material will be best seen in a wall preview, instead of a shader ball.

The pin () on the top left is used to preview a specific asset regardless of the currently selected one. It will display the pinned asset until unpinned.

When changing the Units of a given light, its preview will be updated accordingly. Changes of the light intensity value are displayed up to a certain amount in order to guarantee the preview remains illustrative.

Using the Stop Preview Swatch option releases the V-Ray Render node License, if there is no other rendering process taking place.


V-Ray Frame Buffer

The Frame Buffer button opens up the V-Ray Frame Buffer. For more information on V-Ray Frame Buffer, see the Frame Buffer page.


Render Button

The Render button allows you to choose how you wish to render, Render with V-Ray, Render with V-Ray Interactive, and Export V-Ray Scene File.


Renders the current view with the V-Ray production renderer.

Stops the current V-Ray production render.

Starts a V-Ray Interactive Render.

Stops the V-Ray Interactive Render.

Exports the scene to Chaos Cloud.

Exports a V-Ray Scene File (.vrscene)

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