This page provides information about the Chaos Cosmos Browser integration in V-Ray for Blender.
Overview
Chaos Cosmos Content System delivers an asset library of high-quality, render-ready 3D content carefully selected from the rich Chaos ecosystem. It allows Chaos users from their respective Chaos products to browse, place, and render 3D assets in their visualization projects. The asset categories span across vegetation, materials, furniture, accessories, lighting fixtures, vehicles, people, animals, architecture, presets (i.e. ready-to-use predefined sets of 3D models like grass and dandelion lawns, tree avenues, river bed, wild bushes, palm forest, hedges, group of people and more), enmesh-patterns and HDRI skies, organized in four main categories and nine spaces.
In addition, all assets go through a rigorous process of selection and Chaos quality checks to make sure that they work seamlessly in different Chaos renderers (V-Ray 5 and later, V-Ray GPU, Corona, Vision, as well as Chaos Vantage) and host apps (3ds Max, Cinema 4D, Revit, Rhino, SketchUp, Maya, Houdini, etc).
Find out more about Chaos Cosmos by following the link.
Installation
Chaos Cosmos Browser is part of the installations of all Chaos renderers - V-Ray, Corona, and Vantage - and does not require any other specific actions. You can access the downloadable content of the Chaos Cosmos Platform from within the host platform once the renderer's installation is complete.
Usage
To start using the Chaos Cosmos Browser, you have to first sign in. Press the Sign in button at the top-right corner and enter your Chaos credentials in the opened browser tab.
TIP: If your Cosmos Browser needs an update, a message appears in the Cosmos window inside Blender. You don't need to look for updates manually.
Then, you can use the buttons at the top or use the Search tab to find assets.
You can additionally choose between different Categories. The option to Show downloaded only is also available.
The filters help you refine your search by date, popularity, color, and space.
Download
When you choose an asset, you have to download it first. Hover over it and click on the blue icon at the lower-right corner. Another way to download an asset is to click on it. This reveals additional information. You can see the category/space/color of the asset and other relevant additional information.
Import
Once the download is complete, a window pops up stating that the asset is downloaded successfully. The Import button places the asset at 0,0,0 of the coordinates system.
Only the Import button places the asset into the scene, dragging and dropping is not supported yet.
Note that assets can be reused across different host platforms. They are saved locally in the following directory: C:\Users\[User]\Documents\Chaos Cosmos\Packages.
The download storage can be configured. For more information on how to do it, refer to the Configuring the Asset Download Directory page.
Lights
Cosmos lights are imported as a hierarchy - the V-Ray Proxy, which holds the geometry of the Cosmos asset, is a parent to the respective V-Ray Light. This means that moving or rotating the geometry, keeps its V-Ray Light together with it.
Cosmos assets with light sources are listed in the Light Mix render channel.
HDRIs
HDRI assets create a Dome Light with a Bitmap texture attached to it. Dome Lights overexpose a scene if not viewed from a V-Ray Camera. When importing an HDRI from the Cosmos Browser, it is recommended to use a V-Ray Camera to achieve the correct exposure.
Materials
The 
Import button adds the material into the scene and is available for selection in the Material Manager. Press the green arrow 
for additional import options:
Use triplanar mapping – Enables triplanar mapping (when adding the material to scene or selection).
When an option is enabled in this menu, a blue circle (
) indicates the custom setup is in effect for any further material imports.
Notes
- Scenes with Chaos Cosmos assets can be rendered in Chaos Cloud.
- Scenes with Chaos Cosmos assets can be exported as .vrscene files.
- Chaos Cosmos assets that contain light sources can be used with Light Mix.
- At render time, Chaos Cosmos objects work as V-Ray proxies. For more information, refer to the Proxy page.
- Chaos Cosmos assets are always in centimeters.
- If a warning appears when opening the Cosmos browser, follow its message to reset it.