v4.30.23 Chaos Group V-Ray for Unreal


Chaos Group V-Ray for Unreal


Download demos and trial versions, product documentation, free presets and more.

Chaos Group V-Ray

The fastest, simplest way to bring V-Ray scenes into real-time and render them.

V-Ray for Unreal introduces the fastest, simplest way for architects, product designers, and pre-vis specialists to bring V-Ray scenes into real-time and render ray-traced images directly from Unreal Editor, supporting both V-Ray scenes and native Unreal Engine scenes.

V-Ray for Unreal is a plug-in for Unreal Engine (UE) Editor that allows you to import your V-Ray scenes from 3ds Max, Maya, and SketchUp directly to Unreal Engine Editor for rendering. V-Ray for Unreal maintains data consistency. Your original materials from V-Ray for 3ds Max, Maya and SketchUp remain connected to their real-time versions and are called up when you’re ready to render. V-Ray for Unreal can also be used for light baking. In addition, it can be used for the rendering of native UE scenes or of 3rd party data that has been imported to Unreal Engine Editor with Epic’s own Datasmith.

What is V-Ray Next for Unreal used for?

  • Architectural visualization
  • Interior design
  • Automotive and product design
  • VFX previsualization and motion capture

Rent Additional Render Nodes Here:   Annual   Monthly

With V-Ray Next for Unreal, you get the best of both worlds — real-time & ray tracing

The fastest, simplest way for you to:

  1. Bring V-Ray scenes into real-time
  2. Render ray-traced images directly from Unreal

Now you can bring V-Ray scenes from 3ds Max, Maya, SketchUp and Rhino directly into the Unreal Editor. And for the first time, you can render ray traced, photorealistic images with V-Ray directly from Unreal.



Automatic migration of V-Ray scenes and assets from V-Ray for 3ds Max, Maya, and SketchUp to Unreal Engine Editor for existing V-Ray users within the archviz and automotive design communities.

Easy scene setup within UE Editor for existing V-Ray users within the archviz and automotive communities – leverages existing V-Ray knowledge for real-time and VR presentations.

Superior visual quality for non-V-Ray users and CAD community via Datasmith data transformation in combination with a state of the art, physically-based raytracing engine.

Note: Get V-Ray for Unreal as a rental license only (annual and monthly). V-Ray for Unreal supports only the Online Licensing System (OLS) and does not support the USB dongle.


To bring a V-Ray scene into Unreal is simple.

Create the scene the same way you normally do using V-Ray for 3ds Max, Maya and SketchUp. Then, export a V-Ray scene from your host application and import it using V-Ray for Unreal.

That’s it, you’re in — without needing to be a game engine expert.


When you import your scene, V-Ray for Unreal automatically converts your materials and lights into real-time equivalents for UE workflows.

At the same time, your original materials from V-Ray for 3ds Max, Maya and SketchUp remain connected to their real-time versions and are called up when you’re ready to render.

chaos group v-ray for unreal


When you render with V-Ray for Unreal, you get the exact same photorealistic quality that V-Ray is known for.

V-Ray taps into the full combined power of your GPUs and CPUs for ultrafast ray tracing.

chaos group v-ray for unreal


Once your V-Ray scene is imported, you’ll be ready to take full advantage of the VR capabilities in the Unreal Editor.

V-Ray for Unreal makes it fast and easy to create high quality, immersive VR.

chaos group v-ray for unreal


Now you can build great looking real-time experiences and ray traced renders all from a single, shared workflow using V-Ray for Unreal.


What’s New?

V-Ray for Unreal, update 3

More functionality for a lot less. Cloud rendering & baking. Automated data prep. Now compatible with Unreal 4.25.

Chaos Cloud in Unreal Engine

Enjoy fast, simple cloud rendering and light baking, directly from Unreal Engine. Chaos Cloud handles everything for you automatically — from licensing and uploading your scenes to distributing your job across virtual machines.

Automated data prep from 3ds Max

This new script makes it easier to convert 3ds Max data and prepare it for Unreal Engine. It automatically unwraps objects and optimizes materials, so they’re ready to be imported and used in Unreal Engine.

Support for the latest & greatest

V-Ray for Unreal now adds extra realism to Unreal’s latest features including Sun & Sky, Mesh light and Landscape. Explore and visualize the impact of natural light and shadows on your designs, render a variety of terrains and more.

Support for Adobe Substance

Add your favorite textures created with Substance and V-Ray and bring your designs to life. V-Ray now seamlessly works with Substance assets providing even more freedom for creativity.


Update 1


Viewport rendering

Render interactively while you design. Fine-tune lights and materials and instantly view results directly in the Unreal viewport. In addition, you could see Unreal post-process operations like the filmic tone-mapping in the final V-Ray result.

Support for Native materials

Render and bake any scenes created with V-Ray and/or Unreal native materials. No matter whether you use Datasmith or V-Ray to import your content assets to Unreal you can enjoy the fully ray-traced quality of V-Ray in Unreal.

Memory and speed optimizations

This update features efficient memory handling allowing you to work with large data sets, and heavy scenes comprised of millions of polygons. Take advantage of a much faster light baking, without compromising on V-Ray’s superior quality.



chaosgroup v-ray for unrealPhysical Materials & Translation

Automatically converts V-Ray materials to approximate Unreal materials. Original V-Ray materials are used when rendering.

chaos group v-ray for unrealV-Ray Light Baking

Bake your ray-traced lighting with V-Ray for the highest quality real-time illumination.

Supports static objects.

chaosgroup v-ray for unrealAccurate Lighting

Render your Unreal scenes with physically accurate, ray-traced lighting from V-Ray.



chaosgroup v-ray for unrealGlobal illumination

Render realistic bounced light using V-Ray’s Brute force and proprietary Light cache global illumination.

chaosgroup v-ray for unrealGPU+CPU Rendering

Render on all your hardware — with support for CPUs, NVIDIA GPUs, or a combination of both.

chaosgroup v-ray for unrealRendering Animation

Render sequences from the Unreal Sequence Editor to create V-Ray-quality, ray-traced animated cinematics.

To render deforming objects, use animated V-Ray Proxy objects.

chaosgroup v-ray for unrealDistributed Rendering

Leverage the power of multiple machines working together to speed up rendering and light baking.

chaosgroup v-ray for unrealRender Elements

Supports a wide range of render elements for better control in compositing.

chaosgroup v-ray for unrealV-Ray Proxy Support

Load high-resolution assets at render time using memory-efficient V-Ray Proxy objects.

chaosgroup v-ray for unrealUnreal Foliage Support

Compatible with Unreal’s native foliage system for rendering large environments and landscapes.

Currently supports static foliage.

Please make sure that your system fulfills these requirements before installing V-Ray. Note that V-Ray is only supported for 64-bit operating systems.

Minimum System Requirements

  • Processor – Intel® or AMD® 64-bit processor with SSE 4.2 support
  • RAM – 8 GB RAM and 8 GB swap minimum
  • GPU – NVIDIA® GeForce® 780 GTX series card or higher with compute capability over 3.0 1
  • Unreal Engine Editor version – 4.19.2; 4.20.2, 4.25
  • Supported Operating Systems  – Windows® 7 SP1 64-bit, Windows® 8 & 8.1 x64, Windows® 10
  • NVIDIA Display driver –  398.82 or higher

V-Ray Next for Unreal, update 3 (build 4.30.23)

New Features

  • Chaos Cloud – Support for Chaos Cloud – Rendering and Light baking (info)
  • UX – Notification if the user is rendering in the viewport with disabled realtime option
  • Materials – Added SideColor option representing Fresnel in VRayMtl (info)
  • MAX Script – V-Ray Material Optimizer MAX script for texture baking and material simplification (info)

Modified Features

  • License Server – Updated Online License Server in installer to 5.5.0

Bug Fixes


  • Serialization mismatch crash in certain situations with AlphaComposite blend mode in VRayMtl
  • Refraction input clamping colors above 1.0


  • LightMesh not exporting correctly when set to “Invisiblе”


  • Standalone Render Slave installation fails to locate vray.exe

V-Ray Next for Unreal, update 2.7

Date: May 2020
Download Build 4.30.22

New Features


  • Support for Unreal Engine 4.25

V-Ray Bake

  • Process Atlases – Extract light maps from single or multiple atlases saved in .exr files (info)
  • Export Light bake .vrscenes from the V-Ray Scene Export Options (info)


  • Support for V-Ray mesh lights (info)
  • Support for Unreal Sky light (info)

Render Elements

  • Support for Cryptomatte render element (info)


  • Initial support for Unreal Landscape Actor (info):
    • Landscape specific material expressions:LanscapeLayerBlend, LandscapeLayerCoords, LandscapeLayerSwitch, LandscapeLayerWeight, LanscapeVisibilityMask are not yet supported.
  • Support for Static and Dynamic Shadow casting for Actors


  • V-Ray materials can now be packaged for mobile platforms

Modified Features

.vrscene Import

  • Imported static meshes have assigned materials

Bug Fixes

V-Ray Bake

  • Crash when aborting light bake


  • Error when hidden Brush geometry

V-Ray Next for Unreal, update 2.6

Official Release – Date – January 2020

Download – Build 4.30.21

New Features


  • Support for Unreal Engine 4.24


  • Support for Unreal Brushes geometry


  • Track Active Render View option to get the current render view aspect ratio being it either camera filmback settings or viewport in V-Ray Settings (info)

Modified Features


Improved speed on render and .vrscene export initialization

.vrscene Export

Generates .bat file to be used in standalone rendering (info)


Improved speed when opening VFB

Bug Fixes


  • VFB history and adjustments settings resets when closing
  • Unreal material with Unlit shading model not generating GI
  • Export failed for Cube Texture with Default compression settings
  • Rendering expressions in different Normal spaces
  • Crash when rendering substance materials

V-Ray Next for Unreal, update 2.3

Official Release
Date – October, 2019
Download – Build 4.30.00

New Features


  • Support for Unreal Engine 4.23 (Recommended use after 4.23.1)
  • Support for import automation of vrscene via python script
  • Automatic saving of rendered still images in Unreal viewport when in non interactive mode  (info)
  • In-product update notifier (info)


  • Support for Temperature parameter in native Unreal lights


  •  Functionality to cancel vrscene import (info)

Modified Features


  • Modified UI of V-Ray Scene Import Options dialog (info)
  •  Animated render states for V-Ray Bake icon (info)


  • Support for Unreal expressions – RotateAboutAxis (info)


  • Updated Online License Server in installer to 5.2.3

V-Ray Bake

  • Improved speed processing and storing of rendered lightmap atlases (info)


Bug Fixes


  • Missing VRay CUDA GPU Device Select from UI
  • Actors with same ID Names not exporting correctly
  • Incorrect render elements settings when rendering sequencer animation
  • Crash when closing Unreal while rendering
  • Crash when Render Element Light Select has listed lights that are hidden in the level
  • V-Ray Settings are empty when Project Startup Map is set to None


  • Missing Shader Balls preview in Content Browser for V-Ray Materials

V-Ray Next for Unreal, update 2.2

Date – August 29, 2019
Download – Build 4.20.00

New Features


  • Moved to CORE version 4.20
  • Added Render resolution and Lightmap Atlas resolution presets
  • Added Lightmap baking progress bar


  • Added support for Cast Shadows option for Static Mesh Actors


  • Added support for “Flip Green Channel” option in Normal textures

Modified Features

  • Import
    Improved the import of GeomMeshFile with identical vrmeshes


  • Removed the check for running Epic Games launcher when installing the plugin


  • Improved support for Unreal expressions – VertexColor, ObjectRadius, ObjectPositionWS

Bug Fixes


  • Fixed Static Meshes with zero area UVs cause an Exception in CORE error when light baking
  • Fixed camera rotation bug when orbiting around mesh with ALT+Mouse
  • Fixed resolution capped to 11585
  • Fixed assertion crash with viewport rendering when using DX12
  • Fixed Preparing scene progress goes above 100%
  • Fixed switching of levels doesn’t stop rendering or baking process
  • Fixed Two Sided option not exporting correctly with VRayMtl, VRayCarpaintUberMtl, VRayPBRMtl

V-Ray Next for Unreal, update 1

Date – May 28, 2019
Download – Build 4.12.00

New Features

  • Added support for Unreal Engine 4.22
  • Added toggle option for sky in VRaySunAndSky
  • Added option to remove local host from DR
  • Added “Transfer Missing Assets” option in DR
  • Added progress report logging when computing long task
  • Added Directional parameter in VRayLightRect
  • Added Light options to V-Ray Lights – Affect Diffuse, Affect Specular, Affect Reflections
  • Added support for Specular Scale for Unreal lights

Modified Features

  • Improved viewport rendering with Translucent shading model
  • Improved speed and memory utilization when V-Ray Light Bake
  • Improved support for Unreal shading models – Subsurface, Two-Sided Foliage
  • Improved support for Unreal expressions – Pixel Depth
  • Improved UI layout in V-Ray Settings and V-Ray Light Bake Settings

Bug Fixes

  • Fixed bug with lightmaps having offset
  • Fixed performance slow down during UV tree preparation in V-Ray Light Bake
  • Fixed crash in cooked games packaged in Shipping configuration
  • Fixed issues with metallic or highly reflective materials to appear black after V-Ray Light Bake
  • Fixed intensity mismatch between viewport and render when using Directional Light

V-Ray Next for Unreal

Date – March 13, 2019
Download  Build 4.10.20

New Features

  • Added viewport rendering functionality
  • Added support for Unreal tonemapper and post effects (in viewport rendering only)
  • Added dedicated V-Ray Bake settings
  • Added telemetry

Modified Features


  • Added Dome Tex Resolution parameter in VRayLightDome blueprint
  • Added functionality for creating, deleting and hiding actors in the level while in IPR rendering
  • Added support for “Tangent Space Normal” checkbox option in Material
  • Improved support for Unreal expressions: Arccosine, Arcsine, Arctangent, Arctangent2, Logarithm2, Tangent, World Position


  • Updated Online License Server in the installer to 5.2.2

Bug Fixes

  • Fixed “Launch V-Ray Render Server (Unreal)”.exe file path
  • Fixed issue with Sky texture not updating in IPR
  • Fixed issues when using Normal maps in Materials


Introduction to V-Ray Next Compilation

This is a compilation of the Introductory tutorials for V-Ray Next including 3ds Max, Revit, Sketchup, Rhino, Unreal, Modo and Houdini.  Most of these tutorials also have downloadable assets.


Understanding Metalness in PBR workflow with V-Ray Next

Chaos Group has added a Metalness parameter to the V-Ray standard material in an effort to better support a PBR workflow in V-Ray Next.