OverviewV-Ray for Unreal

V-Ray for Unreal

What's New

Example: Added Near Clip Plane functionality to VRayPhysicalCamera

Last updated 18 September 2025

Official Release

Date – January, 2022

Download Build 5.10.01

New Features

Unreal Engine

Support for Unreal Engine 4.27

Geometry

Initial support for Skeletal Meshes

Render element

Implemented Light Mix render element and LightMix Source in VFB

Modified Features

Performance

Optimized Interactive rendering performance and responsiveness

Fixes

Installer

Bug with auto detection the Unreal Engine's installation directory

Official Release

Date – August, 2021

New Features

V-Ray

Updated V-Ray core to version 5.10.03
Blue Noise Sampling
Initial out-of-core support (only V-Ray proxy geometry)
Improved Trace depth for reflection and refraction rays

New VFB

New implementation of VFB with integrated Layers compositing

Denoiser

Implemented Intel® Open Image Denoise

Geometry

Support for geometry pivot offset

Materials

Support for Coat layer in VRayMtl

Export .vrscene

Added export only selected nodes to .vrscene

Modified Features

V-Ray Bake

Implemented Custom preset that takes settings from V-Ray Settings tab

Installer

Updated Installer

License Server

Updated Online License Server in installer to 5.5.4

Chaos Cloud

Updated Chaos Cloud Client in installer to 1.13.0

Official Release

Date – March, 2021

New Features

Unreal Engine

Support for Unreal Engine 4.26

Modified Features

License Server

Updated Online License Server in installer to 5.5.3

Chaos Cloud

Updated Chaos Cloud Client in installer to 1.1.0

Official Release

Date – October, 2020

Modified Features

Installer

Improved installer initialization speed

.vrscene Import

Grouping of objects in World Outliner based on type and layers in host DCC

.vrscene Export

Improved exported .bat file when exporting light bake atlas .vrscenes

Bug Fixes

V-Ray Bake

Light map EXRs modified in Photoshop import as black
Process Atlases not extracting EXRs from a very long path
Failed to export EXRs to a non-latin name path

.vrscene Import

Crash on reimport of Light mesh in UE 4.25

.vrscene Export

Port number doesn't export correctly in generated .bat file

Official Release

Date – June, 2020

New Features

Chaos Cloud

Support for Chaos Cloud - Rendering and Light baking

Notification if the user is rendering in the viewport with disabled realtime option

Materials

Added SideColor option representing Fresnel in VRayMtl

MAX Script

V-Ray Material Optimizer MAX script for texture baking and material simplification

Modified Features

License Server

Updated Online License Server in installer to 5.5.0

Bug Fixes

Materials

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

Lights

LightMesh not exporting correctly when set to "Invisiblе"

Installer

Standalone Render Server installation fails to locate vray.exe

Official Release

Date – May, 2020

New Features

Unreal

Support for Unreal Engine 4.25

V-Ray Bake

Process Atlases - Extract light maps from single or multiple atlases saved in .exr files

Export Light bake .vrscenes from the V-Ray Scene Export Options

Lights

Support for V-Ray mesh lights

Support for Unreal Sky light

Render Elements

Support for Cryptomatte render element

Geometry

Initial support for Unreal Landscape Actor:
- Landscape specific material expressions:LanscapeLayerBlend, LandscapeLayerCoords, LandscapeLayerSwitch, LandscapeLayerWeight, LanscapeVisibilityMask are not yet supported.

Support for Static and Dynamic Shadow casting for Actors

Packaging

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

Geometry

Error when hidden Brush geometry

Official Release

Date – January, 2020

New Features

Unreal

Support for Unreal Engine 4.24

Geometry

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

Modified Features

V-Ray

Improved speed on render and .vrscene export initialization

.vrscene Export

Generates .bat file to be used in standalone rendering

VFB

Improved speed when opening VFB

Bug Fixes

V-Ray

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

Official Release

Date – December, 2019

New Features

Texture

Support for Color Corrections in Unreal texture asset editor
- Brightness
- Brightness Curve
- Vibrance
- Saturation
- RGBCurve
- Hue

Added shortcut from V-Ray drop-down menu to in Project settings

OptiX render mode (Experimental) in V-Ray Settings tab

Dedicated button and dialogue window to save .vrscene file

V-Bake

Support for generating low-quality (mobile) lightmaps when lightbaking

Modified Features

V-Ray

Improved speed when using Unreal materials in render and lightbake

Moved VRay CUDA GPU Device Selection to V-Ray category in Project Settings

.vrscene Import

Better .vrscene import progress reporting and monitoring

Bug Fixes

.vrscene Import

Crash when importing meshes without normal data

V-Ray

Bugs with Normal map input producing incorrect shading
"Affects World" property in Unreal lights not updating in IPR
Bug with Dome light texture rotation in interactive does not update properly
Crash when switching levels while rendering using VRayPhysicalCamera
Bug "Use Custom Start Frame" option in Sequencer not exporting properly
Exposure not exporting correctly in Sequencer animation when using "3d Max Compatible" in VRayPhysicalCamera
Exception in CORE when network error occurs and bitmaps fail to load
Directional light renders black with certain color values
V-Ray material thumbnail preview mesh might randomly disappear

Official Release

Date – November, 2019

New Features

Added V-Ray Icons in Modes panel to V-Ray Assets

Camera

Added Near Clip Plane functionality to VRayPhysicalCamera

Example: Added Near Clip Plane functionality to VRayPhysicalCamera

100

300

Modified Features

V-Ray

Support for Unreal expressions – SetMaterialAttributes, GetMaterialAttributes
Improved speed when using Unreal materials in render and lightbake

V-Ray Bake

Improved visual quality of shadows when lightbaking

BEFORE

CURRENT

Bug Fixes

V-Ray Bake

Fixed crash when rebaking actors and loading lightmaps

Official Release

Date – October , 2019

New Features

V-Ray

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
In-product update notifier

Lights

Support for Temperature parameter in native Unreal lights

Functionality to cancel vrscene import

Modified Features

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

V-Ray

Support for Unreal expressions – RotateAboutAxis

Installer

Updated Online License Server in installer to 5.2.3

V-Ray Bake

Improved speed processing and storing of rendered lightmap atlases

Bug Fixes

V-Ray

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

Materials

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

Official Release

Date – August 29, 2019

New Features

V-Ray

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

Geometry

Support for Cast Shadows option for Static Mesh Actors

Textures

Support for "Flip Green Channel" option in Normal textures

Modified Features

Import

Improved the import of GeomMeshFile with identical vrmeshes

Installer

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

Materials

Improved support for Unreal expressions - VertexColor, ObjectRadius, ObjectPositionWS

Bug Fixes

V-Ray

Static Meshes with zero area UVs cause an Exception in CORE error when light baking
Camera rotation bug when orbiting around mesh with ALT+Mouse
Resolution capped to 11585
Assertion crash with viewport rendering when using DX12
Preparing scene progress goes above 100%
Switching between level maps does not stop rendering or baking process
Two Sided option not exporting correctly with VRayMtl, VRayCarpaintUberMtl, VRayPBRMtl

Official Release

Date – July 18, 2019

Bug Fixes

V-Ray

V-Ray Light Bake memory leak
Issue with support of multiple GPUs
Issue with transparent native materials in Light bake

Official Release

Date – June 26, 2019

New Features

V-Ray

Export/import functionality of lightmaps

Lights

Rendering of DatasmithAreaLight

Camera

Quadratic and Cubic distortion types to VRayPhysicalCamera

Modified Features

V-Ray

Project path is new default directory for "Export VRScene Path" option

Lights

Point Light Source radius working in IPR

Materials

Improved support for Unreal expressions - TwoSidedSign, Time

Bug Fixes

V-Ray

Static meshes with identical names in different folders do not render correctly
Lights in Blueprints are exported at BP pivot point
"Use Local Host" option not working in Light bake
"Cannot send asset" error when in DR
Incorrect Lightmaps is applied when some level actors are hidden
CUDA Error 700 when "Export failed for the ... texture"
CUDA error 700 when baking TwoSidedFoliage material
"Error in last lightbake: File write error"

Release Notes for V-Ray Next for Unreal, update 1

Official Release

Date – May 28, 2019

New Features

V-Ray

Support for Unreal Engine 4.22
Toggle option for sky in VRaySunAndSky
Option to remove local host from DR
"Transfer Missing Assets" option in DR
Progress report logging when computing long task
Directional parameter in VRayLightRect
Light options to V-Ray Lights - Affect Diffuse, Affect Specular, Affect Reflections
Support for Specular Scale for Unreal lights

Modified Features

V-Ray

Viewport rendering with Translucent shading model
Speed and memory utilization when V-Ray Light Bake
Support for Unreal shading models - Subsurface, Two Sided Foliage
Support for Unreal expressions - Pixel Depth
UI layout in V-Ray Settings and V-Ray Light Bake Settings

Bug Fixes

V-Ray

Bug with lightmaps having offset
Performance slow down during UV tree preparation in V-Ray Light Bake
Crash in cooked games packaged in Shipping configuration
Issues with metallic or highly reflective materials to appear black after V-Ray Light Bake
Intensity mismatch between viewport and render when using Directional Light

Official Release

Date – March 13, 2019

New Features

V-Ray

Viewport rendering functionality
Support for Unreal tonemapper and post effects (in viewport rendering only)
Dedicated V-Ray Bake settings
Telemetry

Modified Features

V-Ray

Dome Tex Resolution parameter in VRayLightDome blueprint
Functionality for creating, deleting and hiding actors in the level while in IPR rendering
Support for "Tangent Space Normal" checkbox option in Material
Support for Unreal expressions: Arccosine, Arcsine, Arctangent, Arctangent2, Logarithm2, Tangent, World Position

Installer

Updated Online License Server in installer to 5.2.2

Bug Fixes

V-Ray

"Launch V-Ray Render Server (Unreal)".exe file path
Issue with Sky texture not updating in IPR
Issues when using Normal maps in Materials

Official Release

Date – February 01, 2019

New Features

V-Ray

Support for rendering Unreal materials with V-Ray Hybrid rendering on both CPU and GPU
Added the VRayMtl, VRayPBRMtl and VRayCarpaintMtl to the V-Ray Category in the Add New drop down menu in the Content Browser

Modified Features

V-Ray

Support for Unreal Shading Models: Clear Coat
Interactive update for native Unreal materials.
Support for Unreal expressions: Bump Offset, CameraPositionWS, ConstantBiasScale, ReflectionVectorWS, Screen Position, SphereMask, TransformVector, VertexNormalWS, ViewProperty
Error reporting for unsupported Unreal materials, expressions, blend modes and shading models

Installer

Updated Online License Server in installer to 5.2.1

Bug Fixes

V-Ray

Errors due to NVidia driver dependencies
Crashes if unsupported expressions, blend modes and shading models are used

Official Release

Date – December 05, 2018

Modified Features

V-Ray

Support for Unreal Engine 4.21
Interactive update for native Unreal materials.
Support for Unreal expressions - Ceil, Floor, FMod, Frac, If, Min, Round, Sign, Truncate expressions

Light Bake

Improved speed of light bake

Bug Fixes

V-Ray

V-Ray exporter in sequencer
- Export for custom start frame
- Export for sequencer camera cuts using multiple cameras
- Difference in color space in VFB and saved image
- VRay CUDA GPU Device Select not working with sequencer animation

Official Release

Date – November 15, 2018

Modified Features

V-Ray

Responsiveness of UI during interactive render

Light Bake

Improved speed of light bake

Installer

Updated Online License Server in installer to 5.1.2

Teleport Blueprint

Updated Teleport BP to get exposure from listed cameras

Bug Fixes

V-Ray

V-Ray not loading in Unreal if no supported devices are set in device select
- Fallback to using CPU device if no supported devices are set in device select
Render Server shortcut not pointing to correct file path

Light Bake

Light bake not using devices set in V-Ray CUDA GPU Device Select
CUDA error during light baking

Official Release

Date – November 08, 2018

New Features

V-Ray

Log V-Ray messages in Unreal's Message Log
Basic support for importing Displaced Static Meshes
Output a list of the Static Meshes in the atlas currently baked

Modified Features

V-Ray

Support for Unreal Materials - Masked, Translucent, Alpha Composite Blend Modes and Unlit Shading Model

Bug Fixes

Light Bake

Crash when light baking Static Meshes with overlapping UVs

Beta release

Date – October 30, 2018

New Features

Light Bake

Initial implementation of V-Ray Bake

Materials

Initial support for Unreal native materials

Geometry

Support for Foliage system

Render

Initial support for Sequencer animation

Modified Features

Installer

Request confirmation about version being uninstalled during installation process

UI

Reworked UI
Integrated GPU device select tool in V-Ray Settings
Global Shadow Bias parameter
Fallback material for use when rendering unsupported materials
Quick settings quality presets slider
Export VRScene path option
Auto Exposure and Auto White Balance options
Undersampling option

Camera

Support for Depth of Field in VRayPhysicalCamera

Materials

Improve parity for VRayMtl material
Support for SeflIllumination material
V-Ray Materials are now included in the packaging/cooking process

Lights

Updated VRaySunAndSky sky model
Support for Unreal Intensity Units in Lights
Support for 4.20 RectLight
Support for Light Source Angle in Directional Light
Support for default intensity unit at import for Spotlight, Omni, Sphere Light, Rectangle Light

Geometry

Improved support for VRay Proxy (vrmesh)

Render

Update responsiveness and speed of IPR
Support for interactive mesh material update
Support for interactive material parameters update
Stop renderer when noise threshold is reached in non-interactive session

Render Elements

Added :
- NVidia AI Denoiser
- Background, GI, Lighting, Reflection, Refraction, Specular, Self Illumination, Sub Surface Scattering
- Diffuse Filter, Reflection Filter, Refraction Filter, Shadows, Atmosphere
- RenderID
- Normals, Bump Normals, Sampler Info, Velocity, ZDepth
- Light Select
- Sample Rate, Unclamped Color, Noise Level

VFB

Dedicated button for opening the VFB
Always on top VFB

VR

V-Ray Teleport Blueprints separated in an additional plugin

Beta release

Date – April 05, 2018

New Features

vrscene Support

Automatic convert of materials and lights into real-time equivalents for UE workflows
Keeping original materials from the imported vrscene connected to their real-time versions and are using them for raytraced rendering

Camera

Support for the VRayPhysicalCamera
Support for the 3ds Max’s Physical Camera
Initial implementation of exposure and color mapping

Materials

Support for VRayMtl material (including partial VRay2SidedMtl)
Initial implementation of a PBR material
Initial implementation of an easy to use car paint material
V-Ray materials are supported natively in UE and are working with Lightmass baking, Lights, Reflection probes, Post process materials, Blueprints

Lights

Support for VRayLightDome, VRayLightRectangle, VRayLightSphere, VRayLightIES, UE Spot light, UE Point light, UE Direct light
Initial implementation of the V-Ray Sun&Sky system

Render

Initial implementation of interactive rendering
V-Ray Hybrid rendering on both GPU and CPU
Using the V-Ray Next GPU engine

Distributed Rendering

Support for DR

Render Elements

Support for the V-Ray Denoiser

Textures

Support for VRayTriplanarTex

VFB

Support for the VFB
Render History window implemented

VR Mode

Support for the VR mode in the Unreal Editor