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This page provides information about export .vrscene file with V-Ray for Unreal.

Overview

VRayScene allows for assets to be shared between all platforms that run V-Ray.

Exporting a .vrscene

A vrscene from the an Unreal project can be exported with in two ways:

V-Ray toolbar

ІІV-Ray toolbar drop-downІІ > Export vrscene

V-Ray for Unreal > Exporting a VRayScene > V-Ray_Settings_ExportVRScene.png

VRScene Name – Enables the export of a .vrscene file when the V-Ray render button is clicked.

Export VRScene Path – Directory where the .vrscene file is saved. Default directory is <ProjectPath>\Content

Compress – Compresses geometric information thus making the resulting .vrscene file smaller.

V-Ray for Unreal > Exporting a VRayScene > VRSCENE_Export.png

V-Ray Bake Settings

Export VRScene – Enables the export of a .vrscene file when the V-Ray Bake button is clicked.

Export VRScene Path – Directory where the .vrscene file is saved with the file name bake#.vrscene. Default directory is <Project_Path>

V-Ray for Unreal > Exporting a VRayScene > VRayBake_Settings_ExportVRScene.png

Supported Features

Rendering and Light Baking

Cameras

Unreal

Camera Actor - Transformations
Cine Camera Actor - Transformations

Geometry

Static Meshes
Blueprint Actors with Static Meshes
Foliage

Lights

Point Light - Intensity; Light Color; Intensity Units - Unitless, Candelas, Lumens; Source Radius; Temperature; Affects World; Cast Shadows; Use Inverse Squared Falloff; Specular Scale
Spot Light - Intensity; Light Color; Intensity Units - Unitless, Candelas, Lumens; Inner Cone Angle; Outer Cone Angle; Source Radius; Temperature; Affects World; Cast Shadows; Use Inverse Squared Falloff; Specular Scale; IES Texture
Rect Light - Intensity; Light Color; Intensity Units - Unitless, Candelas, Lumens; Source Width; Source Height; Temperature; Affects World; Cast Shadows
Directional Light - Intensity; Light Color; Temperature; Affects World; Cast Shadows; Light Source Angle

Materials

Supported expressions:

Constant
- Constant
- Constant2Vector
- Constant3Vector
- Constant4vector
- Time
- TwoSidedSign
- VertexColor
- ViewProperty
Coordinates
- ObjectRadius
- Panner
- Rotator
- ScreenPosition
- TextureCoordinate
- WorldPosition
Depth
- PixelDepth
Functions
- FunctionInput
- FunctionOutput
- MaterialFunctionCall
- StaticBool
- StaticSwitch
Material Attributes
- BreakMaterialAttribute
- GetMaterialAttributes
- MakeMaterialAttribute
- SetMaterialAttributes
Math
- Abs
- Add
- AppendVector
- Arccosine
- ArccosineFast
- Arcsine
- ArcsineFast
- Arctangent
- Arctangent2
- Arctangent2fast
- ArctangentFast
- Ceil
- Clamp
- ComponentMask
- Cosine
- CrossProduct
- Divide
- DotProduct
- Floor
- Fmod
- Frac
- If
- LinearInterpolate
- Logarithm2
- Max
- Min
- Multiply
- Normalize
- OneMinus
- Power
- Round
- Saturate
- Sign
- Sine
- SquareRoot
- Subtract
- Tangent
- Truncate
Parameters
- ScalarParameter
- StaticBoolParameter
- StaticSwitchParameter
- VectorParameter
- TextureObjectParameter
- TextureSample2DParameter
Texture
- TextureObject
- TextureSample
Utilities
- BumpOffset
- ConstantBiasScale
- DDX
- DDY
- Desaturate
- Distance
- Fresnel
- RotateAboutAxis
- SphereMask
VectorOps
- CameraPositionWS
- CameraVectorWS
- ObjectPositionWS
- PixelNormalWS
- ReflectionVectorWS
- Transform
- TransformPosition
- VertexNormalWS

Supported Inputs:

Base Color
Metallic
Specular
Roughness
Emissive Color
Opacity
Opacity Mask
Normal
Subsurface Color
Clear Coat
Clear Coat Roughness
Clear Coat Bottom Normal

Supported Blend Modes:

Opaque
Masked
Translucent
Alpha Composite

Supported Shading Modes:

Unlit
Default Lit
Subsurface
Clear Coat
Two Sided Foliage

Supported Material Options

Tangent Space Normal

Textures

Texture with Compression Settings:

Default
Normalmap
NEW - Masks
Grayscal
NEW - Displacementmap
HDR
NEW - Alpha
NEW - HDRCompressed

Texture Settings:

Flip Green Channel

NEW - Adjustment Settings:

NEW - Brightness
NEW - Brightness Curve
NEW - Vibrance
NEW - Saturation
NEW - RGBCurve
NEW - Hue

Textures with file format:

.bmp
.png
.tga
.jpg
.hdr

Other

Sequencer animation with Static Meshes
Project packaging/cooking into a standalone application
Unreal tone mapper and Post Processes in viewport rendering

Rendering and Light Baking

Cameras

VRayPhysicalCamera BP
- Current Camera Settings - Sensor Width, Sensor Height; Focus Method; Manual Focus Distance; Current Focal Length
- V-Ray Physical Camera Settings - Enable Exposure; 3ds max Compatible; Film Speed(ISO); Shutter Speed S^-1; F-number; White Balance, Reinhard Burn Value; Distortion Type; Amount; Near Clip Plane

Lights

VRaySunAndSky BP - On, Azimuth, Elevation, Turbidity, Ozone, Intensity Multiplier, Size Multiplier, Set for Light Bake, Affect Diffuse, Affect Specular
VRayLightDome BP - On, Use Dome Tex, Dome Tex, Dome Tex Rotation, Dome Color, Intensity, Invisible, Set for Light Bake, Dome Tex Resolution, Affect Diffuse, Affect Specular, Affect Reflections
VRayLightRect BP - Enable, Is Disc, Length/Radius, Width, Multiplier, Cast Shadows, Color, Directional, Invisible, Set for Light Bake, Affect Diffuse, Affect Specular, Affect Reflections

Materials

Material Instances, V-Ray Material Instances with V-Ray Parent Materials:

VRayMtl
VRayCarpaintUberMtl
VRayPBRMtl

Render Elements

Denoiser (NVidia Ai, V-Ray)
Background, GI, Lighting, Reflection, Refraction, Specular, Self Illumination, Sub Surface Scattering
Diffuse Filter, Reflection Filter, Refraction Filter, Shadows
RenderID
Normals, Bump Normals, Sampler Info, Velocity, ZDepth
Light Select
Sample Rate, Unclamped Color, Noise Level

Light Baking

Light bake with V-Ray Bake
Exporting Lightmaps
Importing Lightmaps