Third Party

V-Ray™ and 3ds-Max™ to MDL Features and Limitations

3ds-Max Connect supports the conversion of native V-Ray to MDL materials on export. Where possible we support as many of the native V-Ray parameters as we can as well as some common 3dsMax nodes. However in some cases it’s not always achievable. The following table shows the currently support list of shaders along with any limitations in parameter conversion.

Note

Vray 5 or 6 is required to utilize the Vray export features of the 3dsMax Omniverse Connector.

Status

Renderer dependent

Renderer Dependent

In-progress

In Progress

Not implemented

Not Implemented

V-Ray

Shader

Status

Limitations and Unsupported Parameters

VrayMtl


Not Implemented
Renderer Dependent
Renderer Dependent
Renderer Dependent
Renderer Dependent
Renderer Dependent

Not Implemented
Renderer Dependent
Renderer Dependent
Renderer Dependent

Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Renderer Dependent
Renderer Dependent
Renderer Dependent

Renderer Dependent
Renderer Dependent

Not Implemented
Not Implemented

Not Implemented
Not Implemented
Renderer Dependent
Not Implemented
Not Implemented
Not Implemented
Not Implemented

Renderer Dependent
Renderer Dependent
Renderer Dependent
Renderer Dependent
Renderer Dependent
Renderer Dependent
Not Implemented
Renderer Dependent
Renderer Dependent
Renderer Dependent
Not Implemented
Reflection
- Fresnel IOR unlocked
- Max depth
- Reflection on back side
- Dim distance
- Dim falloff
- Affect channels
Refraction
- Abbe Number
- Max depth
- Affected channels
- Affected shadows
Fog
- Fog Color
- Fog multiplier
- Fog bias
Translucency
- Translucency
- Scatter coeff
- Fwd/Bck
- Thickness
- Back-side color
- Light multiplier
Self-Illumination
- GI
- Compensate camera exposure
Sheen
- Sheen color
- Sheen glossiness
BRDF
- Type: Phong, Blinn, Ward, GGX
- Use glossiness / Use roughness
- GTR tail falloff
- Anisotropy
- Rotation
- Local axis
- Map channel
Options
- Trace reflections
- Trace refractions
- Cutoff
- Env. Priority
- Double-sided
- Use irradiance map
- Fog system unit scaling
- Effect ID
- Glossy Fresnel
- Preserve energy
- Opacity mode

VrayFastSSS


Renderer Dependent
Renderer Dependent

Renderer Dependent
Renderer Dependent
Renderer Dependent
Renderer Dependent
Specular Layer Parameters
- Trace reflections
- Reflection depth
Options
- Single Scatter
- Refraction depth
- Scatter GI
- Cutoff threshold

VrayNormalMap


Not Implemented
Not Implemented
Basic Parameters
- Map Channel
- Map Rotation

VrayLightMtl


Renderer Dependent
In Progress

Renderer Dependent
Renderer Dependent
Basic Parameters
- Compensate camera exposure
- Displace
Direct Illumination
- On
- Cutoff

VrayBlendMtl



Vray2SidedMtl


Not Implemented
Not Implemented
Basic Parameters
- Multiply by front diffuse
- Force Single sided sub-mtl

VrayDirt



VrayEdgesTex


Not Implemented
Not Implemented

Not Implemented
Not Implemented

Not Implemented
Not Implemented

Not Implemented
Color
- Hidden edges
- Show subtriangles
Width
- World width
- Pixel width
Corners
- Convex only
- Concave only
Width/Radius Multiplier
- Multiplier

Vray Color


Not Implemented
Not Implemented
Color Primaries
- sRGB
- ACEScg

Vray Bitmap



Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented


Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented

Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Mapping
Mapping Type
- Angular
- Cubic
- Spherical
- Mirrored Ball
- Mapping source
Ground Projection
Processing
- Render mult.
- Filter mult.
- Interpolation
- Filtering
Crop/Place
- Place
UDIM/UVTILE Preview in material Editor
- RGB Primaries
Coordinates
- Angle U/V/W
- UV/VW/WU
- Blur
- Blur offset
Texture mapping
- Mapping: Vertex map channel
- Mapping Planar from Object XYZ
- Mapping Planar from World XYZ
- Use Real-World Scale
Environment mapping
- Mapping: Spherical env.
- Mapping: Cylindrical env.
- Mapping: Shrink wrap env.
- Mapping: screen

VRayColor2Bump


Not Implemented
Not Implemented

- Height:
- Bump Delta Scale:

VRayBump2Normal


Not Implemented
Not Implemented

- Map Channel:
- Mode: Only Tangent Space Supported

VRayCarpaintMtl



Not Implemented
Not Implemented

- Flake Layer: MDL uses different technique to generate Flakes, therefore these parameters are not used in MDL.
- Flake Layer: Flake Filtering
- Flake Layer: Flake Map Size

3ds-Max

Shader

Limitations and Unsupported Parameters

Noise


Not Implemented


Not Implemented
Not Implemented
Not Implemented
Noise Type
- Fractal
Coordinates
Source
- Vertex Color Channel
- Blur
- Blur Offset

Dent



Not Implemented
Not Implemented
Not Implemented
Coordinates
Source
- Vertex Color Channel
- Blur
- Blur Offset

Mix



Color Correction


Not Implemented
Not Implemented
Not Implemented
Lightness Advanced
- RGB Gain
- RGB Pivot
- RGB Lift / Offset

Bitmap Texture


Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented


Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented

Not Implemented
Not Implemented

Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Coordinates
- Angle U/V/W
- UV/VW/WU
- Blur
- Blur offset
Texture Mapping
- Mapping: Vertex map channel
- Mapping: Planar from Object XYZ
- Mapping: Planar from World XYZ
- Use Real-World Scale
Environment mapping
- Mapping: Spherical env.
- Mapping: Cylindrical env.
- Mapping: Shrink wrap env.
- Mapping: screen
Noise
- On
- Amount
- Level
- Size
- Animate
- Phase
Bitmap Parameters
Filtering
- Pyramidal
- Summed Area
- None
Mono Channel Output
- RGB Intensity
- Alpha
RGB Channel Output
- RGB
- Alpha as Grey
Cropping/Placement
- Apply
- U/V/W/H
Alpha Source
- Image Alpha
- RGB Intensity
- None (opaque)
- Premultiplied alpha
Time
- Start Frame
- Playback Rate
- Sync Frames to Particle Age
End Condition
- Loop
- Ping Pong
- Hold
Output
- Output amount
- Clamp
- RGB offset
- Alpha from RGB Intensity
- RGB level
- Enable Color Map
- Bump Amount

Falloff


Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Falloff Parameters
- Front / Side color/maps
Falloff Type
- Perpendicular/Parallel
- Towards/Away
- Fresnel (F)
- F: Override Material IOR
- F: IOR
- Shadow/Light
- Distance Blend (DB)
- DB: Near Distance
- DB: Far Distance
- DB: Extrapolated
Falloff Direction
- Viewing Direction (cam z)
- Camera X/Y Axis
- Object
- Local X/Y/Z Axis
- World X/Y/Z Axis

Composite



Blend



Top/Bottom


Not Implemented
Not Implemented
Parameters
- Position
- Coordinates

Gradient Ramp


Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented

Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Coordinates
- Angle U/V/W
- UV/VW/WU
- Blur
- Blur offset
Texture mapping
- Mapping: Vertex map channel
- Mapping: Planar from Object XYZ
- Mapping: Planar from World XYZ
- Use Real-World Scale
Environment mapping
- Mapping: Spherical env.
- Mapping: Cylindrical env.
- Mapping: Shrink wrap env.
- Mapping: screen
Noise
- On
- Amount
- Level
- Size
- Animate
- Phase
Output
- Output amount
- Clamp
- RGB offset
- Alpha from RGB Intensity
- RGB level
- Enable Color Map
- Bump Amount

Standard Output

Not Implemented
Not Implemented
- Output amount, fixed at 1.0
- Enable color map

V-Ray™ Light Support

Lights are mapped to USD Lights on export.

Light Type

USD Light Type

Vray Light (Plane)

- USD Rect Light
Length and Width are interchanged with USD Length and Width. Max will modify these on import/export

Note

V-Ray and the V-Ray logo, Phoenix FD and the Phoenix FD logo are registered trademarks of Chaos Software Ltd. in Bulgaria and/or other countries. Autodesk, the Autodesk logo, 3ds Max are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries.