Supported Shaders (Autodesk)

This page lists the native Maya shaders that are either fully or partially supported by Redshift.

Maya Shaders

Surface

Anisotropic / Blinn / Lambert / Phong / PhongE

The following input parameters are not supported:

• Ambient Color (Common Material Attributes)
• Bump Mapping (Common Material Attributes)
• (Special Effects)
• (Matt Opacity)
• Light Absorbance (Raytrace Options)
• Surface Thickness (Raytrace Options)
• Shadow Attenuation (Raytrace Options)
• Chromatic Aberration (Raytrace Options)
• (Vector Renderer Control)

The following output parameters are not supported:

• outGlowColor
• outMatteOpacity

Internally the BRDF is translated to the Redshift material Ashikhmin-Shirley model, instead of the native Maya implementation.

SurfaceShader

The following parameters are not supported:

• Out Glow Color

LayeredShader

Due to memory restrictions, only 7 layers are supported.

2D Textures

Bulge

Checker

Cloth

File

The following parameters are not supported:

• Filter Type (see Renderer Settings -> Optimizations -> Texture Sampling) (File Attributes)
• Pre Filter (File Attributes)
• Pre Filter Radius (File Attributes)
• Use BOT (File Attributes)
• Disable File Load (File Attributes)
• (Interactive Sequence Caching Options)
• (High Dynamic Range Image Preview Options)
• (Effects)

Fractal

The following parameters are not supported:

• Level Min
• Filter Offset

Grid

Noise

The following parameters are not supported:

• Level Min
• Filter Offset

Placement2d

The following parameters are not supported:

• Noise
• Fast

Ramp

Due to memory limitation, Redshift only allows up to 8 ramp 'knots'.
Two ramp 'Type's are not currently supported ('Tartan' and 'UVRamp').

3D Textures

Brownian

The following parameters are not supported:

• Local
• Filter

SolidFractal

The following parameters are not supported:

• Local
• Filter

Snow

The following parameters are not supported:

• Local
• Filter

Other Textures

LayeredTexture

Due to memory limitation, Redshift only allows up to 8 texture layers.

Environment

EnvBall

Utility

AddDoubleLinear

AngleBetween

BlendColors

Clamp

Condition

Contrast

DistanceBetween

GammaCorrect

HSVToRgb

Luminance

MultDoubleLinear

MultiplyDivide

plusMinusAverage

Due to memory limitation, Redshift only allows up to 8 items in each array.

Projection

The following parameters are not supported:

• Local
• Filter, Filter Offset
• Blend
• Noise Attributes / Recursion Depth

When used for displacement or bump mapping, the colorGain/Offset, alphaGain/Offset and defaultColor are not support. Please use the equivalent parameters in the texture node instead.

Reverse

RGBToHsv

VectorProduct

RemapColor

RemapHsv

RemapValue

SetRange

SamplerInfo

This page lists the native Softimage shaders that are either fully or partially supported by Redshift.

Softimage Shaders

Illumination

Architectural / Architectural (multi-out)

The following parameters are not supported:

• Texture Space (Transparency/Reflection -> Anisotropy)
• Radiance (Indirect Illumination -> Global Illumination/Caustics/Final Gathering)
• Ray Multiplier (Indirect Illumination -> Final Gather)
• Additional Multiplier (Indirect Illumination -> Final Gather)
• Detail Enhancement (Ambient Occlusion)
• Grid Density (Optimization -> Interpolate Reflection/Refraction)
• Single Environment Sample (Optimization -> Interpolate Reflection/Refraction)
• Enable (Optimization -> Interpolate Reflection/Refraction -> Refraction)
• Samples (Optimization -> Interpolate Reflection/Refraction -> Refraction)
• Enable (Optimization -> Interpolate Reflection/Refraction -> Reflection)
• Samples (Optimization -> Interpolate Reflection/Refraction -> Reflection)
• Distance On (Optimization -> Interpolate Reflection/Refraction -> Reflection)
• Distance (Optimization -> Interpolate Reflection/Refraction -> Reflection)
• Enable (Optimization -> Falloff)
• Distance (Optimization -> Falloff)
• Use End Color (Optimization -> Falloff)
• Color (Optimization -> Falloff)
• Turn Off Visible Area Light Highlights (Additional Options -> Remove Effects)
• Turn Off Bumps for Diffuse Only (Additional Options -> Remove Effects)
• Enable Backface Culling (Additional Options -> Add Effects)
• Bump Mode (Additional Options -> Global Settings)

Internally, this shader is mapped to the Redshift Architectural shader, which is similar in many respects. The most noticeable differences between the shaders are as follows: specular highlights behave differently and Cutout Opacity is a binary operation with values < 0.5 being cut-out.
The multi-out feature of this shader is not supported by Redshift.

Anisotropic, Blinn, Constant, Cook-Torrance, Lambert , Phong, Strauss

The following parameters are not supported:

• Radiance (Indirect Illumination -> Global Illumination/Caustics/Final Gathering)
• Filter Radiance with Diffuse (this is the default behavior) (Indirect Illumination -> Global Illumination/Caustics/Final Gathering)

Phong and Strauss specular highlights will appear stronger, because internally our implementation is the Ashikhmin-Shirley model.
Blinn specular highlights will appear different, because internally our implementation is the Ashikhmin-Shirley model.
Constant shaders do not receive any indirect lighting.
Photon reflection strength and color come from the Transparency/Reflection properties, NOT specular properties.

Car_Paint

The following parameters are not supported:

• Optimize Environment Sampling (Reflection -> Optimization Settings)
• Global Weight (Advanced -> Indirect Lighting)

Specular highlights will appear stronger, because internally we use a modified Blinn-Phong lighting model that attempts to be 'physically correct'.
Photon material connectivity is also fully supported.
Internally this is mapped to the Redshift CarPaint shader.

Ambient_Occlusion

Output Mode 'Return Bent Normals (Object Space)' is the same as 'Return Bent Normals (World Space)'. This is because internally our normals are always in world space.

Incidence

The following options for 'mode' are not supported:

• Camera / Lights
• Camera / Lights (Light List)
• Surface / Lights
• Surface / Lights (Light List)

Matte Shadow (mip)

The following parameters are not supported:

• No Self Shadow
• Indirect Catch (see notes)
• Additional Illumination 'illuminators' lists (see notes)

'Indirect Catch' is implicitly enabled when 'Additional Illumination Catch' is checked, this is because internally direct lighting and indirect lighting both use the 'Indirect' color to tint diffuse lighting results.To enable 'illuminator' lights to catch CG lighting on the matte surface, check the 'Matte Shadow Illuminator' option of the Redshift Physical Light and Redshift IES Lights.

Texture

Camera Map(mip)

The following parameters are not supported:

• Multiplier
• De-Gamma

'Multiplier' and 'De-Gamma' are ignored because Redshift uses the 'Exposure' and 'Color Profile' options of the texture clip to achieve the same result.

Cell, Checkerboard, Fabric, Fractal, Grid, Ripple, Rock, Vein

The following parameters are not supported:

• Enable (Texture -> Bump Mapping)
• Use Alpha (Texture -> Bump Mapping)
• Factor (Texture -> Bump Mapping)
• Step (Texture -> Bump Mapping)

Fractal_Scalar

The following parameters are not supported:

• Time
• Texture Coordinate

Gradient

The following parameters are not supported:

• Enable (Texture -> Bump Mapping)
• Use Alpha (Texture -> Bump Mapping)
• Factor (Texture -> Bump Mapping)
• Step (Texture -> Bump Mapping)

Parameters Pos_Color(1-8), Pos_Alpha(1-8) and Mid_Alpha(1-8) are NOT texturable.

Image, Scalar_Image

The following parameters are not supported:

• Enable (Texture -> Bump Mapping)
• Use Alpha (Texture -> Bump Mapping)
• Factor (Texture -> Bump Mapping)
• Step (Texture -> Bump Mapping)
• Bump Mapping (Image Filtering -> Elliptical Filtering -> Apply To)
• Maximum eccentricity (Image Filtering -> Elliptical Filtering)
• Maximum pixels for Min Radius (Image Filtering -> Elliptical Filtering)
• Disc Radius (Image Filtering -> Elliptical Filtering)
• Bilinear Interpolation (always enabled for magnification) (Image Filtering -> Elliptical Filtering)

Light_Surface (mia)

The following parameters are not supported:

• Get Intensity From Light List (Lights (Optional))

Internally this is mapped to the Redshift Incandescent Material shader.

Bump

Bump_Generator

The following parameters are not supported:

• Base normal (always relative to the surface normal) (Texture -> Bump Mapping -> Normal)
• Input normal (Texture -> Bump Mapping -> Normal)
• Step (Texture -> Bump Mapping)
• Maximum pixels for Min Radius (Image Filtering -> Elliptical Filtering)
• Disc Radius (Image Filtering -> Elliptical Filtering)
• Bilinear Interpolation (always enabled for magnification) (Image Filtering -> Elliptical Filtering)

Internally the Step (and thus bump gradient) is calculated automatically, which will vary with bump-map texture resolution. Because of this, you will notice stark bump 'strength' differences between Softimage and Redshift renders, with results more similar to the Bump_Map shader.

Bump_Map

Sample Spacing is only used when a procedural texture shader is connected to the input parameter. When an Image shader is connected, the behavior will be the same as in the Bump_Generator shader.
Due to a current limitation Redshift will only produce correct results for the Bump_Map shader if the input parameter is of a 2D texture type which has been sampled using t-space coordinates. An example of an incorrect result would be if you were to connect an Image Correction shader between reading the 2D texture and the Bump_Map shader.

XSINormalMap3

The following parameters are not supported:

• Unbiased Tangents (we attempt to determine this automatically) (General -> Tangents)

Environment

Environment

PhysicalSky (mia)

The following parameters are not supported:

• Use Background
• Visibility Distance

Internally this is mapped to the Redshift PhysicalSky shader.

Light

Soft Light

Below are the parameters that are not supported:

• Flat Light Mode
• Distance Attenuation – Mode, Start Falloff, End Falloff (Redshift natively supports either Inverse-Square distance decay or none)
• Shape Attenuation

Portal Light (mia)

Below are the parameters that are not supported:

• Visible in Render
• Shadow Offset
• Use Custom Environment Shader (this will always be true if an explicit environment shader has been attached to this node)
• Light Cutoff Threshold (instead we have a global option for this under Optimizations/Cut-off Thresholds/Shadow)

Physical Sun (mia)

Slide Projector

Processing / Switch

Front-Back Switch

Ray Type Switch

Below are the parameters that are not supported:

• Shadow Color
• Shadow Modulation
• Photon

Texture Array Switch

Color Switch

Scalars Switch

Processing / Math

Color Average

Color Basic

Color Exponent

Color In Range

Color Logic

Color Smooth Range

Color Unary

Scalar Basic

Scalar Change Range

Scalar Exponent

Scalar In Range

Scalar Logic

Scalar Smooth Range

Scalar Unary

Exponent Falloff

Redshift renders will produce different results to Softimage renders.

Linear Falloff

Boolean Invert

Boolean Logic

Vector-Vector

Vector-Scalar

Processing / Conversion

Boolean To Color

Color To Boolean

Color To Scalar

Color To Scalars

Color To Vector

HSV To RGB

RGB To HSV

Integer To Scalar

Scalar To Boolean

Scalar To Color

Scalar To Integer

Scalars To Vector

Vector Coordinate Converter

Redshift currently only supports 'to Camera' Transform mode. More support coming soon.

Vector To Color

Vector To Scalar

Vector To Scalars

Processing / Image Processing

Color Balance

Color Correction

Color HLS Adjust

Intensity

Invert

Scalar Invert

RGBA Keyer

Processing / Color Channels

HLSA Combine

HSVA Combine

RGBA Combine

Color To Alpha

RGBA Split

Processing / Mixers

Gradient

Parameters Pos_Color(1-8), Pos_Alpha(1-8) and Mid_Alpha(1-8) are NOT texturable.

Mix 2 Colors

When used to blend material shaders, only Mix and Add blend modes are supported fully.

Data

Scalar_State

The following parameters are not supported:

• State Parameter: Screen Position: Raster X
• State Parameter: Screen Position: Raster Y
• State Parameter: Motion Blur Time
• State Parameter: Index of Refraction of outgoing ray
• State Parameter: Index of Refraction of ingoing ray
• State Parameter: Barycentric A / Crosswise Hair
• State Parameter: Barycentric B / Lengthwise Hair
• State Parameter: Barycentric C / Spline Hair Interpolant

This shader currently has very limited support. All unsupported State Parameters will return 0.

Vector_State

The following parameters are not supported:

• State Parameter: Motion Vector
• State Parameter: Texture Vector

Data / Map Lookup

Color Map Lookup

Texture sampling is not supported.

Scalar Map Lookup

Texture sampling is not supported.

Vertex Color

Texture Space Generators

Projection Lookup

This page lists the native 3ds Max shaders that are either fully or partially supported by Redshift.

3ds Max Shaders

Materials

Architectural

The following input parameters are not supported:

• Luminance cd/m2
• 2-sided (always enabled)
• 'Advanced Lighting Override' options
• 'SuperSampling' options

Internally the specular reflections are translated to the Redshift material Ashikhmin-Shirley model, instead of the native Max implementation, so some tweaking will be required to look the same

Blend

Double Sided

The following input parameters are not supported:

• Translucency

Matte/Shadow

The following input parameters are not supported:

• Opaque Alpha
• 'Atmosphere' options
• Affect Alpha (always enabled)

For a more comprehensive feature set, please use the Redshift matte object property, or Matte Shadow Catcher material.

Multi/Sub-Obj

Shellac

Standard

The following input parameters are not supported:

• Wire
• 2-Sided (always enabled)
• Face Map
• Faceted
• 'Strauss' BRDF
• 'SuperSampling' options

Internally the specular reflections are translated to the Redshift material Ashikhmin-Shirley model, instead of the native Max implementation, so some tweaking will be required to look the same

Top/Bottom

Maps

Bitmap

The following parameters are not supported:

• Blur / Blur offset
• 'Noise' options
• 'Filtering' options (use Redshift Global Opt settings instead)

Cellular

The following parameters are not supported:

• Blur / Blur offset

Checker

The following parameters are not supported:

• Blur / Blur offset

Color Correction

Composite

Dent

Falloff

The following parameters are not supported:

• 'Shadow / Light' Falloff Type
• Extrapolate

Gradient

The following parameters are not supported:

• Blur / Blur offset

Gradient Ramp

The ramp is limited to 8 textured knots.

Mask

Mix

Noise

The following parameters are not supported:

• Blur / Blur offset

Particle Age

RGB Multiply

RGB Tint

Speckle

Smoke

Splat

Tiles

Vector Displacement

Vertex Color