standardSurface

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The Standard Surface node has all the attribute of a basic modern PBR shader.

In the table below, important attribute have their names indicated in bold in the description column.

Related nodes

lambert, phongE, phong, blinn, anisotropic, volumeShader, simpleVolumeShader, surfaceShader, displacementShader, layeredShader, useBackground, defaultShaderList, shadingMap

Attributes (121)

Attribute quick index omitted (too many attributes to show them all).

Long name (short name)	Type	Default	Flags
base (b)	float	1.0
Scalar multiplier for base color.
baseColor (bc)	float3
Surface base color (albedo).
baseColorR (bcr) float 0.8 Base color red value.
baseColorG (bcg) float 0.8 Base color green value.
baseColorB (bcb) float 0.8 Base color blue value.
coat (ct)	float	0
Weight of coat layer.
coatAffectColor (ctac)	float	0
How much to additionally modulate reflection color from layers beneath the coat.
coatAffectRoughness (ctar)	float	0
How much to affect the roughness of the layers beneath the coat.
coatAnisotropy (cta)	float	0
Reflection anisotropy of coat layer.
coatColor (ctc)	float3
Tint color for the light coming from all layers beneath the coat.
coatColorR (ctcr) float 1 Coat color red value.
coatColorG (ctcg) float 1 Coat color green value.
coatColorB (ctcb) float 1 Coat color blue value.
coatIOR (ctior)	float	1.5
Index of refraction for coat layer.
coatNormal (ctn)	float3
Represents the surface normal for coat layer. Not editable, but connectable for bump mapping.
coatNormalX (ctnx) float 0 Coat normal X value.
coatNormalY (ctny) float 0 Coat normal Y value.
coatNormalZ (ctnz) float 0 Coat normal Z value.
coatRotation (ctro)	float	0
Rotation of anisotropy (1 means 180°).
coatRoughness (ctr)	float	0.1
Coat reflection roughness.
diffuseRoughness (dr)	float	0
Roughness of diffuse layer.
emission (e)	float	0
Emission color multiplier.
emissionColor (ec)	float3
Emission color
emissionColorR (ecr) float 1 Emission color red value.
emissionColorG (ecg) float 1 Emission color green value.
emissionColorB (ecb) float 1 Emission color blue value.
lightDataArray (ltd)	lightData	nullptr
The lighting information this node computes.
lightDirection (ld) float3 The light direction. lightDirectionX (ldx) float 1.0 The x component of the direction. lightDirectionY (ldy) float 1.0 The y component of the direction. lightDirectionZ (ldz) float 1.0 The z component of the direction.
lightIntensity (li) float3 The light intensity (it's a colour). lightIntensityR (lir) float 1.0 light intensity red value lightIntensityG (lig) float 1.0 light intensity green value lightIntensityB (lib) float 1.0 light intensity blue value
lightAmbient (la) bool true The boolean that indicates if the light has an ambient component.
lightDiffuse (ldf) bool true The boolean that indicates if the light has a diffuse component.
lightSpecular (ls) bool false The boolean that indicates if the light has a specular component.
lightShadowFraction (lsf) float 0.0 The visibility fraction to the light. value is in [0,1]
preShadowIntensity (psi) float 0.0 The light intensity without taking shadow into account.
lightBlindData (lbd) addr 0 The light's blind data.
metalness (m)	float	0
With metalness 1.0 the surface behaves like a metal, using fully specular reflection and complex fresnel.
normalCamera (n)	float3
Normal Camera represents the surface normals in the camera's space. (These are used to calculate shading.) To do Bump Mapping, connect the output of a bump node to this attribute.
normalCameraX (nx) float 1.0 normal camera x value
normalCameraY (ny) float 1.0 normal camera Y value
normalCameraZ (nz) float 1.0 normal camera Z value
objectId (oi)	addr	0
Unique integer that identifies the object being rendered.
opacity (op)	float3
The opacity of the surface.
opacityR (opr) float 1 Opacity red value.
opacityG (opg) float 1 Opacity green value.
opacityB (opb) float 1 Opacity blue value.
outColor (oc)	float3
Out Color is the final output color generated by this node. If you are using this node as one of the layers in a Layered Shader, then you will need to connect this attribute to the Color input of the Layered Shader.
outColorR (ocr) float 0.0 out color red value
outColorG (ocg) float 0.0 out color green value
outColorB (ocb) float 0.0 out color blue value
outTransparency (ot)	float3
Out Transparency is the final output transparency generated by this node. If you are using this node as one of the layers in a Layered Shader, then you will need to connect this attribute to the Transparency input of the Layered Shader.
outTransparencyR (otr) float 0.0 out transparency red value
outTransparencyG (otg) float 0.0 out transparency green value
outTransparencyB (otb) float 0.0 out transparency blue value
pointCamera (pc)	float3
surface intersection point in camera space
pointCameraX (px) float 1.0 point camera x component
pointCameraY (py) float 1.0 point camera y component
pointCameraZ (pz) float 1.0 point camera z component
primitiveId (pi)	integer	0
triangle id
rayDepth (rd)	short	0
current ray depth
rayDirection (rad)	float3
The ray direction.
rayDirectionX (rdx) float 0.0 The x component of the direction.
rayDirectionY (rdy) float 0.0 The y component of the direction.
rayDirectionZ (rdz) float 1.0 The z component of the direction.
rayInstance (ryi)	integer	0
Unique ray identifier controlling the sampling distribution for volume light depth map shadows, fluid volume rendering, light fog, ray traced shadows, and motion blur.
raySampler (rtr)	addr	0
ray sample pointer
sheen (sh)	float	0.0
Weight of sheen layer.
sheenColor (shc)	float3
Reflection color of sheen layer.
sheenColorR (shcr) float 1 Sheen color red value.
sheenColorG (shcg) float 1 Sheen color green value.
sheenColorB (shcb) float 1 Sheen color blue value.
sheenRoughness (shr)	float	0.3
Reflection roughness of sheen layer.
specular (s)	float	1.0
Scalar multiplier for specular color.
specularAnisotropy (sa)	float	0
Reflection anisotropy of specular reflections.
specularColor (sc)	float3
The color the specular reflection will be modulated with. Use this color to 'tint' the specular highlight.
specularColorR (scr) float 1 Specular color red value.
specularColorG (scg) float 1 Specular color green value.
specularColorB (spb) float 1 Specular color blue value.
specularIOR (sior)	float	1.5
Index of refraction for specular reflections and refraction.
specularRotation (srot)	float	0
Rotation of anisotropy (1 means 180°).
specularRoughness (sr)	float	0.4
Specular reflection roughness. Squared internally in order to achieve a more uniform roughness look over the value range.
subsurface (sub)	float	0
Subsurface scattering weight.
subsurfaceAnisotropy (suba)	float	0
Anisotropy of the subsurface medium phase function.
subsurfaceColor (subc)	float3
Subsurface scattering color.
subsurfaceColorR (subcr) float 1 Subsurface color red value.
subsurfaceColorG (subcg) float 1 Subsurface color green value.
subsurfaceColorB (subcb) float 1 Subsurface color blue value.
subsurfaceRadius (subr)	float3
Subsurface radii (i.e. mean free paths) of the red, green, and blue channels.
subsurfaceRadiusR (subrr) float 1 Subsurface radius red value.
subsurfaceRadiusG (subrg) float 1 Subsurface radius green value.
subsurfaceRadiusB (subrb) float 1 Subsurface radius blue value.
subsurfaceScale (subs)	float	1
Scalar weight for Subsurface Radius.
tangentUCamera (utan)	float3
u-tangent at sample point
tangentUCameraX (utnx) float 1.0 Tangent X value.
tangentUCameraY (utny) float 1.0 Tangent Y value.
tangentUCameraZ (utnz) float 1.0 Tangent Z value.
thinFilmIOR (tfior)	float	1.5
Index of refraction for thin film layer.
thinFilmThickness (tft)	float	0
Thickness of the thin film layer (in nanometres).
thinWalled (tw)	bool	false
If true, the object is considered infinitely thin and the surface double-sided.
transmission (t)	float	0
Scalar multiplier for transmission color.
transmissionColor (trc)	float3
Transmission color, i.e. tint.
transmissionColorR (trcr) float 1 Transmission color red value.
transmissionColorG (trcg) float 1 Transmission color green value.
transmissionColorB (trcb) float 1 Transmission color blue value.
transmissionDepth (td)	float	0
The distance travelled inside the material by white light before its color becomes exactly transmissionColor by Beer's law, determining the extinction coefficient of the interior medium; if zero, transmissionColor acts as a constant (on-surface) transmission tint.
transmissionDispersion (tdi)	float	0
Dispersion Abbe number, describing how much the index of refraction varies across wavelengths.
transmissionExtraRoughness (ter)	float	0
Additional (positive or negative) roughness on top of specular roughness.
transmissionScatter (ts)	float3
Scattering coefficient of the interior medium.
transmissionScatterR (tsr) float 0 Transmission scatter red value.
transmissionScatterG (tsg) float 0 Transmission scatter green value.
transmissionScatterB (tsb) float 0 Transmission scatter blue value.
transmissionScatterAnisotropy (tsa)	float	0
The anisotropy of the Henyey-Greenstein phase function of the interior medium.
triangleNormalCamera (tnc)	float3
Triangle Normal In Camera Space This is the normal of the visible triangle in the camera space. This normal is used to check the reflection direction is not in the opposite direction of the normal of the visible triangle.
triangleNormalCameraX (tnx) float 0.0 Triangle normal X value.
triangleNormalCameraY (tny) float 1.0 Triangle normal Y value.
triangleNormalCameraZ (tnz) float 0.0 Triangle normal Z value.