light

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This class contains the "shape" information for all lights.

This node is abstract

Related nodes

camera, dropoffLocator, ambientLight, nonAmbientLightShapeNode, nonExtendedLightShapeNode, areaLight, directionalLight, spotLight, pointLight

Attributes (51)

The following quick index only shows top-level attributes (too many attributes to show them all): centerOfIllumination, color (3), infoBits, intensity, lightData (14), locatorScale, matrixEyeToWorld, matrixWorldToEye, objectId, opticalFXvisibility (3), pointCamera (3), primitiveId, rayDepth, rayDepthLimit, raySampler, renderState, shadowColor (3), shadowRays, useRayTraceShadows, uvCoord (2), uvFilterSize (2)

Long name (short name)	Type	Default	Flags
centerOfIllumination (col)	double	5.0
Distance to the center of illumination
color (cl)	float3	1.0, 1.0, 1.0
The input color.
colorR (cr) float 0.0 The red component of the input color.
colorG (cg) float 0.0 The green component of the input color.
colorB (cb) float 0.0 The blue component of the input color.
matrixEyeToWorld (etw)	fltMatrix	identity
The matrix that takes eye to world.
infoBits (ib)	integer	0
Information bits passing along information about type of shading
intensity (in)	float	1.0
The intensity fo the light.
lightData (ltd)	lightData	NULL
The lighting information this node computes.
lightDirection (ld) float3 The light direction. lightDirectionX (ldx) float 0.0 The x component of the direction. lightDirectionY (ldy) float 0.0 The y component of the direction. lightDirectionZ (ldz) float 0.0 The z component of the direction.
lightIntensity (li) float3 The light intensity (its a colour). lightIntensityR (lir) float 0.0 The red component of the intensity. lightIntensityG (lig) float 0.0 The green component of the intensity. lightIntensityB (lib) float 0.0 The blue component of the intensity.
lightAmbient (la) bool false The boolean that indicates if the light has an ambient component.
lightDiffuse (ldf) bool false 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 pre shadow light intensity.
lightBlindData (lbl) addr NULL The light's blind data.
locatorScale (lls)	double	1.0
Scale factor for the light locator.
shadowRays (shr)	short	1
The number of rays used for soft shadow sampling.
objectId (oi)	addr	0
TrenderGroup*
opticalFXvisibility (ov)	float3	1.0, 1.0, 1.0
The visibility of the light (for optical FX)
opticalFXvisibilityR (ovr) float 0.0 The red component of the visibility of the light (for optical FX)
opticalFXvisibilityG (ovg) float 0.0 The green component of the visibility of the light (for optical FX)
opticalFXvisibilityB (ovb) float 0.0 The blue component of the visibility of the light (for optical FX)
pointCamera (p)	float3	1.0, 1.0, 1.0
The surface point.
pointCameraX (px) float 0.0 The x-component of the position.
pointCameraY (py) float 0.0 The y-component of the position.
pointCameraZ (pz) float 0.0 The z-component of the position.
primitiveId (pi)	integer	0
TrenderGroup*
rayDepth (rd)	short	0
ray depth of the current ray
rayDepthLimit (rdl)	short	3
max ray depth allowed
raySampler (rts)	addr	0
TraySampler*
renderState (rdst)	integer	0
the render state, i.e. depthMap computation, pre-illuimnation, regular rendering, post processing, raytracing, etc.
shadowColor (sc)	float3	0.0, 0.0, 0.0
The input shadow color.
shadColorR (scr) float 0.0 The red component of the input shadow color.
shadColorG (scg) float 0.0 The green component of the input shadow color.
shadColorB (scb) float 0.0 The blue component of the input shadow color.
useRayTraceShadows (urs)	bool	true
Do I ray trace my shadows?
uvCoord (uv)	float2	0.0, 0.0
The UV coords of the current sample point
uCoord (uu) float 0.0 The u component of the current sample position
vCoord (vv) float 0.0 The v component of the current sample position
uvFilterSize (fq)	float2	0.0, 0.0
The sample (filter) size
uvFilterSizeX (fsx) float 0.0 The X size of the filter (sample)
uvFilterSizeY (fsy) float 0.0 The Y size of the filter (sample)
matrixWorldToEye (wte)	fltMatrix	identity
The matrix that takes world space to eye space