RENDERMAN 22 DOCUMENTATION

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PxrRampLightFilter uses a ramp to control the light. It may also be useful to artificially and artistically control light decay.

 

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Parameters

 

Ramp Direction

Ramp Type

Specify in which direction the ramp is applied.
  • distToLight(0) - distance to the light.
  • linear(1) - linear ramp.
  • spherical(2) - spherical ramp.
  • radial(3) - radial ramp.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterramptype
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Begin Distance

Distance where the ramp starts.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterbegindistance
gutterSize20
titleIntensity
animatefalse
captionstrue

 

End Distance

Distance where the ramp ends.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterenddistance
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Ramp

Ramp

Define the number of knots.

 

Ramp Knots

An array of knot values.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterrampknots
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Ramp Floats

An array of float values.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterrampfloats
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Ramp Interpolation

Type of ramp interpolation:

  • linear
  • catmull-rom
  • bspline
  • constant

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
columns3
arrowsfalse
gutterSize20
titleIntensity
animatefalse
autoplaytrue
captionstrue
maxNumber4
sliderHeight190
labelsFilterrampinterpolation
slidesToScroll1
autoplaySpeed2000

 

Multiplier

Density

Controls the strength of the projected effect.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterdensity
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Invert

Specify whether to invert the projected texture before it is applied.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterinvert
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Intensity

Global Multiplier for both the diffuse and specular contribution below.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterintensity
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Diffuse

Multiplier of this light filter result for the diffuse contribution.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterdiffuse
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Specular

Multiplier of this light filter result for the specular contribution.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFilterspecular
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Color Ramp

Color Ramp

Define the number of knots.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFiltercolorramp
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Color Ramp Knots

An array of knot values.

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber3
dotsfalse
columns3
infinitefalse
sliderHeight190
arrowsfalse
labelsFiltercolorrampknots
gutterSize20
titleIntensity
animatefalse
captionstrue

 

Ramp Colors

An array of color values.

 

Color Ramp Interpolation

Type of color ramp interpolation:

  • linear
  • catmull-rom
  • bspline
  • constant

 

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
columns3
arrowsfalse
gutterSize20
titleIntensity
animatefalse
autoplaytrue
captionstrue
maxNumber4
sliderHeight190
labelsFiltercolorampinterpolation
slidesToScroll1
autoplaySpeed2000

 

Combine Mode

Combine mode for PxrRampLightFilter is always multiplied.