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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

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	ramptype
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
type = linear	type = radial	type = sphere

Begin Distance

Distance where the ramp starts.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	begindistance
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
begin distance = 0	begin distance = 3	begin distance = 6

End Distance

Distance where the ramp ends.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	enddistance
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
end distance = 5	end distance = 7	end distance = 9

Ramp

Ramp

Define the number of knots.

Image Added

Ramp Knots

An array of knot values.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	rampknots
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added

Ramp Floats

An array of float values.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	rampfloats
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added

Ramp Interpolation

Type of ramp interpolation:

linear
catmull-rom
bspline
constant

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
columns	3
arrows	false
gutterSize	20
title	Intensity
animate	false
autoplay	true
captions	true
maxNumber	4
sliderHeight	190
labelsFilter	rampinterpolation
slidesToScroll	1
autoplaySpeed	2000

Image Added	Image Added	Image Added	Image Added
linear	catmull-rom	bspline	constant

Multiplier

Density

Controls the strength of the projected effect.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	density
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
density = 0.65	density = 0.85	density = 1.0

Invert

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

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	invert
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added
invert = off	invert =on

Intensity

Global Multiplier for both the diffuse and specular contribution below.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	intensity
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
intensity = 1.0	intensity = 1.5	intensity = 2.5

Diffuse

Multiplier of this light filter result for the diffuse contribution.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	diffuse
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
diffuse = 1	diffuse = 2	diffuse = 3

Specular

Multiplier of this light filter result for the specular contribution.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	specular
gutterSize	20
title	Intensity
animate	false
captions	true

Image Added	Image Added	Image Added
specular = 1	specular = 2	specular = 3

Color Ramp

Color Ramp

Define the number of knots.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	colorramp
gutterSize	20
title	Intensity
animate	false
captions	true

Color Ramp Knots

An array of knot values.

Carousel Image SliderincludepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpgmaxNumber3dotsfalsecolumns3infinitefalsesliderHeight190arrowsfalselabelsFiltercolorrampknotsgutterSize20titleIntensityanimatefalsecaptionstrue

Ramp Colors

An array of color values.

Color Ramp Interpolation

Type of color ramp interpolation:

linear
catmull-rom
bspline
constant

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
columns	3
arrows	false
gutterSize	20
title	Intensity
animate	false
autoplay	true
captions	true
maxNumber	4
sliderHeight	190
labelsFilter	colorampinterpolation
slidesToScroll	1
autoplaySpeed	2000