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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.

Image Removed

type = lineartype = radial

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

type = sphere

Begin Distance

Distance where the ramp starts.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.

Image Removed

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

begin distance = 0begin distance = 3begin distance = 6

End Distance

Distance where the ramp ends.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.

Image Removed

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

end distance = 5end distance = 7end distance = 9

Ramp

Ramp

Define the number of knots.

Image Removed

Ramp Knots

An array of knot values.

Image Removed

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

Ramp Floats

An array of float values.

Image Removed

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

Ramp Interpolation

Type of ramp interpolation:

linear
catmull-rom
bspline
constant

Image Removed

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

linearcatmull-rombsplineconstant

Multiplier

Density

Controls the strength of the projected effect.

Image Removed

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

density = 0.65density = 0.85density = 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.

Image Removed

invert = offinvert =on

jpg
maxNumber	3
dots	false
columns	3
infinite	false
sliderHeight	190
arrows	false
labelsFilter	invert
gutterSize	20
title	Intensity
animate	false
captions	true

Intensity

Global Multiplier for both the diffuse and specular contribution below.

Image Removed

intensity = 1.0intensity = 1.5intensity = 2.5

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

Diffuse

Multiplier of this light filter result for the diffuse contribution.

Carousel Image Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.

Image Removed

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

diffuse = 1diffuse = 2diffuse = 3

Specular

Multiplier of this light filter result for the specular contribution.

Image Removed

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

specular = 1specular = 2specular = 3

Color Ramp

Color Ramp

Define the number of knots.

Image Removed

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 Slider

include	pxrDome_intensity05.jpg, pxrDome_intensity10.

Image Removed

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

Ramp Colors

An array of color values.

Image Removed

Color Ramp Interpolation

Type of color ramp interpolation:

linear
catmull-rom
bspline
constant

Image Removed

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

linear catmull-rombsplineconstant

Combine Mode

Combine mode for PxrRampLightFilter is always multiplied.

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Versions Compared

Old Version 4

New Version 5

Key

Parameters

Ramp Direction

Ramp

Multiplier

Color Ramp

Combine Mode

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