Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: wikit macro-replace (build 4280ad5-2021.10.08.115947) run by cwalker

...

Parameters

Barn Mode

Select a barn mode:physical (0) The barn behaves like an open window through which light falls. The falloff and blur are determined by the size of the light, the distance to the light, and the distance from the barn.analytic (1) The barn has a fixed projection and manual falloff controls. If possible, use Physical Barn.

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


Projection (For Analytic Barn Only)

Directional

When this is on, the texture projects along a direction using the orthographic projection. When it is off, the texture projects using a focal point specified by the Apex.

Carousel Image Slider
includepxrDome_intensity05.jpg, pxrDome_intensity10.jpg, pxrDome_intensity20.jpg
dotsfalse
columns3
infinitefalse
arrowsfalse
gutterSize20
titleIntensity
animatefalse
captionstrue
maxNumber3
sliderHeight190
labelsFilterdirectional
slidesToScroll01


Shear X

Shear the projection along the X-axis.

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


Shear Y

Shear the projection along the Y-axis.

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


Apex

Distance between the center of the barn and the center of projection. This is only applicable when Directional is off.

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


Use Light Direction

If this is on, the projection direction is determined by the position of the center of the light source. Otherwise, it only follows the orientation of the cookie. WARNING: This does not work with dome and mesh lights.

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

Barn Shape

Width

Width of the inner region of the barn (X-axis).

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


Height

Height of the inner region of the barn (y-axis).

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


Radius

The radius of the corners of the inner barn square.

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


Edge

The thickness of the edge region.

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


Pre Barn

The effect on the light before it reaches the barn.
  • no effect (0)
  • cone (1)
  • no light (2)

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



Scale

Scale Width

Scale the width of the inner barn shape (X axis).

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


Scale Height

Scale the height of the inner barn shape (Y axis).

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



Refine Edges

Left

The additional size of the left region (-X axis)

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


Right

The additional size of the right region (+X axis)

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


Bottom

The additional size of the bottom region (-Y axis)

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


Top

The additional size of the top region (+Y axis)

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



Scale Edges

Left Edge

Additional soft size of the left region (-X axis).

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


Right Edge

Additional soft size of the right region (+X axis).

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


Bottom Edge

Additional soft size of the bottom region (-Y axis).

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


Top Edge

Additional soft size of the top region (+Y axis).

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



Multiplier

Density

Controls the strength of this light filter.

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 result of this light filter 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



Density Falloff (For Analytic Barn Only)

Density Near

Distance from the barn where the density interpolation starts.

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


Density Far

Distance from the barn where the density interpolation ends.

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


Density Near Val

Density multiplier where the blur interpolation starts.

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


Density Far Val

Density multiplier where the blur interpolation ends.

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


Density Exponent

The exponent of the density interpolation.

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



Combine Mode

Combine Mode

mult: The results of all the filters are multiplied together

max: The maximum result from all filters is used. This works best for grey-scale light filters.

min: The minimum result from all filters is used. This works best for grey-scale light filters.

screen: Similar to the max operation, but it combines gradients in a smoother way. This works best for grey-scale light.

Light filters on a light that are grouped by their combined mode. Light filters in the same group are executed together and combined by the combined mode. The groups are executed in this order (max, min, screen, and then mult) and are multiplied together, which means a filter that turns things black in the mult group will zero out all other filters.