RENDERMAN 22 DOCUMENTATION

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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 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
slidesToScroll0

 

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 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

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

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

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

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

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

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 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 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 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 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

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 are grouped by their combine mode. Light filters in the same group are executed together and combined by the combine 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.