User Manual

Table Of Contents
Inspector
Controls Tab
The Controls tab is used to set the filter type, the channels the filter is applied to, and the
amount it blends with the original image.
Filter Type
The Filter Type menu provides a selection of filter types described below.
Relief: This appears to press the image into metal, such as an image on a coin. The
image appears to be bumped and overlaid on gray.
Emboss Over: Embosses the image over the top of itself, with adjustable highlight and
shadow height and direction.
Noise: Uniformly adds noise to images. This is often useful for 3D computer-generated
images that need to be composited with live action, as it reduces the squeaky-clean
look that is inherent in rendered images. The frame number acts as the random
generator seed. Therefore, the effect is different on each frame and is repeatable.
Defocus: This filter type blurs the image.
Sobel: Sobel is an advanced edge detection filter. Used in conjunction with a Glow
filter, it creates impressive neon light effects from live-action or 3D-rendered images.
Laplacian: Laplacian is a very sensitive edge detection filter that produces a finer edge
than the Sobel filter.
Grain: Adds noise to images similar to the grain of film (mostly in the midrange). This is
useful for 3D computer-generated images that need to be composited with live action
as it reduces the squeaky-clean look that is inherent in rendered images. The frame
number acts as the random generator seed. Therefore, the effect is different on each
frame and is repeatable.
Color Channels (RGBA)
The Filter node defaults to operating on R, G, B, and A channels. Selective channel editing is
possible by enabling or disabling the checkboxes beside each channel.
Power
Values range from 1 to 10. Power proportionately increases the amount by which the selected
filter affects the image. This does not apply to the Sobel or Laplacian filter type.
Angle
This control has a range from 0 to 315 degrees and changes the effect in increments of 45
degrees. This applies only to the Relief and Emboss filters.
Chapter – 91 Filter Nodes 2043