User Manual

Gain
This control increases or decreases the brightest parts of the noise map.
Brightness
This control adjusts the overall brightness of the noise map, before any gradient color mapping
is applied. In Gradient mode, this produces a similar effect to the Offset control.
Translation
Use the Translation coordinate control to pan and move the noise pattern.
Noise Rotation
Use the Rotation controls to orient the noise pattern in 3D.
Seethe
Adjust this thumbwheel control to interpolate the noise map against a different noise map. This
will cause a crawling shift in the noise, like it was drifting or flowing. This control must be
animated to affect the noise over time.
Discontinuous
Normally, the Noise function interpolates between values to create a smooth, continuous
gradient of results. Enable this checkbox to create hard discontinuity lines along some of the
noise contours. The result will be a dramatically different effect.
Inverted
Select this checkbox to invert the noise, creating a negative image of the original pattern. This
is most effective when Discontinuous is also enabled.
Camera Tab
For a perfect evaluation of a fog volume, a camera or 3D scene can be connected to the Scene
input of the node.
Camera
If multiple cameras are available in the connected Scene input, this menu allows the selection
of the correct camera needed to evaluate the fog volume. Instead of connecting a camera,
position values can be provided manually or by connecting the XYZ values to other controls.
Translation Pick
Drag the Pick button into the viewer to select XYZ coordinates from any 3D scene or 2D image
containing XYZ values, like a rendered World Pass, to define the center of the camera. When
picking from a 2D image, make sure it’s rendered in 32-bit float to get full precision.
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