User Manual

Z Slices
The higher the Z Slices value, the more images from the connected Fog image sequence will
be used to form the depth of the volume.
You can, for example, use a Fast Noise with a high Seethe Rate to create such a sequence of
images. Be careful with the resolution of the images. Higher resolutions can require a large
amount of memory. As a rule of thumb, a resolution of 256 x 256 pixels with 256 Z Slices (i.e.,
forming a 256 x 256 x 256 cubic volume, which will use up to 256 MB for full color 32-bit float
data) should give you a good starting point.
First Slice Time
Determines which frame of the Global Range is used to deliver the first slice from the
connected fog image sequence.
Make sure that both Global In and Global Out, as well as the valid range of your source node,
fall within the range of First Slice Time + Z Slices.
Color
Allows you to modify the color of the fog generated. This will multiply over any color provided
by the connected Fog image.
Gain
Increases or decreases the intensity of the fog. More Gain will lead to a stronger glow and less
transparency in the fog. Lower values let the fog appear less dense.
Subtractive/Additive Slider
Similar to the Merge node, this value controls whether the fog is composed onto the image in
Additive or Subtractive mode, leading to a brighter or dimmer appearance of the fog.
Fog Only
This option outputs the generated fog on a black background, which then can be composited
manually or used as a mask on a Color Corrector for further refinement.
Noise Tab
The Noise tab controls the shape and pattern of the noise added to the fog.
Detail
Increase the value of this slider to produce a greater level of detail in the noise result. Larger
values add more layers of increasingly detailed noise without affecting the overall pattern. High
values take longer to render but can produce a more natural result.
Chapter – 104 Position Nodes 2332