User Manual

Enable Remapping
When remapping is enabled, the currently selected aux channel is rescaled, linearly mapping
the range according to the From and To slider selections as explained below. The Remapping
options are applied before the conversion operation. This means you could set the From >
Min-Max values to -1, 1 to rescale your normals into the [0, 1] range, or set them to [-1000, 0] to
rescale your Z values from [-1000, 0] into the [0, 1] range before the clipping occurs.
Note that the Remapping options are per channel options. That means the default scale for
normals can be set to [-1, +1] > [0, 1] and for Z it can be set [-1000, 0] > [0, 1]. When you flip
between normals and Z, both options are remembered. One way this could be useful is that you
can set up the remapping ranges and save this as a setting that you can reuse. The remapping
can be useful to squash the aux channels into a static [0, 1] range for viewing or, for example, if
you wish to compress normals into the [0, 1] range to store them in an int8 image.
 From > Min: This is the value of the aux channel that corresponds to To > Min.
 From > Max: This is the value of the aux channel that corresponds to To > Max. It
is possible to set the max value less than the min value to achieve a flip/inversion
of the values.
 Detect Range: This scans the current image to detect the min/max values and then sets
the From > Min/ From > Max Value controls to these values.
 Update Range: This scans the current image to detect the min/max values and then
enlarges the current [From > Min, From > Max] region so that it contains the min/max
values from the scan.
 To >Min: This is the minimum output value, which defaults to 0.
 To > Max: This is the maximum output value, which defaults to 1.
 Invert: After the values have been rescaled into the [To > Min, To > Max] range, this
inverts/flips the range.
Settings Tab
The Settings tab in the Inspector is also duplicated in other Color nodes. These common
controls are described in detail at the end of this chapter in “The Common Controls” section.
Chapter – 85 Color Nodes 1883