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SelectPulse Node

SelectPulse is a thresholding operator. It selects values within a specified range defined by the shape of a Gaussian pulse.

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Category

Terrain Features/Selector

Inputs

Name Type Description
input VirtualArray Input heightmap.

Outputs

Name Type Description
output VirtualArray Mask heightmap (in [0, 1]).

Parameters

Name Type Description
Gain Float Mid-centered gain transformation applied to the elevation values. This is a non-linear recurve operator centered around the mid elevation (typically 0.5). Increasing the gain pushes values toward the minimum and maximum elevations, creating flatter low/high regions with a steeper transition around the midpoint.
Gamma Float Standard gamma correction applied to the elevation values. This is a monotonic power-law remapping that shifts emphasis toward low or high elevations, making the overall shape sharper or bulkier without changing its ordering.
Invert Output Bool Inverts the output values after processing, flipping low and high values across the midrange.
Remap Range Value range Linearly remaps the output values to a specified target range (default is [0, 1]).
Saturation Range Value range Modifies the amplitude of elevations by first clamping them to a given interval and then scaling them so that the restricted interval matches the original input range. This enhances contrast in elevation variations while maintaining overall structure.
Smoothing Radius Float Defines the radius for post-processing smoothing, determining the size of the neighborhood used to average local values and reduce high-frequency detail. A radius of 0 disables smoothing.
sigma Float Selection half-width.
value Float Selection center value.

Example

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