Attribute Falloff
v1.3.0Falloffs
Summary
The Attribute Falloff converts existing point attributes into falloff values. This allows you to use any numeric attribute (such as point index, custom data, or calculated values) as a falloff source, providing flexible control over how modifiers and effects are applied across your geometry.
Can optionally combine the attribute-based falloff with existing falloff values using various mathematical operations, and includes remapping controls to fine-tune the output range and distribution.
Parameters
Group
GroupIf there are input groups, specifying a group name in this field will cause this POPX to act only upon the group specified.
Input Attribute
InputattrName of the point attribute to read and convert into falloff values. Default is _PointI (point index).
Combine Operation
CombopMathematical operation used to combine the attribute-based falloff with existing falloff values.
Add
addSubstractsubMultiplymultDividedivScreenscreenOverlayoverlayMaximummaxMinimumminSetsetCombine Falloff Attribute
CombattrscopeSpecifies which falloff attribute to combine with when Combine Operation is not set to Set.
Swap Operation Order
SwaporderReverses the order of operands in the combine operation (A op B becomes B op A).
Combine Strength
CombstrengthBlending factor for the combine operation, ranging from 0 (no effect) to 1 (full effect).
Output Falloff Attribute
OutputfalloffattrName of the attribute where the final falloff values will be stored.
Preview Falloff
PreviewfalloffWhen enabled, visualizes falloff values using a color ramp.
Falloff Ramp
FallofframpColor ramp preset used for visualizing falloff values when Preview Falloff is enabled.
Heatmap
heatmapBlackbodyblackbodyInfraredinfraredCustomcustomOpen Custom Ramp Editor
OpencustumrampeditorOpens the custom color ramp editor for defining a custom falloff visualization gradient.
Reset Custom Ramp
ResetcustomrampResets the custom color ramp to its default state.
Enable Remap
RemapEnables remapping controls for adjusting falloff value range and distribution.
Clamp
ClampWhen enabled, constrains falloff values to the 0-1 range.
Fit
FitEnables remapping of falloff values from an input range to an output range.
Auto Input Min Max
AutoAutomatically determines input range from actual min/max falloff values.
Input Min
InputminMinimum value of the input range for remapping.
Input Max
InputmaxMaximum value of the input range for remapping.
Output Min
OutputminMinimum value of the output range for remapping.
Output Max
OutputmaxMaximum value of the output range for remapping.
Invert
InvertReverses the falloff values (1 - value).
Enable Ramp Remap
EnablerampremapApplies a custom curve defined by a ramp to remap the falloff values.
Open Ramp Editor
OpenrampeditorOpens the ramp editor for defining the custom remapping curve.
Reset Ramp
ResetrampResets the remap ramp editor.
Custom Ramp TOP
CustomramptopReference to an external TOP for remap control. When specified, overrides the internal ramp editor.
Bypass
BypassPass through the first input to the output unchanged.
Free Extra GPU Memory
FreeextragpumemFree memory that has accumulated when output memory has grown and shrunk.
Render Primitives
RenderprimitivesToggles rendering of POPX Geometry or shows it as point instances only.
Convert to Point Primitives
ConverttoptprimConverts points to primitive points when Render Primitives is toggled off.
SRT / RST
SrtrstSets the transform order when using POPX Geometry as built-in TouchDesigner instances.
Inputs
Input 0
POPPOPX/POP Geometry
Outputs
Output 0
POPPOPX_out1