> falloffs

Field Falloff

falloffs/field-falloff·v1.5.1

IN:2 OUT:1

SUMMARY

Field Falloff samples the POPX field on its second input at each point's position with trilinear interpolation, so the points and the field can have any resolution and box. Field Type reads the Field Attribute either as Dist, a signed distance that fades from 1 inside the surface to 0 at Falloff Distance or is output as the distance itself, or as Weight, an occupancy used directly.

Surface Offset grows or shrinks the surface before the falloff, and a field without Dist still works through a distance derived from its Weight. The shared remap, combine and preview controls match the rest of the falloff family, so any field from Field, Voxelize, Combine Field or a solver can drive the modifiers downstream, on POPX Geometry or plain POPs.

PARAMETERS

PAGEField

Group	Group	If there are input groups, specifying a group name in this field will cause this POP to act only upon the group specified.
[+]Field Type	Fieldsource	Determines how the Field Attribute is read: Dist (SDF) as a signed distance, negative inside, or Weight as an occupancy from 0 to 1.
Field Attribute	Fieldattr	The field attribute sampled at each point. Until one is picked it follows the Field Type: Dist for Dist (SDF), Weight for Weight.
[+]Distance Mapping	Distmode	Determines how the distance becomes the falloff: Falloff fades from 1 inside to 0 at Falloff Distance, Signed Distance outputs the distance itself.
Falloff Distance	Falloffdist	Distance outside the surface over which the falloff fades from 1 to 0. At 0 the edge is hard.
Surface Offset	Surfaceoffset	Moves the surface outward (positive) or inward (negative) before the falloff is computed.
Display Field Bounds	Displayfieldbounds	Draw the bounds of the field grid.

PAGEFalloff

[+]Combine Operation	Combineop	Specify how to combine this falloff with the existing falloff value.
Combine Falloff Attribute	Combattrscope	Sets the existing falloff attribute to combine with.
Swap Operation Order	Swaporder	Swaps the order of the operands. A operation B is changed to B operation A.
Combine Strength	Combstrength	Sets the blend of the combine operation, from 0 to 1.
Output Falloff Attribute	Outputfalloffattr	Name of the attribute the falloff is written to.
Preview Falloff	Previewfalloff	Enable coloring the points by the falloff.
[+]Falloff Ramp	Fallofframp	Selects the color ramp of the preview.
Open Custom Ramp Editor	Opencustomrampeditor	Open the editor of the custom preview ramp.
Reset Custom Ramp	Resetcustomramp	Resets the custom preview ramp.

PAGERemap

Enable Remap	Remap	Enable the remap controls.
Clamp	Clamp	Clamps the falloff values to the 0-1 range.
Fit	Fit	Enable fitting the values from the input range to the output range.
Auto Input Min Max	Auto	When on, the actual minimum and maximum values are used as the input range.
Input Min	Inputmin	Sets the minimum of the input range.
Input Max	Inputmax	Sets the maximum of the input range.
Output Min	Outputmin	Sets the minimum of the output range.
Output Max	Outputmax	Sets the maximum of the output range.
Invert	Invert	Invert the falloff, outputting 1 minus the value.
Enable Ramp Remap	Enablerampremap	Enable remapping the falloff through a ramp.
Open Ramp Editor	Openrampeditor	Opens the remap ramp editor.
Reset Ramp	Resetramp	Resets the remap ramp.
Custom Ramp TOP	Customramptop	Reference to a TOP used as the remap ramp, overriding the ramp editor.

PAGECommon

Bypass	Bypass	Pass through the first input to the output unchanged.
Free Extra GPU Memory	Freeextragpumem	Free memory that has accumulated when output memory has grown and shrunk.
Render Primitives	Renderprimitives	Whether to render the full POPX geometry. When off, only point instances are drawn.
Convert to Point Primitives	Converttoptprim	Enable converting points to point primitives when Render Primitives is off.
SRT / RST	Srtrst	Sets the transform order, SRT or RST, used when the points are rendered as TouchDesigner instances.

INPUTS

Input 0 POP - POPX/POP Geometry

Input 1 POP - Field

OUTPUTS

Output 0 POP - POPX/POP Geometry