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Constraint Property

tools/constraint-property·v1.5.1

IN:3 OUT:3

SUMMARY

Constraint Property sits between a Constraints operator and Nexus and passes the geometry, constraint and target streams through together. The Geometry page transforms the mesh and every constraint's rest follows the change, so the transformed shape becomes the new rest state.

Each property can be set or scaled by a value, then by a map read from a float point attribute of the geometry and promoted per constraint by average, minimum, maximum or multiply. Constraint Group limits the edits to part of the stream, such as the stretch or bend output groups of the Constraints operator, for painted, spatially varying stiffness or breaking.

PARAMETERS

PAGEGeometry

[+]Transform Order	Xord	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.
[+]Rotate Order	Rord	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.
[+]Translate	T	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.
[+]Rotate	R	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.
[+]Scale	S	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.
[+]Pivot	P	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.
Uniform Scale	Scale	Transforms the geometry; the constraint rests follow it (lengths, angles, areas, volumes, pin and shape targets), so the transformed geometry is at rest.

PAGEConstraints

Constraint Group	Constraintgroup	Edit only the records in this point group of the constraint stream. Leave empty to edit every record.
Enable	Enablestiff	Enable modification of stiffness values.
[+]Stiffness Scale	Stiffscale	Sets the stiffness scale factor in powers of 10. Higher values create more rigid constraints.
Stiffness	Stiffness	Sets the stiffness value, scaled by Stiffness Scale and applied by Operation.
[+]Operation	Stiffop	Determines how the stiffness modification is applied.
Enable	Enabledampratio	Enable modification of damping ratio values.
Damping Ratio	Dampingratio	Sets the damping ratio, from 0 to 1. Higher values reduce oscillation.
[+]Operation	Dampratioop	Determines how the damping ratio modification is applied.
Enable	Enablerestscale	Enable modification of rest length scale values.
Rest Length Scale	Restscale	Sets or scales RestLengthScale. The solver uses RestLength times RestLengthScale and never changes the measured RestLength.
[+]Operation	Restscaleop	Determines how the rest length scale modification is applied.
Enable	Enableplasticthreshold	Enable modification of plastic threshold values.
Plastic Threshold	Plasticthreshold	Sets the strain threshold before plastic deformation begins.
[+]Operation	Plasticthresholdop	Determines how the plastic threshold modification is applied.
Enable	Enableplasticrate	Enable modification of plastic rate values.
Plastic Rate	Plasticrate	Sets the rate of plastic deformation per frame once the threshold is exceeded.
[+]Operation	Plasticrateop	Determines how the plastic rate modification is applied.
Enable	Enableplastichardening	Enable modification of plastic hardening values.
Plastic Hardening	Plastichardening	Sets the increase in stiffness as plastic deformation accumulates.
[+]Operation	Plastichardeningop	Determines how the plastic hardening modification is applied.
Enable	Enablebreakthreshold	Enable modification of break threshold values.
Break Threshold	Breakthreshold	Sets the value at which the constraint breaks, measured as chosen in Break Type. Below 0 it never breaks.
[+]Operation	Breakthresholdop	Determines how the break threshold modification is applied.
Enable	Enablebreaktype	Enable setting the break type.
[+]Break Type	Breaktype	Determines what Break Threshold measures: the stretch or bend impulse, the stretch distance, the stretch ratio, or the bend angle in degrees.

PAGEMap

[+]Point Promotion	Promote	Determines how a point attribute of the geometry becomes one value per constraint, promoted over the constraint's points.
Enable	Enablestiffmap	Enable attribute-based stiffness mapping.
[+]Stiffness Scale	Stiffscalemap	Sets the scale factor for attribute-driven stiffness in powers of 10.
Attribute	Stiffattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Stiffopmap	Determines how the attribute values modify the stiffness.
Enable	Enabledampratiomap	Enable attribute-based damping ratio mapping.
Attribute	Dampratioattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Dampratioopmap	Determines how the attribute values modify the damping ratio.
Enable	Enablerestscalemap	Enable attribute-based rest length scale mapping.
Attribute	Restscaleattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Restscaleopmap	Determines how the attribute values modify the rest length scale.
Enable	Enableplasticthresholdmap	Enable attribute-based plastic threshold mapping.
Attribute	Plasticthresholdattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Plasticthresholdopmap	Determines how the attribute values modify the plastic threshold.
Enable	Enableplasticratemap	Enable attribute-based plastic rate mapping.
Attribute	Plasticrateattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Plasticrateopmap	Determines how the attribute values modify the plastic rate.
Enable	Enableplastichardeningmap	Enable attribute-based plastic hardening mapping.
Attribute	Plastichardeningattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Plastichardeningopmap	Determines how the attribute values modify the plastic hardening.
Enable	Enablebreakthresholdmap	Enable attribute-based break threshold mapping.
Attribute	Breakthresholdattr	Sets the float point attribute the map reads; a vector averages its components. Each constraint takes it from its points by Point Promotion.
[+]Operation	Breakthresholdopmap	Determines how the attribute values modify the break threshold.

PAGECommon

Free Extra GPU Memory

Freeextragpumem

Free memory that has accumulated when output memory has grown and shrunk.

INPUTS

Input 0 POP - Geometry

Input 1 POP - Constraints

Input 2 POP - Target Geometry

OUTPUTS

Output 0 POP - Geometry

Output 1 POP - Constraints

Output 2 POP - Target Geometry