R3SoftBodyMaterial Struct Reference

Plain configuration data; initialize defaults, edit, then apply. More...

#include <rapier.h>

Data Fields
struct R3SpringCoefficients	edgeSoftness
	Spring coefficients for structural edge constraints.
struct R3SpringCoefficients	bendSoftness
	Spring coefficients for bending edges and dihedrals.
struct R3SpringCoefficients	volumeSoftness
	Spring coefficients for cell and global volume constraints.
struct R3SpringCoefficients	shapeMatchingSoftness
	Spring coefficients for shape-matching constraints.
R3Real	youngModulus
	Elastic modulus: force per area in 3D, force per length in 2D; nonnegative.
R3Real	poissonRatio
	Poisson ratio for elastic cells, in [0, 0.5).
R3Real	elasticDampingRatio
	Nonnegative damping ratio of elastic cells.
R3Real	plasticYield
	Cell strain threshold for plastic flow; zero disables plasticity.
R3Real	plasticCreep
	Nonnegative rate per second at which excess cell strain becomes permanent.
R3Real	plasticMax
	Maximum accumulated cell plastic stretch, measured by the norm of P - I.
R3Real	deformationDamping
	Rate per second pulling particle velocities toward best-fit rigid motion; zero disables it.
R3Real	edgePlasticYield
	Edge strain threshold for plastic flow; zero disables plasticity.
R3Real	edgePlasticCreep
	Nonnegative rate per second at which excess edge strain becomes permanent.
R3Real	edgePlasticMax
	Maximum permanent edge-length change as a fraction of its initial length.
uint32_t	edgePlasticFlow
	Plastic flow direction: R3_SOFT_EDGE_PLASTIC_FLOW_BOTH, _COMPRESSION or _TENSION.
struct R3OptionalReal	tearStrain
	Optional strain threshold for tearing; disabled means no strain-based tearing.
struct R3OptionalReal	tearForce
	Optional tensile edge-force threshold for tearing.
R3Real	tearSmoothing
	Exponential load-smoothing time constant in seconds; zero disables smoothing.
R3Real	interiorStrength
	Tear-threshold multiplier for undamaged interior elements.
uint32_t	maxTearsPerStep
	Maximum ordinary edge tears per step; edges above twice their threshold bypass the limit.
struct R3OptionalU32	minPiece
	Optional minimum particle count of tear pieces.

Detailed Description

Plain configuration data; initialize defaults, edit, then apply.

No destructor.

Field Documentation

bendSoftness

struct R3SpringCoefficients R3SoftBodyMaterial::bendSoftness

Spring coefficients for bending edges and dihedrals.

deformationDamping

R3Real R3SoftBodyMaterial::deformationDamping

Rate per second pulling particle velocities toward best-fit rigid motion; zero disables it.

edgePlasticCreep

R3Real R3SoftBodyMaterial::edgePlasticCreep

Nonnegative rate per second at which excess edge strain becomes permanent.

edgePlasticFlow

uint32_t R3SoftBodyMaterial::edgePlasticFlow

Plastic flow direction: R3_SOFT_EDGE_PLASTIC_FLOW_BOTH, _COMPRESSION or _TENSION.

edgePlasticMax

R3Real R3SoftBodyMaterial::edgePlasticMax

Maximum permanent edge-length change as a fraction of its initial length.

edgePlasticYield

R3Real R3SoftBodyMaterial::edgePlasticYield

Edge strain threshold for plastic flow; zero disables plasticity.

edgeSoftness

struct R3SpringCoefficients R3SoftBodyMaterial::edgeSoftness

Spring coefficients for structural edge constraints.

elasticDampingRatio

R3Real R3SoftBodyMaterial::elasticDampingRatio

Nonnegative damping ratio of elastic cells.

interiorStrength

R3Real R3SoftBodyMaterial::interiorStrength

Tear-threshold multiplier for undamaged interior elements.

maxTearsPerStep

uint32_t R3SoftBodyMaterial::maxTearsPerStep

Maximum ordinary edge tears per step; edges above twice their threshold bypass the limit.

minPiece

struct R3OptionalU32 R3SoftBodyMaterial::minPiece

Optional minimum particle count of tear pieces.

plasticCreep

R3Real R3SoftBodyMaterial::plasticCreep

Nonnegative rate per second at which excess cell strain becomes permanent.

plasticMax

R3Real R3SoftBodyMaterial::plasticMax

Maximum accumulated cell plastic stretch, measured by the norm of P - I.

plasticYield

R3Real R3SoftBodyMaterial::plasticYield

Cell strain threshold for plastic flow; zero disables plasticity.

poissonRatio

R3Real R3SoftBodyMaterial::poissonRatio

Poisson ratio for elastic cells, in [0, 0.5).

shapeMatchingSoftness

struct R3SpringCoefficients R3SoftBodyMaterial::shapeMatchingSoftness

Spring coefficients for shape-matching constraints.

tearForce

struct R3OptionalReal R3SoftBodyMaterial::tearForce

Optional tensile edge-force threshold for tearing.

tearSmoothing

R3Real R3SoftBodyMaterial::tearSmoothing

Exponential load-smoothing time constant in seconds; zero disables smoothing.

tearStrain

struct R3OptionalReal R3SoftBodyMaterial::tearStrain

Optional strain threshold for tearing; disabled means no strain-based tearing.

volumeSoftness

struct R3SpringCoefficients R3SoftBodyMaterial::volumeSoftness

Spring coefficients for cell and global volume constraints.

youngModulus

R3Real R3SoftBodyMaterial::youngModulus

Elastic modulus: force per area in 3D, force per length in 2D; nonnegative.

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The documentation for this struct was generated from the following file:

• rapier.h