#include <float.h>
#include "BLI_math_inline.h"

Classes
struct	Cloth
struct	ClothVertex
struct	ClothSpring
struct	CM_SOLVER_DEF
Defines
#define	DO_INLINE MALWAYS_INLINE
#define	CLOTH_MAX_THREAD 2
#define	SOFTGOALSNAP 0.999f
#define	ALMOST_ZERO FLT_EPSILON
#define	CLOTH_VERT_FLAG_PINNED 1
#define	CLOTH_VERT_FLAG_COLLISION 2
#define	CLOTH_VERT_FLAG_PINNED_EM 3
#define	VECADDADD(v1, v2, v3) {(v1)+= (v2) + (v3); (v1+1)+= (v2+1) + (v3+1); (v1+2)+= (v2+2) + *(v3+2);}
#define	VECSUBADD(v1, v2, v3) {(v1)-= (v2) + (v3); (v1+1)-= (v2+1) + (v3+1); (v1+2)-= (v2+2) + *(v3+2);}
#define	VECADDSUB(v1, v2, v3) {(v1)+= (v2) - (v3); (v1+1)+= (v2+1) - (v3+1); (v1+2)+= (v2+2) - *(v3+2);}
#define	VECSUBADDSS(v1, v2, aS, v3, bS) {(v1)-= (v2)aS + (v3)bS; (v1+1)-= (v2+1)aS + (v3+1)bS; (v1+2)-= (v2+2)aS + (v3+2)*bS;}
#define	VECADDSUBSS(v1, v2, aS, v3, bS) {(v1)+= (v2)aS - (v3)bS; (v1+1)+= (v2+1)aS - (v3+1)bS; (v1+2)+= (v2+2)aS - (v3+2)*bS;}
#define	VECADDSS(v1, v2, aS, v3, bS) {(v1)= (v2)aS + (v3)bS; (v1+1)= (v2+1)aS + (v3+1)bS; (v1+2)= (v2+2)aS + (v3+2)*bS;}
#define	VECADDS(v1, v2, v3, bS) {(v1)= (v2) + (v3)bS; (v1+1)= (v2+1) + (v3+1)bS; (v1+2)= (v2+2) + (v3+2)bS;}
#define	VECSUBMUL(v1, v2, aS) {(v1)-= (v2) * aS; (v1+1)-= (v2+1) * aS; (v1+2)-= (v2+2) * aS;}
#define	VECSUBS(v1, v2, v3, bS) {(v1)= (v2) - (v3)bS; (v1+1)= (v2+1) - (v3+1)bS; (v1+2)= (v2+2) - (v3+2)bS;}
#define	VECSUBSB(v1, v2, v3, bS) {(v1)= ((v2)- (v3))bS; (v1+1)= ((v2+1) - (v3+1))bS; (v1+2)= ((v2+2) - (v3+2))bS;}
#define	VECMULS(v1, aS) {(v1)= aS; (v1+1)= aS; (v1+2)= *aS;}
#define	VECADDMUL(v1, v2, aS) {(v1)+= (v2) * aS; (v1+1)+= (v2+1) * aS; (v1+2)+= (v2+2) * aS;}
Typedefs
typedef struct Cloth	Cloth
typedef struct ClothVertex	ClothVertex
typedef struct ClothSpring	ClothSpring
Enumerations
enum	CLOTH_SIMSETTINGS_FLAGS { CLOTH_SIMSETTINGS_FLAG_COLLOBJ = ( 1 << 2 ), CLOTH_SIMSETTINGS_FLAG_GOAL = ( 1 << 3 ), CLOTH_SIMSETTINGS_FLAG_TEARING = ( 1 << 4 ), CLOTH_SIMSETTINGS_FLAG_SCALING = ( 1 << 8 ), CLOTH_SIMSETTINGS_FLAG_CCACHE_EDIT = (1 << 12), CLOTH_SIMSETTINGS_FLAG_NO_SPRING_COMPRESS = (1 << 13) }
enum	CLOTH_COLLISIONSETTINGS_FLAGS { CLOTH_COLLSETTINGS_FLAG_ENABLED = ( 1 << 1 ), CLOTH_COLLSETTINGS_FLAG_SELF = ( 1 << 2 ) }
enum	CLOTH_SPRING_TYPES { CLOTH_SPRING_TYPE_STRUCTURAL = ( 1 << 1 ), CLOTH_SPRING_TYPE_SHEAR = ( 1 << 2 ), CLOTH_SPRING_TYPE_BENDING = ( 1 << 3 ), CLOTH_SPRING_TYPE_GOAL = ( 1 << 4 ) }
enum	CLOTH_SPRINGS_FLAGS { CLOTH_SPRING_FLAG_DEACTIVATE = ( 1 << 1 ), CLOTH_SPRING_FLAG_NEEDED = ( 1 << 2 ) }
enum	CM_SOLVER_ID { CM_IMPLICIT = 0 }
Functions
int	cloth_bvh_objcollision (struct Object ob, struct ClothModifierData clmd, float step, float dt)
int	implicit_init (struct Object ob, struct ClothModifierData clmd)
int	implicit_free (struct ClothModifierData *clmd)
int	implicit_solver (struct Object ob, float frame, struct ClothModifierData clmd, struct ListBase *effectors)
void	implicit_set_positions (struct ClothModifierData *clmd)
void	clmdSetInterruptCallBack (int(*f)(void))
void	cloth_free_modifier_extern (struct ClothModifierData *clmd)
void	cloth_free_modifier (struct ClothModifierData *clmd)
void	cloth_init (struct ClothModifierData *clmd)
struct DerivedMesh *	clothModifier_do (struct ClothModifierData clmd, struct Scene scene, struct Object ob, struct DerivedMesh dm)
void	cloth_update_normals (ClothVertex verts, int nVerts, struct MFace face, int totface)
int	cloth_uses_vgroup (struct ClothModifierData *clmd)
void	bvhtree_update_from_cloth (struct ClothModifierData *clmd, int moving)
void	bvhselftree_update_from_cloth (struct ClothModifierData *clmd, int moving)
void	cloth_clear_cache (struct Object ob, struct ClothModifierData clmd, float framenr)
int	cloth_add_spring (struct ClothModifierData *clmd, unsigned int indexA, unsigned int indexB, float restlength, int spring_type)

Detailed Description

Author:: Daniel Genrich

Definition in file BKE_cloth.h.

Define Documentation

#define ALMOST_ZERO FLT_EPSILON

Definition at line 55 of file BKE_cloth.h.

Referenced by cloth_calc_spring_force(), cloth_collision(), cloth_collision_response_static(), cloth_from_object(), and collision_compute_barycentric().

#define CLOTH_MAX_THREAD 2

Definition at line 48 of file BKE_cloth.h.

#define CLOTH_VERT_FLAG_COLLISION 2

Definition at line 59 of file BKE_cloth.h.

#define CLOTH_VERT_FLAG_PINNED 1

Definition at line 58 of file BKE_cloth.h.

Referenced by cloth_apply_vgroup(), cloth_bvh_objcollision(), cloth_from_object(), implicit_init(), and implicit_solver().

#define CLOTH_VERT_FLAG_PINNED_EM 3

Definition at line 60 of file BKE_cloth.h.

#define DO_INLINE MALWAYS_INLINE

Definition at line 46 of file BKE_cloth.h.

#define SOFTGOALSNAP 0.999f

Definition at line 51 of file BKE_cloth.h.

Referenced by cloth_apply_vgroup().

#define VECADDADD	(	v1,
		v2,
		v3
	)	{(v1)+= (v2) + (v3); (v1+1)+= (v2+1) + (v3+1); (v1+2)+= (v2+2) + *(v3+2);}

Definition at line 137 of file BKE_cloth.h.

Referenced by addadd_fmatrix_fmatrix().

#define VECADDMUL	(	v1,
		v2,
		aS
	)	{(v1)+= (v2) * aS; (v1+1)+= (v2+1) * aS; (v1+2)+= (v2+2) * aS;}

Definition at line 148 of file BKE_cloth.h.

Referenced by cloth_bvh_objcollisions_resolve(), cloth_collision_response_static(), and collision_interpolateOnTriangle().

#define VECADDS	(	v1,
		v2,
		v3,
		bS
	)	{(v1)= (v2) + (v3)bS; (v1+1)= (v2+1) + (v3+1)bS; (v1+2)= (v2+2) + (v3+2)bS;}

Definition at line 143 of file BKE_cloth.h.

Referenced by add_lfvector_lfvectorS(), cloth_calc_force(), cloth_calc_spring_force(), and collision_move_object().

#define VECADDSS	(	v1,
		v2,
		aS,
		v3,
		bS
	)	{(v1)= (v2)aS + (v3)bS; (v1+1)= (v2+1)aS + (v3+1)bS; (v1+2)= (v2+2)aS + (v3+2)*bS;}

Definition at line 142 of file BKE_cloth.h.

Referenced by add_lfvectorS_lfvectorS().

#define VECADDSUB	(	v1,
		v2,
		v3
	)	{(v1)+= (v2) - (v3); (v1+1)+= (v2+1) - (v3+1); (v1+2)+= (v2+2) - *(v3+2);}

Definition at line 139 of file BKE_cloth.h.

Referenced by addsub_fmatrix_fmatrix().

#define VECADDSUBSS	(	v1,
		v2,
		aS,
		v3,
		bS
	)	{(v1)+= (v2)aS - (v3)bS; (v1+1)+= (v2+1)aS - (v3+1)bS; (v1+2)+= (v2+2)aS - (v3+2)*bS;}

Definition at line 141 of file BKE_cloth.h.

Referenced by addsub_fmatrixS_fmatrixS().

#define VECMULS	(	v1,
		aS
	)	{(v1)= aS; (v1+1)= aS; (v1+2)= *aS;}

Definition at line 147 of file BKE_cloth.h.

#define VECSUBADD	(	v1,
		v2,
		v3
	)	{(v1)-= (v2) + (v3); (v1+1)-= (v2+1) + (v3+1); (v1+2)-= (v2+2) + *(v3+2);}

Definition at line 138 of file BKE_cloth.h.

Referenced by subadd_fmatrix_fmatrix().

#define VECSUBADDSS	(	v1,
		v2,
		aS,
		v3,
		bS
	)	{(v1)-= (v2)aS + (v3)bS; (v1+1)-= (v2+1)aS + (v3+1)bS; (v1+2)-= (v2+2)aS + (v3+2)*bS;}

Definition at line 140 of file BKE_cloth.h.

Referenced by subadd_fmatrixS_fmatrixS().

#define VECSUBMUL	(	v1,
		v2,
		aS
	)	{(v1)-= (v2) * aS; (v1+1)-= (v2+1) * aS; (v1+2)-= (v2+2) * aS;}

Definition at line 144 of file BKE_cloth.h.

Referenced by submul_lfvectorS().

#define VECSUBS	(	v1,
		v2,
		v3,
		bS
	)	{(v1)= (v2) - (v3)bS; (v1+1)= (v2+1) - (v3+1)bS; (v1+2)= (v2+2) - (v3+2)bS;}

Definition at line 145 of file BKE_cloth.h.

Referenced by sub_lfvector_lfvectorS().

#define VECSUBSB	(	v1,
		v2,
		v3,
		bS
	)	{(v1)= ((v2)- (v3))bS; (v1+1)= ((v2+1) - (v3+1))bS; (v1+2)= ((v2+2) - (v3+2))bS;}

Definition at line 146 of file BKE_cloth.h.

Typedef Documentation

typedef struct Cloth Cloth

This structure describes a cloth object against which the simulation can run.

The m and n members of this structure represent the assumed rectangular ordered grid for which the original paper is written. At some point they need to disappear and we need to determine out own connectivity of the mesh based on the actual edges in the mesh.

typedef struct ClothSpring ClothSpring

The definition of a spring.

typedef struct ClothVertex ClothVertex

The definition of a cloth vertex.

Enumeration Type Documentation

enum CLOTH_COLLISIONSETTINGS_FLAGS

Enumerator:

CLOTH_COLLSETTINGS_FLAG_ENABLED
CLOTH_COLLSETTINGS_FLAG_SELF

Definition at line 163 of file BKE_cloth.h.

enum CLOTH_SIMSETTINGS_FLAGS

Enumerator:

CLOTH_SIMSETTINGS_FLAG_COLLOBJ
CLOTH_SIMSETTINGS_FLAG_GOAL
CLOTH_SIMSETTINGS_FLAG_TEARING
CLOTH_SIMSETTINGS_FLAG_SCALING
CLOTH_SIMSETTINGS_FLAG_CCACHE_EDIT
CLOTH_SIMSETTINGS_FLAG_NO_SPRING_COMPRESS

Definition at line 152 of file BKE_cloth.h.

enum CLOTH_SPRING_TYPES

Enumerator:

CLOTH_SPRING_TYPE_STRUCTURAL
CLOTH_SPRING_TYPE_SHEAR
CLOTH_SPRING_TYPE_BENDING
CLOTH_SPRING_TYPE_GOAL

Definition at line 170 of file BKE_cloth.h.

enum CLOTH_SPRINGS_FLAGS

Enumerator:

CLOTH_SPRING_FLAG_DEACTIVATE
CLOTH_SPRING_FLAG_NEEDED

Definition at line 179 of file BKE_cloth.h.

enum CM_SOLVER_ID

Enumerator:

CM_IMPLICIT

Definition at line 239 of file BKE_cloth.h.

Function Documentation

void bvhselftree_update_from_cloth	(	struct ClothModifierData *	clmd,
		int	moving
	)

Definition at line 303 of file cloth.c.

References BLI_bvhtree_update_node(), BLI_bvhtree_update_tree(), Cloth::bvhselftree, ClothModifierData::clothObject, co, copy_v3_v3(), i, Cloth::mfaces, NULL, Cloth::numverts, ClothVertex::tx, ClothVertex::txold, and Cloth::verts.

Referenced by cloth_bvh_objcollision().

void bvhtree_update_from_cloth	(	struct ClothModifierData *	clmd,
		int	moving
	)

Definition at line 249 of file cloth.c.

References BLI_bvhtree_update_node(), BLI_bvhtree_update_tree(), Cloth::bvhtree, ClothModifierData::clothObject, co, copy_v3_v3(), i, Cloth::mfaces, NULL, Cloth::numfaces, ClothVertex::tx, ClothVertex::txold, MFace::v1, MFace::v2, MFace::v3, MFace::v4, and Cloth::verts.

Referenced by cloth_bvh_objcollision().

void clmdSetInterruptCallBack ( int(*)(void) f )

int cloth_add_spring	(	struct ClothModifierData *	clmd,
		unsigned int	indexA,
		unsigned int	indexB,
		float	restlength,
		int	spring_type
	)

Definition at line 988 of file cloth.c.

References BLI_linklist_prepend(), ClothModifierData::clothObject, ClothSpring::flags, ClothSpring::ij, ClothSpring::kl, MEM_callocN(), NULL, Cloth::numsprings, ClothSpring::restlen, Cloth::springs, ClothSpring::stiffness, and ClothSpring::type.

Referenced by cloth_from_object().

int cloth_bvh_objcollision	(	struct Object *	ob,
		struct ClothModifierData *	clmd,
		float	step,
		float	dt
	)

Definition at line 2361 of file collision.c.

References ABS, ClothVertex::avg_spring_len, BLI_bvhtree_overlap(), BLI_edgehash_haskey(), Cloth::bvhselftree, bvhselftree_update_from_cloth(), Cloth::bvhtree, CollisionModifierData::bvhtree, bvhtree_update_from_cloth(), cloth_bvh_objcollisions_nearcheck(), cloth_bvh_objcollisions_resolve(), CLOTH_COLLSETTINGS_FLAG_SELF, CLOTH_SIMSETTINGS_FLAG_COLLOBJ, CLOTH_SIMSETTINGS_FLAG_GOAL, CLOTH_VERT_FLAG_PINNED, ClothModifierData::clothObject, ClothModifierData::coll_parms, collision_move_object(), Cloth::edgehash, eModifierType_Collision, ClothCollSettings::flags, ClothVertex::flags, ClothSimSettings::flags, get_collisionobjects(), ClothCollSettings::group, i, BVHTreeOverlap::indexA, BVHTreeOverlap::indexB, length(), ClothCollSettings::loop_count, MAX2, MEM_callocN(), MEM_freeN(), MIN2, modifiers_findByType(), mul_v3_fl(), normalize_v3(), NULL, Cloth::numverts, ClothModifierData::scene, ClothCollSettings::self_loop_count, ClothCollSettings::selfepsilon, ClothModifierData::sim_parms, VECADD, VECSUB, and Cloth::verts.

Referenced by implicit_solver().

void cloth_clear_cache	(	struct Object *	ob,
		struct ClothModifierData *	clmd,
		float	framenr
	)

Definition at line 347 of file cloth.c.

References BKE_ptcache_id_clear(), BKE_ptcache_id_from_cloth(), PTCacheID::cache, PointCache::edit, Object::mode, OB_MODE_PARTICLE_EDIT, and PTCACHE_CLEAR_AFTER.

void cloth_free_modifier ( struct ClothModifierData * clmd )

Definition at line 558 of file cloth.c.

References BLI_bvhtree_free(), BLI_edgehash_free(), BLI_linklist_free(), Cloth::bvhselftree, Cloth::bvhtree, ClothModifierData::clothObject, Cloth::edgehash, CM_SOLVER_DEF::free, LinkNode::link, MEM_freeN(), Cloth::mfaces, LinkNode::next, NULL, Cloth::numsprings, Cloth::numverts, ClothModifierData::sim_parms, ClothSimSettings::solver_type, Cloth::springs, and Cloth::verts.

Referenced by BKE_ptcache_id_reset(), cloth_from_mesh(), cloth_from_object(), free_hair(), and hair_step().

void cloth_free_modifier_extern ( struct ClothModifierData * clmd )

Definition at line 627 of file cloth.c.

References BLI_bvhtree_free(), BLI_edgehash_free(), BLI_linklist_free(), Cloth::bvhselftree, Cloth::bvhtree, ClothModifierData::clothObject, Cloth::edgehash, CM_SOLVER_DEF::free, G, LinkNode::link, MEM_freeN(), Cloth::mfaces, LinkNode::next, NULL, Cloth::numsprings, Cloth::numverts, ClothModifierData::sim_parms, ClothSimSettings::solver_type, Cloth::springs, and Cloth::verts.

Referenced by freeData().

void cloth_init ( ClothModifierData * clmd )

cloth_init - creates a new cloth simulation.

1. create object 2. fill object with standard values or with the GUI settings if given

Definition at line 111 of file cloth.c.

Referenced by initData().

void cloth_update_normals	(	ClothVertex *	verts,
		int	nVerts,
		struct MFace *	face,
		int	totface
	)

int cloth_uses_vgroup ( struct ClothModifierData * clmd )

Definition at line 732 of file cloth.c.

References CLOTH_SIMSETTINGS_FLAG_GOAL, CLOTH_SIMSETTINGS_FLAG_SCALING, ClothSimSettings::flags, ClothModifierData::sim_parms, ClothSimSettings::vgroup_bend, ClothSimSettings::vgroup_mass, and ClothSimSettings::vgroup_struct.

Referenced by cloth_apply_vgroup(), and requiredDataMask().

struct DerivedMesh* clothModifier_do	(	struct ClothModifierData *	clmd,
		struct Scene *	scene,
		struct Object *	ob,
		struct DerivedMesh *	dm
	)		`[read]`

Definition at line 431 of file cloth.c.

References BKE_ptcache_get_continue_physics(), BKE_ptcache_id_from_cloth(), BKE_ptcache_id_reset(), BKE_ptcache_id_time(), BKE_ptcache_invalidate(), BKE_ptcache_read(), BKE_ptcache_validate(), BKE_ptcache_write(), CDDM_copy(), RenderData::cfra, cloth_to_object(), ClothModifierData::clothObject, do_init_cloth(), do_step_cloth(), ClothSimSettings::dt, PointCache::flag, DerivedMesh::getNumVerts, implicit_set_positions(), PointCache::last_exact, Cloth::last_frame, Cloth::numverts, ClothModifierData::point_cache, ClothSimSettings::preroll, PTCACHE_BAKED, PTCACHE_OUTDATED, PTCACHE_READ_EXACT, PTCACHE_READ_INTERPOLATED, PTCACHE_READ_OLD, PTCACHE_REDO_NEEDED, PTCACHE_RESET_OUTDATED, Scene::r, ClothSimSettings::reset, ClothModifierData::scene, ClothModifierData::sim_parms, PointCache::simframe, ClothSimSettings::stepsPerFrame, RenderData::subframe, and ClothSimSettings::timescale.

Referenced by applyModifier(), and do_hair_dynamics().

int implicit_free ( struct ClothModifierData * clmd )

int implicit_init	(	struct Object *	ob,
		struct ClothModifierData *	clmd
	)

void implicit_set_positions ( struct ClothModifierData * clmd )

Definition at line 1981 of file implicit.c.

References ClothModifierData::clothObject, G, i, Cloth::implicit, Cloth::numverts, ClothVertex::v, Implicit_Data::V, VECCOPY, Cloth::verts, ClothVertex::x, and Implicit_Data::X.

Referenced by cloth_from_object(), clothModifier_do(), and do_init_cloth().

int implicit_solver	(	struct Object *	ob,
		float	frame,
		struct ClothModifierData *	clmd,
		struct ListBase *	effectors
	)

Definition at line 1827 of file implicit.c.

References Implicit_Data::A, add_lfvector_lfvectorS(), Implicit_Data::B, Implicit_Data::bigI, Cloth::bvhtree, cloth_bvh_objcollision(), cloth_calc_force(), CLOTH_COLLSETTINGS_FLAG_ENABLED, CLOTH_SIMSETTINGS_FLAG_GOAL, CLOTH_VERT_FLAG_PINNED, ClothModifierData::clothObject, ClothModifierData::coll_parms, copy_v3_v3(), cp_lfvector(), Implicit_Data::dFdV, Implicit_Data::dFdX, Implicit_Data::dV, Implicit_Data::F, ClothCollSettings::flags, ClothVertex::flags, ClothSimSettings::flags, Cloth::implicit, Implicit_Data::M, MEM_callocN(), MEM_freeN(), mul_fvector_S(), mul_v3_fl(), Cloth::numverts, Implicit_Data::olddV, Implicit_Data::P, Implicit_Data::Pinv, Implicit_Data::S, ClothModifierData::sim_parms, simulate_implicit_euler(), step(), ClothSimSettings::stepsPerFrame, ClothSimSettings::timescale, ClothVertex::tv, ClothVertex::tx, Implicit_Data::V, VECADD, VECCOPY, VECSUB, Cloth::verts, Implicit_Data::Vnew, Implicit_Data::X, ClothVertex::xconst, Implicit_Data::Xnew, ClothVertex::xold, and Implicit_Data::z.

BKE_cloth.h File Referenceblenkernel

Classes

Defines

Typedefs

Enumerations

Functions

Detailed Description

Define Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation

BKE_cloth.h File Reference
blenkernel