#include "BLI_math_vector_types.hh"

Classes
struct	CollPair
struct	EdgeCollPair
struct	FaceCollPair
struct	CollisionRelation
struct	ColliderCache

Functions
BVH Tree Utilities
Used in modifier.cc from collision.cc.
struct BVHTree *	bvhtree_build_from_mvert (const float(positions)[3], const blender::int3 vert_tris, int tri_num, float epsilon)
void	bvhtree_update_from_mvert (struct BVHTree bvhtree, const float(positions)[3], const float(positions_moving)[3], const blender::int3 vert_tris, int tri_num, bool moving)
Collision Modifier Data
void	collision_move_object (struct CollisionModifierData *collmd, float step, float prevstep, bool moving_bvh)
void	collision_get_collider_velocity (float vel_old[3], float vel_new[3], struct CollisionModifierData collmd, struct CollPair collpair)

Collision Data Types
Used for collisions in collision.cc.
enum	COLLISION_FLAGS { COLLISION_IN_FUTURE = (1 << 1) , COLLISION_INACTIVE = (1 << 4) }
typedef struct CollPair	CollPair
typedef struct EdgeCollPair	EdgeCollPair
typedef struct FaceCollPair	FaceCollPair

Collision Relations
Collision relations for dependency graph build.
typedef struct CollisionRelation	CollisionRelation
struct ListBase *	BKE_collision_relations_create (struct Depsgraph depsgraph, struct Collection collection, unsigned int modifier_type)
void	BKE_collision_relations_free (struct ListBase *relations)
struct Object **	BKE_collision_objects_create (struct Depsgraph depsgraph, struct Object self, struct Collection collection, unsigned int numcollobj, unsigned int modifier_type)
void	BKE_collision_objects_free (struct Object **objects)

Collision Cache
typedef struct ColliderCache	ColliderCache
struct ListBase *	BKE_collider_cache_create (struct Depsgraph depsgraph, struct Object self, struct Collection *collection)
void	BKE_collider_cache_free (struct ListBase **colliders)

Typedef Documentation

◆ ColliderCache

typedef struct ColliderCache ColliderCache

◆ CollisionRelation

typedef struct CollisionRelation CollisionRelation

◆ CollPair

typedef struct CollPair CollPair

◆ EdgeCollPair

typedef struct EdgeCollPair EdgeCollPair

◆ FaceCollPair

typedef struct FaceCollPair FaceCollPair

Enumeration Type Documentation

◆ COLLISION_FLAGS

enum COLLISION_FLAGS

Enumerator
COLLISION_IN_FUTURE
COLLISION_INACTIVE

Definition at line 25 of file BKE_collision.h.

Function Documentation

◆ BKE_collider_cache_create()

struct ListBase * BKE_collider_cache_create	(	struct Depsgraph *	depsgraph,
		struct Object *	self,
		struct Collection *	collection )

Create effective list of colliders from relations built beforehand. Self will be excluded.

Definition at line 1328 of file collision.cc.

References BKE_modifiers_findby_type(), BLI_addtail(), CollisionModifierData::bvhtree, col, collision_move_object(), DEG_get_collision_relations(), DEG_get_evaluated(), depsgraph, eModifierType_Collision, LISTBASE_FOREACH, MEM_callocN(), and self.

Referenced by dynamics_step(), and eff_calc_visibility().

◆ BKE_collider_cache_free()

void BKE_collider_cache_free ( struct ListBase ** colliders )

Definition at line 1365 of file collision.cc.

References BLI_freelistN(), and MEM_freeN().

Referenced by eff_calc_visibility().

◆ BKE_collision_objects_create()

struct Object ** BKE_collision_objects_create	(	struct Depsgraph *	depsgraph,
		struct Object *	self,
		struct Collection *	collection,
		unsigned int *	numcollobj,
		unsigned int	modifier_type )

Create effective list of colliders from relations built beforehand. Self will be excluded.

Definition at line 1281 of file collision.cc.

References BLI_listbase_count(), PartDeflect::deflect, DEG_get_collision_relations(), DEG_get_evaluated(), depsgraph, eModifierType_Collision, LISTBASE_FOREACH, MEM_calloc_arrayN(), MEM_freeN(), num, Object::pd, and self.

Referenced by ccd_build_deflector_hash(), ccd_update_deflector_hash(), cloth_bvh_collision(), dynamicPaint_doStep(), query_external_colliders(), and surface_getBrushFlags().

◆ BKE_collision_objects_free()

void BKE_collision_objects_free ( struct Object ** objects )

Definition at line 1321 of file collision.cc.

References MEM_freeN().

Referenced by ccd_build_deflector_hash(), ccd_update_deflector_hash(), cloth_bvh_collision(), dynamicPaint_doStep(), query_external_colliders(), and surface_getBrushFlags().

◆ BKE_collision_relations_create()

struct ListBase * BKE_collision_relations_create	(	struct Depsgraph *	depsgraph,
		struct Collection *	collection,
		unsigned int	modifier_type )

Create list of collision relations in the collection or entire scene. This is used by the depsgraph to build relations, as well as faster lookup of colliders during evaluation.

Definition at line 1252 of file collision.cc.

References add_collision_object(), BASE_ENABLED_RENDER, BASE_ENABLED_VIEWPORT, BKE_collection_or_layer_objects(), DAG_EVAL_RENDER, DEG_get_input_scene(), DEG_get_input_view_layer(), DEG_get_mode(), depsgraph, Base::flag, MEM_callocN(), Base::next, and Base::object.

Referenced by blender::deg::build_collision_relations().

◆ BKE_collision_relations_free()

void BKE_collision_relations_free ( struct ListBase * relations )

Definition at line 1273 of file collision.cc.

References BLI_freelistN(), and MEM_freeN().

Referenced by blender::deg::clear_physics_relations().

◆ bvhtree_build_from_mvert()

struct BVHTree * bvhtree_build_from_mvert	(	const float(*)	positions[3],
		const blender::int3 *	vert_tris,
		int	tri_num,
		float	epsilon )

Definition at line 89 of file collision.cc.

References BLI_bvhtree_balance(), BLI_bvhtree_insert(), BLI_bvhtree_new(), copy_v3_v3(), i, and tree.

Referenced by deform_verts().

◆ bvhtree_update_from_mvert()

void bvhtree_update_from_mvert	(	struct BVHTree *	bvhtree,
		const float(*)	positions[3],
		const float(*)	positions_moving[3],
		const blender::int3 *	vert_tris,
		int	tri_num,
		bool	moving )

Definition at line 113 of file collision.cc.

References BLI_bvhtree_update_node(), BLI_bvhtree_update_tree(), copy_v3_v3(), i, and ret.

Referenced by collision_move_object(), and deform_verts().

◆ collision_get_collider_velocity()

void collision_get_collider_velocity	(	float	vel_old[3],
		float	vel_new[3],
		struct CollisionModifierData *	collmd,
		struct CollPair *	collpair )

Definition at line 1720 of file collision.cc.

References CollPair::bp1, CollPair::bp2, CollPair::bp3, collision_compute_barycentric(), collision_interpolateOnTriangle(), copy_v3_v3(), CollisionModifierData::current_v, CollisionModifierData::current_x, and CollPair::pb.

◆ collision_move_object()

void collision_move_object	(	struct CollisionModifierData *	collmd,
		float	step,
		float	prevstep,
		bool	moving_bvh )

Move Collision modifier object inter-frame with step = [0,1]

Parameters

step	is limited from 0 (frame start position) to 1 (frame end position).

Definition at line 59 of file collision.cc.

References CollisionModifierData::bvhtree, bvhtree_update_from_mvert(), CollisionModifierData::current_v, CollisionModifierData::current_x, CollisionModifierData::current_xnew, i, interp_v3_v3v3(), CollisionModifierData::is_static, CollisionModifierData::mvert_num, step, sub_v3_v3v3(), CollisionModifierData::tri_num, CollisionModifierData::vert_tris, CollisionModifierData::x, CollisionModifierData::xnew, and zero_v3().

Referenced by BKE_collider_cache_create(), blender::ed::sculpt_paint::cloth::cloth_brush_collider_cache_create(), and cloth_bvh_collision().

Classes

Functions

Collision Data Types

Collision Relations

Collision Cache