Sybren A. Stüvel
98a0bcd425
To prevent the pointcache from being copied-on-write too (and requiring copying back), the cache is now shared between the original and evaluated scenes. Reading from the cache is always allowed; running the sim and writing to the cache is only allowed when the depsgraph is active. Some pointers have moved from RigidBodyWorld (RBO) to RigidBodyWorldShared (RBOS). writefile.c copies some pointers back from RBOS to RBO so that the file can still be opened on older Blenders without crashing on a segfault. The RigidBodyWorldShared struct is written to the blend file, because it refers to the PointCache ID block. The RigidObjectShared struct is runtime-only, and thus not saved to the blend file. An RNA getter-function is used to hide the new 'shared' pointer. As a result the Python API hasn't changed. Reviewed by: campbellbarton Differential Revision: https://developer.blender.org/D3508
120 lines
4.8 KiB
C++
120 lines
4.8 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2013 Blender Foundation
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Joshua Leung, Sergej Reich
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file BKE_rigidbody.h
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* \ingroup blenkernel
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* \brief API for Blender-side Rigid Body stuff
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*/
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#ifndef __BKE_RIGIDBODY_H__
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#define __BKE_RIGIDBODY_H__
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struct RigidBodyWorld;
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struct RigidBodyOb;
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struct Depsgraph;
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struct Scene;
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struct Object;
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/* -------------- */
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/* Memory Management */
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void BKE_rigidbody_free_world(struct Scene *scene);
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void BKE_rigidbody_free_object(struct Object *ob, struct RigidBodyWorld *rbw);
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void BKE_rigidbody_free_constraint(struct Object *ob);
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/* ...... */
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struct RigidBodyOb *BKE_rigidbody_copy_object(const struct Object *ob, const int flag);
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struct RigidBodyCon *BKE_rigidbody_copy_constraint(const struct Object *ob, const int flag);
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/* Callback format for performing operations on ID-pointers for rigidbody world. */
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typedef void (*RigidbodyWorldIDFunc)(struct RigidBodyWorld *rbw, struct ID **idpoin, void *userdata, int cb_flag);
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void BKE_rigidbody_world_id_loop(struct RigidBodyWorld *rbw, RigidbodyWorldIDFunc func, void *userdata);
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/* -------------- */
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/* Setup */
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/* create Blender-side settings data - physics objects not initialized yet */
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struct RigidBodyWorld *BKE_rigidbody_create_world(struct Scene *scene);
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struct RigidBodyOb *BKE_rigidbody_create_object(struct Scene *scene, struct Object *ob, short type);
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struct RigidBodyCon *BKE_rigidbody_create_constraint(struct Scene *scene, struct Object *ob, short type);
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/* copy */
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struct RigidBodyWorld *BKE_rigidbody_world_copy(struct RigidBodyWorld *rbw, const int flag);
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void BKE_rigidbody_world_groups_relink(struct RigidBodyWorld *rbw);
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/* 'validate' (i.e. make new or replace old) Physics-Engine objects */
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void BKE_rigidbody_validate_sim_world(struct Scene *scene, struct RigidBodyWorld *rbw, bool rebuild);
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void BKE_rigidbody_calc_volume(struct Object *ob, float *r_vol);
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void BKE_rigidbody_calc_center_of_mass(struct Object *ob, float r_center[3]);
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/* -------------- */
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/* Utilities */
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struct RigidBodyWorld *BKE_rigidbody_get_world(struct Scene *scene);
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void BKE_rigidbody_remove_object(struct Main *bmain, struct Scene *scene, struct Object *ob);
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void BKE_rigidbody_remove_constraint(struct Scene *scene, struct Object *ob);
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/* -------------- */
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/* Utility Macros */
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/* get mass of Rigid Body Object to supply to RigidBody simulators */
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#define RBO_GET_MASS(rbo) \
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((rbo && ((rbo->type == RBO_TYPE_PASSIVE) || (rbo->flag & RBO_FLAG_KINEMATIC) || (rbo->flag & RBO_FLAG_DISABLED))) ? (0.0f) : (rbo->mass))
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/* get collision margin for Rigid Body Object, triangle mesh and cone shapes cannot embed margin, convex hull always uses custom margin */
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#define RBO_GET_MARGIN(rbo) \
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((rbo->flag & RBO_FLAG_USE_MARGIN || rbo->shape == RB_SHAPE_CONVEXH || rbo->shape == RB_SHAPE_TRIMESH || rbo->shape == RB_SHAPE_CONE) ? (rbo->margin) : (0.04f))
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/* -------------- */
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/* Simulation */
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void BKE_rigidbody_aftertrans_update(struct Object *ob, float loc[3], float rot[3], float quat[4], float rotAxis[3], float rotAngle);
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void BKE_rigidbody_sync_transforms(struct RigidBodyWorld *rbw, struct Object *ob, float ctime);
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bool BKE_rigidbody_check_sim_running(struct RigidBodyWorld *rbw, float ctime);
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void BKE_rigidbody_cache_reset(struct RigidBodyWorld *rbw);
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void BKE_rigidbody_rebuild_world(struct Depsgraph *depsgraph, struct Scene *scene, float ctime);
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void BKE_rigidbody_do_simulation(struct Depsgraph *depsgraph, struct Scene *scene, float ctime);
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/* -------------------- */
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/* Depsgraph evaluation */
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void BKE_rigidbody_rebuild_sim(struct Depsgraph *depsgraph,
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struct Scene *scene);
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void BKE_rigidbody_eval_simulation(struct Depsgraph *depsgraph,
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struct Scene *scene);
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void BKE_rigidbody_object_sync_transforms(struct Depsgraph *depsgraph,
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struct Scene *scene,
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struct Object *ob);
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#endif /* __BKE_RIGIDBODY_H__ */
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