Lukas Tönne
30c9fe19a3
updates.
This file crashes on loading with NULL pointer access to curve_cache:
{F77132}
The pdInitEffectors function was amalgamating the simple
collection of effector objects with an automatic precalculation for
curve guides and the like. This precalculation requires object data
that may not be available until the DAG has finished.
Since for DAG dependencies only the list of effectors is required,
added an argument to disable precalculation when collecting effectors.
142 lines
4.4 KiB
C++
142 lines
4.4 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) 2001-2002 by NaN Holding BV.
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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): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BKE_EFFECT_H__
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#define __BKE_EFFECT_H__
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/** \file BKE_effect.h
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* \ingroup bke
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* \since March 2001
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* \author nzc
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*/
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#include "DNA_modifier_types.h"
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struct Object;
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struct Scene;
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struct Effect;
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struct ListBase;
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struct Particle;
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struct Group;
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struct RNG;
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struct ParticleSimulationData;
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struct ParticleData;
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struct ParticleKey;
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struct EffectorWeights *BKE_add_effector_weights(struct Group *group);
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struct PartDeflect *object_add_collision_fields(int type);
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/* Input to effector code */
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typedef struct EffectedPoint {
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float *loc;
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float *vel;
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float *ave; /* angular velocity for particles with dynamic rotation */
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float *rot; /* rotation quaternion for particles with dynamic rotation */
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float vel_to_frame;
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float vel_to_sec;
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/* only for particles */
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float size, charge;
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unsigned int flag;
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int index;
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struct ParticleSystem *psys; /* particle system the point belongs to */
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} EffectedPoint;
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typedef struct GuideEffectorData {
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float vec_to_point[3];
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float strength;
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} GuideEffectorData;
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typedef struct EffectorData {
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/* Effector point */
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float loc[3];
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float nor[3];
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float vel[3];
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float vec_to_point[3];
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float distance, falloff;
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/* only for effector particles */
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float size, charge;
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/* only for vortex effector with surface falloff */
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float nor2[3], vec_to_point2[3];
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int *index; /* point index */
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} EffectorData;
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/* used for calculating the effector force */
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typedef struct EffectorCache {
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struct EffectorCache *next, *prev;
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struct Scene *scene;
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struct Object *ob;
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struct ParticleSystem *psys;
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struct SurfaceModifierData *surmd;
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struct PartDeflect *pd;
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/* precalculated for guides */
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struct GuideEffectorData *guide_data;
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float guide_loc[4], guide_dir[3], guide_radius;
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float velocity[3];
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float frame;
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int flag;
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} EffectorCache;
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void free_partdeflect(struct PartDeflect *pd);
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struct ListBase *pdInitEffectors(struct Scene *scene, struct Object *ob_src, struct ParticleSystem *psys_src, struct EffectorWeights *weights, bool precalc);
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void pdEndEffectors(struct ListBase **effectors);
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void pdPrecalculateEffectors(struct ListBase *effectors);
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void pdDoEffectors(struct ListBase *effectors, struct ListBase *colliders, struct EffectorWeights *weights, struct EffectedPoint *point, float *force, float *impulse);
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void pd_point_from_particle(struct ParticleSimulationData *sim, struct ParticleData *pa, struct ParticleKey *state, struct EffectedPoint *point);
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void pd_point_from_loc(struct Scene *scene, float *loc, float *vel, int index, struct EffectedPoint *point);
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void pd_point_from_soft(struct Scene *scene, float *loc, float *vel, int index, struct EffectedPoint *point);
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/* needed for boids */
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float effector_falloff(struct EffectorCache *eff, struct EffectorData *efd, struct EffectedPoint *point, struct EffectorWeights *weights);
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int closest_point_on_surface(SurfaceModifierData *surmd, const float co[3], float surface_co[3], float surface_nor[3], float surface_vel[3]);
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int get_effector_data(struct EffectorCache *eff, struct EffectorData *efd, struct EffectedPoint *point, int real_velocity);
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/* required for particle_system.c */
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//void do_physical_effector(struct EffectorData *eff, struct EffectorPoint *point, float *total_force);
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//float effector_falloff(struct EffectorData *eff, struct EffectorPoint *point, struct EffectorWeights *weights);
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/* EffectedPoint->flag */
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#define PE_WIND_AS_SPEED 1
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#define PE_DYNAMIC_ROTATION 2
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#define PE_USE_NORMAL_DATA 4
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/* EffectorData->flag */
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#define PE_VELOCITY_TO_IMPULSE 1
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#endif
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