108 lines
4.2 KiB
C
108 lines
4.2 KiB
C
/*
|
|
* $Id$
|
|
*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2006 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): Daniel (Genscher)
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
#ifndef DNA_CLOTH_TYPES_H
|
|
#define DNA_CLOTH_TYPES_H
|
|
|
|
/** \file DNA_cloth_types.h
|
|
* \ingroup DNA
|
|
*/
|
|
|
|
/**
|
|
* This struct contains all the global data required to run a simulation.
|
|
* At the time of this writing, this structure contains data appropriate
|
|
* to run a simulation as described in Deformation Constraints in a
|
|
* Mass-Spring Model to Describe Rigid Cloth Behavior by Xavier Provot.
|
|
*
|
|
* I've tried to keep similar, if not exact names for the variables as
|
|
* are presented in the paper. Where I've changed the concept slightly,
|
|
* as in stepsPerFrame comapred to the time step in the paper, I've used
|
|
* variables with different names to minimize confusion.
|
|
**/
|
|
|
|
typedef struct ClothSimSettings
|
|
{
|
|
struct LinkNode *cache; /* UNUSED atm */
|
|
float mingoal; /* see SB */
|
|
float Cdis; /* Mechanical damping of springs. */
|
|
float Cvi; /* Viscous/fluid damping. */
|
|
float gravity[3]; /* Gravity/external force vector. */
|
|
float dt; /* This is the duration of our time step, computed. */
|
|
float mass; /* The mass of the entire cloth. */
|
|
float structural; /* Structural spring stiffness. */
|
|
float shear; /* Shear spring stiffness. */
|
|
float bending; /* Flexion spring stiffness. */
|
|
float max_bend; /* max bending scaling value, min is "bending" */
|
|
float max_struct; /* max structural scaling value, min is "structural" */
|
|
float max_shear; /* max shear scaling value, UNUSED */
|
|
float avg_spring_len; /* used for normalized springs */
|
|
float timescale; /* parameter how fast cloth runs */
|
|
float maxgoal; /* see SB */
|
|
float eff_force_scale;/* Scaling of effector forces (see softbody_calc_forces).*/
|
|
float eff_wind_scale; /* Scaling of effector wind (see softbody_calc_forces). */
|
|
float sim_time_old;
|
|
float defgoal;
|
|
float goalspring;
|
|
float goalfrict;
|
|
float velocity_smooth; /* smoothing of velocities for hair */
|
|
float collider_friction; /* friction with colliders */
|
|
|
|
int stepsPerFrame; /* Number of time steps per frame. */
|
|
int flags; /* flags, see CSIMSETT_FLAGS enum above. */
|
|
int preroll; /* How many frames of simulation to do before we start. */
|
|
int maxspringlen; /* in percent!; if tearing enabled, a spring will get cut */
|
|
short solver_type; /* which solver should be used? txold */
|
|
short vgroup_bend; /* vertex group for scaling bending stiffness */
|
|
short vgroup_mass; /* optional vertexgroup name for assigning weight.*/
|
|
short vgroup_struct; /* vertex group for scaling structural stiffness */
|
|
short shapekey_rest; /* vertex group for scaling structural stiffness */
|
|
short presets; /* used for presets on GUI */
|
|
short reset;
|
|
short pad[3];
|
|
|
|
struct EffectorWeights *effector_weights;
|
|
} ClothSimSettings;
|
|
|
|
|
|
typedef struct ClothCollSettings
|
|
{
|
|
struct LinkNode *collision_list; /* e.g. pointer to temp memory for collisions */
|
|
float epsilon; /* min distance for collisions. */
|
|
float self_friction; /* Fiction/damping with self contact. */
|
|
float friction; /* Friction/damping applied on contact with other object.*/
|
|
float selfepsilon; /* for selfcollision */
|
|
float repel_force, distance_repel;
|
|
int flags; /* collision flags defined in BKE_cloth.h */
|
|
short self_loop_count; /* How many iterations for the selfcollision loop */
|
|
short loop_count; /* How many iterations for the collision loop. */
|
|
struct Group *group; /* Only use colliders from this group of objects */
|
|
} ClothCollSettings;
|
|
|
|
|
|
#endif
|