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Diffstat (limited to 'source/blender/makesdna/DNA_cloth_types.h')
| -rw-r--r-- | source/blender/makesdna/DNA_cloth_types.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/source/blender/makesdna/DNA_cloth_types.h b/source/blender/makesdna/DNA_cloth_types.h new file mode 100644 index 00000000000..c99dc44cd5e --- /dev/null +++ b/source/blender/makesdna/DNA_cloth_types.h @@ -0,0 +1,95 @@ +/** +* $Id: DNA_cloth_types.h,v 1.1 2007/08/01 02:28:34 daniel Exp $ +* +* ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 + +/** +* 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; + 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 presets; /* used for presets on GUI */ + short pad; + int pad2; +} 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 */ + 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. */ +} ClothCollSettings; + + +#endif |