[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [54026] trunk/blender: rigidbody: Add generic spring constraint
Sergej Reich
sergej.reich at googlemail.com
Wed Jan 23 06:57:01 CET 2013
Revision: 54026
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=54026
Author: sergof
Date: 2013-01-23 05:57:01 +0000 (Wed, 23 Jan 2013)
Log Message:
-----------
rigidbody: Add generic spring constraint
Behaves like the generic constraint but has optional spring on each axis.
TODO: Add option to set rest length.
Patch by Markus Kasten (markus111), thanks!
Modified Paths:
--------------
trunk/blender/release/scripts/startup/bl_operators/rigidbody.py
trunk/blender/source/blender/blenkernel/intern/rigidbody.c
trunk/blender/source/blender/makesdna/DNA_rigidbody_types.h
trunk/blender/source/blender/makesrna/intern/rna_rigidbody.c
Modified: trunk/blender/release/scripts/startup/bl_operators/rigidbody.py
===================================================================
--- trunk/blender/release/scripts/startup/bl_operators/rigidbody.py 2013-01-23 05:56:56 UTC (rev 54025)
+++ trunk/blender/release/scripts/startup/bl_operators/rigidbody.py 2013-01-23 05:57:01 UTC (rev 54026)
@@ -206,6 +206,7 @@
('SLIDER', "Slider", "Restricts rigid boddy translation to one axis"),
('PISTON', "Piston", "Restricts rigid boddy translation and rotation to one axis"),
('GENERIC', "Generic", "Restricts translation and rotation to specified axes"),
+ ('GENERIC_SPRING', "Generic Spring", "Restricts translation and rotation to specified axes with springs")),
default='FIXED',)
pivot_type = EnumProperty(
Modified: trunk/blender/source/blender/blenkernel/intern/rigidbody.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/rigidbody.c 2013-01-23 05:56:56 UTC (rev 54025)
+++ trunk/blender/source/blender/blenkernel/intern/rigidbody.c 2013-01-23 05:57:01 UTC (rev 54026)
@@ -569,8 +569,26 @@
}
RB_constraint_set_limits_piston(rbc->physics_constraint, lin_lower, lin_upper, ang_lower, ang_upper);
break;
+ case RBC_TYPE_6DOF_SPRING:
+ rbc->physics_constraint = RB_constraint_new_6dof_spring(loc, rot, rb1, rb2);
+
+ RB_constraint_set_spring_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_X, rbc->flag & RBC_FLAG_USE_SPRING_X);
+ RB_constraint_set_stiffness_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_X, rbc->spring_stiffness_x);
+ RB_constraint_set_damping_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_X, rbc->spring_damping_x);
+
+ RB_constraint_set_spring_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Y, rbc->flag & RBC_FLAG_USE_SPRING_Y);
+ RB_constraint_set_stiffness_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Y, rbc->spring_stiffness_y);
+ RB_constraint_set_damping_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Y, rbc->spring_damping_y);
+
+ RB_constraint_set_spring_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Z, rbc->flag & RBC_FLAG_USE_SPRING_Z);
+ RB_constraint_set_stiffness_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Z, rbc->spring_stiffness_z);
+ RB_constraint_set_damping_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Z, rbc->spring_damping_z);
+
+ RB_constraint_set_equilibrium_6dof_spring(rbc->physics_constraint);
+ /* fall through */
case RBC_TYPE_6DOF:
- rbc->physics_constraint = RB_constraint_new_6dof(loc, rot, rb1, rb2);
+ if (rbc->type == RBC_TYPE_6DOF) /* a litte awkward but avoids duplicate code for limits */
+ rbc->physics_constraint = RB_constraint_new_6dof(loc, rot, rb1, rb2);
if (rbc->flag & RBC_FLAG_USE_LIMIT_LIN_X)
RB_constraint_set_limits_6dof(rbc->physics_constraint, RB_LIMIT_LIN_X, rbc->limit_lin_x_lower, rbc->limit_lin_x_upper);
@@ -775,6 +793,13 @@
rbc->limit_ang_z_lower = -M_PI_4;
rbc->limit_ang_z_upper = M_PI_4;
+ rbc->spring_damping_x = 0.5f;
+ rbc->spring_damping_y = 0.5f;
+ rbc->spring_damping_z = 0.5f;
+ rbc->spring_stiffness_x = 10.0f;
+ rbc->spring_stiffness_y = 10.0f;
+ rbc->spring_stiffness_z = 10.0f;
+
/* flag cache as outdated */
BKE_rigidbody_cache_reset(rbw);
Modified: trunk/blender/source/blender/makesdna/DNA_rigidbody_types.h
===================================================================
--- trunk/blender/source/blender/makesdna/DNA_rigidbody_types.h 2013-01-23 05:56:56 UTC (rev 54025)
+++ trunk/blender/source/blender/makesdna/DNA_rigidbody_types.h 2013-01-23 05:57:01 UTC (rev 54026)
@@ -207,6 +207,15 @@
float limit_ang_z_lower; /* lower limit for z axis rotation */
float limit_ang_z_upper; /* upper limit for z axis rotation */
+ /* spring settings */
+ /* RB_TODO document spring properties */
+ float spring_stiffness_x;
+ float spring_stiffness_y;
+ float spring_stiffness_z;
+ float spring_damping_x;
+ float spring_damping_y;
+ float spring_damping_z;
+
/* References to Physics Sim object. Exist at runtime only */
void *physics_constraint; /* Physics object representation (i.e. btTypedConstraint) */
} RigidBodyCon;
@@ -257,6 +266,10 @@
RBC_FLAG_USE_LIMIT_ANG_X = (1<<8),
RBC_FLAG_USE_LIMIT_ANG_Y = (1<<9),
RBC_FLAG_USE_LIMIT_ANG_Z = (1<<10),
+ /* springs */
+ RBC_FLAG_USE_SPRING_X = (1<<11),
+ RBC_FLAG_USE_SPRING_Y = (1<<12),
+ RBC_FLAG_USE_SPRING_Z = (1<<13)
} eRigidBodyCon_Flag;
/* ******************************** */
Modified: trunk/blender/source/blender/makesrna/intern/rna_rigidbody.c
===================================================================
--- trunk/blender/source/blender/makesrna/intern/rna_rigidbody.c 2013-01-23 05:56:56 UTC (rev 54025)
+++ trunk/blender/source/blender/makesrna/intern/rna_rigidbody.c 2013-01-23 05:57:01 UTC (rev 54026)
@@ -67,6 +67,7 @@
{RBC_TYPE_SLIDER, "SLIDER", ICON_FORCE_FORCE, "Slider", "Restricts rigid boddy translation to one axis"},
{RBC_TYPE_PISTON, "PISTON", ICON_FORCE_FORCE, "Piston", "Restricts rigid boddy translation and rotation to one axis"},
{RBC_TYPE_6DOF, "GENERIC", ICON_FORCE_FORCE, "Generic", "Restricts translation and rotation to specified axes"},
+ {RBC_TYPE_6DOF_SPRING, "GENERIC_SPRING", ICON_FORCE_FORCE, "Generic Spring", "Restricts translation and rotation to specified axes with springs"},
{0, NULL, 0, NULL, NULL}};
@@ -381,6 +382,66 @@
RB_constraint_set_solver_iterations(rbc->physics_constraint, value);
}
+static void rna_RigidBodyCon_spring_stiffness_x_set(PointerRNA *ptr, float value)
+{
+ RigidBodyCon *rbc = (RigidBodyCon *)ptr->data;
+
+ rbc->spring_stiffness_x = value;
+
+ if (rbc->physics_constraint && rbc->type == RBC_TYPE_6DOF_SPRING && (rbc->flag & RBC_FLAG_USE_SPRING_X))
+ RB_constraint_set_stiffness_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_X, value);
+}
+
+static void rna_RigidBodyCon_spring_stiffness_y_set(PointerRNA *ptr, float value)
+{
+ RigidBodyCon *rbc = (RigidBodyCon *)ptr->data;
+
+ rbc->spring_stiffness_y = value;
+
+ if (rbc->physics_constraint && rbc->type == RBC_TYPE_6DOF_SPRING && (rbc->flag & RBC_FLAG_USE_SPRING_Y))
+ RB_constraint_set_stiffness_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Y, value);
+}
+
+static void rna_RigidBodyCon_spring_stiffness_z_set(PointerRNA *ptr, float value)
+{
+ RigidBodyCon *rbc = (RigidBodyCon *)ptr->data;
+
+ rbc->spring_stiffness_z = value;
+
+ if (rbc->physics_constraint && rbc->type == RBC_TYPE_6DOF_SPRING && (rbc->flag & RBC_FLAG_USE_SPRING_Z))
+ RB_constraint_set_stiffness_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Z, value);
+}
+
+static void rna_RigidBodyCon_spring_damping_x_set(PointerRNA *ptr, float value)
+{
+ RigidBodyCon *rbc = (RigidBodyCon *)ptr->data;
+
+ rbc->spring_damping_x = value;
+
+ if (rbc->physics_constraint && rbc->type == RBC_TYPE_6DOF_SPRING && (rbc->flag & RBC_FLAG_USE_SPRING_X))
+ RB_constraint_set_damping_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_X, value);
+}
+
+static void rna_RigidBodyCon_spring_damping_y_set(PointerRNA *ptr, float value)
+{
+ RigidBodyCon *rbc = (RigidBodyCon *)ptr->data;
+
+ rbc->spring_damping_y = value;
+
+ if (rbc->physics_constraint && rbc->type == RBC_TYPE_6DOF_SPRING && (rbc->flag & RBC_FLAG_USE_SPRING_Y))
+ RB_constraint_set_damping_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Y, value);
+}
+
+static void rna_RigidBodyCon_spring_damping_z_set(PointerRNA *ptr, float value)
+{
+ RigidBodyCon *rbc = (RigidBodyCon *)ptr->data;
+
+ rbc->spring_damping_z = value;
+
+ if (rbc->physics_constraint && rbc->type == RBC_TYPE_6DOF_SPRING && (rbc->flag & RBC_FLAG_USE_SPRING_Z))
+ RB_constraint_set_damping_6dof_spring(rbc->physics_constraint, RB_LIMIT_LIN_Z, value);
+}
+
#else
static void rna_def_rigidbody_world(BlenderRNA *brna)
@@ -710,6 +771,21 @@
RNA_def_property_ui_text(prop, "Z Angle", "Limits rotation around z axis");
RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_RigidBodyOb_reset");
+ prop = RNA_def_property(srna, "use_spring_x", PROP_BOOLEAN, PROP_NONE);
+ RNA_def_property_boolean_sdna(prop, NULL, "flag", RBC_FLAG_USE_SPRING_X);
+ RNA_def_property_ui_text(prop, "X Spring", "Enables spring on X axis");
+ RNA_def_property_update(prop, NC_OBJECT, "rna_RigidBodyOb_reset");
+
+ prop = RNA_def_property(srna, "use_spring_y", PROP_BOOLEAN, PROP_NONE);
+ RNA_def_property_boolean_sdna(prop, NULL, "flag", RBC_FLAG_USE_SPRING_Y);
+ RNA_def_property_ui_text(prop, "Y Spring", "Enables spring on Y axis");
+ RNA_def_property_update(prop, NC_OBJECT, "rna_RigidBodyOb_reset");
+
+ prop = RNA_def_property(srna, "use_spring_z", PROP_BOOLEAN, PROP_NONE);
+ RNA_def_property_boolean_sdna(prop, NULL, "flag", RBC_FLAG_USE_SPRING_Z);
+ RNA_def_property_ui_text(prop, "Z Spring", "Enables spring on Z axis");
+ RNA_def_property_update(prop, NC_OBJECT, "rna_RigidBodyOb_reset");
+
prop = RNA_def_property(srna, "limit_lin_x_lower", PROP_FLOAT, PROP_UNIT_LENGTH);
RNA_def_property_float_sdna(prop, NULL, "limit_lin_x_lower");
RNA_def_property_float_default(prop, -1.0f);
@@ -787,6 +863,57 @@
RNA_def_property_float_default(prop, M_PI_4);
RNA_def_property_ui_text(prop, "Upper Z Angle Limit", "Upper limit of z axis rotation");
RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_RigidBodyOb_reset");
+
+ prop = RNA_def_property(srna, "spring_stiffness_x", PROP_FLOAT, PROP_UNIT_LENGTH);
+ RNA_def_property_float_sdna(prop, NULL, "spring_stiffness_x");
+ RNA_def_property_range(prop, 0.0f, FLT_MAX);
+ RNA_def_property_ui_range(prop, 0.0f, 100.0f, 1, 3);
+ RNA_def_property_float_default(prop, 10.0f);
+ RNA_def_property_float_funcs(prop, NULL, "rna_RigidBodyCon_spring_stiffness_x_set", NULL);
+ RNA_def_property_ui_text(prop, "X Axis Stiffness", "Stiffness on the X axis");
+ RNA_def_property_update(prop, NC_OBJECT, "rna_RigidBodyOb_reset");
+
+ prop = RNA_def_property(srna, "spring_stiffness_y", PROP_FLOAT, PROP_UNIT_LENGTH);
+ RNA_def_property_float_sdna(prop, NULL, "spring_stiffness_y");
+ RNA_def_property_range(prop, 0.0f, FLT_MAX);
+ RNA_def_property_ui_range(prop, 0.0f, 100.0f, 1, 3);
+ RNA_def_property_float_default(prop, 10.0f);
+ RNA_def_property_float_funcs(prop, NULL, "rna_RigidBodyCon_spring_stiffness_y_set", NULL);
+ RNA_def_property_ui_text(prop, "Y Axis Stiffness", "Stiffness on the Y axis");
@@ Diff output truncated at 10240 characters. @@
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