diff options
Diffstat (limited to 'release/scripts/startup/bl_operators/rigidbody.py')
| -rw-r--r-- | release/scripts/startup/bl_operators/rigidbody.py | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/release/scripts/startup/bl_operators/rigidbody.py b/release/scripts/startup/bl_operators/rigidbody.py new file mode 100644 index 00000000000..bad86163932 --- /dev/null +++ b/release/scripts/startup/bl_operators/rigidbody.py @@ -0,0 +1,251 @@ +# ##### 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. +# +# ##### END GPL LICENSE BLOCK ##### + +# <pep8-80 compliant> + +import bpy +from bpy.types import Operator +from bpy.props import IntProperty +from bpy.props import EnumProperty + + +class CopyRigidbodySettings(Operator): + '''Copy Rigid Body settings from active object to selected''' + bl_idname = "rigidbody.object_settings_copy" + bl_label = "Copy Rigidbody Settings" + bl_options = {'REGISTER', 'UNDO'} + + @classmethod + def poll(cls, context): + obj = context.object + return (obj and obj.rigid_body) + + def execute(self, context): + obj = context.object + scn = context.scene + + # deselect all but mesh objects + for o in context.selected_objects: + if o.type != 'MESH': + o.select = False + + sel = context.selected_objects + if sel: + # add selected objects to active one groups and recalculate + bpy.ops.group.objects_add_active() + scn.frame_set(scn.frame_current) + + # copy settings + for o in sel: + if o.rigid_body is None: + continue + + o.rigid_body.type = obj.rigid_body.type + o.rigid_body.kinematic = obj.rigid_body.kinematic + o.rigid_body.mass = obj.rigid_body.mass + o.rigid_body.collision_shape = obj.rigid_body.collision_shape + o.rigid_body.use_margin = obj.rigid_body.use_margin + o.rigid_body.collision_margin = obj.rigid_body.collision_margin + o.rigid_body.friction = obj.rigid_body.friction + o.rigid_body.restitution = obj.rigid_body.restitution + o.rigid_body.use_deactivation = obj.rigid_body.use_deactivation + o.rigid_body.start_deactivated = obj.rigid_body.start_deactivated + o.rigid_body.deactivate_linear_velocity = obj.rigid_body.deactivate_linear_velocity + o.rigid_body.deactivate_angular_velocity = obj.rigid_body.deactivate_angular_velocity + o.rigid_body.linear_damping = obj.rigid_body.linear_damping + o.rigid_body.angular_damping = obj.rigid_body.angular_damping + o.rigid_body.collision_groups = obj.rigid_body.collision_groups + + return {'FINISHED'} + + +class BakeToKeyframes(Operator): + '''Bake rigid body transformations of selected objects to keyframes''' + bl_idname = "rigidbody.bake_to_keyframes" + bl_label = "Bake To Keyframes" + bl_options = {'REGISTER', 'UNDO'} + + frame_start = IntProperty( + name="Start Frame", + description="Start frame for baking", + min=0, max=300000, + default=1, + ) + frame_end = IntProperty( + name="End Frame", + description="End frame for baking", + min=1, max=300000, + default=250, + ) + step = IntProperty( + name="Frame Step", + description="Frame Step", + min=1, max=120, + default=1, + ) + + @classmethod + def poll(cls, context): + obj = context.object + return (obj and obj.rigid_body) + + def execute(self, context): + bake = [] + objs = [] + scene = context.scene + frame_orig = scene.frame_current + frames = list(range(self.frame_start, self.frame_end + 1, self.step)) + + # filter objects selection + for obj in context.selected_objects: + if not obj.rigid_body or obj.rigid_body.type != 'ACTIVE': + obj.select = False + + objs = context.selected_objects + + if objs: + # store transformation data + for f in list(range(self.frame_start, self.frame_end + 1)): + scene.frame_set(f) + if f in frames: + mat = {} + for i, obj in enumerate(objs): + mat[i] = obj.matrix_world.copy() + bake.append(mat) + + # apply transformations as keyframes + for i, f in enumerate(frames): + scene.frame_set(f) + obj_prev = objs[0] + for j, obj in enumerate(objs): + mat = bake[i][j] + + obj.location = mat.to_translation() + + rot_mode = obj.rotation_mode + if rot_mode == 'QUATERNION': + obj.rotation_quaternion = mat.to_quaternion() + elif rot_mode == 'AXIS_ANGLE': + # this is a little roundabout but there's no better way right now + aa = mat.to_quaternion().to_axis_angle() + obj.rotation_axis_angle = (aa[1], ) + aa[0][:] + else: # euler + # make sure euler rotation is compatible to previous frame + obj.rotation_euler = mat.to_euler(rot_mode, obj_prev.rotation_euler) + + obj_prev = obj + + bpy.ops.anim.keyframe_insert(type='BUILTIN_KSI_LocRot', confirm_success=False) + + # remove baked objects from simulation + bpy.ops.rigidbody.objects_remove() + + # clean up keyframes + for obj in objs: + action = obj.animation_data.action + for fcu in action.fcurves: + keyframe_points = fcu.keyframe_points + i = 1 + # remove unneeded keyframes + while i < len(keyframe_points) - 1: + val_prev = keyframe_points[i - 1].co[1] + val_next = keyframe_points[i + 1].co[1] + val = keyframe_points[i].co[1] + + if abs(val - val_prev) + abs(val - val_next) < 0.0001: + keyframe_points.remove(keyframe_points[i]) + else: + i += 1 + # use linear interpolation for better visual results + for keyframe in keyframe_points: + keyframe.interpolation = 'LINEAR' + + # return to the frame we started on + scene.frame_set(frame_orig) + + return {'FINISHED'} + + def invoke(self, context, event): + scene = context.scene + self.frame_start = scene.frame_start + self.frame_end = scene.frame_end + + wm = context.window_manager + return wm.invoke_props_dialog(self) + + +class ConnectRigidBodies(Operator): + + + '''Connect selected rigid bodies to active''' + bl_idname = "rigidbody.connect" + bl_label = "ConnectRigidBodies" + bl_options = {'REGISTER', 'UNDO'} + + con_type = EnumProperty( + name="Type", + description="Type of generated contraint", + items=(('FIXED', "Fixed", "Glues ridig bodies together"), + ('POINT', "Point", "Constrains rigid bodies to move aound common pivot point"), + ('HINGE', "Hinge", "Restricts rigid body rotation to one axis"), + ('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( + name="Location", + description="Constraint pivot location", + items=(('CENTER', "Center", "Pivot location is between the constrained rigid bodies"), + ('ACTIVE', "Active", "Pivot location is at the active object position"), + ('SELECTED', "Selected", "Pivot location is at the slected object position")), + default='CENTER',) + + @classmethod + def poll(cls, context): + obj = context.object + objs = context.selected_objects + return (obj and obj.rigid_body and (len(objs) > 1)) + + def execute(self, context): + + objs = context.selected_objects + obj_act = context.active_object + + for obj in objs: + if obj == obj_act: + continue + if self.pivot_type == 'ACTIVE': + loc = obj_act.location + elif self.pivot_type == 'SELECTED': + loc = obj.location + else: + loc = (obj_act.location + obj.location) / 2.0 + bpy.ops.object.add(type='EMPTY', view_align=False, enter_editmode=False, location=loc) + bpy.ops.rigidbody.constraint_add() + con = context.active_object.rigid_body_constraint + con.type = self.con_type + con.object1 = obj_act + con.object2 = obj + + return {'FINISHED'} + + def invoke(self, context, event): + wm = context.window_manager + return wm.invoke_props_dialog(self) |