diff options
| -rw-r--r-- | release/scripts/startup/bl_operators/constraint.py | 45 | ||||
| -rw-r--r-- | release/scripts/startup/bl_ui/properties_constraint.py | 12 |
2 files changed, 56 insertions, 1 deletions
diff --git a/release/scripts/startup/bl_operators/constraint.py b/release/scripts/startup/bl_operators/constraint.py index 61b1f7737af..f0318b1d85b 100644 --- a/release/scripts/startup/bl_operators/constraint.py +++ b/release/scripts/startup/bl_operators/constraint.py @@ -69,8 +69,53 @@ class CONSTRAINT_OT_normalize_target_weights(Operator): return {'FINISHED'} + +class CONSTRAINT_OT_disable_keep_transform(Operator): + bl_idname = "constraint.disable_keep_transform" + bl_label = "Disable and Keep Transform" + bl_description = ("Set the influence of this constraint to zero while " + "trying to maintain the object's transformation. Other active " + "constraints can still influence the final transformation") + bl_options = {'UNDO', 'INTERNAL'} + + @classmethod + def poll(cls, context): + constraint = getattr(context, "constraint", None) + return constraint and constraint.influence > 0.0 + + def execute(self, context): + """Disable constraint while maintaining the visual transform.""" + + # This works most of the time, but when there are multiple constraints active + # there could still be one that overrides the visual transform. + # + # Note that executing this operator and then increasing the constraint + # influence may move the object; this happens when the constraint is + # additive rather than replacing the transform entirely. + + # Get the matrix in world space. + is_bone_constraint = context.space_data.context == 'BONE_CONSTRAINT' + if is_bone_constraint: + armature = context.object + bone = context.pose_bone + mat = armature.matrix_world @ bone.matrix + else: + mat = context.object.matrix_world + + context.constraint.influence = 0.0 + + # Set the matrix. + if is_bone_constraint: + bone.matrix = armature.matrix_world.inverted() @ mat + else: + context.object.matrix_world = mat + + return {'FINISHED'} + + classes = ( CONSTRAINT_OT_add_target, CONSTRAINT_OT_remove_target, CONSTRAINT_OT_normalize_target_weights, + CONSTRAINT_OT_disable_keep_transform, ) diff --git a/release/scripts/startup/bl_ui/properties_constraint.py b/release/scripts/startup/bl_ui/properties_constraint.py index f5b36d6cfd0..310d35c6179 100644 --- a/release/scripts/startup/bl_ui/properties_constraint.py +++ b/release/scripts/startup/bl_ui/properties_constraint.py @@ -34,8 +34,18 @@ class ConstraintButtonsPanel: # match enum type to our functions, avoids a lookup table. getattr(self, con.type)(context, box, con) - if con.type not in {'RIGID_BODY_JOINT', 'NULL'}: + if con.type in {'RIGID_BODY_JOINT', 'NULL'}: + return + + if con.type in {'IK', 'SPLINE_IK'}: + # constraint.disable_keep_transform doesn't work well + # for these constraints. box.prop(con, "influence") + else: + row = box.row(align=True) + row.prop(con, "influence") + row.operator("constraint.disable_keep_transform", + text='', icon='CANCEL') @staticmethod def space_template(layout, con, target=True, owner=True): |