Object tracking; initial commit

This commit implements basis stuff needed for object tracking,
use case isn't perfect now, interface also should be cleaned a bit.

- Added list of objects to be tracked. Default there's only one object called
  "Camera" which is used for solving camera motion. Other objects can be added
  and each of them will have it;s own list of tracks. Only one object can be used
  for camera solving at this moment.
- Added new constraint called "Object Tracking" which makes oriented object be
  moving in the save way as solved object motion.
- Scene orientation tools can be used for orienting object to bundles.
- All tools which works with list of tracks or reconstruction data now
  gets that lists from active editing object.
- All objects and their tracking data are available via python api.

26 files changed, 1374 insertions, 339 deletions

diff --git a/source/blender/blenkernel/BKE_tracking.h b/source/blender/blenkernel/BKE_tracking.h
index e55d40ebfe5..6c43493d1d4 100644
--- a/source/blender/blenkernel/BKE_tracking.h
+++ b/source/blender/blenkernel/BKE_tracking.h
@@ -34,11 +34,13 @@
 
 struct bGPDlayer;
 struct ImBuf;
+struct ListBase;
 struct MovieReconstructContext;
 struct MovieTrackingTrack;
 struct MovieTrackingMarker;
 struct MovieTracking;
 struct MovieTrackingContext;
+struct MovieTrackingObject;
 struct MovieClipUser;
 struct MovieDistortion;
 struct Camera;
@@ -49,8 +51,8 @@ void BKE_tracking_init_settings(struct MovieTracking *tracking);
 void BKE_tracking_clamp_track(struct MovieTrackingTrack *track, int event);
 void BKE_tracking_track_flag(struct MovieTrackingTrack *track, int area, int flag, int clear);
 
-struct MovieTrackingTrack *BKE_tracking_add_track(struct MovieTracking *tracking, float x, float y,
-			int framenr, int width, int height);
+struct MovieTrackingTrack *BKE_tracking_add_track(struct MovieTracking *tracking, struct ListBase *tracksbase,
+			float x, float y, int framenr, int width, int height);
 void BKE_tracking_insert_marker(struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker);
 void BKE_tracking_delete_marker(struct MovieTrackingTrack *track, int framenr);
 
@@ -72,16 +74,27 @@ struct ImBuf *BKE_tracking_get_pattern_imbuf(struct ImBuf *ibuf, struct MovieTra
 struct ImBuf *BKE_tracking_get_search_imbuf(struct ImBuf *ibuf, struct MovieTrackingTrack *track,
 			struct MovieTrackingMarker *marker, int margin, int anchored, float pos[2], int origin[2]);
 
-void BKE_track_unique_name(struct MovieTracking *tracking, struct MovieTrackingTrack *track);
+void BKE_track_unique_name(struct ListBase *tracksbase, struct MovieTrackingTrack *track);
 
-struct MovieTrackingTrack *BKE_tracking_named_track(struct MovieTracking *tracking, const char *name);
+struct MovieTrackingTrack *BKE_tracking_named_track(struct MovieTracking *tracking, struct MovieTrackingObject *object, const char *name);
 struct MovieTrackingTrack *BKE_tracking_indexed_track(struct MovieTracking *tracking, int tracknr);
 
 void BKE_tracking_camera_shift(struct MovieTracking *tracking, int winx, int winy, float *shiftx, float *shifty);
 void BKE_tracking_camera_to_blender(struct MovieTracking *tracking, struct Scene *scene, struct Camera *camera, int width, int height);
 
 void BKE_get_tracking_mat(struct Scene *scene, struct Object *ob, float mat[4][4]);
-void BKE_tracking_projection_matrix(struct MovieTracking *tracking, int framenr, int winx, int winy, float mat[4][4]);
+void BKE_tracking_projection_matrix(struct MovieTracking *tracking, struct MovieTrackingObject *object,
+			int framenr, int winx, int winy, float mat[4][4]);
+
+struct ListBase *BKE_tracking_get_tracks(struct MovieTracking *tracking);
+struct MovieTrackingReconstruction *BKE_tracking_get_reconstruction(struct MovieTracking *tracking);
+
+struct MovieTrackingTrack *BKE_tracking_active_track(struct MovieTracking *tracking);
+struct MovieTrackingObject *BKE_tracking_active_object(struct MovieTracking *tracking);
+struct MovieTrackingObject *BKE_tracking_get_camera_object(struct MovieTracking *tracking);
+struct ListBase *BKE_tracking_object_tracks(struct MovieTracking *tracking, struct MovieTrackingObject *object);
+struct MovieTrackingReconstruction *BKE_tracking_object_reconstruction(struct MovieTracking *tracking,
+			struct MovieTrackingObject *object);
 
 /* 2D tracking */
 struct MovieTrackingContext *BKE_tracking_context_new(struct MovieClip *clip, struct MovieClipUser *user,
@@ -92,20 +105,23 @@ void BKE_tracking_sync_user(struct MovieClipUser *user, struct MovieTrackingCont
 int BKE_tracking_next(struct MovieTrackingContext *context);
 
 /* Camera solving */
-int BKE_tracking_can_reconstruct(struct MovieTracking *tracking, char *error_msg, int error_size);
+int BKE_tracking_can_reconstruct(struct MovieTracking *tracking, struct MovieTrackingObject *object,
+			char *error_msg, int error_size);
 
 struct MovieReconstructContext* BKE_tracking_reconstruction_context_new(struct MovieTracking *tracking,
-			int keyframe1, int keyframe2, int width, int height);
+			struct MovieTrackingObject *object, int keyframe1, int keyframe2, int width, int height);
 void BKE_tracking_reconstruction_context_free(struct MovieReconstructContext *context);
 void BKE_tracking_solve_reconstruction(struct MovieReconstructContext *context,
 			short *stop, short *do_update, float *progress, char *stats_message, int message_size);
 int BKE_tracking_finish_reconstruction(struct MovieReconstructContext *context, struct MovieTracking *tracking);
 
-struct MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(struct MovieTracking *tracking, int framenr);
-void BKE_tracking_get_interpolated_camera(struct MovieTracking *tracking, int framenr, float mat[4][4]);
+struct MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(struct MovieTracking *tracking,
+			struct MovieTrackingObject *object, int framenr);
+void BKE_tracking_get_interpolated_camera(struct MovieTracking *tracking,
+			struct MovieTrackingObject *object, int framenr, float mat[4][4]);
 
 /* Feature detection */
-void BKE_tracking_detect_fast(struct MovieTracking *tracking, struct ImBuf *imbuf,
+void BKE_tracking_detect_fast(struct MovieTracking *tracking, struct ListBase *tracksbase, struct ImBuf *imbuf,
 			int framenr, int margin, int min_trackness, int min_distance, struct bGPDlayer *layer,
 			int place_outside_layer);
 
@@ -127,8 +143,14 @@ void BKE_tracking_distortion_destroy(struct MovieDistortion *distortion);
 struct ImBuf *BKE_tracking_undistort(struct MovieTracking *tracking, struct ImBuf *ibuf, int width, int height, float overscan);
 struct ImBuf *BKE_tracking_distort(struct MovieTracking *tracking, struct ImBuf *ibuf, int width, int height, float overscan);
 
+/* Object tracking */
+struct MovieTrackingObject *BKE_tracking_new_object(struct MovieTracking *tracking, const char *name);
+void BKE_tracking_remove_object(struct MovieTracking *tracking, struct MovieTrackingObject *object);
+void BKE_tracking_object_unique_name(struct MovieTracking *tracking, struct MovieTrackingObject *object);
+struct MovieTrackingObject *BKE_tracking_named_object(struct MovieTracking *tracking, const char *name);
+
 /* Select */
-void BKE_tracking_select_track(struct MovieTracking *tracking, struct MovieTrackingTrack *track, int area, int extend);
+void BKE_tracking_select_track(struct ListBase *tracksbase, struct MovieTrackingTrack *track, int area, int extend);
 void BKE_tracking_deselect_track(struct MovieTrackingTrack *track, int area);
 
 #define TRACK_SELECTED(track)				((((track)->flag&TRACK_HIDDEN)==0) && ((track)->flag&SELECT || (track)->pat_flag&SELECT || (track)->search_flag&SELECT))
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c
index 6f29594f811..9d8aae3bb52 100644
--- a/source/blender/blenkernel/intern/constraint.c
+++ b/source/blender/blenkernel/intern/constraint.c
@@ -3953,67 +3953,95 @@ static void followtrack_evaluate (bConstraint *con, bConstraintOb *cob, ListBase
 	Scene *scene= cob->scene;
 	bFollowTrackConstraint *data= con->data;
 	MovieClip *clip= data->clip;
+	MovieTracking *tracking;
 	MovieTrackingTrack *track;
-	
+	MovieTrackingObject *tracking_object;
+
 	if (data->flag & FOLLOWTRACK_ACTIVECLIP)
 		clip= scene->clip;
-	
+
 	if (!clip || !data->track[0])
 		return;
-	
-	track= BKE_tracking_named_track(&clip->tracking, data->track);
-	
+
+	tracking= &clip->tracking;
+
+	if(data->object[0])
+		tracking_object= BKE_tracking_named_object(tracking, data->object);
+	else
+		tracking_object= BKE_tracking_get_camera_object(tracking);
+
+	if(!tracking_object)
+		return;
+
+	track= BKE_tracking_named_track(tracking, tracking_object, data->track);
+
 	if (!track)
 		return;
-	
+
 	if (data->flag & FOLLOWTRACK_USE_3D_POSITION) {
 		if (track->flag & TRACK_HAS_BUNDLE) {
-			float pos[3], mat[4][4], obmat[4][4];
-			
-			copy_m4_m4(obmat, cob->matrix);
-			
-			BKE_get_tracking_mat(cob->scene, NULL, mat);
+			MovieTracking *tracking= &clip->tracking;
+			float pos[3], mat[4][4];
+
+			if((tracking_object->flag&TRACKING_OBJECT_CAMERA)==0) {
+				Object *camob= scene->camera;
+				float obmat[4][4], imat[4][4];
+
+				if(!camob)
+					return;
+
+				copy_m4_m4(mat, camob->obmat);
+
+				BKE_tracking_get_interpolated_camera(tracking, tracking_object, scene->r.cfra, obmat);
+
+				invert_m4_m4(imat, obmat);
+				mul_m4_m4m4(mat, imat, mat);
+			}
+			else {
+				BKE_get_tracking_mat(cob->scene, NULL, mat);
+			}
+
 			mul_v3_m4v3(pos, mat, track->bundle_pos);
-			
-			cob->matrix[3][0] += pos[0];
-			cob->matrix[3][1] += pos[1];
-			cob->matrix[3][2] += pos[2];
+
+			cob->matrix[3][0] = pos[0];
+			cob->matrix[3][1] = pos[1];
+			cob->matrix[3][2] = pos[2];
 		}
 	} 
 	else {
-		Object *camob= cob->scene->camera;
-		
+		Object *camob= scene->camera;
+
 		if (camob) {
 			MovieClipUser user;
 			MovieTrackingMarker *marker;
 			float vec[3], disp[3], axis[3], mat[4][4];
 			float aspect= (scene->r.xsch*scene->r.xasp) / (scene->r.ysch*scene->r.yasp);
 			float len, d;
-			
+
 			where_is_object_mat(scene, camob, mat);
-			
+
 			/* camera axis */
 			vec[0]= 0.0f;
 			vec[1]= 0.0f;
 			vec[2]= 1.0f;
 			mul_v3_m4v3(axis, mat, vec);
-			
+
 			/* distance to projection plane */
 			copy_v3_v3(vec, cob->matrix[3]);
 			sub_v3_v3(vec, mat[3]);
 			project_v3_v3v3(disp, vec, axis);
-			
+
 			len= len_v3(disp);
-			
+
 			if (len > FLT_EPSILON) {
 				CameraParams params;
 				float pos[2], rmat[4][4];
-				
+
 				user.framenr= scene->r.cfra;
 				marker= BKE_tracking_get_marker(track, user.framenr);
-				
+
 				add_v2_v2v2(pos, marker->pos, track->offset);
-				
+
 				camera_params_init(&params);
 				camera_params_from_object(&params, camob);
 
@@ -4021,35 +4049,35 @@ static void followtrack_evaluate (bConstraint *con, bConstraintOb *cob, ListBase
 					vec[0]= params.ortho_scale * (pos[0]-0.5f+params.shiftx);
 					vec[1]= params.ortho_scale * (pos[1]-0.5f+params.shifty);
 					vec[2]= -len;
-					
+
 					if (aspect > 1.0f) vec[1] /= aspect;
 					else vec[0] *= aspect;
-					
+
 					mul_v3_m4v3(disp, camob->obmat, vec);
-					
+
 					copy_m4_m4(rmat, camob->obmat);
 					zero_v3(rmat[3]);
 					mul_m4_m4m4(cob->matrix, rmat, cob->matrix);
-					
+
 					copy_v3_v3(cob->matrix[3], disp);
 				}
 				else {
 					d= (len*params.sensor_x) / (2.0f*params.lens);
-					
+
 					vec[0]= d*(2.0f*(pos[0]+params.shiftx)-1.0f);
 					vec[1]= d*(2.0f*(pos[1]+params.shifty)-1.0f);
 					vec[2]= -len;
-					
+
 					if (aspect > 1.0f) vec[1] /= aspect;
 					else vec[0] *= aspect;
-					
+
 					mul_v3_m4v3(disp, camob->obmat, vec);
-					
+
 					/* apply camera rotation so Z-axis would be co-linear */
 					copy_m4_m4(rmat, camob->obmat);
 					zero_v3(rmat[3]);
 					mul_m4_m4m4(cob->matrix, rmat, cob->matrix);
-					
+
 					copy_v3_v3(cob->matrix[3], disp);
 				}
 			}
@@ -4095,16 +4123,19 @@ static void camerasolver_evaluate (bConstraint *con, bConstraintOb *cob, ListBas
 	Scene *scene= cob->scene;
 	bCameraSolverConstraint *data= con->data;
 	MovieClip *clip= data->clip;
-	
+
 	if (data->flag & CAMERASOLVER_ACTIVECLIP)
 		clip= scene->clip;
-	
+
 	if (clip) {
 		float mat[4][4], obmat[4][4];
-		
-		BKE_tracking_get_interpolated_camera(&clip->tracking, scene->r.cfra, mat);
-		
+		MovieTracking *tracking= &clip->tracking;
+		MovieTrackingObject *object= BKE_tracking_get_camera_object(tracking);
+
+		BKE_tracking_get_interpolated_camera(tracking, object, scene->r.cfra, mat);
+
 		copy_m4_m4(obmat, cob->matrix);
+
 		mul_m4_m4m4(cob->matrix, mat, obmat);
 	}
 }
@@ -4125,6 +4156,76 @@ static bConstraintTypeInfo CTI_CAMERASOLVER = {
 	camerasolver_evaluate /* evaluate */
 };
 
+/* ----------- Object Solver ------------- */
+
+static void objectsolver_new_data (void *cdata)
+{
+	bObjectSolverConstraint *data= (bObjectSolverConstraint *)cdata;
+
+	data->clip = NULL;
+	data->flag |= OBJECTSOLVER_ACTIVECLIP;
+}
+
+static void objectsolver_id_looper (bConstraint *con, ConstraintIDFunc func, void *userdata)
+{
+	bObjectSolverConstraint *data= con->data;
+
+	func(con, (ID**)&data->clip, userdata);
+}
+
+static void objectsolver_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *UNUSED(targets))
+{
+	Scene *scene= cob->scene;
+	bObjectSolverConstraint *data= con->data;
+	MovieClip *clip= data->clip;
+
+	if (data->flag & OBJECTSOLVER_ACTIVECLIP)
+		clip= scene->clip;
+
+	if(!scene->camera)
+		return;
+
+	if (clip) {
+		MovieTracking *tracking= &clip->tracking;
+		MovieTrackingObject *object;
+
+		object= BKE_tracking_named_object(tracking, data->object);
+
+		if(object) {
+			float mat[4][4], obmat[4][4], imat[4][4], cammat[4][4], camimat[4][4];
+
+			where_is_object_mat(scene, scene->camera, cammat);
+
+			BKE_tracking_get_interpolated_camera(tracking, object, scene->r.cfra, mat);
+
+			invert_m4_m4(camimat, cammat);
+
+			copy_m4_m4(cammat, scene->camera->obmat);
+			copy_m4_m4(obmat, cob->matrix);
+
+			invert_m4_m4(imat, mat);
+
+			mul_serie_m4(cob->matrix, cammat, imat, camimat, obmat, NULL, NULL, NULL, NULL);
+		}
+	}
+}
+
+static bConstraintTypeInfo CTI_OBJECTSOLVER = {
+	CONSTRAINT_TYPE_OBJECTSOLVER, /* type */
+	sizeof(bObjectSolverConstraint), /* size */
+	"Object Solver", /* name */
+	"bObjectSolverConstraint", /* struct name */
+	NULL, /* free data */
+	NULL, /* relink data */
+	objectsolver_id_looper, /* id looper */
+	NULL, /* copy data */
+	objectsolver_new_data, /* new data */
+	NULL, /* get constraint targets */
+	NULL, /* flush constraint targets */
+	NULL, /* get target matrix */
+	objectsolver_evaluate /* evaluate */
+};
+
 /* ************************* Constraints Type-Info *************************** */
 /* All of the constraints api functions use bConstraintTypeInfo structs to carry out
  * and operations that involve constraint specific code.
@@ -4165,6 +4266,7 @@ static void constraints_init_typeinfo (void)
 	constraintsTypeInfo[25]= &CTI_PIVOT;			/* Pivot Constraint */
 	constraintsTypeInfo[26]= &CTI_FOLLOWTRACK;		/* Follow Track Constraint */
 	constraintsTypeInfo[27]= &CTI_CAMERASOLVER;		/* Camera Solver Constraint */
+	constraintsTypeInfo[28]= &CTI_OBJECTSOLVER;		/* Object Solver Constraint */
 }
 
 /* This function should be used for getting the appropriate type-info when only
diff --git a/source/blender/blenkernel/intern/depsgraph.c b/source/blender/blenkernel/intern/depsgraph.c
index 4eaf49dc679..b0776a0b51b 100644
--- a/source/blender/blenkernel/intern/depsgraph.c
+++ b/source/blender/blenkernel/intern/depsgraph.c
@@ -647,16 +647,21 @@ static void build_dag_object(DagForest *dag, DagNode *scenenode, Scene *scene, O
 			continue;
 
 		/* special case for camera tracking -- it doesn't use targets to define relations */
-		if(ELEM(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER)) {
+		if(ELEM3(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER, CONSTRAINT_TYPE_OBJECTSOLVER)) {
+			int depends_on_camera= 0;
+
 			if(cti->type==CONSTRAINT_TYPE_FOLLOWTRACK) {
 				bFollowTrackConstraint *data= (bFollowTrackConstraint *)con->data;
 
-				if((data->clip || data->flag&FOLLOWTRACK_ACTIVECLIP) && data->track[0]) {
-					if(scene->camera) {
-						node2 = dag_get_node(dag, scene->camera);
-						dag_add_relation(dag, node2, node, DAG_RL_DATA_OB|DAG_RL_OB_OB, cti->name);
-					}
-				}
+				if((data->clip || data->flag&FOLLOWTRACK_ACTIVECLIP) && data->track[0])
+					depends_on_camera= 1;
+			}
+			else if(cti->type==CONSTRAINT_TYPE_OBJECTSOLVER)
+				depends_on_camera= 1;
+
+			if(depends_on_camera && scene->camera) {
+				node2 = dag_get_node(dag, scene->camera);
+				dag_add_relation(dag, node2, node, DAG_RL_DATA_OB|DAG_RL_OB_OB, cti->name);
 			}
 
 			dag_add_relation(dag,scenenode,node,DAG_RL_SCENE, "Scene Relation");
@@ -2160,7 +2165,7 @@ static void dag_object_time_update_flags(Object *ob)
 			
 			if (cti) {
 				/* special case for camera tracking -- it doesn't use targets to define relations */
-				if(ELEM(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER)) {
+				if(ELEM3(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER, CONSTRAINT_TYPE_OBJECTSOLVER)) {
 					ob->recalc |= OB_RECALC_OB;
 				}
 				else if (cti->get_constraint_targets) {
diff --git a/source/blender/blenkernel/intern/movieclip.c b/source/blender/blenkernel/intern/movieclip.c
index 75d8ec584e8..04686e6a897 100644
--- a/source/blender/blenkernel/intern/movieclip.c
+++ b/source/blender/blenkernel/intern/movieclip.c
@@ -813,7 +813,8 @@ void BKE_movieclip_reload(MovieClip *clip)
 
 void BKE_movieclip_update_scopes(MovieClip *clip, MovieClipUser *user, MovieClipScopes *scopes)
 {
-	if(scopes->ok) return;
+	if(scopes->ok)
+		return;
 
 	if(scopes->track_preview) {
 		IMB_freeImBuf(scopes->track_preview);
@@ -824,8 +825,10 @@ void BKE_movieclip_update_scopes(MovieClip *clip, MovieClipUser *user, MovieClip
 	scopes->track= NULL;
 
 	if(clip) {
-		if(clip->tracking.act_track) {
-			MovieTrackingTrack *track= clip->tracking.act_track;
+		MovieTrackingTrack *act_track= BKE_tracking_active_track(&clip->tracking);
+
+		if(act_track) {
+			MovieTrackingTrack *track= act_track;
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, user->framenr);
 
 			if(marker->flag&MARKER_DISABLED) {
diff --git a/source/blender/blenkernel/intern/tracking.c b/source/blender/blenkernel/intern/tracking.c
index 0786abba67d..5d20445b53f 100644
--- a/source/blender/blenkernel/intern/tracking.c
+++ b/source/blender/blenkernel/intern/tracking.c
@@ -54,6 +54,7 @@
 #include "BKE_movieclip.h"
 #include "BKE_object.h"
 #include "BKE_scene.h"
+#include "BKE_main.h"	// XXX: ...
 
 #include "IMB_imbuf_types.h"
 #include "IMB_imbuf.h"
@@ -89,6 +90,8 @@ void BKE_tracking_init_settings(MovieTracking *tracking)
 	tracking->stabilization.locinf= 1.0f;
 	tracking->stabilization.rotinf= 1.0f;
 	tracking->stabilization.maxscale= 2.0f;
+
+	BKE_tracking_new_object(tracking, "Camera");
 }
 
 void BKE_tracking_clamp_track(MovieTrackingTrack *track, int event)
@@ -207,7 +210,7 @@ void BKE_tracking_track_flag(MovieTrackingTrack *track, int area, int flag, int
 	}
 }
 
-MovieTrackingTrack *BKE_tracking_add_track(MovieTracking *tracking, float x, float y,
+MovieTrackingTrack *BKE_tracking_add_track(MovieTracking *tracking, ListBase *tracksbase, float x, float y,
 			int framenr, int width, int height)
 {
 	MovieTrackingTrack *track;
@@ -250,8 +253,8 @@ MovieTrackingTrack *BKE_tracking_add_track(MovieTracking *tracking, float x, flo
 	if(track->tracker == TRACKER_KLT)
 		BKE_tracking_clamp_track(track, CLAMP_PYRAMID_LEVELS);
 
-	BLI_addtail(&tracking->tracks, track);
-	BKE_track_unique_name(tracking, track);
+	BLI_addtail(tracksbase, track);
+	BKE_track_unique_name(tracksbase, track);
 
 	return track;
 }
@@ -523,18 +526,44 @@ void BKE_tracking_join_tracks(MovieTrackingTrack *dst_track, MovieTrackingTrack
 	dst_track->markersnr= tot;
 }
 
-void BKE_tracking_free(MovieTracking *tracking)
+static void tracking_tracks_free(ListBase *tracks)
 {
 	MovieTrackingTrack *track;
 
-	for(track= tracking->tracks.first; track; track= track->next) {
+	for(track= tracks->first; track; track= track->next) {
 		BKE_tracking_free_track(track);
 	}
 
-	BLI_freelistN(&tracking->tracks);
+	BLI_freelistN(tracks);
+}
+
+static void tracking_reconstruction_free(MovieTrackingReconstruction *reconstruction)
+{
+	if(reconstruction->cameras)
+		MEM_freeN(reconstruction->cameras);
+}
+
+static void tracking_object_free(MovieTrackingObject *object)
+{
+	tracking_tracks_free(&object->tracks);
+	tracking_reconstruction_free(&object->reconstruction);
+}
+
+static void tracking_objects_free(ListBase *objects)
+{
+	MovieTrackingObject *object;
+
+	for(object= objects->first; object; object= object->next)
+		tracking_object_free(object);
 
-	if(tracking->reconstruction.cameras)
-		MEM_freeN(tracking->reconstruction.cameras);
+	BLI_freelistN(objects);
+}
+
+void BKE_tracking_free(MovieTracking *tracking)
+{
+	tracking_tracks_free(&tracking->tracks);
+	tracking_reconstruction_free(&tracking->reconstruction);
+	tracking_objects_free(&tracking->objects);
 
 	if(tracking->stabilization.scaleibuf)
 		IMB_freeImBuf(tracking->stabilization.scaleibuf);
@@ -546,6 +575,9 @@ void BKE_tracking_free(MovieTracking *tracking)
 /*********************** tracks map *************************/
 
 typedef struct TracksMap {
+	char object_name[32];
+	int is_camera;
+
 	int num_tracks;
 	int customdata_size;
 
@@ -557,10 +589,13 @@ typedef struct TracksMap {
 	int ptr;
 } TracksMap;
 
-static TracksMap *tracks_map_new(int num_tracks, int customdata_size)
+static TracksMap *tracks_map_new(const char *object_name, int is_camera, int num_tracks, int customdata_size)
 {
 	TracksMap *map= MEM_callocN(sizeof(TracksMap), "TrackingsMap");
 
+	strcpy(map->object_name, object_name);
+	map->is_camera= is_camera;
+
 	map->num_tracks= num_tracks;
 	map->customdata_size= customdata_size;
 
@@ -606,10 +641,24 @@ static void tracks_map_insert(TracksMap *map, MovieTrackingTrack *track, void *c
 static void tracks_map_merge(TracksMap *map, MovieTracking *tracking)
 {
 	MovieTrackingTrack *track;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	ListBase tracks= {NULL, NULL}, new_tracks= {NULL, NULL};
-	ListBase *old_tracks= &tracking->tracks;
+	ListBase *old_tracks;
 	int a;
 
+	if(map->is_camera) {
+		old_tracks= &tracking->tracks;
+	} else {
+		MovieTrackingObject *object= BKE_tracking_named_object(tracking, map->object_name);
+
+		if(!object) {
+			/* object was deleted by user, create new one */
+			object= BKE_tracking_new_object(tracking, map->object_name);
+		}
+
+		old_tracks= &object->tracks;
+	}
+
 	/* duplicate currently operating tracks to temporary list.
 	   this is needed to keep names in unique state and it's faster to change names
 	   of currently operating tracks (if needed) */
@@ -633,7 +682,7 @@ static void tracks_map_merge(TracksMap *map, MovieTracking *tracking)
 
 			/* original track was found, re-use flags and remove this track */
 			if(cur) {
-				if(cur==tracking->act_track)
+				if(act_track)
 					replace_sel= 1;
 
 				track->flag= cur->flag;
@@ -684,7 +733,7 @@ static void tracks_map_merge(TracksMap *map, MovieTracking *tracking)
 		track= next;
 	}
 
-	tracking->tracks= new_tracks;
+	*old_tracks= new_tracks;
 }
 
 static void tracks_map_free(TracksMap *map, void (*customdata_free) (void *customdata))
@@ -744,7 +793,9 @@ MovieTrackingContext *BKE_tracking_context_new(MovieClip *clip, MovieClipUser *u
 	MovieTrackingContext *context= MEM_callocN(sizeof(MovieTrackingContext), "trackingContext");
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingSettings *settings= &tracking->settings;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
 	int num_tracks= 0;
 
 	context->settings= *settings;
@@ -754,7 +805,7 @@ MovieTrackingContext *BKE_tracking_context_new(MovieClip *clip, MovieClipUser *u
 	context->first_time= 1;
 
 	/* count */
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_SELECTED(track) && (track->flag&TRACK_LOCKED)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, user->framenr);
@@ -769,12 +820,13 @@ MovieTrackingContext *BKE_tracking_context_new(MovieClip *clip, MovieClipUser *u
 	if(num_tracks) {
 		int width, height;
 
-		context->tracks_map= tracks_map_new(num_tracks, sizeof(TrackContext));
+		context->tracks_map= tracks_map_new(object->name, object->flag & TRACKING_OBJECT_CAMERA,
+					num_tracks, sizeof(TrackContext));
 
 		BKE_movieclip_get_size(clip, user, &width, &height);
 
 		/* create tracking data */
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(TRACK_SELECTED(track) && (track->flag&TRACK_LOCKED)==0) {
 				MovieTrackingMarker *marker= BKE_tracking_get_marker(track, user->framenr);
@@ -1370,6 +1422,8 @@ typedef struct MovieReconstructContext {
 
 	struct libmv_Reconstruction *reconstruction;
 #endif
+	char object_name[32];
+	int is_camera;
 
 	float focal_length;
 	float principal_point[2];
@@ -1391,13 +1445,13 @@ typedef struct ReconstructProgressData {
 } ReconstructProgressData;
 
 #if WITH_LIBMV
-static struct libmv_Tracks *create_libmv_tracks(MovieTracking *tracking, int width, int height)
+static struct libmv_Tracks *create_libmv_tracks(ListBase *tracksbase, int width, int height)
 {
 	int tracknr= 0;
 	MovieTrackingTrack *track;
 	struct libmv_Tracks *tracks= libmv_tracksNew();
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		int a= 0;
 
@@ -1441,16 +1495,28 @@ static void retrieve_libmv_reconstruct_intrinscis(MovieReconstructContext *conte
 static int retrieve_libmv_reconstruct_tracks(MovieReconstructContext *context, MovieTracking *tracking)
 {
 	struct libmv_Reconstruction *libmv_reconstruction= context->reconstruction;
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
+	MovieTrackingReconstruction *reconstruction= NULL;
 	MovieReconstructedCamera *reconstructed;
 	MovieTrackingTrack *track;
+	ListBase *tracksbase=  NULL;
 	int ok= 1, tracknr= 0, a, origin_set= 0;
 	int sfra= context->sfra, efra= context->efra;
 	float imat[4][4];
 
+	if(context->is_camera) {
+		tracksbase= &tracking->tracks;
+		reconstruction= &tracking->reconstruction;
+	}
+	else {
+		MovieTrackingObject *object= BKE_tracking_named_object(tracking, context->object_name);
+
+		tracksbase= &object->tracks;
+		reconstruction= &object->reconstruction;
+	}
+
 	unit_m4(imat);
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		double pos[3];
 
@@ -1516,7 +1582,7 @@ static int retrieve_libmv_reconstruct_tracks(MovieReconstructContext *context, M
 	}
 
 	if(origin_set) {
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(track->flag&TRACK_HAS_BUNDLE)
 				mul_v3_m4v3(track->bundle_pos, imat, track->bundle_pos);
@@ -1532,8 +1598,6 @@ static int retrieve_libmv_reconstruct_tracks(MovieReconstructContext *context, M
 
 static int retrieve_libmv_reconstruct(MovieReconstructContext *context, MovieTracking *tracking)
 {
-	tracks_map_merge(context->tracks_map, tracking);
-
 	/* take the intrinscis back from libmv */
 	retrieve_libmv_reconstruct_intrinscis(context, tracking);
 
@@ -1560,13 +1624,13 @@ static int get_refine_intrinsics_flags(MovieTracking *tracking)
 	return flags;
 }
 
-static int count_tracks_on_both_keyframes(MovieTracking *tracking)
+static int count_tracks_on_both_keyframes(MovieTracking *tracking, ListBase *tracksbase)
 {
 	int tot= 0;
 	int frame1= tracking->settings.keyframe1, frame2= tracking->settings.keyframe2;
 	MovieTrackingTrack *track;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(BKE_tracking_has_marker(track, frame1))
 			if(BKE_tracking_has_marker(track, frame2))
@@ -1579,10 +1643,12 @@ static int count_tracks_on_both_keyframes(MovieTracking *tracking)
 }
 #endif
 
-int BKE_tracking_can_reconstruct(MovieTracking *tracking, char *error_msg, int error_size)
+int BKE_tracking_can_reconstruct(MovieTracking *tracking, MovieTrackingObject *object, char *error_msg, int error_size)
 {
 #if WITH_LIBMV
-	if(count_tracks_on_both_keyframes(tracking)<8) {
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
+
+	if(count_tracks_on_both_keyframes(tracking, tracksbase)<8) {
 		BLI_strncpy(error_msg, "At least 8 tracks on both of keyframes are needed for reconstruction", error_size);
 		return 0;
 	}
@@ -1597,17 +1663,22 @@ int BKE_tracking_can_reconstruct(MovieTracking *tracking, char *error_msg, int e
 }
 
 MovieReconstructContext* BKE_tracking_reconstruction_context_new(MovieTracking *tracking,
-			int keyframe1, int keyframe2, int width, int height)
+			MovieTrackingObject *object, int keyframe1, int keyframe2, int width, int height)
 {
 	MovieReconstructContext *context= MEM_callocN(sizeof(MovieReconstructContext), "MovieReconstructContext data");
 	MovieTrackingCamera *camera= &tracking->camera;
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
 	float aspy= 1.0f/tracking->camera.pixel_aspect;
-	int num_tracks= BLI_countlist(&tracking->tracks);
+	int num_tracks= BLI_countlist(tracksbase);
 	int sfra= INT_MAX, efra= INT_MIN;
 	MovieTrackingTrack *track;
 
-	context->tracks_map= tracks_map_new(num_tracks, 0);
-	track= tracking->tracks.first;
+	strcpy(context->object_name, object->name);
+	context->is_camera = object->flag&TRACKING_OBJECT_CAMERA;
+
+	context->tracks_map= tracks_map_new(context->object_name, context->is_camera, num_tracks, 0);
+
+	track= tracksbase->first;
 	while(track) {
 		int first= 0, last= track->markersnr;
 		MovieTrackingMarker *first_marker= &track->markers[0];
@@ -1640,7 +1711,7 @@ MovieReconstructContext* BKE_tracking_reconstruction_context_new(MovieTracking *
 	context->efra= efra;
 
 #ifdef WITH_LIBMV
-	context->tracks= create_libmv_tracks(tracking, width, height*aspy);
+	context->tracks= create_libmv_tracks(tracksbase, width, height*aspy);
 	context->keyframe1= keyframe1;
 	context->keyframe2= keyframe2;
 	context->refine_flags= get_refine_intrinsics_flags(tracking);
@@ -1740,8 +1811,22 @@ void BKE_tracking_solve_reconstruction(MovieReconstructContext *context, short *
 
 int BKE_tracking_finish_reconstruction(MovieReconstructContext *context, MovieTracking *tracking)
 {
-	tracking->reconstruction.error= context->reprojection_error;
-	tracking->reconstruction.flag|= TRACKING_RECONSTRUCTED;
+	MovieTrackingReconstruction *reconstruction;
+
+	tracks_map_merge(context->tracks_map, tracking);
+
+	if(context->is_camera) {
+		reconstruction= &tracking->reconstruction;
+	}
+	else {
+		MovieTrackingObject *object;
+
+		object= BKE_tracking_named_object(tracking, context->object_name);
+		reconstruction= &object->reconstruction;
+	}
+
+	reconstruction->error= context->reprojection_error;
+	reconstruction->flag|= TRACKING_RECONSTRUCTED;
 
 #ifdef WITH_LIBMV
 	if(!retrieve_libmv_reconstruct(context, tracking))
@@ -1751,14 +1836,15 @@ int BKE_tracking_finish_reconstruction(MovieReconstructContext *context, MovieTr
 	return 1;
 }
 
-void BKE_track_unique_name(MovieTracking *tracking, MovieTrackingTrack *track)
+void BKE_track_unique_name(ListBase *tracksbase, MovieTrackingTrack *track)
 {
-	BLI_uniquename(&tracking->tracks, track, "Track", '.', offsetof(MovieTrackingTrack, name), sizeof(track->name));
+	BLI_uniquename(tracksbase, track, "Track", '.', offsetof(MovieTrackingTrack, name), sizeof(track->name));
 }
 
-MovieTrackingTrack *BKE_tracking_named_track(MovieTracking *tracking, const char *name)
+MovieTrackingTrack *BKE_tracking_named_track(MovieTracking *tracking, MovieTrackingObject *object, const char *name)
 {
-	MovieTrackingTrack *track= tracking->tracks.first;
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
+	MovieTrackingTrack *track= tracksbase->first;
 
 	while(track) {
 		if(!strcmp(track->name, name))
@@ -1770,9 +1856,8 @@ MovieTrackingTrack *BKE_tracking_named_track(MovieTracking *tracking, const char
 	return NULL;
 }
 
-static int reconstruction_camera_index(MovieTracking *tracking, int framenr, int nearest)
+static int reconstruction_camera_index(MovieTrackingReconstruction *reconstruction, int framenr, int nearest)
 {
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
 	MovieReconstructedCamera *cameras= reconstruction->cameras;
 	int a= 0, d= 1;
 
@@ -1824,21 +1909,31 @@ static int reconstruction_camera_index(MovieTracking *tracking, int framenr, int
 	return -1;
 }
 
-MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(MovieTracking *tracking, int framenr)
+MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(MovieTracking *tracking,
+			MovieTrackingObject *object, int framenr)
 {
-	int a= reconstruction_camera_index(tracking, framenr, 0);
+	MovieTrackingReconstruction *reconstruction;
+	int a;
+
+	reconstruction= BKE_tracking_object_reconstruction(tracking, object);
+	a= reconstruction_camera_index(reconstruction, framenr, 0);
 
 	if(a==-1)
 		return NULL;
 
-	return &tracking->reconstruction.cameras[a];
+	return &reconstruction->cameras[a];
 }
 
-void BKE_tracking_get_interpolated_camera(MovieTracking *tracking, int framenr, float mat[4][4])
+void BKE_tracking_get_interpolated_camera(MovieTracking *tracking, MovieTrackingObject *object,
+			int framenr, float mat[4][4])
 {
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
-	MovieReconstructedCamera *cameras= reconstruction->cameras;
-	int a= reconstruction_camera_index(tracking, framenr, 1);
+	MovieTrackingReconstruction *reconstruction;
+	MovieReconstructedCamera *cameras;
+	int a;
+
+	reconstruction= BKE_tracking_object_reconstruction(tracking, object);
+	cameras= reconstruction->cameras;
+	a= reconstruction_camera_index(reconstruction, framenr, 1);
 
 	if(a==-1) {
 		unit_m4(mat);
@@ -1890,7 +1985,8 @@ void BKE_tracking_camera_to_blender(MovieTracking *tracking, Scene *scene, Camer
 	BKE_tracking_camera_shift(tracking, width, height, &camera->shiftx, &camera->shifty);
 }
 
-void BKE_tracking_projection_matrix(MovieTracking *tracking, int framenr, int winx, int winy, float mat[4][4])
+void BKE_tracking_projection_matrix(MovieTracking *tracking, MovieTrackingObject *object,
+			int framenr, int winx, int winy, float mat[4][4])
 {
 	MovieReconstructedCamera *camera;
 	float lens= tracking->camera.focal*tracking->camera.sensor_width/(float)winx;
@@ -1923,7 +2019,8 @@ void BKE_tracking_projection_matrix(MovieTracking *tracking, int framenr, int wi
 
 	perspective_m4(winmat, left, right, bottom, top, clipsta, clipend);
 
-	camera= BKE_tracking_get_reconstructed_camera(tracking, framenr);
+	camera= BKE_tracking_get_reconstructed_camera(tracking, object, framenr);
+
 	if(camera) {
 		float imat[4][4];
 
@@ -1932,6 +2029,77 @@ void BKE_tracking_projection_matrix(MovieTracking *tracking, int framenr, int wi
 	} else copy_m4_m4(mat, winmat);
 }
 
+ListBase *BKE_tracking_get_tracks(MovieTracking *tracking)
+{
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
+
+	if(object && (object->flag & TRACKING_OBJECT_CAMERA) == 0) {
+		return &object->tracks;
+	}
+
+	return &tracking->tracks;
+}
+
+MovieTrackingTrack *BKE_tracking_active_track(MovieTracking *tracking)
+{
+	ListBase *tracksbase;
+
+	if(!tracking->act_track)
+		return NULL;
+
+	tracksbase= BKE_tracking_get_tracks(tracking);
+
+	/* check that active track is in current tracks list */
+	if(BLI_findindex(tracksbase, tracking->act_track) >= 0)
+		return tracking->act_track;
+
+	return NULL;
+}
+
+MovieTrackingObject *BKE_tracking_active_object(MovieTracking *tracking)
+{
+	return BLI_findlink(&tracking->objects, tracking->objectnr);
+}
+
+MovieTrackingObject *BKE_tracking_get_camera_object(MovieTracking *tracking)
+{
+	MovieTrackingObject *object= tracking->objects.first;
+
+	while(object) {
+		if(object->flag & TRACKING_OBJECT_CAMERA)
+			return object;
+
+		object= object->next;
+	}
+
+	return NULL;
+}
+
+ListBase *BKE_tracking_object_tracks(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	if(object->flag & TRACKING_OBJECT_CAMERA) {
+		return &tracking->tracks;
+	}
+
+	return &object->tracks;
+}
+
+MovieTrackingReconstruction *BKE_tracking_object_reconstruction(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	if(object->flag & TRACKING_OBJECT_CAMERA) {
+		return &tracking->reconstruction;
+	}
+
+	return &object->reconstruction;
+}
+
+MovieTrackingReconstruction *BKE_tracking_get_reconstruction(MovieTracking *tracking)
+{
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
+
+	return BKE_tracking_object_reconstruction(tracking, object);
+}
+
 void BKE_tracking_apply_intrinsics(MovieTracking *tracking, float co[2], float nco[2])
 {
 	MovieTrackingCamera *camera= &tracking->camera;
@@ -2018,8 +2186,9 @@ static int point_in_layer(bGPDlayer *layer, float x, float y)
 	return 0;
 }
 
-static void retrieve_libmv_features(MovieTracking *tracking, struct libmv_Features *features,
-			int framenr, int width, int height, bGPDlayer *layer, int place_outside_layer)
+static void retrieve_libmv_features(MovieTracking *tracking, ListBase *tracksbase,
+			struct libmv_Features *features, int framenr, int width, int height,
+			bGPDlayer *layer, int place_outside_layer)
 {
 	int a;
 
@@ -2039,7 +2208,7 @@ static void retrieve_libmv_features(MovieTracking *tracking, struct libmv_Featur
 			ok= point_in_layer(layer, xu, yu)!=place_outside_layer;
 
 		if(ok) {
-			track= BKE_tracking_add_track(tracking, xu, yu, framenr, width, height);
+			track= BKE_tracking_add_track(tracking, tracksbase, xu, yu, framenr, width, height);
 			track->flag|= SELECT;
 			track->pat_flag|= SELECT;
 			track->search_flag|= SELECT;
@@ -2048,7 +2217,7 @@ static void retrieve_libmv_features(MovieTracking *tracking, struct libmv_Featur
 }
 #endif
 
-void BKE_tracking_detect_fast(MovieTracking *tracking, ImBuf *ibuf,
+void BKE_tracking_detect_fast(MovieTracking *tracking, ListBase *tracksbase, ImBuf *ibuf,
 			int framenr, int margin, int min_trackness, int min_distance, bGPDlayer *layer,
 			int place_outside_layer)
 {
@@ -2056,11 +2225,13 @@ void BKE_tracking_detect_fast(MovieTracking *tracking, ImBuf *ibuf,
 	struct libmv_Features *features;
 	unsigned char *pixels= get_ucharbuf(ibuf);
 
-	features= libmv_detectFeaturesFAST(pixels, ibuf->x, ibuf->y, ibuf->x, margin, min_trackness, min_distance);
+	features= libmv_detectFeaturesFAST(pixels, ibuf->x, ibuf->y, ibuf->x,
+			margin, min_trackness, min_distance);
 
 	MEM_freeN(pixels);
 
-	retrieve_libmv_features(tracking, features, framenr, ibuf->x, ibuf->y, layer, place_outside_layer);
+	retrieve_libmv_features(tracking, tracksbase, features, framenr,
+			ibuf->x, ibuf->y, layer, place_outside_layer);
 
 	libmv_destroyFeatures(features);
 #else
@@ -2077,7 +2248,8 @@ void BKE_tracking_detect_fast(MovieTracking *tracking, ImBuf *ibuf,
 
 MovieTrackingTrack *BKE_tracking_indexed_track(MovieTracking *tracking, int tracknr)
 {
-	MovieTrackingTrack *track= tracking->tracks.first;
+	ListBase *tracksbase= &tracking->tracks;	/* XXX: need proper tracks base */
+	MovieTrackingTrack *track= tracksbase->first;
 	int cur= 1;
 
 	while(track) {
@@ -2102,6 +2274,8 @@ static int stabilization_median_point(MovieTracking *tracking, int framenr, floa
 
 	INIT_MINMAX2(min, max);
 
+	(void) tracking;
+
 	track= tracking->tracks.first;
 	while(track) {
 		if(track->flag&TRACK_USE_2D_STAB) {
@@ -2539,12 +2713,12 @@ ImBuf *BKE_tracking_distort(MovieTracking *tracking, ImBuf *ibuf, int width, int
 }
 
 /* area - which part of marker should be selected. see TRACK_AREA_* constants */
-void BKE_tracking_select_track(MovieTracking *tracking, MovieTrackingTrack *track, int area, int extend)
+void BKE_tracking_select_track(ListBase *tracksbase, MovieTrackingTrack *track, int area, int extend)
 {
 	if(extend) {
 		BKE_tracking_track_flag(track, area, SELECT, 0);
 	} else {
-		MovieTrackingTrack *cur= tracking->tracks.first;
+		MovieTrackingTrack *cur= tracksbase->first;
 
 		while(cur) {
 			if(cur==track) {
@@ -2564,3 +2738,78 @@ void BKE_tracking_deselect_track(MovieTrackingTrack *track, int area)
 {
 	BKE_tracking_track_flag(track, area, SELECT, 1);
 }
+
+MovieTrackingObject *BKE_tracking_new_object(MovieTracking *tracking, const char *name)
+{
+	MovieTrackingObject *object= MEM_callocN(sizeof(MovieTrackingObject), "tracking object");
+
+	if(tracking->tot_object==0) {
+		/* first object is always camera */
+		BLI_strncpy(object->name, "Camera", sizeof(object->name));
+
+		object->flag|= TRACKING_OBJECT_CAMERA;
+	}
+	else {
+		BLI_strncpy(object->name, name, sizeof(object->name));
+	}
+
+	BLI_addtail(&tracking->objects, object);
+
+	tracking->tot_object++;
+	tracking->objectnr= BLI_countlist(&tracking->objects) - 1;
+
+	BKE_tracking_object_unique_name(tracking, object);
+
+	return object;
+}
+
+void BKE_tracking_remove_object(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	MovieTrackingTrack *track;
+	int index= BLI_findindex(&tracking->objects, object);
+
+	if(index<0)
+		return;
+
+	if(object->flag & TRACKING_OBJECT_CAMERA) {
+		/* object used for camera solving can't be deleted */
+		return;
+	}
+
+	track= object->tracks.first;
+	while(track) {
+		if(track==tracking->act_track)
+			tracking->act_track= NULL;
+
+		track= track->next;
+	}
+
+	tracking_object_free(object);
+	BLI_freelinkN(&tracking->objects, object);
+
+	tracking->tot_object--;
+
+	if(index>0)
+		tracking->objectnr= index-1;
+	else
+		tracking->objectnr= 0;
+}
+
+void BKE_tracking_object_unique_name(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	BLI_uniquename(&tracking->objects, object, "Object", '.', offsetof(MovieTrackingObject, name), sizeof(object->name));
+}
+
+MovieTrackingObject *BKE_tracking_named_object(MovieTracking *tracking, const char *name)
+{
+	MovieTrackingObject *object= tracking->objects.first;
+
+	while(object) {
+		if(!strcmp(object->name, name))
+			return object;
+
+		object= object->next;
+	}
+
+	return NULL;
+}
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 13e2ed49e6a..6479c3ee04d 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -5934,10 +5934,29 @@ static void lib_link_group(FileData *fd, Main *main)
 
 /* ***************** READ MOVIECLIP *************** */
 
+static void direct_link_movieReconstruction(FileData *fd, MovieTrackingReconstruction *reconstruction)
+{
+	reconstruction->cameras= newdataadr(fd, reconstruction->cameras);
+}
+
+static void direct_link_movieTracks(FileData *fd, ListBase *tracksbase)
+{
+	MovieTrackingTrack *track;
+
+	link_list(fd, tracksbase);
+
+	track= tracksbase->first;
+	while(track) {
+		track->markers= newdataadr(fd, track->markers);
+
+		track= track->next;
+	}
+}
+
 static void direct_link_movieclip(FileData *fd, MovieClip *clip)
 {
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track;
+	MovieTrackingObject *object;
 
 	if(fd->movieclipmap) clip->cache= newmclipadr(fd, clip->cache);
 	else clip->cache= NULL;
@@ -5945,16 +5964,8 @@ static void direct_link_movieclip(FileData *fd, MovieClip *clip)
 	if(fd->movieclipmap) clip->tracking.camera.intrinsics= newmclipadr(fd, clip->tracking.camera.intrinsics);
 	else clip->tracking.camera.intrinsics= NULL;
 
-	tracking->reconstruction.cameras= newdataadr(fd, tracking->reconstruction.cameras);
-
-	link_list(fd, &tracking->tracks);
-
-	track= tracking->tracks.first;
-	while(track) {
-		track->markers= newdataadr(fd, track->markers);
-
-		track= track->next;
-	}
+	direct_link_movieTracks(fd, &tracking->tracks);
+	direct_link_movieReconstruction(fd, &tracking->reconstruction);
 
 	clip->tracking.act_track= newdataadr(fd, clip->tracking.act_track);
 
@@ -5965,6 +5976,16 @@ static void direct_link_movieclip(FileData *fd, MovieClip *clip)
 	clip->tracking.stabilization.ok= 0;
 	clip->tracking.stabilization.scaleibuf= NULL;
 	clip->tracking.stabilization.rot_track= newdataadr(fd, clip->tracking.stabilization.rot_track);
+
+	link_list(fd, &tracking->objects);
+
+	object= tracking->objects.first;
+	while(object) {
+		direct_link_movieTracks(fd, &object->tracks);
+		direct_link_movieReconstruction(fd, &object->reconstruction);
+
+		object= object->next;
+	}
 }
 
 static void lib_link_movieclip(FileData *fd, Main *main)
@@ -12657,7 +12678,14 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 
 	/* put compatibility code here until next subversion bump */
 	{
-		/* nothing! */
+		MovieClip *clip;
+
+		for (clip= main->movieclip.first; clip; clip= clip->id.next) {
+			MovieTracking *tracking= &clip->tracking;
+
+			if(tracking->objects.first == NULL)
+				BKE_tracking_new_object(tracking, "Camera");
+		}
 	}
 
 	/* WATCH IT!!!: pointers from libdata have not been converted yet here! */
diff --git a/source/blender/blenloader/intern/writefile.c b/source/blender/blenloader/intern/writefile.c
index 00710e67cf2..4828e9703fb 100644
--- a/source/blender/blenloader/intern/writefile.c
+++ b/source/blender/blenloader/intern/writefile.c
@@ -2522,6 +2522,27 @@ static void write_scripts(WriteData *wd, ListBase *idbase)
 	}
 }
 
+static void write_movieTracks(WriteData *wd, ListBase *tracks)
+{
+	MovieTrackingTrack *track;
+
+	track= tracks->first;
+	while(track) {
+		writestruct(wd, DATA, "MovieTrackingTrack", 1, track);
+
+		if(track->markers)
+			writestruct(wd, DATA, "MovieTrackingMarker", track->markersnr, track->markers);
+
+		track= track->next;
+	}
+}
+
+static void write_movieReconstruction(WriteData *wd, MovieTrackingReconstruction *reconstruction)
+{
+	if(reconstruction->camnr)
+		writestruct(wd, DATA, "MovieReconstructedCamera", reconstruction->camnr, reconstruction->cameras);
+}
+
 static void write_movieclips(WriteData *wd, ListBase *idbase)
 {
 	MovieClip *clip;
@@ -2530,20 +2551,20 @@ static void write_movieclips(WriteData *wd, ListBase *idbase)
 	while(clip) {
 		if(clip->id.us>0 || wd->current) {
 			MovieTracking *tracking= &clip->tracking;
-			MovieTrackingTrack *track;
+			MovieTrackingObject *object;
 			writestruct(wd, ID_MC, "MovieClip", 1, clip);
 
-			if(tracking->reconstruction.camnr)
-				writestruct(wd, DATA, "MovieReconstructedCamera", tracking->reconstruction.camnr, tracking->reconstruction.cameras);
+			write_movieTracks(wd, &tracking->tracks);
+			write_movieReconstruction(wd, &tracking->reconstruction);
 
-			track= tracking->tracks.first;
-			while(track) {
-				writestruct(wd, DATA, "MovieTrackingTrack", 1, track);
+			object= tracking->objects.first;
+			while(object) {
+				writestruct(wd, DATA, "MovieTrackingObject", 1, object);
 
-				if(track->markers)
-					writestruct(wd, DATA, "MovieTrackingMarker", track->markersnr, track->markers);
+				write_movieTracks(wd, &object->tracks);
+				write_movieReconstruction(wd, &object->reconstruction);
 
-				track= track->next;
+				object= object->next;
 			}
 		}
 
diff --git a/source/blender/editors/interface/interface_templates.c b/source/blender/editors/interface/interface_templates.c
index 7f01d4f031d..ea45337ddb3 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -2198,6 +2198,17 @@ static void list_item_row(bContext *C, uiLayout *layout, PointerRNA *ptr, Pointe
 		}
 		uiDefButR(block, OPTION, 0, "", 0, 0, UI_UNIT_X, UI_UNIT_Y, itemptr, "is_active", i, 0, 0, 0, 0,  NULL);
 	}
+	else if(itemptr->type == &RNA_MovieTrackingObject) {
+		MovieTrackingObject *tracking_object= (MovieTrackingObject*)itemptr->data;
+
+		split= uiLayoutSplit(sub, 0.75f, 0);
+		if(tracking_object->flag&TRACKING_OBJECT_CAMERA) {
+			uiItemL(split, name, ICON_CAMERA_DATA);
+		}
+		else {
+			uiItemL(split, name, ICON_OBJECT_DATA);
+		}
+	}
 
 	/* There is a last chance to display custom controls (in addition to the name/label):
 	 * If the given item property group features a string property named as prop_list,
diff --git a/source/blender/editors/object/object_constraint.c b/source/blender/editors/object/object_constraint.c
index 2a45a7df735..7b9e809fffc 100644
--- a/source/blender/editors/object/object_constraint.c
+++ b/source/blender/editors/object/object_constraint.c
@@ -408,8 +408,21 @@ static void test_constraints (Object *owner, bPoseChannel *pchan)
 
 				if((data->flag&CAMERASOLVER_ACTIVECLIP)==0) {
 					if(data->clip != NULL && data->track[0]) {
-						if (!BKE_tracking_named_track(&data->clip->tracking, data->track))
+						MovieTracking *tracking= &data->clip->tracking;
+						MovieTrackingObject *tracking_object;
+
+						if(data->object[0])
+							tracking_object= BKE_tracking_named_object(tracking, data->object);
+						else
+							tracking_object= BKE_tracking_get_camera_object(tracking);
+
+						if(!tracking_object) {
 							curcon->flag |= CONSTRAINT_DISABLE;
+						}
+						else {
+							if (!BKE_tracking_named_track(tracking, tracking_object, data->track))
+								curcon->flag |= CONSTRAINT_DISABLE;
+						}
 					}
 					else curcon->flag |= CONSTRAINT_DISABLE;
 				}
diff --git a/source/blender/editors/space_clip/clip_draw.c b/source/blender/editors/space_clip/clip_draw.c
index 3f9ec3f3c82..8f2398b156b 100644
--- a/source/blender/editors/space_clip/clip_draw.c
+++ b/source/blender/editors/space_clip/clip_draw.c
@@ -96,6 +96,7 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	float x;
 	int *points, totseg, i, a;
 	float sfra= SFRA, efra= EFRA, framelen= ar->winx/(efra-sfra+1);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(&clip->tracking);
 
 	glEnable(GL_BLEND);
 
@@ -119,8 +120,8 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	}
 
 	/* track */
-	if(clip->tracking.act_track) {
-		MovieTrackingTrack *track= clip->tracking.act_track;
+	if(act_track) {
+		MovieTrackingTrack *track= act_track;
 
 		for(i= sfra, a= 0; i <= efra; i++) {
 			int framenr;
@@ -835,8 +836,9 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 {
 	float x, y;
 	MovieTracking* tracking= &clip->tracking;
-	MovieTrackingMarker *marker;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track, *act_track;
+	MovieTrackingMarker *marker;
 	int framenr= sc->user.framenr;
 	int undistort= sc->user.render_flag&MCLIP_PROXY_RENDER_UNDISTORT;
 	float *marker_pos= NULL, *fp, *active_pos= NULL, cur_pos[2];
@@ -858,13 +860,13 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	glMultMatrixf(sc->stabmat);
 	glScalef(width, height, 0);
 
-	act_track= clip->tracking.act_track;
+	act_track= BKE_tracking_active_track(tracking);
 
 	if(sc->user.render_flag&MCLIP_PROXY_RENDER_UNDISTORT) {
 		int count= 0;
 
 		/* count */
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0) {
 				marker= BKE_tracking_get_marker(track, framenr);
@@ -880,7 +882,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 		if(count) {
 			marker_pos= MEM_callocN(2*sizeof(float)*count, "draw_tracking_tracks marker_pos");
 
-			track= tracking->tracks.first;
+			track= tracksbase->first;
 			fp= marker_pos;
 			while(track) {
 				if((track->flag&TRACK_HIDDEN)==0) {
@@ -902,7 +904,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	}
 
 	if(sc->flag&SC_SHOW_TRACK_PATH) {
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0)
 				draw_track_path(sc, clip, track);
@@ -912,7 +914,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	}
 
 	/* markers outline and non-selected areas */
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	fp= marker_pos;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
@@ -936,7 +938,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 
 	/* selected areas only, so selection wouldn't be overlapped by
 	   non-selected areas */
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	fp= marker_pos;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
@@ -974,15 +976,16 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	}
 
 	if(sc->flag&SC_SHOW_BUNDLES) {
+		MovieTrackingObject *object= BKE_tracking_active_object(tracking);
 		float pos[4], vec[4], mat[4][4], aspy;
 
 		glEnable(GL_POINT_SMOOTH);
 		glPointSize(3.0f);
 
 		aspy= 1.0f/clip->tracking.camera.pixel_aspect;
-		BKE_tracking_projection_matrix(tracking, framenr, width, height, mat);
+		BKE_tracking_projection_matrix(tracking, object, framenr, width, height, mat);
 
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0 && track->flag&TRACK_HAS_BUNDLE) {
 				marker= BKE_tracking_get_marker(track, framenr);
@@ -1027,7 +1030,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 
 	if(sc->flag&SC_SHOW_NAMES) {
 		/* scaling should be cleared before drawing texts, otherwise font would also be scaled */
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		fp= marker_pos;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0) {
diff --git a/source/blender/editors/space_clip/clip_editor.c b/source/blender/editors/space_clip/clip_editor.c
index c5036145792..d75df0ab51e 100644
--- a/source/blender/editors/space_clip/clip_editor.c
+++ b/source/blender/editors/space_clip/clip_editor.c
@@ -171,12 +171,13 @@ static int selected_boundbox(SpaceClip *sc, float min[2], float max[2])
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track;
 	int width, height, ok= 0;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 
 	INIT_MINMAX2(min, max);
 
 	ED_space_clip_size(sc, &width, &height);
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, sc->user.framenr);
diff --git a/source/blender/editors/space_clip/clip_graph_draw.c b/source/blender/editors/space_clip/clip_graph_draw.c
index 7b14783d4ca..d1e7c86d473 100644
--- a/source/blender/editors/space_clip/clip_graph_draw.c
+++ b/source/blender/editors/space_clip/clip_graph_draw.c
@@ -177,6 +177,7 @@ static void draw_tracks_curves(View2D *v2d, SpaceClip *sc)
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	int width, height;
 	struct { MovieTrackingTrack *act_track; int sel; float xscale, yscale, hsize; } userdata;
 
@@ -188,13 +189,13 @@ static void draw_tracks_curves(View2D *v2d, SpaceClip *sc)
 	/* non-selected knot handles */
 	userdata.hsize= UI_GetThemeValuef(TH_HANDLE_VERTEX_SIZE);
 	userdata.sel= 0;
-	userdata.act_track= clip->tracking.act_track;
+	userdata.act_track= act_track;
 	UI_view2d_getscale(v2d, &userdata.xscale, &userdata.yscale);
 	clip_graph_tracking_values_iterate(sc, &userdata, tracking_segment_knot_cb, NULL, NULL);
 
 	/* draw graph lines */
 	glEnable(GL_BLEND);
-	clip_graph_tracking_values_iterate(sc, tracking->act_track, tracking_segment_point_cb, tracking_segment_start_cb, tracking_segment_end_cb);
+	clip_graph_tracking_values_iterate(sc, act_track, tracking_segment_point_cb, tracking_segment_start_cb, tracking_segment_end_cb);
 	glDisable(GL_BLEND);
 
 	/* selected knot handles on top of curves */
diff --git a/source/blender/editors/space_clip/clip_graph_ops.c b/source/blender/editors/space_clip/clip_graph_ops.c
index 56ca1632bae..08d6bcf47bc 100644
--- a/source/blender/editors/space_clip/clip_graph_ops.c
+++ b/source/blender/editors/space_clip/clip_graph_ops.c
@@ -155,13 +155,14 @@ static int mouse_select_knot(bContext *C, float co[2], int extend)
 	ARegion *ar= CTX_wm_region(C);
 	View2D *v2d= &ar->v2d;
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	static const int delta= 6;
 
-	if(tracking->act_track) {
+	if(act_track) {
 		MouseSelectUserData userdata;
 
 		mouse_select_init_data(&userdata, co);
-		clip_graph_tracking_values_iterate_track(sc, tracking->act_track,
+		clip_graph_tracking_values_iterate_track(sc, act_track,
 					&userdata, find_nearest_tracking_knot_cb, NULL, NULL);
 
 		if(userdata.marker) {
@@ -191,6 +192,7 @@ static int mouse_select_curve(bContext *C, float co[2], int extend)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	MouseSelectUserData userdata;
 
 	mouse_select_init_data(&userdata, co);
@@ -198,12 +200,12 @@ static int mouse_select_curve(bContext *C, float co[2], int extend)
 
 	if(userdata.track) {
 		if(extend) {
-			if(tracking->act_track==userdata.track) {
+			if(act_track==userdata.track) {
 				/* currently only single curve can be selected (selected curve represents active track) */
-				tracking->act_track= NULL;
+				act_track= NULL;
 			}
 		}
-		else if(tracking->act_track!=userdata.track) {
+		else if(act_track!=userdata.track) {
 			MovieTrackingMarker *marker;
 			SelectUserData selectdata = {SEL_DESELECT};
 
@@ -292,9 +294,11 @@ static int delete_curve_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
-	if(tracking->act_track)
-		clip_delete_track(C, clip, tracking->act_track);
+	if(act_track)
+		clip_delete_track(C, clip, tracksbase, act_track);
 
 	return OPERATOR_FINISHED;
 }
@@ -322,16 +326,17 @@ static int delete_knot_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
-	if(tracking->act_track) {
+	if(act_track) {
 		int a= 0;
-		MovieTrackingTrack *track= tracking->act_track;
 
-		while(a<track->markersnr) {
-			MovieTrackingMarker *marker= &track->markers[a];
+		while(a<act_track->markersnr) {
+			MovieTrackingMarker *marker= &act_track->markers[a];
 
 			if(marker->flag&MARKER_GRAPH_SEL)
-				clip_delete_marker(C, clip, track, marker);
+				clip_delete_marker(C, clip, tracksbase, act_track, marker);
 			else
 				a++;
 		}
diff --git a/source/blender/editors/space_clip/clip_intern.h b/source/blender/editors/space_clip/clip_intern.h
index da0b589652e..38da4dd86ff 100644
--- a/source/blender/editors/space_clip/clip_intern.h
+++ b/source/blender/editors/space_clip/clip_intern.h
@@ -92,8 +92,8 @@ void clip_graph_tracking_values_iterate(struct SpaceClip *sc, void *userdata,
 void clip_graph_tracking_iterate(struct SpaceClip *sc, void *userdata,
 			void (*func) (void *userdata, struct MovieTrackingMarker *marker));
 
-void clip_delete_track(struct bContext *C, struct MovieClip *clip, struct MovieTrackingTrack *track);
-void clip_delete_marker(struct bContext *C, struct MovieClip *clip, struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker);
+void clip_delete_track(struct bContext *C, struct MovieClip *clip, struct ListBase *tracksbase, struct MovieTrackingTrack *track);
+void clip_delete_marker(struct bContext *C, struct MovieClip *clip, struct ListBase *tracksbase, struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker);
 
 void clip_view_center_to_point(struct SpaceClip *sc, float x, float y);
 
@@ -139,6 +139,9 @@ void CLIP_OT_stabilize_2d_remove(struct wmOperatorType *ot);
 void CLIP_OT_stabilize_2d_select(struct wmOperatorType *ot);
 void CLIP_OT_stabilize_2d_set_rotation(struct wmOperatorType *ot);
 
-void CLIP_OT_clean_tracks(wmOperatorType *ot);
+void CLIP_OT_clean_tracks(struct wmOperatorType *ot);
+
+void CLIP_OT_tracking_object_new(struct wmOperatorType *ot);
+void CLIP_OT_tracking_object_remove(struct wmOperatorType *ot);
 
 #endif /* ED_CLIP_INTERN_H */
diff --git a/source/blender/editors/space_clip/clip_utils.c b/source/blender/editors/space_clip/clip_utils.c
index 649b278ab3d..3ca8fc35c7f 100644
--- a/source/blender/editors/space_clip/clip_utils.c
+++ b/source/blender/editors/space_clip/clip_utils.c
@@ -119,9 +119,10 @@ void clip_graph_tracking_values_iterate(SpaceClip *sc, void *userdata,
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			clip_graph_tracking_values_iterate_track(sc, track, userdata, func, segment_start, segment_end);
@@ -136,9 +137,10 @@ void clip_graph_tracking_iterate(SpaceClip *sc, void *userdata,
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			int i;
@@ -158,14 +160,15 @@ void clip_graph_tracking_iterate(SpaceClip *sc, void *userdata,
 	}
 }
 
-void clip_delete_track(bContext *C, MovieClip *clip, MovieTrackingTrack *track)
+void clip_delete_track(bContext *C, MovieClip *clip, ListBase *tracksbase, MovieTrackingTrack *track)
 {
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingStabilization *stab= &tracking->stabilization;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
 	int has_bundle= 0, update_stab= 0;
 
-	if(track==tracking->act_track)
+	if(track==act_track)
 		tracking->act_track= NULL;
 
 	if(track==stab->rot_track) {
@@ -179,7 +182,7 @@ void clip_delete_track(bContext *C, MovieClip *clip, MovieTrackingTrack *track)
 		has_bundle= 1;
 
 	BKE_tracking_free_track(track);
-	BLI_freelinkN(&tracking->tracks, track);
+	BLI_freelinkN(tracksbase, track);
 
 	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EDITED, clip);
 
@@ -194,10 +197,10 @@ void clip_delete_track(bContext *C, MovieClip *clip, MovieTrackingTrack *track)
 		WM_event_add_notifier(C, NC_SPACE|ND_SPACE_VIEW3D, NULL);
 }
 
-void clip_delete_marker(bContext *C, MovieClip *clip, MovieTrackingTrack *track, MovieTrackingMarker *marker)
+void clip_delete_marker(bContext *C, MovieClip *clip, ListBase *tracksbase, MovieTrackingTrack *track, MovieTrackingMarker *marker)
 {
 	if(track->markersnr==1) {
-		clip_delete_track(C, clip, track);
+		clip_delete_track(C, clip, tracksbase, track);
 	}
 	else {
 		BKE_tracking_delete_marker(track, marker->framenr);
diff --git a/source/blender/editors/space_clip/space_clip.c b/source/blender/editors/space_clip/space_clip.c
index c8577f7760e..01779a806b9 100644
--- a/source/blender/editors/space_clip/space_clip.c
+++ b/source/blender/editors/space_clip/space_clip.c
@@ -372,6 +372,10 @@ static void clip_operatortypes(void)
 	WM_operatortype_append(CLIP_OT_graph_select);
 	WM_operatortype_append(CLIP_OT_graph_delete_curve);
 	WM_operatortype_append(CLIP_OT_graph_delete_knot);
+
+	/* object tracking */
+	WM_operatortype_append(CLIP_OT_tracking_object_new);
+	WM_operatortype_append(CLIP_OT_tracking_object_remove);
 }
 
 static void clip_keymap(struct wmKeyConfig *keyconf)
diff --git a/source/blender/editors/space_clip/tracking_ops.c b/source/blender/editors/space_clip/tracking_ops.c
index 3d004ab73da..65505fea89e 100644
--- a/source/blender/editors/space_clip/tracking_ops.c
+++ b/source/blender/editors/space_clip/tracking_ops.c
@@ -117,14 +117,16 @@ static int space_clip_camera_poll(bContext *C)
 static void add_marker(SpaceClip *sc, float x, float y)
 {
 	MovieClip *clip= ED_space_clip(sc);
+	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 	int width, height;
 	
 	ED_space_clip_size(sc, &width, &height);
 
-	track= BKE_tracking_add_track(&clip->tracking, x, y, sc->user.framenr, width, height);
+	track= BKE_tracking_add_track(tracking, tracksbase, x, y, sc->user.framenr, width, height);
 
-	BKE_tracking_select_track(&clip->tracking, track, TRACK_AREA_ALL, 0);
+	BKE_tracking_select_track(tracksbase, track, TRACK_AREA_ALL, 0);
 
 	clip->tracking.act_track= track;
 }
@@ -191,13 +193,14 @@ static int delete_track_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track= tracking->tracks.first, *next;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *track= tracksbase->first, *next;
 
 	while(track) {
 		next= track->next;
 
 		if(TRACK_VIEW_SELECTED(sc, track))
-			clip_delete_track(C, clip, track);
+			clip_delete_track(C, clip, tracksbase, track);
 
 		track= next;
 	}
@@ -230,7 +233,8 @@ static int delete_marker_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
-	MovieTrackingTrack *track= clip->tracking.tracks.first, *next;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
+	MovieTrackingTrack *track= tracksbase->first, *next;
 	int framenr= sc->user.framenr;
 	int has_selection= 0;
 
@@ -243,7 +247,7 @@ static int delete_marker_exec(bContext *C, wmOperator *UNUSED(op))
 			if(marker) {
 				has_selection|= track->markersnr>1;
 
-				clip_delete_marker(C, clip, track, marker);
+				clip_delete_marker(C, clip, tracksbase, track, marker);
 			}
 		}
 
@@ -429,6 +433,7 @@ static void *slide_marker_customdata(bContext *C, wmEvent *event)
 	int width, height;
 	float co[2];
 	void *customdata= NULL;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 
 	ED_space_clip_size(sc, &width, &height);
 
@@ -437,7 +442,7 @@ static void *slide_marker_customdata(bContext *C, wmEvent *event)
 
 	ED_clip_mouse_pos(C, event, co);
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_LOCKED)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, sc->user.framenr);
@@ -721,12 +726,12 @@ static float dist_to_rect(float co[2], float pos[2], float min[2], float max[2])
 	return MIN4(d1, d2, d3, d4);
 }
 
-static MovieTrackingTrack *find_nearest_track(SpaceClip *sc, MovieClip *clip, float co[2])
+static MovieTrackingTrack *find_nearest_track(SpaceClip *sc, ListBase *tracksbase, float co[2])
 {
 	MovieTrackingTrack *track= NULL, *cur;
 	float mindist= 0.0f;
 
-	cur= clip->tracking.tracks.first;
+	cur= tracksbase->first;
 	while(cur) {
 		MovieTrackingMarker *marker= BKE_tracking_get_marker(cur, sc->user.framenr);
 
@@ -764,10 +769,11 @@ static int mouse_select(bContext *C, float co[2], int extend)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *act_track= tracking->act_track;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	MovieTrackingTrack *track= NULL;	/* selected marker */
 
-	track= find_nearest_track(sc, clip, co);
+	track= find_nearest_track(sc, tracksbase, co);
 
 	if(track) {
 		int area= track_mouse_area(sc, co, track);
@@ -784,7 +790,7 @@ static int mouse_select(bContext *C, float co[2], int extend)
 			if(area==TRACK_AREA_POINT)
 				area= TRACK_AREA_ALL;
 
-			BKE_tracking_select_track(tracking, track, area, extend);
+			BKE_tracking_select_track(tracksbase, track, area, extend);
 			clip->tracking.act_track= track;
 		}
 	}
@@ -867,6 +873,7 @@ static int border_select_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	rcti rect;
 	rctf rectf;
 	int change= 0, mode, extend;
@@ -884,7 +891,7 @@ static int border_select_exec(bContext *C, wmOperator *op)
 	extend= RNA_boolean_get(op->ptr, "extend");
 
 	/* do actual selection */
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, sc->user.framenr);
@@ -952,6 +959,7 @@ static int circle_select_exec(bContext *C, wmOperator *op)
 	MovieClip *clip= ED_space_clip(sc);
 	ARegion *ar= CTX_wm_region(C);
 	MovieTrackingTrack *track;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	int x, y, radius, width, height, mode, change= 0;
 	float zoomx, zoomy, offset[2], ellipse[2];
 
@@ -972,7 +980,7 @@ static int circle_select_exec(bContext *C, wmOperator *op)
 	ED_clip_point_stable_pos(C, x, y, &offset[0], &offset[1]);
 
 	/* do selection */
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, sc->user.framenr);
@@ -1026,13 +1034,14 @@ static int select_all_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track= NULL;	/* selected track */
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	int action= RNA_enum_get(op->ptr, "action");
 	int framenr= sc->user.framenr;
 	int has_selection= 0;
 
 	if(action == SEL_TOGGLE){
 		action= SEL_SELECT;
-		track= clip->tracking.tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(TRACK_VIEW_SELECTED(sc, track)) {
 				action= SEL_DESELECT;
@@ -1043,7 +1052,7 @@ static int select_all_exec(bContext *C, wmOperator *op)
 		}
 	}
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, framenr);
@@ -1108,9 +1117,11 @@ static int select_groped_exec(bContext *C, wmOperator *op)
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track;
 	MovieTrackingMarker *marker;
+	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	int group= RNA_enum_get(op->ptr, "group");
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		int ok= 0;
 
@@ -1132,11 +1143,13 @@ static int select_groped_exec(bContext *C, wmOperator *op)
 			ok= marker->flag&MARKER_DISABLED;
 		}
 		else if(group==5) { /* color */
-			if(clip->tracking.act_track) {
-				ok= (track->flag&TRACK_CUSTOMCOLOR) == (clip->tracking.act_track->flag&TRACK_CUSTOMCOLOR);
+			MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
+
+			if(act_track) {
+				ok= (track->flag&TRACK_CUSTOMCOLOR) == (act_track->flag&TRACK_CUSTOMCOLOR);
 
 				if(ok && track->flag&TRACK_CUSTOMCOLOR)
-					ok= equals_v3v3(track->color, clip->tracking.act_track->color);
+					ok= equals_v3v3(track->color, act_track->color);
 			}
 		}
 		else if(group==6) { /* failed */
@@ -1208,10 +1221,11 @@ static int track_markers_testbreak(void)
 static int track_count_markers(SpaceClip *sc, MovieClip *clip)
 {
 	int tot= 0;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	int framenr= sc->user.framenr;
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_LOCKED)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_exact_marker(track, framenr);
@@ -1228,6 +1242,7 @@ static int track_count_markers(SpaceClip *sc, MovieClip *clip)
 
 static void track_init_markers(SpaceClip *sc, MovieClip *clip, int *frames_limit_r)
 {
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	int framenr= sc->user.framenr, hidden= 0;
 	int frames_limit= 0;
@@ -1235,7 +1250,7 @@ static void track_init_markers(SpaceClip *sc, MovieClip *clip, int *frames_limit
 	if((sc->flag&SC_SHOW_MARKER_PATTERN)==0) hidden|= TRACK_AREA_PAT;
 	if((sc->flag&SC_SHOW_MARKER_SEARCH)==0) hidden|= TRACK_AREA_SEARCH;
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(hidden)
 			BKE_tracking_track_flag(track, hidden, SELECT, 1);
@@ -1448,6 +1463,11 @@ static int track_markers_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(eve
 	int backwards= RNA_boolean_get(op->ptr, "backwards");
 	int sequence= RNA_boolean_get(op->ptr, "sequence");
 
+	if(WM_jobs_test(CTX_wm_manager(C), CTX_wm_area(C))) {
+		/* only one tracking is allowed at a time */
+		return OPERATOR_CANCELLED;
+	}
+
 	if(clip->tracking_context)
 		return OPERATOR_CANCELLED;
 
@@ -1546,9 +1566,10 @@ static int solve_camera_initjob(bContext *C, SolveCameraJob *scj, wmOperator *op
 	Scene *scene= CTX_data_scene(C);
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingSettings *settings= &clip->tracking.settings;
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
 	int width, height;
 
-	if(!BKE_tracking_can_reconstruct(tracking, error_msg, max_error))
+	if(!BKE_tracking_can_reconstruct(tracking, object, error_msg, max_error))
 		return 0;
 
 	/* could fail if footage uses images with different sizes */
@@ -1559,7 +1580,7 @@ static int solve_camera_initjob(bContext *C, SolveCameraJob *scj, wmOperator *op
 	scj->reports= op->reports;
 	scj->user= sc->user;
 
-	scj->context= BKE_tracking_reconstruction_context_new(tracking,
+	scj->context= BKE_tracking_reconstruction_context_new(tracking, object,
 			settings->keyframe1, settings->keyframe2, width, height);
 
 	tracking->stats= MEM_callocN(sizeof(MovieTrackingStats), "solve camera stats");
@@ -1670,9 +1691,15 @@ static int solve_camera_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(even
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingReconstruction *reconstruction= BKE_tracking_get_reconstruction(tracking);
 	wmJob *steve;
 	char error_msg[256]= "\0";
 
+	if(WM_jobs_test(CTX_wm_manager(C), CTX_wm_area(C))) {
+		/* only one solve is allowed at a time */
+		return OPERATOR_CANCELLED;
+	}
+
 	scj= MEM_callocN(sizeof(SolveCameraJob), "SolveCameraJob data");
 	if(!solve_camera_initjob(C, scj, op, error_msg, sizeof(error_msg))) {
 		if(error_msg[0])
@@ -1686,7 +1713,7 @@ static int solve_camera_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(even
 	BLI_strncpy(tracking->stats->message, "Solving camera | Preparing solve", sizeof(tracking->stats->message));
 
 	/* hide reconstruction statistics from previous solve */
-	clip->tracking.reconstruction.flag&= ~TRACKING_RECONSTRUCTED;
+	reconstruction->flag&= ~TRACKING_RECONSTRUCTED;
 	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EVALUATED, clip);
 
 	/* setup job */
@@ -1746,7 +1773,9 @@ static int clear_solution_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track= tracking->tracks.first;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
+	MovieTrackingReconstruction *reconstruction= BKE_tracking_get_reconstruction(tracking);
+	MovieTrackingTrack *track= tracksbase->first;
 
 	while(track) {
 		track->flag&= ~TRACK_HAS_BUNDLE;
@@ -1754,13 +1783,13 @@ static int clear_solution_exec(bContext *C, wmOperator *UNUSED(op))
 		track= track->next;
 	}
 
-	if(tracking->reconstruction.cameras)
-		MEM_freeN(tracking->reconstruction.cameras);
+	if(reconstruction->cameras)
+		MEM_freeN(reconstruction->cameras);
 
-	tracking->reconstruction.cameras= NULL;
-	tracking->reconstruction.camnr= 0;
+	reconstruction->cameras= NULL;
+	reconstruction->camnr= 0;
 
-	tracking->reconstruction.flag&= ~TRACKING_RECONSTRUCTED;
+	reconstruction->flag&= ~TRACKING_RECONSTRUCTED;
 
 	DAG_id_tag_update(&clip->id, 0);
 
@@ -1792,9 +1821,10 @@ static int clear_track_path_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	int action= RNA_enum_get(op->ptr, "action");
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track))
 			BKE_tracking_clear_path(track, sc->user.framenr, action);
@@ -1839,7 +1869,8 @@ static int disable_markers_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track= tracking->tracks.first;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *track= tracksbase->first;
 	int action= RNA_enum_get(op->ptr, "action");
 
 	while(track) {
@@ -1892,10 +1923,11 @@ static int count_selected_bundles(bContext *C)
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	int tot= 0;
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_HAS_BUNDLE))
 			tot++;
@@ -1910,20 +1942,33 @@ static int set_origin_exec(bContext *C, wmOperator *op)
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
+	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingTrack *track;
+	MovieTrackingObject *tracking_object;
 	Scene *scene= CTX_data_scene(C);
-	Object *parent= scene->camera;
+	Object *object;
+	ListBase *tracksbase;
 	float mat[4][4], vec[3];
 
 	if(count_selected_bundles(C)!=1) {
 		BKE_report(op->reports, RPT_ERROR, "Track with bundle should be selected to define origin position");
+
 		return OPERATOR_CANCELLED;
 	}
 
-	if(scene->camera->parent)
-		parent= scene->camera->parent;
+	tracking_object= BKE_tracking_active_object(tracking);
+
+	if(tracking_object->flag&TRACKING_OBJECT_CAMERA)
+		object= scene->camera;
+	else
+		object= OBACT;
+
+	if(object->parent)
+		object= object->parent;
 
-	track= clip->tracking.tracks.first;
+	tracksbase= BKE_tracking_object_tracks(tracking, tracking_object);
+
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track))
 			break;
@@ -1932,12 +1977,16 @@ static int set_origin_exec(bContext *C, wmOperator *op)
 	}
 
 	BKE_get_tracking_mat(scene, NULL, mat);
+
 	mul_v3_m4v3(vec, mat, track->bundle_pos);
 
-	sub_v3_v3(parent->loc, vec);
+	if(tracking_object->flag&TRACKING_OBJECT_CAMERA)
+		sub_v3_v3(object->loc, vec);
+	else
+		copy_v3_v3(object->loc, vec);
 
 	DAG_id_tag_update(&clip->id, 0);
-	DAG_id_tag_update(&parent->id, OB_RECALC_OB);
+	DAG_id_tag_update(&object->id, OB_RECALC_OB);
 
 	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EVALUATED, clip);
 	WM_event_add_notifier(C, NC_OBJECT|ND_TRANSFORM, NULL);
@@ -1962,12 +2011,27 @@ void CLIP_OT_set_origin(wmOperatorType *ot)
 
 /********************** set floor operator *********************/
 
-static void set_axis(Scene *scene,  Object *ob, MovieTrackingTrack *track, char axis)
+static void set_axis(Scene *scene,  Object *ob, MovieTrackingObject *tracking_object,
+			MovieTrackingTrack *track, char axis)
 {
-	float mat[4][4], vec[3], obmat[4][4];
+	int is_camera= tracking_object->flag&TRACKING_OBJECT_CAMERA;
+	int  flip= 0;
+	float mat[4][4], vec[3], obmat[4][4], dvec[3];
+
+	object_to_mat4(ob, obmat);
 
 	BKE_get_tracking_mat(scene, NULL, mat);
 	mul_v3_m4v3(vec, mat, track->bundle_pos);
+	copy_v3_v3(dvec, vec);
+
+	if(!is_camera) {
+		float imat[4][4];
+
+		invert_m4_m4(imat, obmat);
+		mul_v3_m4v3(dvec, imat, vec);
+
+		sub_v3_v3(vec, obmat[3]);
+	}
 
 	if(len_v2(vec) < 1e-3f)
 		return;
@@ -1975,26 +2039,48 @@ static void set_axis(Scene *scene,  Object *ob, MovieTrackingTrack *track, char
 	unit_m4(mat);
 
 	if(axis=='X') {
-		if(fabsf(vec[1])<1e-3f) {
+		if(fabsf(dvec[1])<1e-3f) {
+			flip= 1;
+
 			mat[0][0]= -1.0f; mat[0][1]= 0.0f; mat[0][2]= 0.0f;
 			mat[1][0]= 0.0f; mat[1][1]= -1.0f; mat[1][2]= 0.0f;
 			mat[2][0]= 0.0f; mat[2][1]= 0.0f; mat[2][2]= 1.0f;
 		} else {
 			copy_v3_v3(mat[0], vec);
-			mat[0][2]= 0.0f;
-			mat[2][0]= 0.0f; mat[2][1]= 0.0f; mat[2][2]= 1.0f;
-			cross_v3_v3v3(mat[1], mat[2], mat[0]);
+
+			if(is_camera || fabsf(vec[2])<1e-3f) {
+				mat[0][2]= 0.0f;
+				mat[2][0]= 0.0f; mat[2][1]= 0.0f; mat[2][2]= 1.0f;
+				cross_v3_v3v3(mat[1], mat[2], mat[0]);
+			}
+			else {
+				vec[2]= 0.0f;
+
+				cross_v3_v3v3(mat[1], mat[0], vec);
+				cross_v3_v3v3(mat[2], mat[0], mat[1]);
+			}
 		}
 	} else {
-		if(fabsf(vec[0])<1e-3f) {
+		if(fabsf(dvec[0])<1e-3f) {
+			flip= 1;
+
 			mat[0][0]= -1.0f; mat[0][1]= 0.0f; mat[0][2]= 0.0f;
 			mat[1][0]= 0.0f; mat[1][1]= -1.0f; mat[1][2]= 0.0f;
 			mat[2][0]= 0.0f; mat[2][1]= 0.0f; mat[2][2]= 1.0f;
 		} else {
 			copy_v3_v3(mat[1], vec);
-			mat[1][2]= 0.0f;
-			mat[2][0]= 0.0f; mat[2][1]= 0.0f; mat[2][2]= 1.0f;
-			cross_v3_v3v3(mat[0], mat[1], mat[2]);
+
+			if(is_camera || fabsf(vec[2])<1e-3f) {
+				mat[1][2]= 0.0f;
+				mat[2][0]= 0.0f; mat[2][1]= 0.0f; mat[2][2]= 1.0f;
+				cross_v3_v3v3(mat[0], mat[1], mat[2]);
+			}
+			else {
+				vec[2]= 0.0f;
+
+				cross_v3_v3v3(mat[0], vec, mat[1]);
+				cross_v3_v3v3(mat[2], mat[0], mat[1]);
+			}
 		}
 	}
 
@@ -2002,10 +2088,25 @@ static void set_axis(Scene *scene,  Object *ob, MovieTrackingTrack *track, char
 	normalize_v3(mat[1]);
 	normalize_v3(mat[2]);
 
-	invert_m4(mat);
+	if(is_camera) {
+		invert_m4(mat);
+
+		mul_m4_m4m4(mat, obmat, mat);
+	}
+	else {
+		if(!flip) {
+			float rmat[3][3], tmat[4][4];
+
+			object_rot_to_mat3(ob, rmat);
+			copy_m4_m3(tmat, rmat);
+			invert_m4(tmat);
+
+			mul_m4_m4m4(mat, mat, tmat);
+		}
+
+		mul_m4_m4m4(mat, mat, obmat);
+	}
 
-	object_to_mat4(ob, obmat);
-	mul_m4_m4m4(mat, obmat, mat);
 	object_apply_mat4(ob, mat, 0, 0);
 }
 
@@ -2014,9 +2115,11 @@ static int set_floor_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	Scene *scene= CTX_data_scene(C);
-	MovieTrackingTrack *track, *axis_track= NULL;
-	Object *camera= scene->camera;
-	Object *parent= camera;
+	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingObject *tracking_object;
+	MovieTrackingTrack *track, *axis_track= NULL, *act_track;
+	ListBase *tracksbase;
+	Object *object;
 	int tot= 0;
 	float vec[3][3], mat[4][4], obmat[4][4], newmat[4][4], orig[3]= {0.0f, 0.0f, 0.0f};
 	float rot[4][4]={{0.0f, 0.0f, -1.0f, 0.0f},
@@ -2026,21 +2129,31 @@ static int set_floor_exec(bContext *C, wmOperator *op)
 
 	if(count_selected_bundles(C)!=3) {
 		BKE_report(op->reports, RPT_ERROR, "Three tracks with bundles are needed to orient the floor");
+
 		return OPERATOR_CANCELLED;
 	}
 
-	if(scene->camera->parent)
-		parent= scene->camera->parent;
+	tracking_object= BKE_tracking_active_object(tracking);
+	tracksbase= BKE_tracking_object_tracks(tracking, tracking_object);
+	act_track= BKE_tracking_active_track(tracking);
+
+	if(tracking_object->flag&TRACKING_OBJECT_CAMERA)
+		object= scene->camera;
+	else
+		object= OBACT;
+
+	if(object->parent)
+		object= object->parent;
 
 	BKE_get_tracking_mat(scene, NULL, mat);
 
 	/* get 3 bundles to use as reference */
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track && tot<3) {
 		if(track->flag&TRACK_HAS_BUNDLE && TRACK_VIEW_SELECTED(sc, track)) {
 			mul_v3_m4v3(vec[tot], mat, track->bundle_pos);
 
-			if(tot==0 || track==clip->tracking.act_track)
+			if(tot==0 || track==act_track)
 				copy_v3_v3(orig, vec[tot]);
 			else
 				axis_track= track;
@@ -2070,25 +2183,30 @@ static int set_floor_exec(bContext *C, wmOperator *op)
 	mat[3][1]= orig[1];
 	mat[3][2]= orig[2];
 
-	invert_m4(mat);
-
-	object_to_mat4(parent, obmat);
-	mul_m4_m4m4(mat, obmat, mat);
-	mul_m4_m4m4(newmat, mat, rot);
-	object_apply_mat4(parent, newmat, 0, 0);
+	if(tracking_object->flag&TRACKING_OBJECT_CAMERA) {
+		invert_m4(mat);
 
-	/* make camera have positive z-coordinate */
-	if(parent->loc[2]<0) {
-		invert_m4(rot);
+		object_to_mat4(object, obmat);
+		mul_m4_m4m4(mat, obmat, mat);
 		mul_m4_m4m4(newmat, mat, rot);
-		object_apply_mat4(parent, newmat, 0, 0);
+		object_apply_mat4(object, newmat, 0, 0);
+
+		/* make camera have positive z-coordinate */
+		if(object->loc[2]<0) {
+		  invert_m4(rot);
+		  mul_m4_m4m4(newmat, mat, rot);
+		  object_apply_mat4(object, newmat, 0, 0);
+		}
+	}
+	else {
+		object_apply_mat4(object, mat, 0, 0);
 	}
 
-	where_is_object(scene, parent);
-	set_axis(scene, parent, axis_track, 'X');
+	where_is_object(scene, object);
+	set_axis(scene, object, tracking_object, axis_track, 'X');
 
 	DAG_id_tag_update(&clip->id, 0);
-	DAG_id_tag_update(&parent->id, OB_RECALC_OB);
+	DAG_id_tag_update(&object->id, OB_RECALC_OB);
 
 	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EVALUATED, clip);
 	WM_event_add_notifier(C, NC_OBJECT|ND_TRANSFORM, NULL);
@@ -2117,9 +2235,12 @@ static int set_axis_exec(bContext *C, wmOperator *op)
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
+	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingObject *tracking_object= BKE_tracking_active_object(tracking);
 	MovieTrackingTrack *track;
 	Scene *scene= CTX_data_scene(C);
-	Object *parent= scene->camera;
+	Object *object;
+	ListBase *tracksbase;
 	int axis= RNA_enum_get(op->ptr, "axis");
 
 	if(count_selected_bundles(C)!=1) {
@@ -2128,10 +2249,17 @@ static int set_axis_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
-	if(scene->camera->parent)
-		parent= scene->camera->parent;
+	if(tracking_object->flag & TRACKING_OBJECT_CAMERA)
+		object= scene->camera;
+	else
+		object= OBACT;
 
-	track= clip->tracking.tracks.first;
+	if(object->parent)
+		object= object->parent;
+
+	tracksbase= BKE_tracking_object_tracks(tracking, tracking_object);
+
+	track=tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track))
 			break;
@@ -2139,10 +2267,10 @@ static int set_axis_exec(bContext *C, wmOperator *op)
 		track= track->next;
 	}
 
-	set_axis(scene, parent, track, axis==0?'X':'Y');
+	set_axis(scene, object, tracking_object, track, axis==0?'X':'Y');
 
 	DAG_id_tag_update(&clip->id, 0);
-	DAG_id_tag_update(&parent->id, OB_RECALC_OB);
+	DAG_id_tag_update(&object->id, OB_RECALC_OB);
 
 	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EVALUATED, clip);
 	WM_event_add_notifier(C, NC_OBJECT|ND_TRANSFORM, NULL);
@@ -2183,6 +2311,7 @@ static int set_scale_exec(bContext *C, wmOperator *op)
 	MovieTrackingTrack *track;
 	Scene *scene= CTX_data_scene(C);
 	Object *parent= scene->camera;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	int tot= 0;
 	float vec[2][3], mat[4][4], scale;
 	float dist= RNA_float_get(op->ptr, "distance");
@@ -2198,7 +2327,7 @@ static int set_scale_exec(bContext *C, wmOperator *op)
 
 	BKE_get_tracking_mat(scene, NULL, mat);
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			mul_v3_m4v3(vec[tot], mat, track->bundle_pos);
@@ -2301,11 +2430,14 @@ static int hide_tracks_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track;
+	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	int unselected;
 
 	unselected= RNA_boolean_get(op->ptr, "unselected");
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(unselected==0 && TRACK_VIEW_SELECTED(sc, track)) {
 			track->flag|= TRACK_HIDDEN;
@@ -2316,7 +2448,7 @@ static int hide_tracks_exec(bContext *C, wmOperator *op)
 		track= track->next;
 	}
 
-	if(clip->tracking.act_track && clip->tracking.act_track->flag&TRACK_HIDDEN)
+	if(act_track && act_track->flag&TRACK_HIDDEN)
 		clip->tracking.act_track= NULL;
 
 	if(unselected==0) {
@@ -2353,9 +2485,10 @@ static int hide_tracks_clear_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		track->flag&= ~TRACK_HIDDEN;
 
@@ -2407,7 +2540,9 @@ static int detect_features_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	ImBuf *ibuf= BKE_movieclip_get_ibuf_flag(clip, &sc->user, 0);
-	MovieTrackingTrack *track= clip->tracking.tracks.first;
+	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *track= tracksbase->first;
 	int placement= RNA_enum_get(op->ptr, "placement");
 	int margin= RNA_int_get(op->ptr, "margin");
 	int min_trackability= RNA_int_get(op->ptr, "min_trackability");
@@ -2429,7 +2564,8 @@ static int detect_features_exec(bContext *C, wmOperator *op)
 		track= track->next;
 	}
 
-	BKE_tracking_detect_fast(&clip->tracking, ibuf, sc->user.framenr, margin, min_trackability, min_distance, layer, place_outside_layer);
+	BKE_tracking_detect_fast(tracking, tracksbase, ibuf, sc->user.framenr, margin,
+				min_trackability, min_distance, layer, place_outside_layer);
 
 	IMB_freeImBuf(ibuf);
 
@@ -2478,7 +2614,7 @@ static int frame_jump_exec(bContext *C, wmOperator *op)
 	int delta;
 
 	if(pos<=1) {	/* jump to path */
-		track= clip->tracking.act_track;
+		track= BKE_tracking_active_track(&clip->tracking);
 
 		if(!track)
 			return OPERATOR_CANCELLED;
@@ -2498,13 +2634,16 @@ static int frame_jump_exec(bContext *C, wmOperator *op)
 		if(clip->tracking.reconstruction.flag&TRACKING_RECONSTRUCTED) {
 			int a= sc->user.framenr;
 			MovieTracking *tracking= &clip->tracking;
+			MovieTrackingObject *object= BKE_tracking_active_object(tracking);
 
 			delta= pos == 3 ? 1 : -1;
 
 			a+= delta;
 
 			while(a+delta >= SFRA && a+delta <= EFRA) {
-				MovieReconstructedCamera *cam= BKE_tracking_get_reconstructed_camera(tracking, a);
+				MovieReconstructedCamera *cam;
+
+				cam= BKE_tracking_get_reconstructed_camera(tracking, object, a);
 
 				if(!cam) {
 					sc->user.framenr= a;
@@ -2561,16 +2700,18 @@ static int join_tracks_exec(bContext *C, wmOperator *op)
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
+	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *act_track, *track, *next;
 
-	act_track= clip->tracking.act_track;
+	act_track= BKE_tracking_active_track(tracking);
 
 	if(!act_track) {
 		BKE_report(op->reports, RPT_ERROR, "No active track to join to");
 		return OPERATOR_CANCELLED;
 	}
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && track!=act_track) {
 			if(!BKE_tracking_test_join_tracks(act_track, track)) {
@@ -2582,7 +2723,7 @@ static int join_tracks_exec(bContext *C, wmOperator *op)
 		track= track->next;
 	}
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		next= track->next;
 
@@ -2590,7 +2731,7 @@ static int join_tracks_exec(bContext *C, wmOperator *op)
 			BKE_tracking_join_tracks(act_track, track);
 
 			BKE_tracking_free_track(track);
-			BLI_freelinkN(&clip->tracking.tracks, track);
+			BLI_freelinkN(tracksbase, track);
 		}
 
 		track= next;
@@ -2623,7 +2764,8 @@ static int lock_tracks_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track= tracking->tracks.first;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *track= tracksbase->first;
 	int action= RNA_enum_get(op->ptr, "action");
 
 	while(track) {
@@ -2672,12 +2814,14 @@ static int track_copy_color_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
-	MovieTrackingTrack *track, *act_track= clip->tracking.act_track;
+	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *track, *act_track= BKE_tracking_active_track(tracking);
 
 	if(!act_track)
 		return OPERATOR_CANCELLED;
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && track!=act_track) {
 			track->flag&= ~TRACK_CUSTOMCOLOR;
@@ -2718,11 +2862,12 @@ static int stabilize_2d_add_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 	MovieTrackingStabilization *stab= &tracking->stabilization;
 	int update= 0;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_USE_2D_STAB)==0) {
 			track->flag|= TRACK_USE_2D_STAB;
@@ -2767,10 +2912,11 @@ static int stabilize_2d_remove_exec(bContext *C, wmOperator *UNUSED(op))
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingStabilization *stab= &tracking->stabilization;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 	int a= 0, update= 0;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(track->flag&TRACK_USE_2D_STAB) {
 			if(a==stab->act_track) {
@@ -2825,10 +2971,11 @@ static int stabilize_2d_select_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 	int update= 0;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(track->flag&TRACK_USE_2D_STAB) {
 			BKE_tracking_track_flag(track, TRACK_AREA_ALL, SELECT, 0);
@@ -2867,11 +3014,12 @@ static int stabilize_2d_set_rotation_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
-	if(tracking->act_track) {
+	if(act_track) {
 		MovieTrackingStabilization *stab= &tracking->stabilization;
 
-		stab->rot_track= tracking->act_track;
+		stab->rot_track= act_track;
 		stab->ok= 0;
 
 		DAG_id_tag_update(&clip->id, 0);
@@ -2996,7 +3144,8 @@ static int clean_tracks_exec(bContext *C, wmOperator *op)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track, *next, *act_track= clip->tracking.act_track;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *track, *next, *act_track= BKE_tracking_active_track(tracking);
 	int frames= RNA_int_get(op->ptr, "frames");
 	int action= RNA_enum_get(op->ptr, "action");
 	float error= RNA_float_get(op->ptr, "error");
@@ -3004,7 +3153,7 @@ static int clean_tracks_exec(bContext *C, wmOperator *op)
 	if(error && action==TRACKING_CLEAN_DELETE_SEGMENT)
 		action= TRACKING_CLEAN_DELETE_TRACK;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		next= track->next;
 
@@ -3023,7 +3172,7 @@ static int clean_tracks_exec(bContext *C, wmOperator *op)
 						clip->tracking.act_track= NULL;
 
 					BKE_tracking_free_track(track);
-					BLI_freelinkN(&clip->tracking.tracks, track);
+					BLI_freelinkN(tracksbase, track);
 					track= NULL;
 				}
 
@@ -3033,7 +3182,7 @@ static int clean_tracks_exec(bContext *C, wmOperator *op)
 						clip->tracking.act_track= NULL;
 
 					BKE_tracking_free_track(track);
-					BLI_freelinkN(&clip->tracking.tracks, track);
+					BLI_freelinkN(tracksbase, track);
 				}
 			}
 		}
@@ -3090,3 +3239,71 @@ void CLIP_OT_clean_tracks(wmOperatorType *ot)
 	RNA_def_float(ot->srna, "error", 0.0f, 0.0f, FLT_MAX, "Reprojection Error", "Effect on tracks with have got larger reprojection error", 0.0f, 100.0f);
 	RNA_def_enum(ot->srna, "action", actions_items, 0, "Action", "Cleanup action to execute");
 }
+
+/********************** add tracking object *********************/
+
+static int tracking_object_new_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	SpaceClip *sc= CTX_wm_space_clip(C);
+	MovieClip *clip= ED_space_clip(sc);
+	MovieTracking *tracking= &clip->tracking;
+
+	BKE_tracking_new_object(tracking, "Object");
+
+	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EDITED, clip);
+
+	return OPERATOR_FINISHED;
+}
+
+void CLIP_OT_tracking_object_new(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Add Tracking Object";
+	ot->description= "Add new object for tracking";
+	ot->idname= "CLIP_OT_tracking_object_new";
+
+	/* api callbacks */
+	ot->exec= tracking_object_new_exec;
+	ot->poll= ED_space_clip_poll;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/********************** remove tracking object *********************/
+
+static int tracking_object_remove_exec(bContext *C, wmOperator *op)
+{
+	SpaceClip *sc= CTX_wm_space_clip(C);
+	MovieClip *clip= ED_space_clip(sc);
+	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingObject *object;
+
+	object= BKE_tracking_active_object(tracking);
+
+	if(object->flag&TRACKING_OBJECT_CAMERA) {
+		BKE_report(op->reports, RPT_WARNING, "Object used for camera tracking can't be deleted");
+		return OPERATOR_CANCELLED;
+	}
+
+	BKE_tracking_remove_object(tracking, object);
+
+	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EDITED, clip);
+
+	return OPERATOR_FINISHED;
+}
+
+void CLIP_OT_tracking_object_remove(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Movie Tracking Object";
+	ot->description= "Remove object for tracking";
+	ot->idname= "CLIP_OT_tracking_object_remove";
+
+	/* api callbacks */
+	ot->exec= tracking_object_remove_exec;
+	ot->poll= ED_space_clip_poll;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index 547d89cd1a2..a36f49a35d8 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -1458,43 +1458,44 @@ static void draw_bundle_sphere(void)
 	glCallList(displist);
 }
 
-static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d, MovieClip *clip, int flag)
+static void draw_viewport_object_reconstruction(Scene *scene, Base *base, View3D *v3d,
+			MovieClip *clip, MovieTrackingObject *tracking_object, int flag)
 {
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingTrack *track;
-	float mat[4][4], imat[4][4], curcol[4];
+	float mat[4][4], imat[4][4];
 	unsigned char col[4], scol[4];
 	int bundlenr= 1;
-
-	if((v3d->flag2&V3D_SHOW_RECONSTRUCTION)==0)
-		return;
-
-	if(v3d->flag2&V3D_RENDER_OVERRIDE)
-		return;
-
-	glGetFloatv(GL_CURRENT_COLOR, curcol);
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, tracking_object);
 
 	UI_GetThemeColor4ubv(TH_TEXT, col);
 	UI_GetThemeColor4ubv(TH_SELECT, scol);
 
 	BKE_get_tracking_mat(scene, base->object, mat);
 
-	glEnable(GL_LIGHTING);
-	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
-	glEnable(GL_COLOR_MATERIAL);
-	glShadeModel(GL_SMOOTH);
+	glPushMatrix();
 
-	/* current ogl matrix is translated in camera space, bundles should
-	   be rendered in world space, so camera matrix should be "removed"
-	   from current ogl matrix */
-	invert_m4_m4(imat, base->object->obmat);
+	if(tracking_object->flag & TRACKING_OBJECT_CAMERA) {
+		/* current ogl matrix is translated in camera space, bundles should
+		   be rendered in world space, so camera matrix should be "removed"
+		   from current ogl matrix */
+		invert_m4_m4(imat, base->object->obmat);
 
-	glPushMatrix();
-	glMultMatrixf(imat);
-	glMultMatrixf(mat);
+		glMultMatrixf(imat);
+		glMultMatrixf(mat);
+	}
+	else {
+		float obmat[4][4];
+
+		BKE_tracking_get_interpolated_camera(tracking, tracking_object, scene->r.cfra, obmat);
+
+		invert_m4_m4(imat, obmat);
+		glMultMatrixf(imat);
+	}
+
+	for (track= tracksbase->first; track; track= track->next) {
+		int selected= TRACK_SELECTED(track);
 
-	for ( track= tracking->tracks.first; track; track= track->next) {
-		int selected= track->flag&SELECT || track->pat_flag&SELECT || track->search_flag&SELECT;
 		if((track->flag&TRACK_HAS_BUNDLE)==0)
 			continue;
 
@@ -1581,27 +1582,58 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 	}
 
 	if((flag & DRAW_PICKING)==0) {
-		if(v3d->flag2&V3D_SHOW_CAMERAPATH && clip->tracking.reconstruction.camnr) {
-			int a= 0;
-			MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
-			MovieReconstructedCamera *camera= tracking->reconstruction.cameras;
+		if((v3d->flag2&V3D_SHOW_CAMERAPATH) && (tracking_object->flag&TRACKING_OBJECT_CAMERA)) {
+			MovieTrackingReconstruction *reconstruction;
+			reconstruction= BKE_tracking_object_reconstruction(tracking, tracking_object);
 
-			glDisable(GL_LIGHTING);
-			UI_ThemeColor(TH_CAMERA_PATH);
-			glLineWidth(2.0f);
+			if(reconstruction->camnr) {
+				MovieReconstructedCamera *camera= reconstruction->cameras;
+				int a= 0;
 
-			glBegin(GL_LINE_STRIP);
-				for(a= 0; a<reconstruction->camnr; a++, camera++) {
-					glVertex3fv(camera->mat[3]);
-				}
-			glEnd();
+				glDisable(GL_LIGHTING);
+				UI_ThemeColor(TH_CAMERA_PATH);
+				glLineWidth(2.0f);
 
-			glLineWidth(1.0f);
-			glEnable(GL_LIGHTING);
+				glBegin(GL_LINE_STRIP);
+					for(a= 0; a<reconstruction->camnr; a++, camera++) {
+						glVertex3fv(camera->mat[3]);
+					}
+					glEnd();
+
+					glLineWidth(1.0f);
+					glEnable(GL_LIGHTING);
+			}
 		}
 	}
 
 	glPopMatrix();
+}
+
+static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d, MovieClip *clip, int flag)
+{
+	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingObject *tracking_object;
+	float curcol[4];
+
+	if((v3d->flag2&V3D_SHOW_RECONSTRUCTION)==0)
+		return;
+
+	if(v3d->flag2&V3D_RENDER_OVERRIDE)
+		return;
+
+	glGetFloatv(GL_CURRENT_COLOR, curcol);
+
+	glEnable(GL_LIGHTING);
+	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
+	glEnable(GL_COLOR_MATERIAL);
+	glShadeModel(GL_SMOOTH);
+
+	tracking_object= tracking->objects.first;
+	while(tracking_object) {
+		draw_viewport_object_reconstruction(scene, base, v3d, clip, tracking_object, flag);
+
+		tracking_object= tracking_object->next;
+	}
 
 	/* restore */
 	glShadeModel(GL_FLAT);
diff --git a/source/blender/editors/space_view3d/view3d_select.c b/source/blender/editors/space_view3d/view3d_select.c
index 33f7acf2a37..d8ff01a880d 100644
--- a/source/blender/editors/space_view3d/view3d_select.c
+++ b/source/blender/editors/space_view3d/view3d_select.c
@@ -1405,13 +1405,17 @@ static int mouse_select(bContext *C, const int mval[2], short extend, short obce
 							   in hight word, this buffer value belongs to camera,. not to bundle */
 							if(buffer[4*i+3] & 0xFFFF0000) {
 								MovieClip *clip= object_get_movieclip(scene, basact->object, 0);
+								MovieTracking *tracking= &clip->tracking;
 								int selected;
+
 								track= BKE_tracking_indexed_track(&clip->tracking, hitresult >> 16);
 
 								selected= (track->flag&SELECT) || (track->pat_flag&SELECT) || (track->search_flag&SELECT);
 
-								if(selected && extend)  BKE_tracking_deselect_track(track, TRACK_AREA_ALL);
-								else BKE_tracking_select_track(&clip->tracking, track, TRACK_AREA_ALL, extend);
+								if(selected && extend)
+									BKE_tracking_deselect_track(track, TRACK_AREA_ALL);
+								else
+									BKE_tracking_select_track(&tracking->tracks, track, TRACK_AREA_ALL, extend);
 
 								basact->flag|= SELECT;
 								basact->object->flag= basact->flag;
diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 5527ab0d331..96eb60272c1 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -5391,6 +5391,7 @@ static void createTransTrackingData(bContext *C, TransInfo *t)
 	TransData2D *td2d;
 	SpaceClip *sc = CTX_wm_space_clip(C);
 	MovieClip *clip = ED_space_clip(sc);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	MovieTrackingMarker *marker;
 	TransDataTracking *tdt;
@@ -5404,7 +5405,7 @@ static void createTransTrackingData(bContext *C, TransInfo *t)
 	/* count */
 	t->total = 0;
 
-	track = clip->tracking.tracks.first;
+	track = tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_LOCKED)==0) {
 			marker= BKE_tracking_get_marker(track, framenr);
@@ -5431,7 +5432,7 @@ static void createTransTrackingData(bContext *C, TransInfo *t)
 	t->customFree= transDataTrackingFree;
 
 	/* create actual data */
-	track = clip->tracking.tracks.first;
+	track = tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_LOCKED)==0) {
 			marker= BKE_tracking_get_marker(track, framenr);
diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index d0857958a4b..0b0a0eb2e2d 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -641,10 +641,11 @@ static void recalcData_clip(TransInfo *t)
 {
 	SpaceClip *sc= t->sa->spacedata.first;
 	MovieClip *clip= ED_space_clip(sc);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	
 	if(t->state == TRANS_CANCEL) {
-		track= clip->tracking.tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(TRACK_VIEW_SELECTED(sc, track)) {
 				MovieTrackingMarker *marker= BKE_tracking_ensure_marker(track, sc->user.framenr);
@@ -658,7 +659,7 @@ static void recalcData_clip(TransInfo *t)
 	
 	flushTransTracking(t);
 	
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			if (t->mode == TFM_TRANSLATION) {
diff --git a/source/blender/makesdna/DNA_constraint_types.h b/source/blender/makesdna/DNA_constraint_types.h
index 4aff540a948..10c4153702d 100644
--- a/source/blender/makesdna/DNA_constraint_types.h
+++ b/source/blender/makesdna/DNA_constraint_types.h
@@ -412,6 +412,7 @@ typedef struct bFollowTrackConstraint {
 	struct MovieClip	*clip;
 	char	track[24];
 	int		flag, pad;
+	char		object[24];
 } bFollowTrackConstraint;
 
 /* Camera Solver constraints */
@@ -420,6 +421,13 @@ typedef struct bCameraSolverConstraint {
 	int		flag, pad;
 } bCameraSolverConstraint;
 
+/* Camera Solver constraints */
+typedef struct bObjectSolverConstraint {
+	struct MovieClip	*clip;
+	int		flag, pad;
+	char		object[24];
+} bObjectSolverConstraint;
+
 /* ------------------------------------------ */
 
 /* bConstraint->type 
@@ -455,6 +463,7 @@ typedef enum eBConstraint_Types {
 	CONSTRAINT_TYPE_PIVOT,				/* Pivot Constraint */
 	CONSTRAINT_TYPE_FOLLOWTRACK,		/* Follow Track Constraint */
 	CONSTRAINT_TYPE_CAMERASOLVER,		/* Camera Solver Constraint */
+	CONSTRAINT_TYPE_OBJECTSOLVER,		/* Object Solver Constraint */
 	
 	/* NOTE: no constraints are allowed to be added after this */
 	NUM_CONSTRAINT_TYPES
@@ -762,6 +771,11 @@ typedef enum eCameraSolver_Flags {
 	CAMERASOLVER_ACTIVECLIP	= (1<<0)
 } eCameraSolver_Flags;
 
+/* ObjectSolver Constraint -> flag */
+typedef enum eObjectSolver_Flags {
+	OBJECTSOLVER_ACTIVECLIP	= (1<<0)
+} eObjectSolver_Flags;
+
 /* Rigid-Body Constraint */
 #define CONSTRAINT_DRAW_PIVOT 0x40
 #define 	CONSTRAINT_DISABLE_LINKED_COLLISION 0x80
diff --git a/source/blender/makesdna/DNA_tracking_types.h b/source/blender/makesdna/DNA_tracking_types.h
index 9058e82b367..fd0e281b60f 100644
--- a/source/blender/makesdna/DNA_tracking_types.h
+++ b/source/blender/makesdna/DNA_tracking_types.h
@@ -172,6 +172,15 @@ typedef struct MovieTrackingReconstruction {
 	struct MovieReconstructedCamera *cameras;	/* reconstructed cameras */
 } MovieTrackingReconstruction;
 
+typedef struct MovieTrackingObject {
+	struct MovieTrackingObject *next, *prev;
+
+	char name[24];			/* Name of tracking object */
+	int flag, pad;
+	ListBase tracks;		/* list of tracks use to tracking this object */
+	MovieTrackingReconstruction reconstruction;	/* reconstruction data for this object */
+} MovieTrackingObject;
+
 typedef struct MovieTrackingStats {
 	char message[256];
 } MovieTrackingStats;
@@ -179,11 +188,14 @@ typedef struct MovieTrackingStats {
 typedef struct MovieTracking {
 	MovieTrackingSettings settings;	/* different tracking-related settings */
 	MovieTrackingCamera camera;		/* camera intrinsics */
-	ListBase tracks;				/* all tracks */
-	MovieTrackingReconstruction reconstruction;	/* reconstruction data */
+	ListBase tracks;				/* list of tracks used for camera object */
+	MovieTrackingReconstruction reconstruction;	/* reconstruction data for camera object */
 	MovieTrackingStabilization stabilization;	/* stabilization data */
 	MovieTrackingTrack *act_track;		/* active track */
 
+	ListBase objects;
+	int objectnr, tot_object;		/* index of active object and total number of objects */
+
 	MovieTrackingStats *stats;		/* statistics displaying in clip editor */
 } MovieTracking;
 
@@ -242,6 +254,9 @@ enum {
 /* MovieTrackingReconstruction->flag */
 #define TRACKING_RECONSTRUCTED	(1<<0)
 
+/* MovieTrackingObject->flag */
+#define TRACKING_OBJECT_CAMERA		(1<<0)
+
 #define TRACKING_CLEAN_SELECT			0
 #define TRACKING_CLEAN_DELETE_TRACK		1
 #define TRACKING_CLEAN_DELETE_SEGMENT	2
diff --git a/source/blender/makesrna/RNA_access.h b/source/blender/makesrna/RNA_access.h
index 37a5b5643b8..215c7992ff3 100644
--- a/source/blender/makesrna/RNA_access.h
+++ b/source/blender/makesrna/RNA_access.h
@@ -329,6 +329,7 @@ extern StructRNA RNA_MotionPath;
 extern StructRNA RNA_MotionPathVert;
 extern StructRNA RNA_MouseSensor;
 extern StructRNA RNA_MovieSequence;
+extern StructRNA RNA_MovieTrackingObject;
 extern StructRNA RNA_MulticamSequence;
 extern StructRNA RNA_MultiresModifier;
 extern StructRNA RNA_MusgraveTexture;
diff --git a/source/blender/makesrna/intern/rna_constraint.c b/source/blender/makesrna/intern/rna_constraint.c
index 4ab14550fd1..4d064c01fae 100644
--- a/source/blender/makesrna/intern/rna_constraint.c
+++ b/source/blender/makesrna/intern/rna_constraint.c
@@ -45,6 +45,7 @@
 EnumPropertyItem constraint_type_items[] ={
 	{0, "", 0, "Motion Tracking", ""},
 	{CONSTRAINT_TYPE_CAMERASOLVER, "CAMERA_SOLVER", ICON_CONSTRAINT_DATA, "Camera Solver", ""},
+	{CONSTRAINT_TYPE_OBJECTSOLVER, "OBJECT_SOLVER", ICON_CONSTRAINT_DATA, "Object Solver", ""},
 	{CONSTRAINT_TYPE_FOLLOWTRACK, "FOLLOW_TRACK", ICON_CONSTRAINT_DATA, "Follow Track", ""},
 	{0, "", 0, "Transform", ""},
 	{CONSTRAINT_TYPE_LOCLIKE, "COPY_LOCATION", ICON_CONSTRAINT_DATA, "Copy Location", ""},
@@ -163,6 +164,8 @@ static StructRNA *rna_ConstraintType_refine(struct PointerRNA *ptr)
 			return &RNA_FollowTrackConstraint;
 		case CONSTRAINT_TYPE_CAMERASOLVER:
 			return &RNA_CameraSolverConstraint;
+		case CONSTRAINT_TYPE_OBJECTSOLVER:
+			return &RNA_ObjectSolverConstraint;
 		default:
 			return &RNA_UnknownType;
 	}
@@ -2066,6 +2069,12 @@ static void rna_def_constraint_follow_track(BlenderRNA *brna)
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", FOLLOWTRACK_USE_3D_POSITION);
 	RNA_def_property_ui_text(prop, "3D Position", "Use 3D position of track to parent to");
 	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_update");
+
+	/* object */
+	prop= RNA_def_property(srna, "object", PROP_STRING, PROP_NONE);
+	RNA_def_property_string_sdna(prop, NULL, "object");
+	RNA_def_property_ui_text(prop, "Object", "Movie tracking object to follow");
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
 }
 
 static void rna_def_constraint_camera_solver(BlenderRNA *brna)
@@ -2074,7 +2083,7 @@ static void rna_def_constraint_camera_solver(BlenderRNA *brna)
 	PropertyRNA *prop;
 
 	srna= RNA_def_struct(brna, "CameraSolverConstraint", "Constraint");
-	RNA_def_struct_ui_text(srna, "Follow Track Constraint", "Lock motion to the reconstructed camera movement");
+	RNA_def_struct_ui_text(srna, "Camera Solver Constraint", "Lock motion to the reconstructed camera movement");
 	RNA_def_struct_sdna_from(srna, "bCameraSolverConstraint", "data");
 
 	/* movie clip */
@@ -2091,6 +2100,35 @@ static void rna_def_constraint_camera_solver(BlenderRNA *brna)
 	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_update");
 }
 
+static void rna_def_constraint_object_solver(BlenderRNA *brna)
+{
+	StructRNA *srna;
+	PropertyRNA *prop;
+
+	srna= RNA_def_struct(brna, "ObjectSolverConstraint", "Constraint");
+	RNA_def_struct_ui_text(srna, "Object Solver Constraint", "Lock motion to the reconstructed object movement");
+	RNA_def_struct_sdna_from(srna, "bObjectSolverConstraint", "data");
+
+	/* movie clip */
+	prop= RNA_def_property(srna, "clip", PROP_POINTER, PROP_NONE);
+	RNA_def_property_pointer_sdna(prop, NULL, "clip");
+	RNA_def_property_ui_text(prop, "Movie Clip", "Movie Clip to get tracking data from");
+	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+
+	/* use default clip */
+	prop= RNA_def_property(srna, "use_active_clip", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", CAMERASOLVER_ACTIVECLIP);
+	RNA_def_property_ui_text(prop, "Active Clip", "Use active clip defined in scene");
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_update");
+
+	/* object */
+	prop= RNA_def_property(srna, "object", PROP_STRING, PROP_NONE);
+	RNA_def_property_string_sdna(prop, NULL, "object");
+	RNA_def_property_ui_text(prop, "Object", "Movie tracking object to follow");
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+}
+
 /* base struct for constraints */
 void RNA_def_constraint(BlenderRNA *brna)
 {
@@ -2203,6 +2241,7 @@ void RNA_def_constraint(BlenderRNA *brna)
 	rna_def_constraint_pivot(brna);
 	rna_def_constraint_follow_track(brna);
 	rna_def_constraint_camera_solver(brna);
+	rna_def_constraint_object_solver(brna);
 }
 
 #endif
diff --git a/source/blender/makesrna/intern/rna_tracking.c b/source/blender/makesrna/intern/rna_tracking.c
index f06c020400d..6332cd40bca 100644
--- a/source/blender/makesrna/intern/rna_tracking.c
+++ b/source/blender/makesrna/intern/rna_tracking.c
@@ -90,43 +90,87 @@ static void rna_tracking_defaultSettings_searchUpdate(Main *UNUSED(bmain), Scene
 static void rna_tracking_tracks_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
 {
 	MovieClip *clip= (MovieClip*)ptr->id.data;
+
 	rna_iterator_listbase_begin(iter, &clip->tracking.tracks, NULL);
 }
 
-static void rna_tracking_tracks_add(MovieTracking *tracking, int frame, int number)
+static void rna_tracking_objects_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
 {
-	int a;
+	MovieClip *clip= (MovieClip*)ptr->id.data;
 
-	for(a= 0; a<number; a++)
-		BKE_tracking_add_track(tracking, 0, 0, frame, 1, 1);
+	rna_iterator_listbase_begin(iter, &clip->tracking.objects, NULL);
+}
 
-	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+static int rna_tracking_active_object_index_get(PointerRNA *ptr)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	return clip->tracking.objectnr;
+}
+
+static void rna_tracking_active_object_index_set(PointerRNA *ptr, int value)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	clip->tracking.objectnr= value;
+}
+
+static void rna_tracking_active_object_index_range(PointerRNA *ptr, int *min, int *max)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	*min= 0;
+	*max= clip->tracking.tot_object-1;
+	*max= MAX2(0, *max);
 }
 
 static PointerRNA rna_tracking_active_track_get(PointerRNA *ptr)
 {
 	MovieClip *clip= (MovieClip*)ptr->id.data;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(&clip->tracking);
 
-	return rna_pointer_inherit_refine(ptr, &RNA_MovieTrackingTrack, clip->tracking.act_track);
+	return rna_pointer_inherit_refine(ptr, &RNA_MovieTrackingTrack, act_track);
 }
 
 static void rna_tracking_active_track_set(PointerRNA *ptr, PointerRNA value)
 {
 	MovieClip *clip= (MovieClip*)ptr->id.data;
 	MovieTrackingTrack *track= (MovieTrackingTrack *)value.data;
-	int index= BLI_findindex(&clip->tracking.tracks, track);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
+	int index= BLI_findindex(tracksbase, track);
 
-	if(index>=0) clip->tracking.act_track= track;
-	else clip->tracking.act_track= NULL;
+	if(index>=0)
+		clip->tracking.act_track= track;
+	else
+		clip->tracking.act_track= NULL;
 }
 
 void rna_trackingTrack_name_set(PointerRNA *ptr, const char *value)
 {
 	MovieClip *clip= (MovieClip *)ptr->id.data;
+	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingTrack *track= (MovieTrackingTrack *)ptr->data;
+	ListBase *tracksbase= &tracking->tracks;
+
 	BLI_strncpy(track->name, value, sizeof(track->name));
 
-	BKE_track_unique_name(&clip->tracking, track);
+	/* TODO: it's a bit difficult to find list track came from knowing just
+	         movie clip ID and MovieTracking structure, so keep this naive
+			 search for a while */
+	if(BLI_findindex(tracksbase, track) < 0) {
+		MovieTrackingObject *object= tracking->objects.first;
+
+		while(object) {
+			if(BLI_findindex(&object->tracks, track)) {
+				tracksbase= &object->tracks;
+				break;
+			}
+
+			object= object->next;
+		}
+	}
+
+	BKE_track_unique_name(tracksbase, track);
 }
 
 static int rna_trackingTrack_select_get(PointerRNA *ptr)
@@ -257,8 +301,94 @@ static void rna_tracking_flushUpdate(Main *UNUSED(bmain), Scene *scene, PointerR
 	DAG_id_tag_update(&clip->id, 0);
 }
 
+static void rna_trackingObject_tracks_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+	MovieTrackingObject *object= (MovieTrackingObject* )ptr->data;
+
+	rna_iterator_listbase_begin(iter, &object->tracks, NULL);
+}
+
+static PointerRNA rna_tracking_active_object_get(PointerRNA *ptr)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+	MovieTrackingObject *object= BLI_findlink(&clip->tracking.objects, clip->tracking.objectnr);
+
+	return rna_pointer_inherit_refine(ptr, &RNA_MovieTrackingObject, object);
+}
+
+static void rna_tracking_active_object_set(PointerRNA *ptr, PointerRNA value)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+	MovieTrackingObject *object= (MovieTrackingObject *)value.data;
+	int index= BLI_findindex(&clip->tracking.objects, object);
+
+	if(index>=0) clip->tracking.objectnr= index;
+	else clip->tracking.objectnr= 0;
+}
+
+void rna_trackingObject_name_set(PointerRNA *ptr, const char *value)
+{
+	MovieClip *clip= (MovieClip *)ptr->id.data;
+	MovieTrackingObject *object= (MovieTrackingObject *)ptr->data;
+
+	BLI_strncpy(object->name, value, sizeof(object->name));
+
+	BKE_tracking_object_unique_name(&clip->tracking, object);
+}
+
 /* API */
 
+static void add_tracks_to_base(MovieClip *clip, MovieTracking *tracking, ListBase *tracksbase, int frame, int number)
+{
+	int a, width, height;
+	MovieClipUser user= {0};
+
+	user.framenr= 1;
+
+	BKE_movieclip_get_size(clip, &user, &width, &height);
+
+	for(a= 0; a<number; a++)
+		BKE_tracking_add_track(tracking, tracksbase, 0, 0, frame, width, height);
+}
+
+static void rna_tracking_tracks_add(ID *id, MovieTracking *tracking, int frame, int number)
+{
+	MovieClip *clip= (MovieClip *) id;
+
+	add_tracks_to_base(clip, tracking, &tracking->tracks, frame, number);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+}
+
+static void rna_trackingObject_tracks_add(ID *id, MovieTrackingObject *object, int frame, int number)
+{
+	MovieClip *clip= (MovieClip *) id;
+	ListBase *tracksbase= &object->tracks;
+
+	if(object->flag&TRACKING_OBJECT_CAMERA)
+		tracksbase= &clip->tracking.tracks;
+
+	add_tracks_to_base(clip, &clip->tracking, tracksbase, frame, number);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+}
+
+static MovieTrackingObject *rna_tracking_object_new(MovieTracking *tracking, const char *name)
+{
+	MovieTrackingObject *object= BKE_tracking_new_object(tracking, name);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+
+	return object;
+}
+
+void rna_tracking_object_remove(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	BKE_tracking_remove_object(tracking, object);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+}
+
 static MovieTrackingMarker *rna_trackingTrack_marker_find_frame(MovieTrackingTrack *track, int framenr)
 {
 	return BKE_tracking_get_marker(track, framenr);
@@ -889,18 +1019,18 @@ static void rna_def_trackingReconstruction(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Cameras", "Collection of solved cameras");
 }
 
-static void rna_def_trackingTracks(BlenderRNA *brna, PropertyRNA *cprop)
+static void rna_def_trackingTracks(BlenderRNA *brna)
 {
 	StructRNA *srna;
 	FunctionRNA *func;
 	PropertyRNA *prop;
 
-	RNA_def_property_srna(cprop, "MovieTrackingTracks");
 	srna= RNA_def_struct(brna, "MovieTrackingTracks", NULL);
 	RNA_def_struct_sdna(srna, "MovieTracking");
 	RNA_def_struct_ui_text(srna, "Movie Tracks", "Collection of movie tracking tracks");
 
 	func= RNA_def_function(srna, "add", "rna_tracking_tracks_add");
+	RNA_def_function_flag(func, FUNC_USE_SELF_ID);
 	RNA_def_function_ui_description(func, "Add a number of tracks to this movie clip");
 	RNA_def_int(func, "frame", 1, MINFRAME, MAXFRAME, "Frame", "Frame number to add tracks on", MINFRAME, MAXFRAME);
 	RNA_def_int(func, "count", 1, 0, INT_MAX, "Number", "Number of tracks to add to the movie clip", 0, INT_MAX);
@@ -913,6 +1043,96 @@ static void rna_def_trackingTracks(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_property_ui_text(prop, "Active Track", "Active track in this tracking data object");
 }
 
+static void rna_def_trackingObjectTracks(BlenderRNA *brna)
+{
+	StructRNA *srna;
+	FunctionRNA *func;
+	PropertyRNA *prop;
+
+	srna= RNA_def_struct(brna, "MovieTrackingObjectTracks", NULL);
+	RNA_def_struct_sdna(srna, "MovieTrackingObject");
+	RNA_def_struct_ui_text(srna, "Movie Tracks", "Collection of movie tracking tracks");
+
+	func= RNA_def_function(srna, "add", "rna_trackingObject_tracks_add");
+	RNA_def_function_flag(func, FUNC_USE_SELF_ID);
+	RNA_def_function_ui_description(func, "Add a number of tracks to this movie clip");
+	RNA_def_int(func, "frame", 1, MINFRAME, MAXFRAME, "Frame", "Frame number to add tracks on", MINFRAME, MAXFRAME);
+	RNA_def_int(func, "count", 1, 0, INT_MAX, "Number", "Number of tracks to add to the movie clip", 0, INT_MAX);
+
+	/* active track */
+	prop= RNA_def_property(srna, "active", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "MovieTrackingTrack");
+	RNA_def_property_pointer_funcs(prop, "rna_tracking_active_track_get", "rna_tracking_active_track_set", NULL, NULL);
+	RNA_def_property_flag(prop, PROP_EDITABLE|PROP_NEVER_UNLINK);
+	RNA_def_property_ui_text(prop, "Active Track", "Active track in this tracking data object");
+}
+
+static void rna_def_trackingObject(BlenderRNA *brna)
+{
+	StructRNA *srna;
+	PropertyRNA *prop;
+
+	srna= RNA_def_struct(brna, "MovieTrackingObject", NULL);
+	RNA_def_struct_ui_text(srna, "Movie tracking object data", "Match-moving object tracking and reconstruction data");
+
+	/* name */
+	prop= RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
+	RNA_def_property_ui_text(prop, "Name", "Unique name of object");
+	RNA_def_property_string_funcs(prop, NULL, NULL, "rna_trackingObject_name_set");
+	RNA_def_property_string_maxlength(prop, MAX_ID_NAME);
+	RNA_def_property_update(prop, NC_MOVIECLIP|NA_EDITED, NULL);
+	RNA_def_struct_name_property(srna, prop);
+
+	/* is_camera */
+	prop= RNA_def_property(srna, "is_camera", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", TRACKING_OBJECT_CAMERA);
+	RNA_def_property_ui_text(prop, "Camera", "Object is used for camera tracking");
+	RNA_def_property_update(prop, NC_MOVIECLIP|ND_DISPLAY, NULL);
+
+	/* tracks */
+	prop= RNA_def_property(srna, "tracks", PROP_COLLECTION, PROP_NONE);
+	RNA_def_property_collection_funcs(prop, "rna_trackingObject_tracks_begin", "rna_iterator_listbase_next", "rna_iterator_listbase_end", "rna_iterator_listbase_get", 0, 0, 0, 0);
+	RNA_def_property_struct_type(prop, "MovieTrackingTrack");
+	RNA_def_property_ui_text(prop, "Tracks", "Collection of tracks in this tracking data object");
+	RNA_def_property_srna(prop, "MovieTrackingObjectTracks");
+
+	/* reconstruction */
+	prop= RNA_def_property(srna, "reconstruction", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "MovieTrackingReconstruction");
+}
+
+static void rna_def_trackingObjects(BlenderRNA *brna, PropertyRNA *cprop)
+{
+	StructRNA *srna;
+	PropertyRNA *prop;
+
+	FunctionRNA *func;
+	PropertyRNA *parm;
+
+	RNA_def_property_srna(cprop, "MovieTrackingObjects");
+	srna= RNA_def_struct(brna, "MovieTrackingObjects", NULL);
+	RNA_def_struct_sdna(srna, "MovieTracking");
+	RNA_def_struct_ui_text(srna, "Movie Objects", "Collection of movie trackingobjects");
+
+	func= RNA_def_function(srna, "new", "rna_tracking_object_new");
+	RNA_def_function_ui_description(func, "Add tracking object to this movie clip");
+	RNA_def_string(func, "name", "", 0, "", "Name of new object");
+	parm= RNA_def_pointer(func, "object", "MovieTrackingObject", "", "New motion tracking object");
+	RNA_def_function_return(func, parm);
+
+	func= RNA_def_function(srna, "remove", "rna_tracking_object_remove");
+	RNA_def_function_ui_description(func, "Remove tracking object from this movie clip");
+	parm= RNA_def_pointer(func, "object", "MovieTrackingObject", "", "Motion tracking object to be removed");
+
+	/* active object */
+	prop= RNA_def_property(srna, "active", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "MovieTrackingObject");
+	RNA_def_property_pointer_funcs(prop, "rna_tracking_active_object_get", "rna_tracking_active_object_set", NULL, NULL);
+	RNA_def_property_flag(prop, PROP_EDITABLE|PROP_NEVER_UNLINK);
+	RNA_def_property_ui_text(prop, "Active Object", "Active object in this tracking data object");
+}
+
 static void rna_def_tracking(BlenderRNA *brna)
 {
 	StructRNA *srna;
@@ -921,8 +1141,11 @@ static void rna_def_tracking(BlenderRNA *brna)
 	rna_def_trackingSettings(brna);
 	rna_def_trackingCamera(brna);
 	rna_def_trackingTrack(brna);
+	rna_def_trackingTracks(brna);
+	rna_def_trackingObjectTracks(brna);
 	rna_def_trackingStabilization(brna);
 	rna_def_trackingReconstruction(brna);
+	rna_def_trackingObject(brna);
 
 	srna= RNA_def_struct(brna, "MovieTracking", NULL);
 	RNA_def_struct_ui_text(srna, "Movie tracking data", "Match-moving data for tracking");
@@ -940,7 +1163,7 @@ static void rna_def_tracking(BlenderRNA *brna)
 	RNA_def_property_collection_funcs(prop, "rna_tracking_tracks_begin", "rna_iterator_listbase_next", "rna_iterator_listbase_end", "rna_iterator_listbase_get", 0, 0, 0, 0);
 	RNA_def_property_struct_type(prop, "MovieTrackingTrack");
 	RNA_def_property_ui_text(prop, "Tracks", "Collection of tracks in this tracking data object");
-	rna_def_trackingTracks(brna, prop);
+	RNA_def_property_srna(prop, "MovieTrackingTracks");
 
 	/* stabilization */
 	prop= RNA_def_property(srna, "stabilization", PROP_POINTER, PROP_NONE);
@@ -949,6 +1172,20 @@ static void rna_def_tracking(BlenderRNA *brna)
 	/* reconstruction */
 	prop= RNA_def_property(srna, "reconstruction", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "MovieTrackingReconstruction");
+
+	/* objects */
+	prop= RNA_def_property(srna, "objects", PROP_COLLECTION, PROP_NONE);
+	RNA_def_property_collection_funcs(prop, "rna_tracking_objects_begin", "rna_iterator_listbase_next", "rna_iterator_listbase_end", "rna_iterator_listbase_get", 0, 0, 0, 0);
+	RNA_def_property_struct_type(prop, "MovieTrackingObject");
+	RNA_def_property_ui_text(prop, "Objects", "Collection of objects in this tracking data object");
+	rna_def_trackingObjects(brna, prop);
+
+	/* active object index */
+	prop= RNA_def_property(srna, "active_object_index", PROP_INT, PROP_NONE);
+	RNA_def_property_int_sdna(prop, NULL, "objectnr");
+	RNA_def_property_int_funcs(prop, "rna_tracking_active_object_index_get", "rna_tracking_active_object_index_set", "rna_tracking_active_object_index_range");
+	RNA_def_property_ui_text(prop, "Active Object Index", "Index of active object");
+	RNA_def_property_update(prop, NC_MOVIECLIP|ND_DISPLAY, NULL);
 }
 
 void RNA_def_tracking(BlenderRNA *brna)