Tracking: Split tracking_ops into smaller files

The file started to be rather really huge and difficult to follow.
Should be no functional changes.

1 files changed, 860 insertions, 0 deletions

diff --git a/source/blender/editors/space_clip/tracking_ops_orient.c b/source/blender/editors/space_clip/tracking_ops_orient.c
new file mode 100644
index 00000000000..f81180d65a9
--- /dev/null
+++ b/source/blender/editors/space_clip/tracking_ops_orient.c
@@ -0,0 +1,860 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2016 Blender Foundation.
+ * All rights reserved.
+ *
+ *
+ * Contributor(s): Blender Foundation,
+ *                 Sergey Sharybin
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/space_clip/tracking_ops_orient.c
+ *  \ingroup spclip
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_constraint_types.h"
+#include "DNA_object_types.h"   /* SELECT */
+#include "DNA_screen_types.h"
+#include "DNA_space_types.h"
+
+#include "BLI_utildefines.h"
+#include "BLI_math.h"
+
+#include "BKE_context.h"
+#include "BKE_constraint.h"
+#include "BKE_tracking.h"
+#include "BKE_global.h"
+#include "BKE_depsgraph.h"
+#include "BKE_object.h"
+#include "BKE_report.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_clip.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "clip_intern.h"
+
+/********************** set origin operator *********************/
+
+static Object *get_camera_with_movieclip(Scene *scene, MovieClip *clip)
+{
+	Object *camera = scene->camera;
+
+	if (camera != NULL &&
+	    BKE_object_movieclip_get(scene, camera, false) == clip)
+	{
+		return camera;
+	}
+
+	for (Base *base = scene->base.first;
+	     base != NULL;
+	     base = base->next)
+	{
+		if (base->object->type == OB_CAMERA) {
+			if (BKE_object_movieclip_get(scene, base->object, false) == clip) {
+				camera = base->object;
+				break;
+			}
+		}
+	}
+
+	return camera;
+}
+
+static Object *get_orientation_object(bContext *C)
+{
+	Scene *scene = CTX_data_scene(C);
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	MovieTracking *tracking = &clip->tracking;
+	MovieTrackingObject *tracking_object = BKE_tracking_object_get_active(tracking);
+	Object *object = NULL;
+
+	if (tracking_object->flag & TRACKING_OBJECT_CAMERA) {
+		object = get_camera_with_movieclip(scene, clip);
+	}
+	else {
+		object = OBACT;
+	}
+
+	if (object != NULL && object->parent != NULL) {
+		object = object->parent;
+	}
+
+	return object;
+}
+
+static int set_orientation_poll(bContext *C)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	if (sc != NULL) {
+		Scene *scene = CTX_data_scene(C);
+		MovieClip *clip = ED_space_clip_get_clip(sc);
+		if (clip != NULL) {
+			MovieTracking *tracking = &clip->tracking;
+			MovieTrackingObject *tracking_object = BKE_tracking_object_get_active(tracking);
+			if (tracking_object->flag & TRACKING_OBJECT_CAMERA) {
+				return true;
+			}
+			else {
+				return OBACT != NULL;
+			}
+		}
+	}
+	return false;
+}
+
+static int count_selected_bundles(bContext *C)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	ListBase *tracksbase = BKE_tracking_get_active_tracks(&clip->tracking);
+	int tot = 0;
+	for (MovieTrackingTrack *track = tracksbase->first;
+	     track != NULL;
+	     track = track->next)
+	{
+		if (TRACK_VIEW_SELECTED(sc, track) && (track->flag & TRACK_HAS_BUNDLE)) {
+			tot++;
+		}
+	}
+	return tot;
+}
+
+static void object_solver_inverted_matrix(Scene *scene,
+                                          Object *ob,
+                                          float invmat[4][4])
+{
+	bool found = false;
+	for (bConstraint *con = ob->constraints.first;
+	     con != NULL;
+	     con = con->next)
+	{
+		const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
+		if (cti == NULL) {
+			continue;
+		}
+		if (cti->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
+			bObjectSolverConstraint *data = (bObjectSolverConstraint *)con->data;
+			if (!found) {
+				Object *cam = data->camera ? data->camera : scene->camera;
+				BKE_object_where_is_calc_mat4(scene, cam, invmat);
+			}
+			mul_m4_m4m4(invmat, invmat, data->invmat);
+			found = true;
+		}
+	}
+	if (found) {
+		invert_m4(invmat);
+	}
+	else {
+		unit_m4(invmat);
+	}
+}
+
+static Object *object_solver_camera(Scene *scene, Object *ob)
+{
+	for (bConstraint *con = ob->constraints.first;
+	     con != NULL;
+	     con = con->next)
+	{
+		const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
+		if (cti == NULL) {
+			continue;
+		}
+		if (cti->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
+			bObjectSolverConstraint *data = (bObjectSolverConstraint *)con->data;
+			return (data->camera != NULL) ? data->camera : scene->camera;
+		}
+	}
+	return NULL;
+}
+
+static int set_origin_exec(bContext *C, wmOperator *op)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	MovieTracking *tracking = &clip->tracking;
+	Scene *scene = CTX_data_scene(C);
+	Object *camera = get_camera_with_movieclip(scene, clip);
+	int selected_count = count_selected_bundles(C);
+
+	if (selected_count == 0) {
+		BKE_report(op->reports,
+		           RPT_ERROR,
+		           "At least one track with bundle should be selected to "
+		           "define origin position");
+
+		return OPERATOR_CANCELLED;
+	}
+
+	Object *object = get_orientation_object(C);
+	if (object == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "No object to apply orientation on");
+		return OPERATOR_CANCELLED;
+	}
+
+	MovieTrackingObject *tracking_object = BKE_tracking_object_get_active(tracking);
+	ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, tracking_object);
+
+	float median[3] = {0.0f, 0.0f, 0.0f};
+	zero_v3(median);
+	for (MovieTrackingTrack *track = tracksbase->first;
+	     track != NULL;
+	     track = track->next)
+	{
+		if (TRACK_VIEW_SELECTED(sc, track) &&
+		    (track->flag & TRACK_HAS_BUNDLE))
+		{
+			add_v3_v3(median, track->bundle_pos);
+		}
+	}
+	mul_v3_fl(median, 1.0f / selected_count);
+
+	float mat[4][4], vec[3];
+	BKE_tracking_get_camera_object_matrix(scene, camera, mat);
+	mul_v3_m4v3(vec, mat, median);
+
+	if (tracking_object->flag & TRACKING_OBJECT_CAMERA) {
+		sub_v3_v3(object->loc, vec);
+	}
+	else {
+		object_solver_inverted_matrix(scene, object, mat);
+		mul_v3_m4v3(vec, mat, vec);
+		copy_v3_v3(object->loc, vec);
+	}
+
+	DAG_id_tag_update(&clip->id, 0);
+	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);
+
+	return OPERATOR_FINISHED;
+}
+
+void CLIP_OT_set_origin(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Set Origin";
+	ot->description = "Set active marker as origin by moving camera (or its parent if present) in 3D space";
+	ot->idname = "CLIP_OT_set_origin";
+
+	/* api callbacks */
+	ot->exec = set_origin_exec;
+	ot->poll = set_orientation_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_boolean(ot->srna, "use_median", 0, "Use Median",
+	                "Set origin to median point of selected bundles");
+}
+
+/********************** set floor operator *********************/
+
+static void set_axis(Scene *scene,
+                     Object *ob,
+                     MovieClip *clip,
+                     MovieTrackingObject *tracking_object,
+                     MovieTrackingTrack *track,
+                     char axis)
+{
+	Object *camera = get_camera_with_movieclip(scene, clip);
+	const bool is_camera = (tracking_object->flag & TRACKING_OBJECT_CAMERA) != 0;
+	bool flip = false;
+	float mat[4][4], vec[3], obmat[4][4], dvec[3];
+
+	BKE_object_to_mat4(ob, obmat);
+
+	BKE_tracking_get_camera_object_matrix(scene, camera, mat);
+	mul_v3_m4v3(vec, mat, track->bundle_pos);
+	copy_v3_v3(dvec, vec);
+
+	if (!is_camera) {
+		float imat[4][4];
+
+		object_solver_inverted_matrix(scene, ob, imat);
+		mul_v3_m4v3(vec, imat, vec);
+
+		invert_m4_m4(imat, obmat);
+		mul_v3_m4v3(dvec, imat, vec);
+
+		sub_v3_v3(vec, obmat[3]);
+	}
+
+	if (len_squared_v2(vec) < (1e-3f * 1e-3f)) {
+		return;
+	}
+
+	unit_m4(mat);
+
+	if (axis == 'X') {
+		if (fabsf(dvec[1]) < 1e-3f) {
+			flip = true;
+
+			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);
+
+			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(dvec[0]) < 1e-3f) {
+			flip = true;
+
+			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);
+
+			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]);
+			}
+		}
+	}
+
+	normalize_v3(mat[0]);
+	normalize_v3(mat[1]);
+	normalize_v3(mat[2]);
+
+	if (is_camera) {
+		invert_m4(mat);
+
+		mul_m4_m4m4(mat, mat, obmat);
+	}
+	else {
+		if (!flip) {
+			float lmat[4][4], ilmat[4][4], rmat[3][3];
+
+			BKE_object_rot_to_mat3(ob, rmat, true);
+			invert_m3(rmat);
+			mul_m4_m4m3(mat, mat, rmat);
+
+			unit_m4(lmat);
+			copy_v3_v3(lmat[3], obmat[3]);
+			invert_m4_m4(ilmat, lmat);
+
+			mul_m4_series(mat, lmat, mat, ilmat, obmat);
+		}
+		else {
+			mul_m4_m4m4(mat, obmat, mat);
+		}
+	}
+
+	BKE_object_apply_mat4(ob, mat, 0, 0);
+}
+
+static int set_plane_exec(bContext *C, wmOperator *op)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	Scene *scene = CTX_data_scene(C);
+	MovieTracking *tracking = &clip->tracking;
+	MovieTrackingObject *tracking_object;
+	MovieTrackingTrack *track, *axis_track = NULL, *act_track;
+	ListBase *tracksbase;
+	Object *object;
+	Object *camera = get_camera_with_movieclip(scene, clip);
+	int tot = 0;
+	float vec[3][3], mat[4][4], obmat[4][4], newmat[4][4], orig[3] = {0.0f, 0.0f, 0.0f};
+	int plane = RNA_enum_get(op->ptr, "plane");
+	float rot[4][4] = {{0.0f, 0.0f, -1.0f, 0.0f},
+	                   {0.0f, 1.0f, 0.0f, 0.0f},
+	                   {1.0f, 0.0f, 0.0f, 0.0f},
+	                   {0.0f, 0.0f, 0.0f, 1.0f}};  /* 90 degrees Y-axis rotation matrix */
+
+	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;
+	}
+
+	tracking_object = BKE_tracking_object_get_active(tracking);
+	tracksbase = BKE_tracking_object_get_tracks(tracking, tracking_object);
+	act_track = BKE_tracking_track_get_active(tracking);
+
+	object = get_orientation_object(C);
+	if (object == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "No object to apply orientation on");
+		return OPERATOR_CANCELLED;
+	}
+
+	BKE_tracking_get_camera_object_matrix(scene, camera, mat);
+
+	/* Get 3 bundles to use as reference. */
+	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 == act_track) {
+				copy_v3_v3(orig, vec[tot]);
+			}
+			else {
+				axis_track = track;
+			}
+			tot++;
+		}
+		track = track->next;
+	}
+
+	sub_v3_v3(vec[1], vec[0]);
+	sub_v3_v3(vec[2], vec[0]);
+
+	/* Construct ortho-normal basis. */
+	unit_m4(mat);
+	if (plane == 0) { /* floor */
+		cross_v3_v3v3(mat[0], vec[1], vec[2]);
+		copy_v3_v3(mat[1], vec[1]);
+		cross_v3_v3v3(mat[2], mat[0], mat[1]);
+	}
+	else if (plane == 1) { /* wall */
+		cross_v3_v3v3(mat[2], vec[1], vec[2]);
+		copy_v3_v3(mat[1], vec[1]);
+		cross_v3_v3v3(mat[0], mat[1], mat[2]);
+	}
+
+	normalize_v3(mat[0]);
+	normalize_v3(mat[1]);
+	normalize_v3(mat[2]);
+
+	/* Move to origin point. */
+	mat[3][0] = orig[0];
+	mat[3][1] = orig[1];
+	mat[3][2] = orig[2];
+
+	if (tracking_object->flag & TRACKING_OBJECT_CAMERA) {
+		invert_m4(mat);
+
+		BKE_object_to_mat4(object, obmat);
+		mul_m4_m4m4(mat, mat, obmat);
+		mul_m4_m4m4(newmat, rot, mat);
+		BKE_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, rot, mat);
+			BKE_object_apply_mat4(object, newmat, 0, 0);
+		}
+	}
+	else {
+		BKE_object_apply_mat4(object, mat, 0, 0);
+	}
+
+	BKE_object_where_is_calc(scene, object);
+	set_axis(scene, object, clip, tracking_object, axis_track, 'X');
+
+	DAG_id_tag_update(&clip->id, 0);
+	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);
+
+	return OPERATOR_FINISHED;
+}
+
+void CLIP_OT_set_plane(wmOperatorType *ot)
+{
+	static EnumPropertyItem plane_items[] = {
+		{0, "FLOOR", 0, "Floor", "Set floor plane"},
+		{1, "WALL", 0, "Wall", "Set wall plane"},
+		{0, NULL, 0, NULL, NULL}
+	};
+
+	/* identifiers */
+	ot->name = "Set Plane";
+	ot->description = "Set plane based on 3 selected bundles by moving camera "
+	                  "(or its parent if present) in 3D space";
+	ot->idname = "CLIP_OT_set_plane";
+
+	/* api callbacks */
+	ot->exec = set_plane_exec;
+	ot->poll = set_orientation_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_enum(ot->srna, "plane", plane_items, 0, "Plane",
+	             "Plane to be used for orientation");
+}
+
+/********************** set axis operator *********************/
+
+static int set_axis_exec(bContext *C, wmOperator *op)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	MovieTracking *tracking = &clip->tracking;
+	MovieTrackingObject *tracking_object = BKE_tracking_object_get_active(tracking);
+	Scene *scene = CTX_data_scene(C);
+	Object *object;
+	int axis = RNA_enum_get(op->ptr, "axis");
+
+	if (count_selected_bundles(C) != 1) {
+		BKE_report(op->reports,
+		           RPT_ERROR,
+		           "Single track with bundle should be selected to define axis");
+		return OPERATOR_CANCELLED;
+	}
+
+	object = get_orientation_object(C);
+	if (object == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "No object to apply orientation on");
+		return OPERATOR_CANCELLED;
+	}
+
+	ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking,
+	                                                      tracking_object);
+	MovieTrackingTrack *track = tracksbase->first;
+	while (track) {
+		if (TRACK_VIEW_SELECTED(sc, track) &&
+		    (track->flag & TRACK_HAS_BUNDLE))
+		{
+			break;
+		}
+		track = track->next;
+	}
+
+	set_axis(scene, object, clip, tracking_object, track, axis == 0 ? 'X' : 'Y');
+
+	DAG_id_tag_update(&clip->id, 0);
+	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);
+
+	return OPERATOR_FINISHED;
+}
+
+void CLIP_OT_set_axis(wmOperatorType *ot)
+{
+	static EnumPropertyItem axis_actions[] = {
+		{0, "X", 0, "X", "Align bundle align X axis"},
+		{1, "Y", 0, "Y", "Align bundle align Y axis"},
+		{0, NULL, 0, NULL, NULL}
+	};
+
+	/* identifiers */
+	ot->name = "Set Axis";
+	ot->description = "Set direction of scene axis rotating camera "
+	                  "(or its parent if present) and assume selected track "
+	                  "lies on real axis, joining it with the origin";
+	ot->idname = "CLIP_OT_set_axis";
+
+	/* api callbacks */
+	ot->exec = set_axis_exec;
+	ot->poll = set_orientation_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_enum(ot->srna, "axis", axis_actions, 0, "Axis",
+	             "Axis to use to align bundle along");
+}
+
+/********************** set scale operator *********************/
+
+static int do_set_scale(bContext *C,
+                        wmOperator *op,
+                        bool scale_solution,
+                        bool apply_scale)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	MovieTracking *tracking = &clip->tracking;
+	MovieTrackingObject *tracking_object = BKE_tracking_object_get_active(tracking);
+	MovieTrackingTrack *track;
+	Scene *scene = CTX_data_scene(C);
+	Object *object = NULL;
+	Object *camera = get_camera_with_movieclip(scene, clip);
+	ListBase *tracksbase = BKE_tracking_get_active_tracks(tracking);
+	int tot = 0;
+	float vec[2][3], mat[4][4], scale;
+	float dist = RNA_float_get(op->ptr, "distance");
+
+	if (count_selected_bundles(C) != 2) {
+		BKE_report(op->reports,
+		           RPT_ERROR,
+		           "Two tracks with bundles should be selected to set scale");
+		return OPERATOR_CANCELLED;
+	}
+
+	if (!scale_solution && !apply_scale) {
+		object = get_orientation_object(C);
+		if (object == NULL) {
+			BKE_report(op->reports,
+			           RPT_ERROR,
+			           "No object to apply orientation on");
+			return OPERATOR_CANCELLED;
+		}
+	}
+
+	BKE_tracking_get_camera_object_matrix(scene, camera, mat);
+
+	track = tracksbase->first;
+	while (track) {
+		if (TRACK_VIEW_SELECTED(sc, track)) {
+			mul_v3_m4v3(vec[tot], mat, track->bundle_pos);
+			tot++;
+		}
+		track = track->next;
+	}
+
+	sub_v3_v3(vec[0], vec[1]);
+
+	if (len_v3(vec[0]) > 1e-5f) {
+		scale = dist / len_v3(vec[0]);
+		if (apply_scale) {
+			/* Apply scale on reconstructed scene itself. */
+			MovieTrackingReconstruction *reconstruction =
+			        BKE_tracking_get_active_reconstruction(tracking);
+			MovieReconstructedCamera *reconstructed_cameras;
+			int i;
+
+			for (track = tracksbase->first; track; track = track->next) {
+				mul_v3_fl(track->bundle_pos, scale);
+			}
+
+			reconstructed_cameras = reconstruction->cameras;
+			for (i = 0; i < reconstruction->camnr; i++) {
+				mul_v3_fl(reconstructed_cameras[i].mat[3], scale);
+			}
+
+			WM_event_add_notifier(C, NC_MOVIECLIP | NA_EVALUATED, clip);
+			WM_event_add_notifier(C, NC_OBJECT | ND_TRANSFORM, NULL);
+		}
+		else {
+			if (tracking_object->flag & TRACKING_OBJECT_CAMERA) {
+				mul_v3_fl(object->size, scale);
+				mul_v3_fl(object->loc, scale);
+			}
+			else if (!scale_solution) {
+				Object *solver_camera = object_solver_camera(scene, object);
+
+				object->size[0] = object->size[1] = object->size[2] = 1.0f / scale;
+
+				if (solver_camera) {
+					object->size[0] /= solver_camera->size[0];
+					object->size[1] /= solver_camera->size[1];
+					object->size[2] /= solver_camera->size[2];
+				}
+			}
+			else {
+				tracking_object->scale = scale;
+			}
+
+			DAG_id_tag_update(&clip->id, 0);
+
+			if (object)
+				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);
+		}
+	}
+
+	return OPERATOR_FINISHED;
+}
+
+static int set_scale_exec(bContext *C, wmOperator *op)
+{
+	return do_set_scale(C, op, false, false);
+}
+
+static int set_scale_invoke(bContext *C,
+                            wmOperator *op,
+                            const wmEvent *UNUSED(event))
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+
+	if (!RNA_struct_property_is_set(op->ptr, "distance"))
+		RNA_float_set(op->ptr, "distance", clip->tracking.settings.dist);
+
+	return set_scale_exec(C, op);
+}
+
+void CLIP_OT_set_scale(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Set Scale";
+	ot->description = "Set scale of scene by scaling camera (or its parent if present)";
+	ot->idname = "CLIP_OT_set_scale";
+
+	/* api callbacks */
+	ot->exec = set_scale_exec;
+	ot->invoke = set_scale_invoke;
+	ot->poll = set_orientation_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_float(ot->srna, "distance", 0.0f, -FLT_MAX, FLT_MAX,
+	              "Distance", "Distance between selected tracks", -100.0f, 100.0f);
+}
+
+/********************** set solution scale operator *********************/
+
+static int set_solution_scale_poll(bContext *C)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	if (sc != NULL) {
+		MovieClip *clip = ED_space_clip_get_clip(sc);
+		if (clip != NULL) {
+			MovieTracking *tracking = &clip->tracking;
+			MovieTrackingObject *tracking_object =
+			        BKE_tracking_object_get_active(tracking);
+			return (tracking_object->flag & TRACKING_OBJECT_CAMERA) == 0;
+		}
+	}
+	return false;
+}
+
+static int set_solution_scale_exec(bContext *C, wmOperator *op)
+{
+	return do_set_scale(C, op, true, false);
+}
+
+static int set_solution_scale_invoke(bContext *C,
+                                     wmOperator *op,
+                                     const wmEvent *UNUSED(event))
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+
+	if (!RNA_struct_property_is_set(op->ptr, "distance")) {
+		RNA_float_set(op->ptr,
+		              "distance",
+		              clip->tracking.settings.object_distance);
+	}
+
+	return set_solution_scale_exec(C, op);
+}
+
+void CLIP_OT_set_solution_scale(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Set Solution Scale";
+	ot->description = "Set object solution scale using distance between "
+	                  "two selected tracks";
+	ot->idname = "CLIP_OT_set_solution_scale";
+
+	/* api callbacks */
+	ot->exec = set_solution_scale_exec;
+	ot->invoke = set_solution_scale_invoke;
+	ot->poll = set_solution_scale_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_float(ot->srna, "distance", 0.0f, -FLT_MAX, FLT_MAX,
+	              "Distance", "Distance between selected tracks",
+	              -100.0f, 100.0f);
+}
+
+/********************** apply solution scale operator *********************/
+
+static int apply_solution_scale_poll(bContext *C)
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	if (sc != NULL) {
+		MovieClip *clip = ED_space_clip_get_clip(sc);
+		if (clip != NULL) {
+			MovieTracking *tracking = &clip->tracking;
+			MovieTrackingObject *tracking_object =
+			        BKE_tracking_object_get_active(tracking);
+			return (tracking_object->flag & TRACKING_OBJECT_CAMERA) != 0;
+		}
+	}
+	return 0;
+}
+
+static int apply_solution_scale_exec(bContext *C, wmOperator *op)
+{
+	return do_set_scale(C, op, false, true);
+}
+
+static int apply_solution_scale_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
+{
+	SpaceClip *sc = CTX_wm_space_clip(C);
+	MovieClip *clip = ED_space_clip_get_clip(sc);
+	if (!RNA_struct_property_is_set(op->ptr, "distance")) {
+		RNA_float_set(op->ptr, "distance", clip->tracking.settings.dist);
+	}
+	return apply_solution_scale_exec(C, op);
+}
+
+void CLIP_OT_apply_solution_scale(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Apply Solution Scale";
+	ot->description = "Apply scale on solution itself to make distance between "
+	                  "selected tracks equals to desired";
+	ot->idname = "CLIP_OT_apply_solution_scale";
+
+	/* api callbacks */
+	ot->exec = apply_solution_scale_exec;
+	ot->invoke = apply_solution_scale_invoke;
+	ot->poll = apply_solution_scale_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_float(ot->srna, "distance", 0.0f, -FLT_MAX, FLT_MAX,
+	              "Distance", "Distance between selected tracks",
+	              -100.0f, 100.0f);
+}