Tweaks to plane track

- Do plane re-evaluation only when transform is actually done.
  Before this re-evaluation happened on every mouse move.

- Added a flag "Auto Keyframe" for the plane track, which does:

  * If Auto Keyframe is enabled, then every manual edit of the
    plane will create a new keyframe at current frame and update
    plane motion between current frame and previous/next keyframe.

    This now also implies blending detected motion with neighbor
    keyframes, so there's no jump happening.

    No automatic update on manual point tracks edit will happen.

  * If auto Keyframe is disabled, then no keyframes are adding
    to the plane and every plane tweak will re-evaluate in on
    the whole frame range.

    In this case manual tweaks to point tracks and re-tracking
    them implies plane re-evaluation.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_tracking.h b/source/blender/blenkernel/BKE_tracking.h
index 51946da3857..a860378a35f 100644
--- a/source/blender/blenkernel/BKE_tracking.h
+++ b/source/blender/blenkernel/BKE_tracking.h
@@ -211,6 +211,8 @@ void BKE_tracking_context_free(struct MovieTrackingContext *context);
 void BKE_tracking_context_sync(struct MovieTrackingContext *context);
 void BKE_tracking_context_sync_user(const struct MovieTrackingContext *context, struct MovieClipUser *user);
 bool BKE_tracking_context_step(struct MovieTrackingContext *context);
+void BKE_tracking_context_finish(struct MovieTrackingContext *context);
+
 void BKE_tracking_refine_marker(struct MovieClip *clip, struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker, bool backwards);
 
 /* **** Plane tracking **** */