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, 6 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_tracking.c b/source/blender/makesrna/intern/rna_tracking.c
index fc71be75d3c..f4c003cfe6c 100644
--- a/source/blender/makesrna/intern/rna_tracking.c
+++ b/source/blender/makesrna/intern/rna_tracking.c
@@ -1460,6 +1460,12 @@ static void rna_def_trackingPlaneTrack(BlenderRNA *brna)
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", SELECT);
 	RNA_def_property_ui_text(prop, "Select", "Plane track is selected");
 	RNA_def_property_update(prop, NC_MOVIECLIP | ND_DISPLAY, NULL);
+
+	/* auto keyframing */
+	prop = RNA_def_property(srna, "use_auto_keying", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", PLANE_TRACK_AUTOKEY);
+	RNA_def_property_ui_text(prop, "Auto Keyframe", "Automatic keyframe insertion when moving plane corners");
+	RNA_def_property_ui_icon(prop, ICON_REC, 0);
 }
 
 static void rna_def_trackingStabilization(BlenderRNA *brna)