Camera tracking integration

===========================

Initial implementation of graph view for movie tracking data.
Used the same UI-side approach as preview region for sequencer:
create region for graph-related information inside clip editor.

It's easier and nicer than trying to hack graph editor which is
currently designed to work with AnimData only. Trying to make it
more abstract to deal with any kind of data doesn't seem be real
benefit for now.

Currently supported displaying per-frame average error and
selected tracks' movement speed (pixels per frame).

Additional changes:
- Collect per-frame average error after solving.
- Split space clip drawing code into different files.
- Added per-frame average solving error.

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/editors/space_clip/clip_intern.h b/source/blender/editors/space_clip/clip_intern.h
index a991566e9a2..c3fee663b54 100644
--- a/source/blender/editors/space_clip/clip_intern.h
+++ b/source/blender/editors/space_clip/clip_intern.h
@@ -102,10 +102,13 @@ void CLIP_OT_stabilize_2d_set_rotation(struct wmOperatorType *ot);
 
 void CLIP_OT_clean_tracks(wmOperatorType *ot);
 
-/* clip_draw.c */
+/* clip_draw_main.c */
 void draw_clip_main(struct SpaceClip *sc, struct ARegion *ar, struct Scene *scene);
 void draw_clip_grease_pencil(struct bContext *C, int onlyv2d);
 
+/* clip_draw_graph.c */
+void draw_clip_graph(struct SpaceClip *sc, struct ARegion *ar, struct Scene *scene);
+
 /* clip_buttons.c */
 void ED_clip_buttons_register(struct ARegionType *art);