Initial implementation of overscan renderingoverscan

For now only affects blender internal renderer and viewport.
Currently it's possible to define overscan (in %%) manually
or make it so distortion matches the motrack displacement
model.

Still need to do loads of things in compositor, but it's
not such a bad starting point.

We can even start a branch for this.

Reviewers: dfelinto

Differential Revision: https://developer.blender.org/D462

1 files changed, 14 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 608b0495454..01eb2457ed5 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -52,6 +52,7 @@
 #include "DNA_screen_types.h"
 #include "DNA_sequence_types.h"
 #include "DNA_space_types.h"
+#include "DNA_movieclip_types.h"
 
 #include "BLI_math.h"
 #include "BLI_blenlib.h"
@@ -86,6 +87,8 @@
 #include "BKE_sequencer.h"
 #include "BKE_sound.h"
 #include "BKE_world.h"
+#include "BKE_movieclip.h"
+#include "BKE_tracking.h"
 
 #include "RE_engine.h"
 
@@ -1891,3 +1894,14 @@ int BKE_scene_num_omp_threads(const struct Scene *scene)
 	else
 		return scene->omp_threads;
 }
+
+/* overscan */
+void BKE_scene_update_overscan(Scene *scene)
+{
+	float overscan = scene->r.overscan;
+
+	if (scene->r.detect_overscan && scene->clip)
+		overscan = BKE_tracking_overscan_detect(scene->clip);
+
+	scene->r.overscan = overscan;
+}