Fix for incorrect subpixel precision of marker when using track offset

Issue was caused by the way how pattern sampling happens in case of
anchored display: track offset is applying on search buffer which
means offset is rounding to an integer. Fractional pat of offset was
completely ignoring which lead to jumps in pattern buffer.

This was only a visualization issue in track preview widget.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_tracking.h b/source/blender/blenkernel/BKE_tracking.h
index 9bdc96e187d..ebf29fde8ee 100644
--- a/source/blender/blenkernel/BKE_tracking.h
+++ b/source/blender/blenkernel/BKE_tracking.h
@@ -162,7 +162,7 @@ void BKE_tracking_max_undistortion_delta_across_bound(struct MovieTracking *trac
 /* **** Image sampling **** */
 struct ImBuf *BKE_tracking_sample_pattern(int frame_width, int frame_height,
                                           struct ImBuf *struct_ibuf, struct MovieTrackingTrack *track,
-                                          struct MovieTrackingMarker *marker, int use_mask,
+                                          struct MovieTrackingMarker *marker, int from_anchor, int use_mask,
                                           int num_samples_x, int num_samples_y, float pos[2]);
 struct ImBuf *BKE_tracking_get_pattern_imbuf(struct ImBuf *ibuf, struct MovieTrackingTrack *track,
                                              struct MovieTrackingMarker *marker, int anchored, int disable_channels);