- Remove the overly-conservative use of libmv's re-track tracker. The re-track
tracker would take a normal tracker such as TRKLT or KLT or pyramid KLT, and
track from frame 1 to 2, then back from the position found in 2 back to 1.
Then, when the reverse-track doesn't match the original track with high
precision, the track is considered "failed". This is a good approach for
fully automatic reconstruction, but is too conservative for supervised
tracking.
The retrack-tracker will return when fully automatic tracking is added.
- Always solve for (dx, dy) in the TRKLT loop even if the linear system is
ill-conditioned. The client (Blender in this case) can still use the solved
position, even though it is less reliable.
- Expose the pyramid level setting to the tracking UI when in KLT tracking
mode. While it was tempting to hide this detail from the user, in reality it
does more harm than good, since the way tracking fails depends on the pyramid
level. For now, exposing the pyramid details is a good compromise.
- Move the settings for the tracking algorithm, including search window,
tracking algorithm, pyramid levels, etc, into the track object instead of a
global movie clip object.
===========================
Naming refactor: avoid using acquire from movie clip related functions.
This stuff doesn't need releasing, all locks happens in getters,
so using get instead of acquire makes more sense here.
===========================
Some improvements for feature detectors:
- Sort features by score when filtering features by
distance using FAST library.
- Added option to place markers only in areas outlined
by grease pencil.
===========================
Added option to choose which method to use for feature detector: FAST or Moravec
Moravec was supposed to be more "stable", but it collected worse feedback.
before returning back to FAST detector added option to easier toggle between
different detector to compare it's result and find out if we can leave only FAST.
===========================
Support for (un)distortion of images with overscan. Needed for
easier keeping this up-to-date until proper overscan support is
implemented in renderer. Not exposed into UI yet at all.
===========================
Fixed threading issues used to happen when compositor tree
and rendering happened in the same time. Problem was caused
by cached camera intrinsics stored in MovieTracking structure
and access to which wasn't thread-safe.
Now each movie distoriton mode stores it's own camera intrinsics
in it's storage which makes compositor (un)distoriton be totally
thread-safe and this also makes compositor tree faster when
(un)distortion happens on images with different resolution.
===========================
- Merge Movie Distort and Movie Undistort nodes into one node
called Movie Distortion where action (distort/undistort is specified).
- Implemented more proper distortion/undistortion for scaled images.
NOTE: Please, delete distortion nodes with current blender first
before opening files with blender versions from this commit/
===========================
- Bundles and camera path should be displayed correct
when there are several solved cameras in the same scene.
- Added option to use clip from active camera as background
in 3d viewport.
===========================
- Do not disable track when tracking frame-by-frame and tracking
threshold became bad.
- Show anchored image in track preview widget.
- Do not show search area for non-selected and disabled markers.
- Keep anchor constant position when sliding offset parameters in panel.
- Re-enabled occasionally disabled openmp for tracking.
- Renamed clearing operator so now buttons are more clear.
- Updated eigen to the very recent version.
NOTE: I had to enable static aligning again due to it gave crashes
when tracking on my new laptop. I'm not sure it'll work fine
on another systems.
===========================
- Added python method MovieClip.tracking.tracs.add() to add new track.
Marker for this track is getting created on position (0, 0) and it's
keyframed to specified frame number.
- Implemented rotation 2D stabilization. It's supposed to be used in the
following workflow:
* Set tracks which defines location stabilization.
* Choose one track which defines orientation.
* Vector which connects median point of location and track used for
rotation would have the same orientation along all frames.
2D stabilization with rotation can be a bit slow.
- Some internal refactor and code clean-up.
===========================
- Bundling new libmv, issues with undefined uint and C99 functions should gone.
- Changes to Detect operator to match new API.
===========================
- Distortion/undistortion were accidentally swapped in both of grease
pencil calibration and grid.
This was fixed but distortion coefficients should be re-adjusted.
There are some issues with high distortion coefficients but it
came from libmv and until it'll be fixed there nothing really
can be done here.
- Fixed displayed aspect ratio for muted footage when pixel/display
aspect ratio is differ from 1.0 or proxy size is not Full Render,
- Added c-api for image distortion/undistortion, Not used yet.
===========================
Changes into sensor size use case.
There was problem with vertical sensor size which can't actually
affect on things due to we've got fixed image resolution. So
as soon horizontal size gets defined, both of sensor height
and vertical FOV is known and exposing it into UI makes things
difficult to understand.
That's why vertical sensor size was dropped.
Also added pixel aspect to camera settings fo clip editor.
Solver will sue this value rather than value from display
aspect ratio.
This pixel aspect would be copied to render settings after solving
so things should match now between footage, solving anf footage.
===========================
Interpolate camera location and orientation for frames
where's no reconstruction data.
This fixes motion blur compositor node (first and last camera's
position was at origin, so motion vector was totally incorrect).
===========================
- Fixed bug with resetting marker's flag for non-transforming
tracks when canceling transformation.
- Fixed bug with keyframing non-selected tracks when initializing
tracking tools.
- Changed selection policy: now invisible parts of marker
can be selected.
- Added operator redo panel to Clip Editor.
- Set Scale operator now uses operator property for scale.
- Added operator "Clean Tracks" which currently checks if tracks
are tracked long enough and can select bad tracks, delete them
or delete tracking segments which are too short.
===========================
- Made naming in libmv-api more uniform.
- Move aspect ration detection of clip to movieclip.c.
- Remove unused width and height from camera intrinsics function.
- Reconstruction should now deal correct with aspect ratio.
===========================
- Fixed some silly things ni DNA design. Now all
reconstruction data is stored in Tracking->Reconstruction.
Please, re-solve your cameras -- reconstruction data
wouldn't be read from files saved in blender below this
commit.
- RNA accessors for reconstruction data.
- Store average reconstruction error in new reconstruction
structure and show it in clip editor header after
reconstruction.
- Highlight failed to reconstruct frames with red in cache line.
- Added "group" "Failed Tracks" in Select Grouped operator,
Meant to be used for selecting tracks bundles from which
failed to to be solved.
- Hotkey to delete marker: Shift-X.
- Jump to next/prev failed frame operator. Hotkeys are
Ctrl-Shift-Left/Right Arrow.
===========================
- Do not show frame boundary border when stabilization isn't enabled.
- Separate stabilization settings from display in clip editor.
Now clip can contain stabilization data but still be displayed
un-stabilized in clip editor.
- Internal changes in stabilization:
* Use separated location/scale parameters rather than 4x4 matrix.
In some ares "decomposed" data is needed (text draw functions, i.e.).
Also such decomposed data could be used in compositor.
* MovieClip now uses own structure for cache where additional data
can be stored. MovieCache structure now one of properties in
this new structure.
* Get rid of stable image buffer stored in MovieClipStabilization
structure. Pre-created buffer for scaling still stored there.
This helps to keep playback realtime -- re-creating this buffer
introduces ~15% slowdown.
- Added sliders to 2D stabilization panel which controls intensity
of translation/scale which applies on shot.
- Added filter type to Stabilize2D compositor node. Supports nearest,
bilinear and bicubic interpolation.
- After discussion with Sebastian and Francois added new node called
Transformation. It can apply translation, rotation and scale. It's
not the same thing as applying this components separately -- all
transformation is happening inside "canvas". And it should be more
accurate on interpolation and sub-pixel translation.
Need to check order of applying translation/scale/rotation btw.
- Added output sockets to movie clip compositor node. They holds
stabilization data which can be used by Translate or Transform
nodes.
- Minor fix of UI issues in Display panel.
===========================
- Fixed occasional crash caused by conflicting access
to non-threadsafe moviecache. Added lock on movie clip
ibuf acquire level.
- A bit nicer feedback from libmv when doing reconstruction.
Now if all tracks and frames were reconstructed average
error would be reported in "notification area".
If there's something failed to be reconstructed warning
message would appear and failed items would be printed to
the console.
===========================
Changed behavior of 2D stabilization:
- Fixed epic spelling error.
- Neither 3d viewport nor MovieClip compositor input node
are using stable footage now.
- Now one thread lock can be avoided -- stable shot
isn't acquiring from several threads.
- Added compositor noe Distort->Stabilize 2D which is
supposed to stabilize "incoming" image using movie clip
block as reference.
Probably it could be useful to define MAT4 socket type and
use it in MovieClip node as output for stabilization and
as input socket for Stabilization node so relation could be
easily visible on "graph".
===========================
Implemented 2D stabilization:
- Based on average point of several tracks.
- Tracks for stabilization are controllable from
"2D stabilization" panel.
- Implemented autoscaling. Could fail if average point is
too close to frame boundary.
- Background clip in 3D viewport and MovieClip input
compositor nodes are using stable shot.
Some internal weak things:
- Stable shots aren't cached in moviecache. There is
only one "slot" for stable shot inside stabilization
structure.
- This could fail if several threads are requested different
frames (for example when starting playback, pause to make
Nodes Editor trigger refresh, continue playback).
- Due to it shouldn't crash i decided to implement better
caching for stable shots a bit later.
===========================
- Operator "Join Selected Tracks".
This operator joins all selected tracks to active track.
Hotkey is Ctrl-J.
- Operator "Select Grouped".
Now it's easy to select all locked/keyframes/etc markers.
Hotkey is Shit-G.
- Operator to jump to beginning/end of active path.
Hotkeys are Shift+Ctrl+Arrow Left/Right.
- Operator to copy color from active track to all tracks.
===========================
- Fixed crash when holding down S and R keys.
- Fixed deleting of first marker.
- Tracking should now work fine with float buffers.
- Added option to show distortion grid. It's most probably
temporary solution until [auto]calibration tools aren't
merged.
This grid defines straight lines on the image.
===========================
- Internal change: do not use maroses for checking the only
one bit of track/marker flags.
- Do not display track name for disabled markers when
"Show Disabled" is turned off.
- Option to lock tracks. Locked tracks can't be be moved,
scaled, re-tracked and so.
===========================
- Selected bundles are now highlighted with outline.
It looks more Blender-way of highlighting selected items.
- Added option to show bundles names in 3D viewport.
- Bundles now coudl be selected from 3D viewport.
===========================
- Bundle re-newed libmv library.
- Update API in libmv-capi to match new library.
- Initial implementaition of feature detection.
- Fixed bug with incorrect user sync when tracking
for first frame.
===========================
Small fixes and features:
- Fixed broken toolshelf for empty space clip.
- Added option to hide disabled tracks.
- Do not send disabled markers to tracking job.
- Fixed bug with disabling marker when tracking backwards.
- Fixed bug with unset principal point by default.
- Hide bundle projection for disabled markers.
- Flip orientation when hitting "Set Axis" when bundle is
already defines axis.
===========================
- Changed libmv api to use doubles instead of floats.
No real benefit rather than keeping API uniform.
- Optimized reconstructed camera search. It's optimized for
playback, not random access.
- Added option to show projection of bundles into footage.
To see bundles "Show Bundles" from Display panel should
be enabled. Used very rough limit of 3 px to consider projection
is fine. Colors are still hard-coded. Not sure it could be useful
to make them configurable.
- Added option to mute footage. It could be useful to check
if markers/bundles are moving smoothly.
- Added selector for focal length units.
===========================
- Implemented hide/show track functionality.
- Small re-exposing Marker menu into UI.
Now it's called "Track". Added new operators there.
- Set reconstructed clip as active to scene.
===========================
- Made settings for tracking non-animatable.
- Fixed crash when enabling/disabling markers from
"Specials" menu.
- Translate all coords to make first reconstructed camera
be at position (0,0,0).
- Blender's camera now affects on reconstructed data.
Bundles are "parented" to active scene camera. So now
bundles' could could be scaled and rotated when camera
is rotating/scaling.
===========================
- ColaMD moved from OpenNL to extern/.
It'll be needed for libmv. Also, it's a bit updated from
year 1999 to 2007.
Need to be tested for regressions.
- Updated bundling script for libmv. Now it uses fuller
subset of this library.
- Bundled new libmv.
- Request from Keir: add command line argument to toggle logging
stuff on. Currently, if Blender is launched with -d argument
libmv would start printing logging messages. There's no
argument to increase verbosity, but there's API in libmv-capi,
so it'll be easy to add.
- Finally fixed crash when ibuf is acquiring with user=NULL.
- Added ActiveClip property to the scene. This clip is used
as default value for new match-moving constraints.
- Added some flags to Display panel of View3D. Related on
displaying match-moving stuff.
- Internal change: bundles data moved inside to MovieTrackingTrack.
- Initial implementation of 3d reconstruction.
- Added constraint "Camera Solver". This constraint is supposed
to be used to make camera follow the reconstructed camera path.
- Added "reference" property to "Follow Track" constraint.
Now object could be "parented" to 2D track position or to
3D bundle position.
The very quick guide:
To use reconstruction you should have footage with tracked markers,
choose two keyframes in "Tracking settings" panel. There should be
quite noticeable parallax effect between this two frames. This
is used to initialize reconstruction stuff.
Camera data (focal length and optical center) should be filled in
"Camera Data" panel. Optical center is often the center of image,
so it'll be filled in automatically.
You should also set values for undistortion (K1, K2 and K3). Currently,
there's no any visualization for this parameters and approach of
"change value -> reconstruct -> see what've changed" is the only way
for now.
Libmv team is working on auto-calibration tool, so it should be
easier to gather this coefficients in nearest (i hope) future.
There's also no scene orientation stuff.
Basic workflow:
- Open footage.
- Set markers and track them.
- Fill in camera data and keyframes.
- Hit "Solve Camera" button.
- Add "Camera Solver" constraint to camera in scene.
- Choose movieclip in that constraint.
- To see bundles in 3D viewport active clip should be set
in scene buttons.
===========================
- Fixed bug with swapped width/height used for per-pixel cycle
when disabling color channel to be used for tracking.
- Marker preview is now using sub-pixel precision.
- Tracking stuff uses the same imbug generation function
as preview area does. Sub-pixel precision should be ok
now here too.
===========================
- Removed unneeded checking of marker==NULL
- Tracks could be named now.
- Implemented "Follow Track" constraint to "parent"
objects to tracks from movie clip.
- Added operator to create such constraint for active object
using clip and track from current context.
===========================
- Internal changes:
* Fixed bundle.sh script to bundle libmv: it was generating
incorrect CMakeLists header.
* Rename CLIP_OP_delete to CLIP_OT_delete_track.
* Fixed crash when BKE_movieclip_acquire_ibuf is called
with NULL user.
* Made MovieTrackingMarker structure 8-bytes aligned
* Use writestruct rather than writedata for track markers.
This allows to change MovieTrackingMarker safely.
- Added "Delete Marker" operator which deletes marker for
current frame only. Hotkey is Shift-Del.
- Added MovieClip.size and MovieClip.resolution RNA properties.
Use last accessed frame number to get ImBuf from sequence.
- Added different actions for "Clear Path" operator:
* Clear path up to current frame.
* Clear the whole path.
* Cleat remained part of path (for frames after current).
- Changed buttons order and icons for tracking. New order is:
* Track frame backwards.
* Track sequence backwards.
* Track sequence forwards.
* Track frame forwards.
NOTE: this breaks compatibility with existing .blend files again,
but it should be much easier to change data structures without
breackaged in the future.
===========================
- Fixed "sliding" when panning footage in high zoom.
This was most noticeable near right top corner of footage.
- Fixed 1px flickering of marker during playback with
"Lock to Selection" toggled on. This was caused by
precision errors. Used UI_view2d_to_region_no_clip-like
offsets calculations, but in float values. Maybe there
could be something smarter..
- Implemented tarcking along single frame.
Hotkey is ALT+left/right array. Also changed a bit
tracking tools buttons in Tools panel.
- Fixed "Lock to Selection" during tracking -- tracks
synchronization should happen before centering view.
- Approximate marker's position for frames, which haven't
got marker for them.
Use the nearest marker from left side for approximation.
For frames above first marker's framenr sue first marker
position.
- Markers now could be disabled. Added checkbox to
"Active Marker" panel.
- Changes in cache line:
* Bright line means active track has marker for frame.
* Dark line means marker's position is approximated.
* Yellow-less line means marker is disabled for that frames.
NOTE: .blend files which are saved with previous tomato version
would fail to work properly. I don't want to spend time
on making that files work properly atm, so don't blame on this.
===========================
- Corrected copyrights in my new files header.
- Added debug option to dump as PNG image content of search
areas tracking between which was failed.
- Removed internal tracking settings like pyramid level and
tolerance. Weren't useful neither for me nor for artists.
- Fixed bug in BKE_tracking_get_marker which could lead
to failure of getting marker for current frame when
there's marker for requested frame.
- Fixed bug with disappearing markers after tracking for
cases when marker was added at frame different from
tracking start frame and tracking start frame is
equal to tracking end frame.
- Stop tracking when no markers could be tracked.
- Changed marker selection rules:
* If marker isn't selected, all it's areas are getting
selected with mouse.
* If marker is selected and selection type doesn't have
"extend" mode (SHIFT isn't holded down) the nearest
to mouse cursor area would be selected. All the reast areas
would loose selection.
- Limit number of frames which would be used in "Track Markers"
operator. So now you could easily track along 10/20/etc frames.
- Change scene current frame after "Track Markers" operator.
- Implemented speed limitors. Now tracking could happen:
* As fast as possible
* With reatime speed (scene FPS)
* With half of realtime speed
* With quarter of realtime speed.
- Got rid of orig_user in MovieTrackingContext and user
in TrackMarkersJob. This prevents crashes when user
joins some space to SpaceClip from which tracking was started.
- Made keyframes on path bigger and do not draw keyframes for
non-selected markers.
TODO: need to get rid of storing main, scene and screen
in TrackMarkersJob. This is needed to set scene's
current frame after tracking (such behavior is comfortable
for artists) but this could lead to crash if scene is
getting removed when tracking job is running.
Render animation operator also stores scene and main,
so such solution could be fine for first time before
we've got something smarter.
===========================
- libmv's sources would now be added to qtcreator project.
- Fixed compilation with blenderplayer enabled and cmake.
- Fixed bug when tracking was done from frame different from
initial marker's frame number.
- Implemented backwards tracking.
- Added option to draw track's path. Would be enabled by default
for new scenes. Could be enabled on "Display" panel for
files saved in previous version.
- Added operator to clean track path so it could be
easily tracked form scratch.
- Added hotkeys for tracking, backwards tracking and
cleaning track path (Ctrl-T, Ctrl-Shift-T and Alt-T).
- Fixed crash when setting clip as a footage.
- Small optimization when trying to track without
selected markers.
===========================
- itasc adopted for Eigen3 library.
It compiles well, but need deeper testing for regressions.
- Removed Eigen2 library.
- Added settings to tracker which could be changed from UI.
- Pattern area is now affects on tracker.
Currently libmv supports square patterns which are centered
to marker's position. Maximal pattern dimensions is sending
to libmv as pattern size. Would be changed when libmv would
support non-centered and non-square patterns.
- Fixed bug with syncing pattern's flags when tracking.
- Current frame in cache line became a bit more visible.
It's useful for me to when debugging.
- Changed behaviour of "Add Marekr" operator: not it's non-modal
and places marker on mouse position at click.
- Added macro "Add Marekr and Move" which is used to place
markers from toolbar button.
- Added some utility functions to get image buffer under search
and pattern area which also returns relative position of
marker center for this images.
Generated images are more "correct" from coords rounding
POV, but re-calculation of marker position back to
frame coords is more complicated and not implemented yet,
so old not very accurate logic is still used.
- Added preview widget with content of pattern area.
NOTE: files saved in previous versions of this branch could
easily crash on tracking. Use "Reset To Settings" button
from Tracking Settings before tracking selected markers
for such files.
TODO:
- Implement adjusting marker position from marker's
preview widget.
- We've got an idea of sliding marker after click before
releasing mouse button.
===========================
- Added missed stub for blenderplayer, so it should
compile again fine.
- libmv is added to extern/.
Script for bundling needed subset of sourcses from
libmv repo is included there.
- Eigen3 is also added to extern/.
libmv depends on Eigen3 (which isnt't compatible with Eigen2
from API point of view). So both of versions are going to
be in worktree for time (until code which used Eigen2 would be
ported to Eigen3).
- Added some functions to libmv-capi, so some things from
this library could already be used.
- Added the very basic implementation of 2D tracking.
It should be treated as draft for tracking architecture
which probably would be cleaned up, changed or whatever else.
Current implementation was supposed to demonstrate that our
structures and understading is correct to interact with libmv easily.
===========================
- Disallow moving pattern/search area in way when marker position is
outside of pattern area.
- MoiveClip could be set as background for 3D view.
Added background source property to BGPic to switch between image
and movie. Movie is a bit more complicaated entity than clip (due to
displaying bundles, test objects and so) that's why i've sliptted
background into two sources.
- Added Layout.template_movieclip to display general clip settings.
Used in Footage panel of SpaceClip and background image properties
in 3d view.
- Display bundles in 3D view as spheres. Selection is synchronized to
markers associated with this bundle.
Bundle can't be selected in 3D view.
- Recoded internal DNA structures, RNA and operators to match libmv entities.
Tracking data now consists of Tracks, each tracks consists of markers
which are associated with frame number. Markers holds position only,
pattern and search areas settings are stored in track. Such settings should
be unified for all markers in track and marker should hold position and
frame number only.
===========================
Implemented basic structures and operators for markers manipulaiton.
Markers contains:
- Position of marker at frame in unified 0..1 coordinates
- Relative positions of left-bottom and right-top corners of pattern area
- Relative positions of left-bottom and right-top corners of search area
- Selection flags
New operators:
- Create new maerker. It's a modal operator which creates markers
at mouse position when LMB is clicking.
- Delete selected markers.
- Select marker using RMB. Some parts of marker (point, patter, search)
could be deselected.
- Select markers using rectangular selection.
- Select markers using circle selection.
- Marker translation (G-key).
- Marker scaling (S-key).
UI changes:
- Added mode to space clip. Currently supported modes are:
* View mode
* Tracking mode
This was intended to separate different categories of tools,
so interface shouldn't be overheaded with plenty of tools
which aren't actually using in the same time.
- Created new panel when actiev tool is 'MARKER' and there's
active marker where positions could be adjusted in pixel space.
Internal changes:
- Splitted DNA/RNA movieclip files to make separation of
tracking data and movie data more clear. This could be useful
in the future when we'll want to support multiplie moies
for single camera tracking (to make tracking more accurate).
- Added new file in blenkernel, where all tracking-related function
would be stored. Not very much function here at this moment,
but in the future all stuff related on converting DNA to external
tracking data would be stored here.
