Commit Graph

6 Commits

Author SHA1 Message Date
Sergey Sharybin
a19b0d358a Camera tracing integration
==========================

Fix for SAD tracking sliding marker.
2011-10-29 09:46:53 +00:00
Sergey Sharybin
5a1665d64e Camera tracking integration
===========================

- 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.
2011-09-15 19:01:32 +00:00
Sergey Sharybin
864071a512 Camera tracking integration
===========================

- 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.
2011-07-15 20:44:19 +00:00
Sergey Sharybin
1e7ccbba3a Camera tracking integration
===========================

Fix for camera solver on windows.

There were two problems:
- Static align in Eigen should be also disabled for libmv.
- SSBA doesn't work correct for windows when optimization is
  turned on.

There's no other way rather than disable optimization for
the whole extern/libmv. This leads to 3-4x slowdown, but it's
really the only thing we could do now.

Keir is going to drop SSBA out and replace it with Bundler,
so it shouldn't be a major problem.
2011-07-15 16:50:12 +00:00
Sergey Sharybin
d279e8891f Camera tracking integration
===========================

- 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.
2011-07-07 17:58:33 +00:00
Sergey Sharybin
084040acf4 Camera tracking integration
===========================

- 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.
2011-06-10 17:17:25 +00:00