Two things here:
- fix ghash lookup from rB4d497721ecd1
-- this was looking in the wrong map (causing an assert on file load)
- set MovieTrackingObject active_plane_track to NULL upon deletion (same
as for regular tracks)
-- rBfe38715600c introduced a crash because `draw_tracking_tracks` would
still get an active plane track (logic for getting these changed)
Maniphest Tasks: T102887
Differential Revision: https://developer.blender.org/D16660
This avoids need to do special trickery detecting whether the principal
point is to be changed when reloading movie clip. This also allows to
transfer the optical center from high-res footage to possibly its lower
resolution proxy without manual adjustment.
On a user level the difference is that the principal point is exposed in
the normalized coordinates: frame center has coordinate of (0, 0), left
bottom corner of a frame has coordinate of (-1, -1) and the right top
corner has coordinate of (1, 1).
Another user-visible change is that there is no more operator for setting
the principal point to center: use backspace on the center sliders will
reset values to 0 which corresponds to the center.
The code implements versioning in both directions, so it should be
possible to open file in older Blender versions without loosing
configuration.
For the Python API there are two ways to access the property:
- `tracking.camera.principal_point` which is measured in the normalized
space.
- `tracking.camera.principal_point_pixels` to access the pixel-space
principal point.
Both properties are not animatable, so there will by no conflict coming.
Differential Revision: https://developer.blender.org/D16573
Use active object accessor, and then access data from the
object. There is no need to have an API call for shortcut
of all object fields.
Should be no functional change.
Make it more obvious in the name that an operation is not
cheap, and that the function operates on a tracks from
object and does not need a global tracking structure.
Historically tracks and reconstruction for motion tracking camera
object were stored in the motion tracking structure. This is because
the data structures pre-dates object tracking support, and it was
never changed to preserve compatibility.
Now the compatibility code supports more tricks and allows to change
the ownership without breaking any compatibility. This is what this
change does: it moves tracks from motion tracking structure to the
motion tracking camera object, and does it in a way that no
compatibility is broken.
One of the side-effects of this change is that the active track is
now stored on motion tracking object level, which allows to change
active motion tracking object without loosing active track. Other
than that there are no expected user-level changes.
There are two operators added, which are available via a special
content menu next to the plane track image selector:
- New Image from Plane Marker
- Update Image from Plane Marker
The former one creates an image from pixels which the active plane
track marker "sees" at the current frame and sets it as the plane
track's image.
The latter one instead of creating the new image data-block updates
the image in-place.
This allows to create unwarped texture from a billboard from footage.
The intent is to allow this image to be touched up and re-projected
back to the footage with an updated content.
Available from a plane track image context menu, as well as from the
Track menu.
{F13243219}
The demo of the feature from Sebastian Koenig: https://www.youtube.com/watch?v=PDphO-w2SsA
Differential Revision: https://developer.blender.org/D15312
Pattern is expected to be freely resized to any size, and the search
area s to become bigger when needed.
Remove confusing pattern size clamping which was actually clamping
search area.
There should be no functional changes.
So far it was needed to declare a new RNA struct to `RNA_access.h` manually.
Since 9b298cf3db we generate a `RNA_prototypes.h` for RNA property
declarations. Now this also includes the RNA struct declarations, so they don't
have to be added manually anymore.
Differential Revision: https://developer.blender.org/D13862
Reviewed by: brecht, campbellbarton
Use a shorter/simpler license convention, stops the header taking so
much space.
Follow the SPDX license specification: https://spdx.org/licenses
- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile
While most of the source tree has been included
- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
use different header conventions.
doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.
See P2788 for the script that automated these edits.
Reviewed By: brecht, mont29, sergey
Ref D14069
- Added space below non doc-string comments to make it clear
these aren't comments for the symbols directly below them.
- Use doxy sections for some headers.
- Minor improvements to doc-strings.
Ref T92709
Enable sorting motion tracking tracks by start / end times.
Help identifying what cases reconstructed camera jumps, based
on information about whether any track starts/ends at the frame.
Based on revision eb0eb54d96.
{F10563305}
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D12621
Average selected tracks into the new one. This can be used to improve
stability of tracking on blurry or non-very-sharp feature shapes.
Averaging happens for all position, pattern corners and search area.
Disabled markers do not take effect on averaging. Keyframed flag is
copied from source.
Gaps in the source tracks will be linearly interpolated, to reduce
result track jump. Note that this only applies to gaps "inbetween".
This means that if an input track doesn't have markers in the
beginning/end of it, there is nothing to interpolate with and the
result track will jump.
Available from the Track panel, under the Merge category.
Differential Revision: https://developer.blender.org/D6323
There are two main things.
First, remove the marker index caching. Thins makes it possible to
safely use function from a threaded environment.
Second, replace linear search with binary search, which speeds up
random lookup.
There is no measurable difference in the stabilization which had a
comment about caching nature of track lookup. The random lookup
complexity changed from O(N) to O(log N). In practice this also
unlikely to be measurable, but thread-safety worth it.
The caller is still responsible for allocating list of markers,
but the track allocation and initialization can now be reused.
Currently no functional changes, preparing for an upcoming
development.
Previously, only predefined and limited set of intrinsics combinations
could have been refined. This was caused by a bundle adjustment library
used in the early days of the solver.
Now it is possible to fully customize which intrinsics are to be refined
during camera solving. Internally solver supports per-parameter settings
but in the interface they are grouped as following:
* Focal length
* Optical center
* Radial distortion coefficients (which includes k1, k2, k3, k4)
* Tangential distortion coefficients (which includes p1, p2)
Differential Revision: https://developer.blender.org/D9294
Corrects incorrect usage of contraction for 'it is', when possessive 'its' was required.
Differential Revision: https://developer.blender.org/D9250
Reviewed by Campbell Barton
