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.
The performance issue was noticeable when tracking a lot of tracks
which are using keyframe pattern matching. What was happening is that
at some cache gets filled in and the furthest away frame gets removed
from the cache: the frame at marker's keyframe gets removed and needs
to be re-read from disk on the next tracking step.
This change makes it so frames at markers' keyframes are not removed
from cache during tracking.
Steps to easily reproduce:
- Set cache size to 512 Mb.
- Open image sequence in clip editor
- Detect features
- Track all markers
Originally was reported by Rik, thanks!
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
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
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.
This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.
This patch has been generated by P1561 followed by `make format`.
Differential Revision: https://developer.blender.org/D8466
Don't use BKE_view_layer_context_active_PLACEHOLDER which is marked
as "never use this".
In fact, it isn't needed to lookup for camera in the tracking function
at all: camera object is always explicitly passed to it.
Before this the message could be too generic which was simply saying
that console is to be checked. This isn't very useful in cases when
we know that reconstruction is failed because of lack of good keyframes
or failure of initial reconstruction if there is no enough parallax
on the selected keyframes.
BF-admins agree to remove header information that isn't useful,
to reduce noise.
- BEGIN/END license blocks
Developers should add non license comments as separate comment blocks.
No need for separator text.
- Contributors
This is often invalid, outdated or misleading
especially when splitting files.
It's more useful to git-blame to find out who has developed the code.
See P901 for script to perform these edits.
This commit makes it so curve path parent solving accepts an explicit
arguments for both time and curve speed flag, making it so we don't
have to mock around with scene's frame.
One unfortunate issue still is that if the instancing object is used
for something else, we might be running into a threading conflict.
Possible solution would be to create a temp copy of an object, but
then it will be an issue of preventing drivers from modifying other
datablocks.
At least the original issue is fixed now, and things behave same as
in older Blender version. Additionally, the global variable which
was defining curve speed flag behavior is gone now!
The depsgraph was always created within a fixed evaluation context. Passing
both risks the depsgraph and evaluation context not matching, and it
complicates the Python API where we'd have to expose both which is not so
easy to understand.
This also removes the global evaluation context in main, which assumed there
to be a single active scene and view layer.
Differential Revision: https://developer.blender.org/D3152
