Reduce dependence on Blender headers as much as possible and move closer
to an include-what-you-use setup.
- Removes unnecessary includes
- Replaces some includes with more appropriate, narrower, substitutes
Pull Request: https://projects.blender.org/blender/blender/pulls/119234
During work on GeometrySet import it was discovered that periodic
(cyclic) bezier curves do not need their first control point repeated
in the actual scene description.
The USD API documentation was a bit unclear on this aspect but this has
been confirmed informally on the AOUSD forum and emperically using
another implementation.
This patch removes the duplicated start point during export.
Pull Request: https://projects.blender.org/blender/blender/pulls/119185
* Only works on machines with a Qualcomm Snapdragon 8cx Gen3 or above.
Older generation devices are not and will not be supported due to
some driver issues
* Requires VS2022 for building.
* Uses new MSVC preprocessor for sse2neon compatibility.
* SIMD is not enabled, waiting on conversion of blenlib to C++.
Ref #119126
Pull Request: https://projects.blender.org/blender/blender/pulls/117036
This can happen e.g. when relative "//" is in Preferences > File Paths >
Temporary Files is used.
Now catch the corresponding COLLADASW::StreamWriterException
and cancel export then.
NOTE: 51126fab33 might have prevented the most common case
to run into this crash (but there might be other cases still so being safe
here does not hurt)
Pull Request: https://projects.blender.org/blender/blender/pulls/118958
- Pass null instead of an empty string to BKE_tempdir_init
because the string isn't meant to be used.
- Never pass null to BLI_temp_directory_path_copy_if_valid
(the caller must check).
- Additional comments for which checks are performed & why
from discussion about #95411.
Building the depsgraph from a worker thread is unsafe currently, as it
may trigger some deferred processing on the Main data itself.
Mimic what was already done for USD (from `5cf3654d9d`) and build the
graph before launching `export_startjob`.
Pull Request: https://projects.blender.org/blender/blender/pulls/118974
There seems to not be a strict rule to only have armatures as parents to
single bones, apparently collada files can also be set up to have mesh
parents for bones. As a consequence, the collada importer
`joint_parent_map` is not safe to fetch objects from and assume their
data can be cast to `bArmature`.
Ultimately, the `joint_parent_map` needs to be looked at again, this
patch just avoids a crash in this scenario (so no such joints will be
iported). Still better than crashing I guess.
Pull Request: https://projects.blender.org/blender/blender/pulls/118751
Sort the incoming Alembic objects by name before processing them. This
mirrors what is already done in USD to partially side-step Blender's
quadratic behavior when checking object names.
The file contained in issue #118839 contains over 365000 individual
objects. This change allows loading to be ~4x faster; from 2.2 hours
down to 28 minutes.
Additionally, change the progress bar to report in finer-grained steps
to better indicate that progress is still being made.
Pull Request: https://projects.blender.org/blender/blender/pulls/118869
Reduce dependence on Blender headers as much as possible and move closer
to an include-what-you-use setup.
- Removes unnecessary includes
- Replaces some includes with more appropriate, narrower, substitutes
- Removes unnecessary forward declarations
Pull Request: https://projects.blender.org/blender/blender/pulls/118308
There probably are more cases where crash will happen as it is
rooting into the issue with BKE_object_workob_calc_parent() which
is used in multiple places.
The issue is caused by the access to a runtime field of workob
outside of the BKE_object_workob_calc_parent(): the runtime field
is stack-allocated in the function, and can not be accessed outside
of the function.
The easiest way to reproduce is to use ASAN, and parent mesh to an
armature with automatic weights. Although, on macOS ASAN did not
report issues, so setting workob->runtime to nullptr at the end of
of the BKE_object_workob_calc_parent() was the easiest.
The solution is simple: make the function to return the matrix,
and take care of the working object inside of it, so all tricky
parts are hidden from the API.
The patch is targeting the main branch, as in 4.1 it is not
required to do such change because all uses of the function only
access object_to_world, which is stored in the object in 4.1.
A double-check in the what_does_obaction() might be needed as it
follows the similar pattern, but it does not seem that runtime
field of the workob is accessed in usages of the what_does_obaction().
Pull Request: https://projects.blender.org/blender/blender/pulls/118847
Regression caused by [0]. Passing "Span" by value caused io_ply test to
fail. References were used so changes would be applied to arguments
passed in.
Revert these changes for "ply_import.cc".
[0]: d338261c55
Make both importers work the same way: first building an array
of the new offsets, then comparing the offsets to check if the
topology changed. Previously the USD importer incorrectly
compared curve offsets to USD point counts.
Also:
- Don't unnecessarily set the resolution to the incorrect default.
The default for the curves system is 12. But it's unnecessary to
fill the attribute to the default value anyway.
- Use some helper methods to iterate over all curves.
- Use float literal instead of integer.
- Use cast and `copy_from` for positions copy
- Pass Span by value
Pull Request: https://projects.blender.org/blender/blender/pulls/118829
This rewrites the Alembic and USD data importers to work with and
output GeometrySets instead of Meshes.
The main motivation for this change is to be able to import properly
point clouds, which are currently imported as Meshes, and curves
data, which suffer from a lot of issues due to limitations of
legacy curves structures (fixed by the new curves data-block) and are
also converted to Meshes. Further, for Curves, it will allow importing
arbitrary attributes.
This patch was primarily meant for Alembic, but changes to USD import
were necessary as they share the same modifier.
For Alembic:
There should be no behavioral changes for Meshes
Curves are imported as the new Curves object type
Points are imported as PointClouds
For USD:
There should be no behavioral changes for Meshes
Curves are imported as the new Curves object type
Note that the current USD importer does not support loading PointClouds,
so this patch does not add support for it.
For both Alembic and USD, knots arrays are not read anymore, as the new
Curves object does not expose the ability to set them. Improvements can
be made in the future if and when example assets are provided.
This fixes at least the following:
#58704: Animated Alembic curves don't update on render
#112308: Curves have offset animations (alembic / USD)
#118261: wrong motion blur from usd in cycles and reverting to the first
frame when disabeling motion blur
Co-authored-by: Jesse Yurkovich <jesse.y@gmail.com>
Pull Request: https://projects.blender.org/blender/blender/pulls/115623
Properly handle exceptions from STL and PLY code to prevent crashes on
invalid file paths.
This will now also Report errors/warnings to the callers of these
formats as well. For the UI this means a Report banner and Info editor
entry. For Python scripts this means an exception instead of silently
continuing.
Related to #117881
Pull Request: https://projects.blender.org/blender/blender/pulls/118731
This addresses issue #93052.
Now converting the USD "varying" interpolation type to
the "point" domain type when importing USD attributes.
There have been some inconsistent opinions in the USD
developer community about whether "varying" interpolation
is equivalent to "corner" or "point" domains for meshes.
However, DCCs such as Unity and Houdini assume that the
number of entries for attributes with "varying" interpolation
is the same as the number of points, and this change allows
Blender to import such assets without error.
Pull Request: https://projects.blender.org/blender/blender/pulls/118539
Blender had a very limited (only uncompressed or MJPEG frames) .avi file
support, for both reading and writing. This is something that ffmpeg can
fully do.
This removes all of that. 3500 lines of code gone, primary motivations being:
- ffmpeg can read and write .avi files just fine, including ones with
uncompressed or MJPEG frames.
- Blender's ffmpeg integration could also be taught to produce uncompressed or
MJPEG .avi files, but TBH I don't see a particular reason to do that. Modern
formats like H264 are better in every way, and already support "lossless"
option if needed.
- The "Lite" blender build configuration was excluding both ffmpeg and avi
anyway, so that config is something that can't read nor write any movies.
User visible changes:
- In scene image output type, under Video section now there's only Ffmpeg Video
(AVI Raw and AVI JPEG are gone)
- Whenever loading an existing file, if output was one of AVI Raw / AVI JPEG,
it is set to Ffmpeg Video.
Pull Request: https://projects.blender.org/blender/blender/pulls/118409
