Caused by 21f2bacad9 which copies a few more values to
the original meshes from the "nomain" meshes. The "nomain" meshes
created from the originals need to copy some values as well.
As described in T95966, the goal is to move to a "struct of arrays"
approach rather than gathering an arbitrary set of data in hard-coded
structs. This has performance benefits, but also code complexity
benefits (this patch removes plenty of code, though the boilerplate
for the new operators outweighs that here).
To mirror the internal change, the options for storing mesh bevel
weights are converted into operators that add or remove the layer,
like for some other layers.
The most complex change is to the solidify modifier, where bevel
weights had special handling. Other than that, most changes are
removing clearing of the weights, boilerplate for the add/remove
operators, and removing the manual transfer of bevel weights
in bmesh - mesh conversion.
Eventually bevel weights can become a fully generic attribute,
but for now this patch aims to avoid most functional changes.
Bevel weights are still written and read from the mesh in the old way,
so neither forward nor backward compatibility are affected. As described
in T95965, writing in the old format will be done until 4.0.
Differential Revision: https://developer.blender.org/D14077
- Remove "take ownership" argument which was confusing and always true
- The argument made ownership very confusing
- Better to avoid boolean arguments that switch a function's purpose
- Remove "mask" argument which was basically wrong and not used properly
- "EVERYTHING" was used because developers are wary of removing data
- Instead use `CD_MASK_MESH` for its purpose of original mesh data
- Remove use of shallow copied temporary mesh, which is unnecessary now
- Split shape key processing into separate functions and use C++ types
- Copy fields explicitly rather than using memcpy for the whole struct
- Use higher level functions and avoid redundant code
- The whole idea is pretty simple and can be built from standard logic
- Adjust `CustomData` logic to be consistent with "assign" expectations
- Clear the layer data from the source, and moves the anonymous ID
Differential Revision: https://developer.blender.org/D15857
Currently, when subdividing every single vertex on every loose edge,
Blender iterates over all other edges to find neighbors. This has
quadratic runtime and can be very slow. Instead, first create a
map of edges connected to each vertex.
With about 10000 edges, the performance goes from very slow to very
smooth in my tests. Because of the nature of quadratic runtime, the
improvement will depend massively on the number of elements.
The only downside to this is that the map will still be built when
there are only a couple loose edges, but that case is probably not
so common.
Differential Revision: https://developer.blender.org/D15923
This patch implements the Scale node for the realtime compositor.
Differential Revision: https://developer.blender.org/D15758
Reviewed By: Clement Foucault
Add BKE_object_defgroup_flip_map_unlocked which excludes locked groups
from the flip-map.
Reviewed By: zanqdo, campbellbarton
Maniphest Tasks: T96787
Ref D15317
The following changes have been made to this attribute with
WITH_PYTHON_MODULE is defined:
- Defaults to an empty string (instead of pointing to __init__.so).
- It's writable, so script authors can point to a valid Blender binary.
`where_am_i(..)` is no longer used by BKE_appdir_program_path_init,
there is now a separate code-path for setting the initial program
directory, calls after this can be used to set the binary path.
Replace the argument with an in ifdef in BKE_appdir_program_path_init.
At the time `blenkernel` didn't define WITH_PYTHON_MODULE, since it does
now there is no need for an argument. With the minor benefit of fewer
preprocessor checks in the main() function.
Building WITH_PYTHON_MODULE was creating a "bpy" module that required
Blenders data-files to be located in the module search path too.
This mean that a typical installation on Linux would create:
- `/usr/lib/python3.10/site-packages/bpy.so`
- `/usr/lib/python3.10/site-packages/3.4`
(containing `scripts` & `datafiles`).
The new behavior creates:
- `/usr/lib/python3.10/site-packages/bpy/__init__.so`
- `/usr/lib/python3.10/site-packages/bpy/3.4`
With the advantage that the "bpy" directory is the self contained Python
module.
No changes are needed for the module loading logic as the mechanism to
swap in blend internal Python "bpy" module
(defined in `release/scripts/modules/bpy/__init__.py`)
works the same in both instances.
Thanks to Brecht for macOS support.
Reviewed by brecht
Ref D15911
BKE_appdir_program_path_init would override the module path extracted
from the Python module, replacing it with the Python executable.
This caused the data files not to be found and the module not to load.
Replace `mesh_attributes`, `mesh_attributes_for_write` and the point
cloud versions with methods on the `Mesh` and `PointCloud` types.
This makes them friendlier to use and improves readability.
Differential Revision: https://developer.blender.org/D15907
- ACTIVE flag is no longer in use.
- DESELECT was used in some places as an alias for false,
even though this could arguably help readability, in practice this
was often passed with a selection flag leading to confusing calls
such as `select_beztriple(bezt, DESELECT, SELECT, HIDDEN)`.
Replace SELECT/DESELECT with true/false in these cases.
- Remove ED_types.h. Add a 'SELECT' definition to DNA_anim_types.h,
for fcurve_test, we could use a shared DNA header, or remove use of
the define entirely in favor of typed enums.
This patch consists of two related fixes. The first is a simple fix for
forward compatibility, setting the Mesh.dvert pointer when writing a
file allows old Blender versions to read vertex groups from newly saved
files.
The second part is a bit uglier and more complex. Normally mesh vertex
group data is read in mesh_blend_read_data, for backward compatibility
with very old files. However, after 05952aa94d the mesh.dvert
pointer was not set, so the data was not read. Reading vertex group
layers when reading custom data is enough to fix that issue. We need to
read the data from *both* places, but BKE_defvert_blend_read cannot run
twice without memory leaks, so first try reading from custom data, then
read the pointer if that fails.
Differential Revision: https://developer.blender.org/D15905
This adds a new `blender::BitVector` data structure that was requested
a couple of times. It also replaces usages of `BLI_bitmap` in C++ code.
See the comment in `BLI_bit_vector.hh` for more details about the
advantages and disadvantages of using a bit-vector and how the new
data structure compares to `std::vector<bool>` and `BLI_bitmap`.
Differential Revision: https://developer.blender.org/D14006
From re-checking related code, it seems that we already always ensure
consistency of the `lib` pointer between embedded IDs and their owners.
This commit only adds some asserts in ambedded ID read code to
double-check this.
Note that there are still some references to proxies left, in some cases
it's unclear if the code related to the comment is even still relevant,
this goes beyond mere cleanup to address then.
It turns out upon close inspection that the 'deform only' mesh
only includes leading deform modifiers, rather than all of them
like crazyspace evaluation. This reduces the effect of the change
in rB9823a8f72be8 to using the fully evaluated mesh (all modifiers)
when the whole stack resulted in no topology change.
Use `verts` instead of `vertices` and `polys` instead of `polygons`
in the API added in 05952aa94d. This aligns better with
existing naming where the shorter names are much more common.
Note that lib_override functions have kept the unused argument,
but this may be removed too. It impacts many lib_override functions
so this can be handled separately.
This commit is a big overhaul to the Mikktspace module, which is used
to compute tangents. I'm not calling it a rewrite since it's the
result of a lot of iterations on the original code, but pretty much
everything is reworked somehow.
Overall goal was to a) make it faster and b) make it maintainable.
Notable changes:
- Since the callbacks for requesting geometry data were a big
bottleneck before, I've ported it to C++ and made it header-only,
templating on the data source. That way, the compiler generates code
specific to the caller, which allows it to inline the data source and
specialize for some cases (e.g. subd vs. non-subd in Cycles).
- The one input parameter, an optional angle threshold, was not used
anywhere. Turns out that removing it allows for considerable
algorithmic simplification, removing a lot of the complexity in the
later stages. Therefore, I've just removed the option in the new code.
- The code computes several outputs, but only one (the tangent itself)
is ever used in Blender. Therefore, I've removed the others to
simplify the code. They could easily be brought back if needed, none
of the algorithmic simplifications are conflicting with them.
- The original code had fallback paths for many steps in case temporary
memory allocation fails, but that never actually gets used anyways
since malloc() doesn't really ever return NULL in practise, so I
removed them.
- In general, I've restructured A LOT of the code to make the
algorithms clearer and make use of some C++ features (vectors,
std::array, booleans, classes), though there's still some of cleanup
that could be done.
- Parallelized duplicate detection, neighbor detection, triangle
tangent computation, degenerate triangle handling and tangent space
accumulation.
- Replaced several algorithms with faster equivalents: Duplicate
detection uses a (concurrent) hash set now, neighbor detection uses
Radixsort and splits vertices by index pairs etc.
As for results, the exact speedup depends on the scene of course, but
let's consider the file from T97378:
- Blender 3.1 (before D14675): 6.07sec
- Blender 3.2 (with D14675): 4.62sec
- rBf0a36599007d (last nightly build): 4.42sec
- With this commit: 0.90sec
This speedup will mostly be noticed at the start of Cycles renders and,
even more importantly, in Eevee when doing something that changes the
geometry (e.g. animating) on a model using normal maps.
Differential Revision: https://developer.blender.org/D15589
This changes the two tangent-related files in BKE to C++ in preparation for the C++ Mikktspace port in D15589.
For now, they still use the original Mikktspace.
Differential Revision: https://developer.blender.org/D15636
3484c6d4f1 removed parts of 6e5eb46d73 by mistake,
returning no attribute when attribute data wasn't found. However, we
want that attributes can exist even on empty geometry. This commit
restores the fix and tries to make it more explicit to avoid the same
mistake again.
Differential Revision: https://developer.blender.org/D15899
The constraint attempted to access mesh normals on a mesh with
wrapper type ME_WRAPPER_TYPE_BMESH. This commit reverses the if
statements so that If there is an editmesh then we use that as the
source of truth - otherwise use the evaluated mesh.
Differential Revision: https://developer.blender.org/D15809
It's easier to keep track of state in these algorithms if it's stored in
a central place like a set. Plus, using flags requires clearing them
beforehand. For the selected linked operators, using the topology
cache means we don't have to iterate over all links.
Before 58c650a44c, the nodes span was rebuilt on every redraw. Now
that it's only rebuilt as necessary, we need to tag it dirty when nodes
are reordered. Relying on the order of the nodes at all isn't ideal, but
it's fairly fundamental in many areas at the moment.
Many existing .blend files (including startup ones) seem to have invalid
embedded IDs (they are not properly tagged with `LIB_EMBEDDED_DATA`).
We cannot `do_version` this so just fix it on the fly when detecting the
issue. User then need to re-save these files.
We also need to update some release files (default factory startup is
OK, but e.g. the VSE template one is not).
Keeping the assert is important here, as such missing flag is a critical
data corruption that can potentially have many serious consequences
throughout the ID management code.
Completely forgot in rBcd49fee74114 to handle the owner ID copying case
(this code now also needs to re-assign to `owner_id` pointer of the
newly copied embedded IDs to their rightful owner).
