These are not really about reading or writing .blend files, they are
general utilities for file-names/paths. Having to link to the
blendloader library just for these utilities is annoying.
Moved them to `BKE_blendfile.h` now, in agreement with Bastien.
Pull Request: #105825
Refactoring mesh code, it has become clear that local cleanups and
simplifications are limited by the need to keep a C public API for
mesh functions. This change makes code more obvious and makes further
refactoring much easier.
- Add a new `BKE_mesh.hh` header for a C++ only mesh API
- Introduce a new `blender::bke::mesh` namespace, documented here:
https://wiki.blender.org/wiki/Source/Objects/Mesh#Namespaces
- Move some functions to the new namespace, cleaning up their arguments
- Move code to `Array` and `float3` where necessary to use the new API
- Define existing inline mesh data access functions to the new header
- Keep some C API functions where necessary because of RNA
- Move all C++ files to use the new header, which includes the old one
In the future it may make sense to split up `BKE_mesh.hh` more, but for
now keeping the same name as the existing header keeps things simple.
Pull Request: https://projects.blender.org/blender/blender/pulls/105416
3e5ce23c99 introduced a regression in case the freed Main was part of a
list, and was supposed to be removed from it, since calling
`BLI_remlink` does _not_ clear the `prev`/`next` pointers of the removed
link.
This commit also contains a few more tweaks to recent related b3f42d8e98
commit.
This commit introduces a new Main boolean flag that marks is as invalid.
Higher-level file reading code does checks on this flag to abort reading
process if needed.
This is an implementation of the #105083 design task.
Given the extense of the change, I do not think this should be
considered for 3.5 and previous LTS releases.
BKE blendfile should not be allowed to deal with DNA deprectaed data, so
move recent check in rB138b3815e528 into BLO readfile, in a new
`blo_read_file_checks` util that is being called at the very end of main
readfile code (`blo_read_file_internal` and `library_link_end`).
rB7f564d74f9ed (6 years ago!) forgot to clear the deprecated
`Window->screen` pointer on file read for recent-enough .blend files.
This is required since a valid value is always written in .blend files
for that pointer, to ensure backward compatibility.
The issue was never detected so far because that pointer is explicitely
reset to NULL after filewrite, which includes any memfile undostep
write, and usually existing UI data is re-used instead of loading the
one from the .blend file, so thedden assert in `blo_lib_link_restore`
would never be triggered.
Now moved the assert at the end of `setup_app_data` to ensure it always
get checked.
In many cases when reading undo memfile, n the 'restore id from old
main' part of the process, the 'id_old' is not set, which means that
the call to `BKE_main_idmap_insert_id` would try to dereference a `nullptr`.
In practice this is likely not an issue (see comment in code for details),
but at least explicitely check for a nullptr `id_old` pointer.
Would deffer actual cleanup of this area for after 3.5 is branched out.
Currently only affects 'UI' IDs (WindowManager, Screen, etc.), but in
the future other types may be affected as well.
NOTE: this is only used in readfile code itself, not in the
post-processing performed by `setup_app_data`, as this code is too
specific for such generic handling.
A proper boolean custom property type is commonly requested. This
commit simply adds a new `IDP_BOOLEAN` type that can be used for
boolean and boolean array custom properties. This can also be used
for exposing boolean node sockets in the geometry nodes modifier.
I've just extended the places existing IDProperty types are used, and
tested with the custom property edit operator and the python console.
Adding another IDProperty type is a straightforward extension of the
existing design.
Differential Revision: https://developer.blender.org/D12815
Issue comes from the fact that some of the image updates are handled
outside of depsgraph context (through the signal system), and therefore
completely ignored by the undo/redo code.
Now that undo/redo tries to update as little data as possible, it needs
to be aware of these changes.
As a temporary workaround, until image update is fully handled through depsgraph,
consider that IDs tagged with `ID_RECALC_SOURCE` should get their caches
cleared on undo/redo, and tag some RNA property updates of
Image/ColorSpace as such.
Reviewed By: sergey
Maniphest Tasks: T103242
Differential Revision: https://developer.blender.org/D16927
This commit addresses that specific case related to Collection ID type,
using a band-aid fix which is hopefully safe enough.
T103062 will remain open as a TODO task for a proper fix later.
Such IDs are tagged with the new `LIB_TAG_RUNTIME`. They are essentially
like any other regular ID, except that they do not get written in .blend
files. They also do not make their linked data usages directly linked.
They do be written in undo steps however.
This tag should be ignored in any non-Main IDs (e.g. evaluated data,
`NO_MAIN`, etc.).
This commit also adds a new RNA ID property, `is_runtime`. This is not a
direct mapping to the DNA tag, as a non-main ID will also return True,
and the property is only editable for Main IDs.
Some basic testing for expected behavior of that new tag was also added
to `blendfile_io` py unittest.
Required for brush asset project, see T101908.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D16675
ID tags were fully cleared on file write, however some should be written
so that they are preserved accross undo steps.
Currently this likely did not cause any serious issue, as the missing
ones were not that critical.
`OldNewMap` used to have its own map implementation. Given that
the file uses C++ now, it is easy to use a C++ map implementation
instead. This simplifies the code a lot.
Going forward it might make sense to remove the `OldNewMap`
abstraction or to split it up in two (currently, `NewAddress.nr` has
two different meanings in different contexts which is confusing).
No functional changes are expected.
Differential Revision: https://developer.blender.org/D16546
This is the conventional way of dealing with unused arguments in C++,
since it works on all compilers.
Regex find and replace: `UNUSED\((\w+)\)` -> `/*$1*/`
This adds support for showing geometry passed to the Viewer in the 3d
viewport (instead of just in the spreadsheet). The "viewer geometry"
bypasses the group output. So it is not necessary to change the final
output of the node group to be able to see the intermediate geometry.
**Activation and deactivation of a viewer node**
* A viewer node is activated by clicking on it.
* Ctrl+shift+click on any node/socket connects it to the viewer and
makes it active.
* Ctrl+shift+click in empty space deactivates the active viewer.
* When the active viewer is not visible anymore (e.g. another object
is selected, or the current node group is exit), it is deactivated.
* Clicking on the icon in the header of the Viewer node toggles whether
its active or not.
**Pinning**
* The spreadsheet still allows pinning the active viewer as before.
When pinned, the spreadsheet still references the viewer node even
when it becomes inactive.
* The viewport does not support pinning at the moment. It always shows
the active viewer.
**Attribute**
* When a field is linked to the second input of the viewer node it is
displayed as an overlay in the viewport.
* When possible the correct domain for the attribute is determined
automatically. This does not work in all cases. It falls back to the
face corner domain on meshes and the point domain on curves. When
necessary, the domain can be picked manually.
* The spreadsheet now only shows the "Viewer" column for the domain
that is selected in the Viewer node.
* Instance attributes are visualized as a constant color per instance.
**Viewport Options**
* The attribute overlay opacity can be controlled with the "Viewer Node"
setting in the overlays popover.
* A viewport can be configured not to show intermediate viewer-geometry
by disabling the "Viewer Node" option in the "View" menu.
**Implementation Details**
* The "spreadsheet context path" was generalized to a "viewer path" that
is used in more places now.
* The viewer node itself determines the attribute domain, evaluates the
field and stores the result in a `.viewer` attribute.
* A new "viewer attribute' overlay displays the data from the `.viewer`
attribute.
* The ground truth for the active viewer node is stored in the workspace
now. Node editors, spreadsheets and viewports retrieve the active
viewer from there unless they are pinned.
* The depsgraph object iterator has a new "viewer path" setting. When set,
the viewed geometry of the corresponding object is part of the iterator
instead of the final evaluated geometry.
* To support the instance attribute overlay `DupliObject` was extended
to contain the information necessary for drawing the overlay.
* The ctrl+shift+click operator has been refactored so that it can make
existing links to viewers active again.
* The auto-domain-detection in the Viewer node works by checking the
"preferred domain" for every field input. If there is not exactly one
preferred domain, the fallback is used.
Known limitations:
* Loose edges of meshes don't have the attribute overlay. This could be
added separately if necessary.
* Some attributes are hard to visualize as a color directly. For example,
the values might have to be normalized or some should be drawn as arrays.
For now, we encourage users to build node groups that generate appropriate
viewer-geometry. We might include some of that functionality in future versions.
Support for displaying attribute values as text in the viewport is planned as well.
* There seems to be an issue with the attribute overlay for pointclouds on
nvidia gpus, to be investigated.
Differential Revision: https://developer.blender.org/D15954
