Add control over how bone relation lines are drawn. Instead of always
drawing from the head of the child to the tail of the parent, give users
a choice for the parent side of the line. This can now be toggled
between the head and the tail of the bone, where the tail is Blender's
original behaviour and is retained as default value.
Pull request: https://projects.blender.org/blender/blender/pulls/105427
Implements #102359.
Split the `MLoop` struct into two separate integer arrays called
`corner_verts` and `corner_edges`, referring to the vertex each corner
is attached to and the next edge around the face at each corner. These
arrays can be sliced to give access to the edges or vertices in a face.
Then they are often referred to as "poly_verts" or "poly_edges".
The main benefits are halving the necessary memory bandwidth when only
one array is used and simplifications from using regular integer indices
instead of a special-purpose struct.
The commit also starts a renaming from "loop" to "corner" in mesh code.
Like the other mesh struct of array refactors, forward compatibility is
kept by writing files with the older format. This will be done until 4.0
to ease the transition process.
Looking at a small portion of the patch should give a good impression
for the rest of the changes. I tried to make the changes as small as
possible so it's easy to tell the correctness from the diff. Though I
found Blender developers have been very inventive over the last decade
when finding different ways to loop over the corners in a face.
For performance, nearly every piece of code that deals with `Mesh` is
slightly impacted. Any algorithm that is memory bottle-necked should
see an improvement. For example, here is a comparison of interpolating
a vertex float attribute to face corners (Ryzen 3700x):
**Before** (Average: 3.7 ms, Min: 3.4 ms)
```
threading::parallel_for(loops.index_range(), 4096, [&](IndexRange range) {
for (const int64_t i : range) {
dst[i] = src[loops[i].v];
}
});
```
**After** (Average: 2.9 ms, Min: 2.6 ms)
```
array_utils::gather(src, corner_verts, dst);
```
That's an improvement of 28% to the average timings, and it's also a
simplification, since an index-based routine can be used instead.
For more examples using the new arrays, see the design task.
Pull Request: https://projects.blender.org/blender/blender/pulls/104424
133dde41bb changed how 'fake user' flag is handled with linked data.
Previous behavior was a bug/inconsistency, in that the 'directly linked'
tag would be 'over-set' and never cleared, forcing saving references to
a lot of unused linked data.
Note that ideally, 'Fake user' flag should be ignored, and the only way
to decide whether to keep or not a linked ID should be whether it's
actually used by some local data.
However, #103867 and #105687 show that this is causing issues in some cases,
where users wrongly relied on the linked data's pre-defined 'Fake user' flag
to keep their linked data in their production files, even if said data had no
real user.
While not ideal, for now we should consider 'fake user' flag for linked data
as a real usage case. A better handling of this edge-case is related to
wider designs aboud handling of 'non used' data on file save, whether
linked IDs should keep track of being explicitly or implicitly linked by
the user, etc.
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
Increase the default value for the maximum number of recently-opened
files from 10 to 20. Also change the user's preference on version bump
to this new value if their current value is exactly the old default.
Pull Request: https://projects.blender.org/blender/blender/pulls/105703
This simplifies the usage of the API and is preparation for #104478.
The `CustomData_add_layer` and `CustomData_add_layer_named` now have corresponding
`*_with_data` functions that should be used when creating the layer from existing data.
Pull Request: https://projects.blender.org/blender/blender/pulls/105708
Patch version was increased, but the file subversion should have
been increased.
Also fixes previous incorrect patch versioning code as it didn't
add all 'version code until next subversion bump goes here.' after
version bump.
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
This is something we missed in #104599.
Without it, the default color isn't always set.
Thanks to user roman-13 for pointing out the problem,
and thanks to Hans Goudey for telling me the solution.
Pull Request: https://projects.blender.org/blender/blender/pulls/105539
Move two settings that were previously in the "View" menu of the Graph Editor into User Preferences.
It has been mentioned in the meeting by Luciano Muñoz Sessarego that it would be good to move that to the preferences so you can set it once and then forget about it.
The Settings moved are:
Only Selected Curve Keyframes
Use High Quality Display
Pull Request: https://projects.blender.org/blender/blender/pulls/104532
Currently the shade smooth status for mesh faces is stored as part of
`MPoly::flag`. As described in #95967, this moves that information
to a separate boolean attribute. It also flips its status, so the
attribute is now called `sharp_face`, which mirrors the existing
`sharp_edge` attribute. The attribute doesn't need to be allocated
when all faces are smooth. Forward compatibility is kept until
4.0 like the other mesh refactors.
This will reduce memory bandwidth requirements for some operations,
since the array of booleans uses 12 times less memory than `MPoly`.
It also allows faces to be stored more efficiently in the future, since
the flag is now unused. It's also possible to use generic functions to
process the values. For example, finding whether there is a sharp face
is just `sharp_faces.contains(true)`.
The `shade_smooth` attribute is no longer accessible with geometry nodes.
Since there were dedicated accessor nodes for that data, that shouldn't
be a problem. That's difficult to version automatically since the named
attribute nodes could be used in arbitrary combinations.
**Implementation notes:**
- The attribute and array variables in the code use the `sharp_faces`
term, to be consistent with the user-facing "sharp faces" wording,
and to avoid requiring many renames when #101689 is implemented.
- Cycles now accesses smooth face status with the generic attribute,
to avoid overhead.
- Changing the zero-value from "smooth" to "flat" takes some care to
make sure defaults are the same.
- Versioning for the edge mode extrude node is particularly complex.
New nodes are added by versioning to propagate the attribute in its
old inverted state.
- A lot of access is still done through the `CustomData` API rather
than the attribute API because of a few functions. That can be
cleaned up easily in the future.
- In the future we would benefit from a way to store attributes as a
single value for when all faces are sharp.
Pull Request: https://projects.blender.org/blender/blender/pulls/104422
Previously `SEQ_transform_single_image_check` function was used to check
if image or effect strip has only one frame of content. Now these strips
are flagged with `SEQ_SINGLE_FRAME_CONTENT`.
While previously this was implicit property of strip, benefit of having
explicit flag is that this property can be decoupled from strip length.
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.
Pull Request #105485
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.
Add overlay option for retopology, which hides the shaded mesh akin to Hidden Wire, and offsets the edit mesh overlay towards the view.
Related Task #70267
Pull Request #104599
With the goal of clearly differentiating between arrays and single
elements, improving consistency across Blender, and using wording
that's easier to read and say, change variable names for Mesh edges
and polygons/faces.
Common renames are the following, with some extra prefixes, etc.
- `mpoly` -> `polys`
- `mpoly`/`mp`/`p` -> `poly`
- `medge` -> `edges`
- `med`/`ed`/`e` -> `edge`
`MLoop` variables aren't affected because they will be replaced
when they're split up into to arrays in #104424.
Applied for the motion tracking data data structures.
There are two advantages of doing so:
- More explicit and platform independent way of indicating that
something is legacy and is not to be accessed outside of the
versioning code.
- Simplifies conversion to C++ where having deprecated fields
triggers warning in implicitly defined assign operator.
Pull Request #105340
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.
As part of #95966, move the `ME_SEAM` flag on mesh edges
to a generic boolean attribute, called `.uv_seam`. This is the
last bit of extra information stored in mesh edges. After this
is committed we can switch to a different type for them and
have a 1/3 improvement in memory consumption.
It is also now possible to see that a mesh has no UV seams in
constant time, and like other similar refactors, interacting with
only the UV seams can be done with less memory.
The attribute name starts with a `.` to signify that the attribute,
like face sets, isn't meant to be used in arbitrary procedural
situations (with geometry nodes for example). That gives us more
freedom to change things in the future.
Pull Request #104728
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.
Using spans instead of raw pointers helps to differentiate ararys from
pointers to single elements, gives bounds checking in debug builds, and
conveniently stores the number of elements in the same variable.
Also make variable naming consistent. For example, use `loops` instead
of `mloop`. The plural helps to clarify that the variable is an array.
I didn't change positions because there is a type mismatch between
C and C++ code that is ugly to manage. All remaining code can be
converted to C++, then that change will be simpler.
Pull Request #105138
This tools allows to change strip playback speed by manipulating
retiming handles. More handles can be added to single strip to create
variable playback speed.
This tool replaces Speed Factor property in time panel, with exception
of sound strips. Support for sound strips is still in review.
Pull Request #104523
This commit implements described in the #104573.
The goal is to fix the confusion of the submodule hashes change, which are not
ideal for any of the supported git-module configuration (they are either always
visible causing confusion, or silently staged and committed, also causing
confusion).
This commit replaces submodules with a checkout of addons and addons_contrib,
covered by the .gitignore, and locale and developer tools are moved to the
main repository.
This also changes the paths:
- /release/scripts are moved to the /scripts
- /source/tools are moved to the /tools
- /release/datafiles/locale is moved to /locale
This is done to avoid conflicts when using bisect, and also allow buildbot to
automatically "recover" wgen building older or newer branches/patches.
Running `make update` will initialize the local checkout to the changed
repository configuration.
Another aspect of the change is that the make update will support Github style
of remote organization (origin remote pointing to thy fork, upstream remote
pointing to the upstream blender/blender.git).
Pull Request #104755
Currently Metal is more stable then the OpenGL backend on apple
devices. Also the Metal backend supports more features then the
OpenGL backend. For example the viewport compositor and rendering
of production files.
This has been validated with users and studios.
This patch will default to the Metal backend when starting
Blender 3.5 for the first time or when loading factory startup. It
is still possible to switch to OpenGL via the user preferences.
It will not automatically select the Metal backend when there is
already user preferences available for Blender 3.5.
The default import method for an asset library can now be determined in
the Preferences. The Asset Browser has a new "Follow Preferences" option
for the importing. The essentials asset library still only uses "Append
(Reuse Data)".
This is part of #104686, which aims at improving the import method
selection, especially for the introduction of the new essentials library
(which doesn't support certain import methods). Further changes are
coming to improve the UI, see #104686.
Pull Request: #104688
This adds a new `Curve Falloff` popover to the comb brush tool settings.
The curve control allows changing the brush weight along the curve to
e.g. affect the tip more than the root. This is a relative way to get
something like stiffness for short hair.
This functionality could potentially be added to some other brushes,
but the comb brush is the most important one, so that is added first.
I did add the buttons add the buttons to choose a curve map preset.
However, I did not add the preset dropdown, because that just adds
some unnecessary complexity in the code now and is redundant.
Pull Request #104589
Caused by strips being flagged for removal, but the flag was never
cleared. As far as I can tell, this issue is not reproducible anymore,
but there may be files with this flag still set.
This adds a new overlay for curves sculpt mode that displays the curves that the
user currently edits. Those may be different from the evaluated/original curves
when procedural deformations or child curves are used.
The overlay can clash with the evaluated curves when they are exactly on top of
each other. There is not much we can do about that currently. The user will have
to decide whether the overlay should be shown or not on a case-by-case basis.
Pull Request #104467
Previously, the node used the "true" normal of every looptri. Now it uses the
"loop normals" which includes e.g. smooth faces and custom normals. The true
normal can still be used on the points by capturing it before the Distribute node.
We do intend to expose the smooth normals separately in geometry nodes as well,
but this is an important first step.
It's also necessary to generate child hair between guide hair strands that don't
have visible artifacts at face boundaries.
For perfect backward compatibility, the node still has a "Legacy Normal" option
in the side bar. Creating the exact same behavior with existing nodes isn't
really possible unfortunately because of the specifics of how the Distribute
node used to compute the normals using looptris.
Pull Request #104414
As described in #95966, replace the `ME_EDGEDRAW` flag with a bit
vector in mesh runtime data. Currently the the flag is only ever set
to false for the "optimal display" feature of the subdivision surface
modifier. When creating an "original" mesh in the main data-base,
the flag is always supposed to be true.
The bit vector is now created by the modifier only as necessary, and
is cleared for topology-changing operations. This fixes incorrect
interpolation of the flag as noted in #104376. Generally it isn't
possible to interpolate it through topology-changing operations.
After this, only the seam status needs to be removed from edges before
we can replace them with the generic `int2` type (or something similar)
and reduce memory usage by 1/3.
Related:
- 10131a6f62
- 145839aa42
In the future `BM_ELEM_DRAW` could be removed as well. Currently it is
used and aliased by other defines in some non-obvious ways though.
Pull Request #104417
This allow to bypass all cost associated with shadow mapping.
This can be useful in certain situation, such as opening a scene on a
lower end system or just to gain performance in some situation (lookdev).
Implements virtual shadow mapping for EEVEE-Next primary shadow solution.
This technique aims to deliver really high precision shadowing for many
lights while keeping a relatively low cost.
The technique works by splitting each shadows in tiles that are only
allocated & updated on demand by visible surfaces and volumes.
Local lights use cubemap projection with mipmap level of detail to adapt
the resolution to the receiver distance.
Sun lights use clipmap distribution or cascade distribution (depending on
which is better) for selecting the level of detail with the distance to
the camera.
Current maximum shadow precision for local light is about 1 pixel per 0.01
degrees.
For sun light, the maximum resolution is based on the camera far clip
distance which sets the most coarse clipmap.
## Limitation:
Alpha Blended surfaces might not get correct shadowing in some corner
casses. This is to be fixed in another commit.
While resolution is greatly increase, it is still finite. It is virtually
equivalent to one 8K shadow per shadow cube face and per clipmap level.
There is no filtering present for now.
## Parameters:
Shadow Pool Size: In bytes, amount of GPU memory to dedicate to the
shadow pool (is allocated per viewport).
Shadow Scaling: Scale the shadow resolution. Base resolution should
target subpixel accuracy (within the limitation of the technique).
Related to #93220
Related to #104472
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.
Various new CI tests for USD Import / Export functionalty:
Import:
- Added mesh import tests for topology types and multiple UV sets. (Python)
Export:
- Added a verification tests for mesh topology. (C++)
- Added a test to make sure UsdPreviewSurface export conversion of materials
is correct. (C++)
Reviewed by: Sybren and Hans.
Differential Revision: https://developer.blender.org/D16274
