Integrate an existing implementation of the SLIM unwrapping algorithm
into Blender. More info about SLIM here:
https://igl.ethz.ch/projects/slim/
This commit is based on the integration code written by Aurel Gruber
for Blender 2.7x (unfinished and never merged with the main branch).
This commit is based on Aurel's code, rebased and further improved.
Details:
- Unwrap has been moved into a sub-menu,
slim unwrapping is exposed as: "Minimum Stretch".
- Live unwrap with SLIM refines the solutions using a timer.
- When using SLIM there are options to:
- Set the number of iterations.
- Weight the influence using vertex weights.
- SLIM can be disabled using the `WITH_UV_SLIM` build option.
Co-authored-by: Aurel Gruber <aurel.gruber@infix.ch>
Ref !114545
Previously when there was a single mesh/curve/point cloud/grease pencil
input, the code would still do a deep copy of the entire geometry. Not
only does this waste time and memory usage, it also inhibits the
benefits of the shared cache system, causing normals and other derived
data to be recalculated more than necessary.
This commit makes the realize instance node "free" in those cases.
When the instance has a non-identity transform it only copies and
transforms the positions; the rest of the geometry is untouched.
For the implementation it was simpler to still copy the ID data-block
and rely on implicit sharing to avoid the expense of copying attributes.
That's because we don't have access to the original geometry set
components after all the preprocessing has happened.
Pull Request: https://projects.blender.org/blender/blender/pulls/127867
Export Blender Point Clouds as `UsdGeomPoints` primitives.
Summary
- Adds the `USDPointsWriter` class
- Adds tests to ensure that animated positions, velocities, radii, and
regular attributes are all written correctly (in a sparse format)
- Adds a new `export_points` operator property, mirroring the existing
`import_points` option
Pull Request: https://projects.blender.org/blender/blender/pulls/126389
Design: https://projects.blender.org/blender/blender/issues/126032
The brush assets project merged all brush based tools into a single, "Brush"
tool. After feedback, we want to bring back some of the previous brush based
tools. For example in grease pencil draw mode, not having an eraser or fill tool
available, and having to go through all the brush assets instead made the
workflow more cumbersome, and features less discoverable (an eraser tool in the
toolbar is quite easy to find, a brush deep down in the asset library may not
be).
With this commit we can add back some tools for specific brush types in sculpt &
paint modes. The follow up commit will start with the eraser and fill tools for
grease pencil draw mode, but more tools in other modes are expected to follow.
For every brush type that has a tool in the toolbar, the last used brush is
remembered. This is the biggest part of the changes here.
Brush asset popups will only show the brushes supported by the active tool for
now. The permanent asset shelf region displays all brushes. Activating a brush
that isn't compatible with the current tool will also activate the general
"Brush" tool, but while the brush tool is active we never switch to another one
(e.g. activating an eraser brush will keep the "Brush" tool active). All this
might change after further feedback.
Pull Request: https://projects.blender.org/blender/blender/pulls/125449
This has already been tried to solve in f71d89bb04 (but apparently
still wrong).
This PR will hopefully address part of the scaling issues (rotation
needs another look, see below)
wrt. to scaling, the is code in place to reorient the size matrix in
`ElementResize` (for `Sculpt`, `Object`, `ObjectTexSpace` & `Pose`) that
multiplies by `td->axismtx` and it can be assumed that this code expects
`td->axismtx` to be normalized (otherwise the scaling adds up). And it
looks like all code coming here actually does this (except sculpt code
from `createTransSculpt`).
So to resolve, normalize `td->axismtx` in `createTransSculpt`.
NOTE: even after this PR, there can still be issues with scaling, namely
with rotated objects and global orientation, or when the pivot is set to 3D
cursor, those need another look.
NOTE: for rotation, I need another look at git history, atm. it seems
puzzling that f71d89bb04 e.g. uses `TransDataExtension::l_smtx` (this
is only ever used for pose related rotation?!)
part of #127398
Pull Request: https://projects.blender.org/blender/blender/pulls/127495
In blender, hidden items should not be selected.
Also, making an item unselectable should deselect it.
- in armature editmode (unlike posemode), hiding a bone through RNA
(unlike though the Outliner) would not deselect the bone
- in armature editmode (unlike posemode), hiding a bone through RNA
would not update the Outliner
- in armature posemode (unlike editmode), making a bone unselectable did
not deselect it (at least it did not update properly)
To resolve, add deselection to the RNA update functions and add needed
depsgraph tagging
Also add Bone selectability checkbox to Properties Editor (could be
split in a separate commit) -- came up in #127180.
Pull Request: https://projects.blender.org/blender/blender/pulls/127340
There were some issues with the operator:
* The `keep_original` option could easily crash blender.
* The surface projection did not work correctly.
This commits fixes those issues. The `keep_original` was
missing a tag for the topology that changes in the
drawing. The surface projection needed to cache the
viewport depths. This is done once and then used
to initialize the `DrawingPlacement`.
We already have the `description` property on panels but are currently not
displaying it when hovering over a panel header. With this patch, the
descriptions will be shown in group nodes as well as the geometry nodes
modifier.
I had to do two lower level changes for layout panels because it didn't work
with tooltips properly.
* Tooltips make the label in the panel header interactive, but clicking to
open/close the panel should still work.
* The tooltip should disappear when clicking on the header. This is consistent
with tooltips in other places.
Pull Request: https://projects.blender.org/blender/blender/pulls/127852
Previously, it was only possible to bake to disk with geometry nodes. This patch
adds support for storing the baked data directly in the .blend file.
By default, new bakes are stored in the .blend file now. Whether a new bake
should be packed or stored on disk can be configured in two places: in the
properties of the bake node and in the bake panel of the modifier. These
settings don't affect existing bakes, only the next bake.
To unpack or pack an individual bake, there is a new operator button next to the
bake button. The icon and the label below indicate where the bake is currently
stored. The label now also contains the size of the bake.
To unpack or pack all bakes, the `File > External Data > Pack Resources / Unpack
Resources` operators can be used. The unpack operator also has a new title that
mentions the number if individual files separate from the number of bakes. This
works better than just listing a number of files because a bake can consist of
many files.
Pull Request: https://projects.blender.org/blender/blender/pulls/124230
This adds the "Merge Animation" (`ANIM_OT_merge_animation`) operator to the 3D viewport.
It merges the animation of all selected objects into the animation of the active object.
On a technical level this moves the `ChannelBag` of the source action into a new slot
on the target action. The Slot name is copied but might differ due to name clashes.
Due to this, the operator is named "Merge Animation" and not "Merge Actions" since
it might not merge the complete actions but only the slots actually used by the selection
in the 3D viewport
This operator will find all related IDs to the selection, i.e. object data, shape keys etc. and merge those as well.
That means this operator can also be used to JUST merge the actions of the active object and its data.
### Caveats
Because there may be more than 1 slot user this might reassign an object that isn't actually selected.
The other option is that when there is more than 1 slot user, the `ChannelBag` is copied instead of moved.
That means moving objects that share a slot one by one would result in a loss of slot sharing and
data duplication. I think it's better to respect the artist decision of "these things use the same animation"
in this case. (open to opinions though)
Design task: #126937
Pull Request: https://projects.blender.org/blender/blender/pulls/127414
The `IndexRange::total_size` function was changed in ba28469e45.
This broke the grease pencil clipboard paste function, because it
already subtracts the starting index, leading now to invalid index
ranges. Removing the duplicate fixes this issue.
Pull Request: https://projects.blender.org/blender/blender/pulls/127907
`struct` keyword for members and parameters is not necessary in C++
headers, as long as the struct has been declared previously.
This reverts commit 09e459589f.
This commit adds low-level logic in BKE to support three behaviors in
case of name conflict when renaming an ID:
1. Always tweak new name of the renamed ID (never modify the other ID
name).
2. Always set requested name in renamed ID, modifying as needed the
other ID name.
3. Only modify the other ID name if it shares the same root name with the
current renamed ID's name.
It also adds quite some changes to IDTemplate, Outliner code, and
RNA-defined UILayout code, and the lower-level UI button API, to allow
for the new behavior defined in the design (i.e. option three from above list).
When renaming from the UI either 'fails' (falls back to adjusted name) or forces
renaming another ID, an INFO report is displayed.
This commit also fixes several issues in existing code, especially
regarding undo handling in rename operations (which could lead to saving
the wrong name in undo step, and/or over-generating undo steps).
API wise, the bahavior when directly assigning a name to the `ID.name`
property remains unchanged (option one from the list above). But a new
API call `ID.rename` has been added, which offers all three behaviors.
Unittests were added to cover the new implemented behaviors (both at
BKE level, and the RNA/Py API).
This commit implements #119139 design.
Pull Request: https://projects.blender.org/blender/blender/pulls/126996
This is a follow up to #126559. In that PR, strip data is never deleted even
when the strip that uses it is. Thus, the strip data array just keeps growing as
more strips are added, and never shrinks.
This PR implements that deletion. The approach is simple: remove the strip data
from the array using a swap-remove that swaps in the last item in the data
array, and then loop over the strips in the action to update any that were
referencing that swapped-in item. Additionally, before removal we check to make
sure the data item isn't still being used by any strips, and if it is then we
don't remove it.
Pull Request: https://projects.blender.org/blender/blender/pulls/127837
The function would return two very different layouts in different code
paths, making it not clear to the caller what to expect. For one code
path the return value was rather useless, and in fact unused, so I was
able to just remove this. Also clarified behavior and return values in
the function API comment.
Since 5bcb0c9935, `uiLayout.template_ID()` already supports passing a label, in
which case the `uiLayout.use_property_split` would be respected. This makes the
template fit nicely with the surrounding layout, where buttons might have a
label split on the left, and a decorator button on the right.
This change brings the same to `uiLayout.template_search()`, plus makes it
respect `uiLayout.use_property_decorate`
Pull Request: https://projects.blender.org/blender/blender/pulls/127751
Sometimes it is inconvenient to see some large numbers in the spreadsheet
because they are cut off.
This commit adds tool tips to the spreadsheet when hovering the mouse
over a normal float or int value.
Pull Request: https://projects.blender.org/blender/blender/pulls/127588
Deleting ID would systematically call `BKE_main_collection_sync_remap`,
which would invalidate all collection caches. This should only be needed
when deleting a Scene, Collection or Object ID.
Pull Request: https://projects.blender.org/blender/blender/pulls/127866
This commit ports over the legacy Grease Pencil "Bake Object Transform
to Grease Pencil" (`GPENCIL_OT_bake_grease_pencil_animation`) to GPv3.
It is accessed in the same location as the old operator, via the menu
path Object > Animation > Bake Object Transform to Grease Pencil
Pull Request: https://projects.blender.org/blender/blender/pulls/126581
Add an iterator `foreach_action_slot_use_with_references(ID, callback)`
that provides references to the found `bAction` pointer and slot handle.
That way the callback can assign another Action or slot when it sees
fit, without having to know exactly what the source of this info is
(could be a direct assignment, but also an NLA strip or Action
Constraint).
Ref: #127844
Pull Request: https://projects.blender.org/blender/blender/pulls/127871
This PR introduces parallel shader compilation for Vulkan shader
modules. This will improve shader compilation when switching to material
preview or EEVEE render preview. It also improves material compilation.
However in order to measure the differences shaderc needs to be updated.
PR has been created so we can already start with the code review. This
PR doesn't include SPIR-V caching, what will land in a separate PR as
it needs more validation.
Parallel shader compilation has been tested on AMD/NVIDIA on Linux.
Testing on other platforms is planned in the upcoming days.
**Performance**
```
AMD Ryzen™ 9 7950X × 32, 64GB Ram
Operating system: Linux-6.8.0-44-generic-x86_64-with-glibc2.39 64 Bits, X11 UI
Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 550.107.02
```
*Test*: Start blender, open barbershop_interior.blend and wait until the viewport
has fully settled.
| Backend | Test | Duration |
| ------- | ------------------------- | -------- |
| OpenGL | Coldstart/No subprocesses | 1:52 |
| OpenGL | Coldstart/8 Subprocesses | 0:54 |
| OpenGL | Warmstart/8 Subprocesses | 0:06 |
| Vulkan | Coldstart Without PR | 0:59 |
| Vulkan | Warmstart Without PR | 0:58 |
| Vulkan | Coldstart With PR | 0:33 |
| Vulkan | Warmstart With PR | 0:08 |
The difference in time (why OpenGL is faster in a warm start is that all
shaders are cached). Vulkan in this case doesn't cache anything and all
shaders are recompiled each time. Caching the shaders will be part of
a future PR. Main reason not to add it to this PR directly is that SPIR-V
cannot easily be validated and would require a sidecar to keep SPIR-V
compatible with external tools..
**NOTE**:
- This PR was extracted from #127418
- This PR requires #127564 to land and libraries to update. Linux lib
is available as attachment in this PR. It works without, but is as slow as
single threaded compilation.
Pull Request: https://projects.blender.org/blender/blender/pulls/127698
Follow up to 5d40992fe8.
In the PBVH API, some contexts that take a `float *` parameter named
`depth` use it purely as a return value, other places, however, read
from and write to this parameter.
In the former case, this commit either adds or keeps the `r_` prefix, in
the latter, this commit ensures the parameter has no prefix to avoid
misleading future readers.
Pull Request: https://projects.blender.org/blender/blender/pulls/127886
The property "angle_limit" in bevel and decimate modifier only has a
display precision of 2, but the steps are in 0.1 for each click, so
clicking does not necessarily cause the display number to update. Set
precision to 4 to allow fractions to be displayed properly.
Currently the `sum_group_sizes` call used to count the number
of elements in GPU vertex buffers for each PBVH node stands out
in profiles, taking a few percent of the total time when building
PBVH GPU data. Since the number of corners in a node doesn't
change, it's simpler to just store it in the node. We could
eventually cache it somewhere else too, if there was a benefit
to not storing it in the node itself.
Because the pbvh::Tree has a unique_ptr, the copy assignment constructor
is implicitly deleted. This change makes that fact explicit by declaring
the entire object's copy assignment constructor as deleted.
Pull Request: https://projects.blender.org/blender/blender/pulls/127884
A set of general tidying steps prior to making some PBVHVertRef changes
* Add const where possible
* Add r_ prefix for return parameters
* Use pass-by-reference instead of pointer for some return parameters
* Use std::array's .size() operator for some iteration bounds
* Use float3 for some variables
Pull Request: https://projects.blender.org/blender/blender/pulls/127832
