An apostrophe should not be used because it is not a mark of plural,
even for initialisms. This involves mostly comments, but a few UI
messages are affected as well.
Differential Revision: https://developer.blender.org/D16749
Currently the `MLoopUV` struct stores UV coordinates and flags related
to editing UV maps in the UV editor. This patch changes the coordinates
to use the generic 2D vector type, and moves the flags into three
separate boolean attributes. This follows the design in T95965, with
the ultimate intention of simplifying code and improving performance.
Importantly, the change allows exporters and renderers to use UVs
"touched" by geometry nodes, which only creates generic attributes.
It also allows geometry nodes to create "proper" UV maps from scratch,
though only with the Store Named Attribute node for now.
The new design considers any 2D vector attribute on the corner domain
to be a UV map. In the future, they might be distinguished from regular
2D vectors with attribute metadata, which may be helpful because they
are often interpolated differently.
Most of the code changes deal with passing around UV BMesh custom data
offsets and tracking the boolean "sublayers". The boolean layers are
use the following prefixes for attribute names: vert selection: `.vs.`,
edge selection: `.es.`, pinning: `.pn.`. Currently these are short to
avoid using up the maximum length of attribute names. To accommodate
for these 4 extra characters, the name length limit is enlarged to 68
bytes, while the maximum user settable name length is still 64 bytes.
Unfortunately Python/RNA API access to the UV flag data becomes slower.
Accessing the boolean layers directly is be better for performance in
general.
Like the other mesh SoA refactors, backward and forward compatibility
aren't affected, and won't be changed until 4.0. We pay for that by
making mesh reading and writing more expensive with conversions.
Resolves T85962
Differential Revision: https://developer.blender.org/D14365
Recently a new geometry node for splitting edges was added in D16399.
However, there was already a similar implementation in mesh.cc that was
mainly used to fake auto smooth support in Cycles by splitting sharp
edges and edges around sharp faces.
While there are still possibilities for optimization in the new code,
the implementation is safer and simpler, multi-threaded, and aligns
better with development plans for caching topology on Mesh and other
recent developments with attributes.
This patch removes the old code and moves the node implementation to
the geometry module so it can be used in editors and RNA. The "free
loop normals" argument is deprecated now, since it was only an internal
optimization exposed for Cycles.
The new mesh `editors` function creates an `IndexMask` of edges to
split by reusing some of the code from the corner normal calculation.
This change will help to simplify the changes in D16530 and T102858.
Differential Revision: https://developer.blender.org/D16732
As part of T95966, this patch moves loose edge information out of the
flag on each edge and into a new lazily calculated cache in mesh
runtime data. The number of loose edges is also cached, so further
processing can be skipped completely when there are no loose edges.
Previously the `ME_LOOSEEDGE` flag was updated on a "best effort"
basis. In order to be sure that it was correct, you had to be sure
to call `BKE_mesh_calc_edges_loose` first. Now the loose edge tag
is always correct. It also doesn't have to be calculated eagerly
in various places like the screw modifier where the complexity
wasn't worth the theoretical performance benefit.
The patch also adds a function to eagerly set the number of loose
edges to zero to avoid building the cache. This is used by various
primitive nodes, with the goal of improving drawing performance.
This results in a few ms shaved off extracting draw data for some
large meshes in my tests.
In the Python API, `MeshEdge.is_loose` is no longer editable.
No built-in addons set the value anyway. The upside is that
addons can be sure the data is correct based on the mesh.
**Tests**
There is one test failure in the Python OBJ exporter: `export_obj_cube`
that happens because of existing incorrect versioning. Opening the
file in master, all the edges were set to "loose", which is fixed
by this patch.
Differential Revision: https://developer.blender.org/D16504
In anticipation of UV Copy+Paste, we need fast access to indices
of unique UvElements. Can also be used to improve performance and
simplify code for UV Sculpt tools and UV Stitch.
No user visible changes expected.
Maniphest Tasks: T77911
See also: D16278
An edge can be marked BM_ELEM_SEAM, which means the UV co-ordinates
on either side of the edge are actually independent, even if they
happen to currently have the same value.
This commit optionally add support for UV Seams when computing islands.
Affects UV sculpt tools, individual origins, UV stitch and changing
UV selection modes etc.
Required for upcoming packing refactor which requires seam support
when computing islands.
Differential Revision: https://developer.blender.org/D15875
This commit moves the hide status of mesh vertices, edges, and faces
from the `ME_FLAG` to optional generic boolean attributes. Storing this
data as generic attributes can significantly simplify and improve code,
as described in T95965.
The attributes are called `.hide_vert`, `.hide_edge`, and `.hide_poly`,
using the attribute name semantics discussed in T97452. The `.` prefix
means they are "UI attributes", so they still contain original data
edited by users, but they aren't meant to be accessed procedurally by
the user in arbitrary situations. They are also be hidden in the
spreadsheet and the attribute list by default,
Until 4.0, the attributes are still written to and read from the mesh
in the old way, so neither forward nor backward compatibility are
affected. This means memory requirements will be increased by one byte
per element when the hide status is used. When the flags are removed
completely, requirements will decrease when hiding is unused.
Further notes:
* Some code can be further simplified to skip some processing when the
hide attributes don't exist.
* The data is still stored in flags for `BMesh`, necessitating some
complexity in the conversion to and from `Mesh`.
* Access to the "hide" property of mesh elements in RNA is slower.
The separate boolean arrays should be used where possible.
Ref T95965
Differential Revision: https://developer.blender.org/D14685
The specific functions for vertex colors and and sculpt vertex colors
can be replaced by more generic attribute functions internally.
Also remove a paramter from one function.
The "Color Attributes" system from f7bbc7cdbb has replaced
both "Sculpt Vertex Colors" and "Vertex Colors" in the UI. The Operators
for adding and removing them are unused now.
This commit does not break backwards compatibility with the Python
API, it only removes the operators, which generally aren't used by
addons anyway. The mesh RNA properties will be removed in 4.0 (T100153).
Differential Revision: https://developer.blender.org/D15077
In some cases it is mandatory to be able to hide parts of the mesh
in order to paint certain areas. The Mask modifier doesn't work in
weight paint, and edit mode hiding requires using selection, which
is not always convenient.
This makes the weight and vertex paint modes always respect edit mode
hiding like sculpt mode. The change in behavior affects drawing and
building paint PBVH. Thus it affects brushes, but not menu operators
like Smooth or Normalize.
In addition, this makes the Alt-H shortcut available even without
any selection enabled, and implements Hide for vertex selection.
Differential Revision: https://developer.blender.org/D14163
- Add SelectPick_Params struct to make picking logic more
straightforward and easier to extend.
- Use `eSelectOp` instead of booleans (extend, deselect, toggle)
which were used to represent 4 states (which wasn't obvious).
- Handle deselect_all when pocking instead of view3d_select_exec,
de-duplicate de-selection which was already needed in when replacing
the selection in picking functions.
- Handle outliner update & notifiers in the picking functions
instead of view3d_select_exec.
- Fix particle select deselect_all option which did nothing.
Use a shorter/simpler license convention, stops the header taking so
much space.
Follow the SPDX license specification: https://spdx.org/licenses
- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile
While most of the source tree has been included
- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
use different header conventions.
doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.
See P2788 for the script that automated these edits.
Reviewed By: brecht, mont29, sergey
Ref D14069
When adding certain customdata layers (namely UVs, vertex colors and
sculpt vertex colors), the user does not get notified the specific limit
has been hit (blender just silently does nothing).
Now inform the user [decided to not do this in poll() since it could get
messy once operators are extended to operate on all selected objects, so
left this as a visible error in execute() -- or from python].
Maniphest Tasks: T92318
Differential Revision: https://developer.blender.org/D13147
Rename:
- EDBM_mesh_free -> EDBM_mesh_free_data
BKE_editmesh_free -> BKE_editmesh_free_data
Since this doesn't free the edit-mesh pointer.
- BKE_editmesh_free_derivedmesh -> BKE_editmesh_free_derived_caches
Since this no longer uses derived-mesh, match naming for the related
object function BKE_object_free_derived_caches.
Also remove `do_tessellate` argument from BKE_editmesh_create,
since the caller can explicitly do this if it's needed,
with the advantage that it can be combined with normal calculation
which is faster on high-poly meshes.
Support calculating face normals when tessellating. When this is done
before updating vertex normals it gives ~20% performance improvement.
Now vertex normal calculation only needs to perform a single pass on the
mesh vertices when called after tessellation.
Extended versions of normal & looptri update functions have been added:
- BM_mesh_calc_tessellation_ex
- BM_mesh_normals_update_ex
Most callers don't need to be aware of this detail by using:
- BKE_editmesh_looptri_and_normals_calc
- BKE_editmesh_looptri_and_normals_calc_with_partial
- EDBM_update also takes advantage of this,
where calling EDBM_update with calc_looptri & calc_normals
enabled uses the faster normal updating logic.
Rename function EDBM_update_generic to EDBM_update, use a parameters
argument for better readability.
Also add calc_normals argument, which will have benefits when
calculating normals and tessellation together is optimized.
- Don't use `r_` prefix for an argument that's also read from
(this is meant for return only arguments).
- Rename variables to make it clear the distance is pixels,
using manhattan length measurement.
Regression in 80cbbd2843.
Unfortunately keeping selection picking behavior as well as
supporting finding the nearest face within a radius requires an
inconsistency between x-ray and back-buffer selection that
doesn't work well using the current arguments.
Resolve by adding an argument that causes the input distance
to be ignored for back-buffer selection.
This is used by selection picking but not the knife tool.
This changes behavior for path-selection in face mode,
which now uses a margin for back-buffer selection.
From my own testing this doesn't seem to be a problem like it could be
for regular selection picking.
This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.
This patch has been generated by P1561 followed by `make format`.
Differential Revision: https://developer.blender.org/D8466
Internally UV selection considered close UV's to be connected.
While this could be convenient in some cases,
it complicates logic for more advanced selection operations that
need to check when UV's should be considered part of the same vertex
since simple threshold checks would give different results depending
on the order of UV's tested.
Users must now run "Merge by Distance" instead of relying
on this selection threshold.
I spotted a duplicate struct declaration, so I had to check for other duplicated as well
There might be some other but i am not confident enough for deleting them
this regex search for duplicate ^(.*;)$\n(\1)$
Reviewed By: JacquesLucke
Differential Revision: https://developer.blender.org/D8146
Sculpt Vertex Colors is a painting system that runs inside sculpt mode, reusing all its tools and optimizations. This provides much better performance, easier to maintain code and more advanced features (new brush engine, filters, symmetry options, masks and face sets compatibility...). This is also the initial step for future features like vertex painting in Multires and brushes that can sculpt and paint at the same time.
This commit includes:
- SCULPT_UNDO_COLOR for undo support in sculpt mode
- SCULPT_UPDATE_COLOR and PBVH flags and rendering
- Sculpt Color API functions
- Sculpt capability for sculpt tools (only enabled in the Paint Brush for now)
- Rendering support in workbench (default to Sculpt Vertex Colors except in Vertex Paint)
- Conversion operator between MPropCol (Sculpt Vertex Colors) and MLoopCol (Vertex Paint)
- Remesher reprojection in the Voxel Remehser
- Paint Brush and Smear Brush with color smoothing in alt-smooth mode
- Parameters for the new brush engine (density, opacity, flow, wet paint mixing, tip scale) implemented in Sculpt Vertex Colors
- Color Filter
- Color picker (uses S shortcut, replaces smooth)
- Color selector in the top bar
Reviewed By: brecht
Maniphest Tasks: T72866
Differential Revision: https://developer.blender.org/D5975
The old convention was easy to confuse with ScrArea.
Part of https://developer.blender.org/T74432.
This is mostly a batch rename with some manual fixing. Only single word
variable names are changed, no prefixed/suffixed names.
Brecht van Lommel and Campbell Barton both gave me a green light for
this convention change.
Also ran clan clang format on affected files.
