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
Migrate (some) of the UDIM offset calculation from inside one
of the packing engines (where it's consumed) to the packing
operator (where it's produced).
This change (and others) will help simplify the future migration
of the packing engine inside editors/uvedit/uvedit_islands.cc
to the Geometry module, so it can eventually replace the other
packing engine in geometry/intern/uv_parametrizer.cc
Use the node topology cache and avoid modifying the node tree
in a non-threadsafe way to improve the predictability of using
the helper function. Replaces the implementation from
e0d4047136.
Part of a wider set of changes to migrate UV packing from
uv_parametrizer.cc to uvedit_islands.cc.
This allows UV packing improvements including margin calculation,
correctness fixes such as support for non-manifold geometry,
and new packing algorithms including speed and quality improvements.
See for example c2256bf7f7, T82637
This change migrates UV.unwrap and Live UV Unwrap.
Differential Revision: https://developer.blender.org/D16296
A refactor of the margin calculation of UV packing, in anticipation
of multiple packing methods soon becoming available.
Three margin scaling methods are now available:
* "Add", Simple method, just add the margin. [0]
(The default margin scale from Blender 2.8 and earlier.)
* "Scaled", Use scale of existing UVs to multiply margin.
(The default from Blender 3.3+)
* "Fraction", a new (slow) method to precisely specify
a fraction of the UV unit square for margin. [1]
The "fraction" code path implements a novel combined search / secant
root finding method which exploits domain knowledge to accelerate
convergence while remaining robust against bad input.
[0]: Resolves T85978
[1]: Resolves T90782
Differential Revision: https://developer.blender.org/D16121
Change `cd_loop_uv_offset` from signed to unsigned, forcing
a crash if passed invalid input.
Differential Revision: https://developer.blender.org/D15722
During UV unwrapping, Cube Projection, Sphere Projection, Cylinder
Projection and Project From View (in the 3D Viewport), when "Correct
Aspect" toggle is active, it now uses a query cache to perform a
per-face aspect ratio ("per_face_aspect") correction for the active
image of each face.
Reviewed By: campbellbarton
Ref D14852
Unlike 3Dview snapping, UV snapping is always done to the UV closest to
the mouse cursor, no matter the distance.
From the user's point of view, this appears to be an inconsistency (See
{T93538}).
Therefore, set a minimum distance for snapping and, as in 3D View and
highlight the snap with a drawing of a circle.
Release Note: https://wiki.blender.org/wiki/Reference/Release_Notes/3.3/Modeling
Reviewed By: #uv_editing, campbellbarton
Maniphest Tasks: T93538
Differential Revision: https://developer.blender.org/D13873
- Missing star prefix.
- Unnecessary indentation.
- Blank line after dot-points
(otherwise doxygen merges with the previous dot-point).
- Use back-slash for doxygen commands.
- Correct spelling.
This patch adds edge selection support for UV editing (refer T76545).
Developed as a part of GSoC 2021 project - UV Editor Improvements.
Previously, selections in the UV editor always flushed down to vertices
and this caused multiple issues such as T76343, T78757 and T26676.
This patch fixes that by adding edge selection support for all UV
operators and adding support for flushing selections between vertices
and edges. Updating UV select modes is now done using a separate
operator, which also handles select mode flushing and undo for UV
select modes. Drawing edges (in UV edge mode) is also updated to match
the edit-mesh display in the 3D viewport.
Notes on technical changes made with this patch:
* MLOOPUV_EDGESEL flag is restored (was removed in rB9fa29fe7652a).
* Support for flushing selection between vertices and edges.
* Restored the BMLoopUV.select_edge boolean in the Python API.
* New operator to update UV select modes and flushing.
* UV select mode is now part of editmesh undo.
TODOs added with this patch:
* Edge support for shortest path operator (currently uses vertex path logic).
* Change default theme color instead of reducing contrast with edge-select.
* Proper UV element selections for Reveal Hidden operator.
Reviewed By: campbellbarton
Differential Revision: https://developer.blender.org/D12028
Having this setting stored in the image space caused low level selection
logic to have to pass around the image space (which could be NULL
in some cases). Use the tool-settings instead since there doesn't seem
to be much/any advantage in having this setting per-space.
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
Passing multiple UDIM arguments into the packing function
is awkward especially since the caller may not be using UDIM.
Use an argument to store UDIM packing parameters which can be NULL,
which operates without any UDIM support.
Add a function that extracts these parameters out of the image space
allowing for multiple functions to take UDIM parameters in the future.
Implements T78397
Extends the functionality of pack islands operator to allow packing UVs
to either the closest or active UDIM tile.
This provides 2 new options for packing UVs :
* Closest UDIM: Selected UVs will be packed to the UDIM tile they were
placed on. If not present on a valid UDIM tile, the UVs will be packed
to the closest UDIM in UV space
* Active UDIM: Selected UVs will be packed to the active UDIM image tile
In case, no image is present in the UV editor, then UVs will be packed
to the tile on the UDIM grid where the 2D cursor is located.
Reviewed By: campbellbarton
Maniphest Tasks: T78397
Ref D12680
draw_cache_extract_mesh for task scheduling. Will be refactored to draw_cache_extract_mesh_scheduling later on after migrating to CPP.
draw_cache_extract_mesh_render_data extraction of mesh render data from edit mesh/mesh into a more generic structure.
draw_cache_extract_mesh_extractors containing all the extractors. This will be split up further into a single file per extractor.
Remove DNA headers, using forward declarations where possible.
Also removed duplicate header, header including it's self
and unnecessary inclusion of libc system headers from BKE header.
Edges with 3 or more connected UV's caused UV pack to fail.
Instead of using functions from uvedit_parametrizer.c which are intended
specifically for ABF/LSCM unwrapping, use a simpler method for packing
which stores arrays of BMesh faces.
With D8234 a new drawing method for UV/Image editor was introduced. For debugging
reasons we left the old drawing method in the code base. This patch will remove
the old drawing method.
Reviewed By: Clément Foucault
Differential Revision: https://developer.blender.org/D9011
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.
Support setting vert/edge/face selection, using the sticky option
without performing a second loop over all faces to flush selection.
Existing selection code didn't take advantage of BMesh connectivity
since the logic is from before BMesh was included.
Instead of using the mouse cursor position,
this selects between existing selected elements.
Access this since picking a selection path doesn't
work from the menu.
This adds support for path selection for vertex edge & face selection
modes, matching mesh editing behavior, useful with the UV rip tool.
Region select & edge tagging are currently not supported,
although they could be added eventually.
New rip tool matching edit-mesh rip functionality.
Useful as disconnecting UV's, especially for loops is inconvenient
without this.
This uses 'V' to rip, changing stitch to 'Alt-V'.
This feature was added when Blender used tex-face (per-face images),
but doesn't make as much sense since this was removed.
Removing this from UV edit-mode as this wasn't working in any
of the 2.8x releases, causing UV's to be visible but unselectable.
Resolves issue raised in T76958.
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.
