Commit Graph

56 Commits

Author SHA1 Message Date
Nika Kutsniashvili
ea47231a7b UI: Make selected track color in Movie Clip Editor themeable
Selected tracks in the Movie Clip Editor's Dope Sheet used hard-coded color.
Added a new theme property for them, and previously hard-coded color is now just a default.

Pull Request: https://projects.blender.org/blender/blender/pulls/144265
2025-08-28 19:12:11 +02:00
Nika Kutsniashvili
15567f597d UI: Remove unused theme properties
There are many accumulated unused properties in theme. Generally, it's a mess,
lot of copy-paste errors and leftovers between editors, shared functions with no
actual use, etc. Some were just added and never used, like Pattern and Layout nodes,
which were meant to be used with Texture Nodes I believe, but it never happened.

Overall 19 properties removed:

- 3D Viewport: Edge UV Face Select
- 3D Viewport: Last Selected Point

- Dope Sheet/Timeline: Value Sliders
- Dope Sheet/Timeline: View Sliders
- Nonlinear Animation: View Sliders
- Video Sequencer: Window Sliders
- Graph Editor/Drivers: Window Sliders

- Graph Editor/Drivers: Vertex Bevel
- Graph Editor/Drivers: Vertex Group Unreferenced
- Image/UV Editor: Vertex Bevel
- Image/UV Editor: Vertex Group Unreferenced

- Image/UV Editor: Freestyle Face Mask
- Image/UV Editor: Face Retopology
- Image/UV Editor: Face Orientation Front
- Image/UV Editor: Face Orientation Back

- Node Editors: Selected Text
- Node Editors: Pattern Node
- Node Editors: Layout Node

- Video Sequencer: Draw Action

---

Details:
- Made Vertex Bevel and Vertex Group Unreferenced colors in `rna_def_userdef_theme_spaces_vertex`
optional, so that they don't appear in Graph Editor and UV Editor theme properties, where they're unused.
- Same thing in `rna_def_userdef_theme_spaces_face` for face attributes (Freestyle Mark, Retopology),
so that they don't appear in UV Editor, where they're unused. Also did same for face orientation colors,
but used different argument for them, since they could be used in future (remember seeing PR for this).

Pull Request: https://projects.blender.org/blender/blender/pulls/143782
2025-08-17 15:39:39 +02:00
Nika Kutsniashvili
7d2b024151 UI: Theme: Move curve handle properties in common
Continuing #140360, after 39c066ee53

Moving curve handle colors & size from space editors into common theme properties.

They are now shared by 3D Viewport, Image Editor, Graph Editor, and Movie Clip Editor,
instead of each of them having their own properties.

(Video in PR)

---

Details:
- NURB U/V lines, active spline, and last selected point colors were defined
in `rna_def_userdef_theme_spaces_curves` but were optional and only called by
3D viewport. Since no other editor calls that function anymore, I removed it and
moved those properties directly inside `rna_def_userdef_theme_space_view3d`.
- In Image Editor & Movie Clip Editor (Mask mode), curves don't ever show
selection colors, and Vector handles are generally never visible, that is
bug/missing in Blender in general, not a result of this PR.
- Handle vertex size were included in Dope Sheet and NLA, where handles don't
exist. Now as a side effect they're removed as well.

Pull Request: https://projects.blender.org/blender/blender/pulls/143762
2025-08-15 21:40:56 +02:00
Nika Kutsniashvili
a459556ebd UI: Theme: Move more animation properties in common
Next step of #140360, continuing after 39c066ee53
Moves more animation theme properties shared by different editors to the new Common panel.

- Playhead (was shared by 7 editors)
- Marker Line (was shared by 5 editors)
- Marker Line Selected (was shared by 5 editors)
- Channel (was shared by 3 editors)
- Sub-channel (was shared by 3 editors)
- Channel Group (was shared by 2 editors)
- Active Channel Group (was shared by 2 editors)

In total, 27 properties are replaced with 7.

---

User Visible Changes:
- "Current Frame" is renamed to "Playhead". It was general sentiment among
Anim and UI modules to rename this everywhere after "Playhead Snapping" was
added, and this is first step towards that. Name is more recognizable and it's
clear it refers to UI element, rather than something as generic as "current frame".

- Channel, Sub-channel, Channel Group, and Active Channel Group colors in
Dope Sheet had alpha, but ones in Graph and NLA editors didn't. New common
property is used for all three of them and has alpha, meaning two editors gain
alpha as well, but they don't use alpha, still only Dope Sheet does.

- Channel and Sub-channel had different color in NLA and didn't match Dope Sheet
and Graph Editor, now since it's shared it has same color, which is a visual change
(slighlty lighter blue).

Pull Request: https://projects.blender.org/blender/blender/pulls/144060
2025-08-09 09:04:53 +02:00
Campbell Barton
86dcdb418d Cleanup: use doxy sections for resources 2025-08-08 07:37:00 +10:00
Pablo Vazquez
840310f607 UI: Add Icons for Edge/Vertex Crease and others
Edge and Vertex marks such as Crease, Bevel Weight, Seam, Sharp, have
specific use cases and colors assigned to them that users get familiar
with over time.

It can be hard to remember which color belong to what, this PR tries to
address this by introducing colored icons that follow the theme setting
for that edge mark/flag.

See PR for details and screenshots.

Pull Request: https://projects.blender.org/blender/blender/pulls/144075
2025-08-07 11:09:56 +02:00
Sybren A. Stüvel
0fa67c3ea2 Fix #142464: Add customizable color for W quaternion channel
The W channel in quaternion and axis-angle F-Curves is now themeable
(defaulting to yellow), instead of incorrectly blending the X and Y axis
theme colors.

The original blending math did not take into account that the hue
channel actually wraps around, and so the blended color became blue
instead of the intended yellow.

Instead of fixing the math, the theme has been expanded for this W axis.
The default color is set to the mathematically correct yellow.

Co-authored-by: Sybren A. Stüvel <sybren@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/143211
2025-08-05 17:55:12 +02:00
Nika Kutsniashvili
39c066ee53 UI: Add common theme properties panel; make preview range common
First part of design defined in #140360

Images in PR

This PR does two things:
- Creates new panel in theme preferences called "Common" that
doesn't belong to any editor
- Moves "Preview Range" property in common, and removes it
from animation editors.

Now, there is a single theme property for preview range, rather
than 5 for each animation editor.

Co-authored-by: Pablo Vazquez <pablo@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/140686
2025-07-31 20:19:00 +02:00
Campbell Barton
e8f9e2d1d1 Cleanup: use UTF8 string functions in editors & related logic
Use UTF8 aware functions unless raw bytes are expected.
2025-07-27 16:41:19 +10:00
Pablo Vazquez
695a03d9f4 UI: Theme: Add text color settings to panels
Recently, panel styling was moved to a global setting instead of being
per-editor. However, the panel's title and labels inside still rely on
the per-editor region's text and title settings.

Move panel title and text colors to the global "Panel" settings.

See PR for details and screenshots.

Part of #135192

Pull Request: https://projects.blender.org/blender/blender/pulls/140726
2025-06-20 21:03:08 +02:00
Guillermo Venegas
091db9d52b Cleanup: UI: Use UI_interface_layout.hh instead of UI_interface.hh
This removes the include `UI_interface_layout.hh` from
`UI_interface_c.hh`, and in many places this swaps the include
from `UI_interface.hh` to `UI_interface_layout.hh`.

Also, cleanups some `UI_interface.hh` includes with
`UI_interface_icons.hh` or `UI_interface_types.hh`
2025-06-20 18:07:47 +02:00
Pablo Vazquez
db9ae93f02 UI: Theme: Add Panel Outline
Add a panel outline theme option, set very low by default. This PR also
adds a slight (2 pixel) padding inset to subpanels.

Pull Request: https://projects.blender.org/blender/blender/pulls/139897
2025-06-18 19:16:24 +02:00
Pablo Vazquez
dd43eae0d3 UI: Theme: Remove NavBar/Execution regions colors
Remove barely used theme settings for "Navigation Bar" and
"Execution Region".

These properties were only used in two areas, which already had a good
candidate to be replaced with.

Visually it should look exactly the same by default.

Part of #135192, simplifying and cleaning up theme settings.

See PR for details and screenshots.

Pull Request: https://projects.blender.org/blender/blender/pulls/140352
2025-06-18 19:01:28 +02:00
Pablo Vazquez
11e729219a UI: Theme: Add Asset Shelf global styling
Simplify theming by making Asset Shelf style global, not per editor.

See PR for details and screenshots.

Part of #135192

Pull Request: https://projects.blender.org/blender/blender/pulls/140553
2025-06-18 14:54:42 +02:00
Pablo Vazquez
7818082d02 UI: Theme: Add global style for panel colors
Move panel header, panel background, and sub-panel background color
settings to be global, under `User Interface`, like other widgets.

Remove per-editor panel styling. This way users can edit the panel
colors once, and affect all panels.

See pull request for screenshots and details.

Pull Request: https://projects.blender.org/blender/blender/pulls/140295
2025-06-12 20:05:34 +02:00
Pablo Vazquez
e8735c3203 UI: Theme: Use tab widget colors for sidebar tabs
Make sidebar tabs use the `wcol_tab` widget colors, instead per editor
settings. Simplifying theme tweaking and the following benefits:

* Set colors in one place, affect all tabs.
* Support for text colors for inactive and active tabs.
* Support for the new `Outline Selected` property.
* In the future sidebar tabs could support `Shaded` style.

The tabs region background color remains per-editor, to be able to
customize it in a way that fits the surrounding colors (sidebar region,
header, or navigation bar background).

See pull request for screenshots and details.

Pull Request: https://projects.blender.org/blender/blender/pulls/140288
2025-06-12 19:09:23 +02:00
Jacques Lucke
8ec9c62d3e Geometry Nodes: add Closures and Bundles behind experimental feature flag
This implements bundles and closures which are described in more detail in this
blog post: https://code.blender.org/2024/11/geometry-nodes-workshop-october-2024/

tl;dr:
* Bundles are containers that allow storing multiple socket values in a single
  value. Each value in the bundle is identified by a name. Bundles can be
  nested.
* Closures are functions that are created with the Closure Zone and can be
  evaluated with the Evaluate Closure node.

To use the patch, the `Bundle and Closure Nodes` experimental feature has to be
enabled. This is necessary, because these features are not fully done yet and
still need iterations to improve the workflow before they can be officially
released. These iterations are easier to do in `main` than in a separate branch
though. That's because this patch is quite large and somewhat prone to merge
conflicts. Also other work we want to do, depends on this.

This adds the following new nodes:
* Combine Bundle: can pack multiple values into one.
* Separate Bundle: extracts values from a bundle.
* Closure Zone: outputs a closure zone for use in the `Evaluate Closure` node.
* Evaluate Closure: evaluates the passed in closure.

Things that will be added soon after this lands:
* Fields in bundles and closures. The way this is done changes with #134811, so
  I rather implement this once both are in `main`.
* UI features for keeping sockets in sync (right now there are warnings only).

One bigger issue is the limited support for lazyness. For example, all inputs of
a Combine Bundle node will be evaluated, even if they are not all needed. The
same is true for all captured values of a closure. This is a deeper limitation
that needs to be resolved at some point. This will likely be done after an
initial version of this patch is done.

Pull Request: https://projects.blender.org/blender/blender/pulls/128340
2025-04-03 15:44:06 +02:00
Bastien Montagne
dd168a35c5 Refactor: Replace MEM_cnew with a type-aware template version of MEM_callocN.
The general idea is to keep the 'old', C-style MEM_callocN signature, and slowly
replace most of its usages with the new, C++-style type-safer template version.

* `MEM_cnew<T>` allocation version is renamed to `MEM_callocN<T>`.
* `MEM_cnew_array<T>` allocation version is renamed to `MEM_calloc_arrayN<T>`.
* `MEM_cnew<T>` duplicate version is renamed to `MEM_dupallocN<T>`.

Similar templates type-safe version of `MEM_mallocN` will be added soon
as well.

Following discussions in !134452.

NOTE: For now static type checking in `MEM_callocN` and related are slightly
different for Windows MSVC. This compiler seems to consider structs using the
`DNA_DEFINE_CXX_METHODS` macro as non-trivial (likely because their default
copy constructors are deleted). So using checks on trivially
constructible/destructible instead on this compiler/system.

Pull Request: https://projects.blender.org/blender/blender/pulls/134771
2025-03-05 16:35:09 +01:00
Brecht Van Lommel
c7a33a62a2 Cleanup: Directly include DNA_userdef_types.h and BLI_listbase.h
Instead of relying on them being included indirectly.

Pull Request: https://projects.blender.org/blender/blender/pulls/134406
2025-02-12 23:01:08 +01:00
Harley Acheson
5956752eb7 UI: Themeable RedAlert, Error, Warning, Info Colors
The "Red Alert" color is currently hard-coded, which causes problems in
themes.  It also has an Enum value of 0, which precludes using this
value as "unset". We also use Error, Warning, and Info colors that are
part of the Info Editor.  This PR moves these out of the Info Editor
and into the "State" part of the theme. And then makes TH_REDALERT use
the TH_ERROR color.

Pull Request: https://projects.blender.org/blender/blender/pulls/131127
2025-02-12 20:59:47 +01:00
Brecht Van Lommel
3725fad82f Cleanup: Various clang-tidy warnings in editors
Pull Request: https://projects.blender.org/blender/blender/pulls/133734
2025-01-31 17:03:17 +01:00
Richard Antalik
8ce5356522 VSE: Text editing in preview
This commit implements most features needed for simple text editing.

Active text strip can be edited in preview by pressing tab key, which
enabled text editing mode. With this mode active, outline matches text
boundary box and cursor is drawn.

Cursor can be moved with usual keys. Pressing shift starts selection.
Selection and navigation works when text is scaled or rotated. Mirrored
text is not supported in this PR. it can be done, but the text is
unreadable that way, so I kept it simple.

Multi line text is supported. Pressing return key starts new line.

Copy/paste operator uses OS copy paste buffer, so text from other apps
can be pasted.

Text is still limited to 512 characters. Text string property still
exists in side panel and is limited to single line. Individual
characters can not be styled in different way like in 3D viewport, but
the code is mostly ready for such feature.

Ref: #126547

Pull Request: https://projects.blender.org/blender/blender/pulls/127239
2024-12-19 15:56:54 +01:00
Harley Acheson
28e5c1412e UI: Editor Edge Highlighting
Customizable highlighting of editor edges that can be used to help
differentiate between areas, indicate active area, and/or help users
with visual impairment. Can be completely removed as well. This
replaces the active area header highlighting, which doesn't work for
transparent headers.

Pull Request: https://projects.blender.org/blender/blender/pulls/116684
2024-09-26 21:55:26 +02:00
Campbell Barton
473bd60164 Cleanup: clarify arguments using const or r_ prefixed return args 2024-09-26 15:03:24 +10:00
Jacques Lucke
6e5e01e630 Geometry Nodes: new For Each Geometry Element zone
This adds a new type of zone to Geometry Nodes that allows executing some nodes
for each element in a geometry.

## Features

* The `Selection` input allows iterating over a subset of elements on the set
  domain.
* Fields passed into the input node are available as single values inside of the
  zone.
* The input geometry can be split up into separate (completely independent)
  geometries for each element (on all domains except face corner).
* New attributes can be created on the input geometry by outputting a single
  value from each iteration.
* New geometries can be generated in each iteration.
    * All of these geometries are joined to form the final output.
    * Attributes from the input geometry are propagated to the output
      geometries.

## Evaluation

The evaluation strategy is similar to the one used for repeat zones. Namely, it
dynamically builds a `lazy_function::Graph` once it knows how many iterations
are necessary. It contains a separate node for each iteration. The inputs for
each iteration are hardcoded into the graph. The outputs of each iteration a
passed to a separate lazy-function that reduces all the values down to the final
outputs. This final output can have a huge number of inputs and that is not
ideal for multi-threading yet, but that can still be improved in the future.

## Performance

There is a non-neglilible amount of overhead for each iteration. The overhead is
way larger than the per-element overhead when just doing field evaluation.
Therefore, normal field evaluation should be preferred when possible. That can
partially still be optimized if there is only some number crunching going on in
the zone but that optimization is not implemented yet.

However, processing many small geometries (e.g. each hair of a character
separately) will likely **always be slower** than working on fewer larger
geoemtries. The additional flexibility you get by processing each element
separately comes at the cost that Blender can't optimize the operation as well.
For node groups that need to handle lots of geometry elements, we recommend
trying to design the node setup so that iteration over tiny sub-geometries is
not required.

An opposite point is true as well though. It can be faster to process more
medium sized geometries in parallel than fewer very large geometries because of
more multi-threading opportunities. The exact threshold between tiny, medium and
large geometries depends on a lot of factors though.

Overall, this initial version of the new zone does not implement all
optimization opportunities yet, but the points mentioned above will still hold
true later.

Pull Request: https://projects.blender.org/blender/blender/pulls/127331
2024-09-24 11:52:02 +02:00
Harley Acheson
aa78d43a05 UI: Multicolor Autokeying Indicator
Show the autokeying indicator (record button) on the Timeline header in
red when enabled. With a white outline on dark theme, or with a black
outline on light theme. The red color is user changeable.

Pull Request: https://projects.blender.org/blender/blender/pulls/126344
2024-08-16 23:16:40 +02:00
Christoph Lendenfeld
5427775fef Anim: Theme entry for time visualization
This patch adds two theme entries for data before/after the current frame.
Those entries control what color to use when displaying
reference data from a different point in time (motion path, onion skins).

They are under the `3D Viewport` section of the theme in the user preferences.

## User Facing Changes

### Grease Pencil

When `Custom Colors` is disabled it will now use the theme instead of the layer default color.
Currently this setting is enabled by default. Disable it to get Blender to use the theme.

### Motion Path
If Custom Color is disabled, read from the Theme.

### Annotations
If onion skin is enabled, and custom onion skin colors is disabled, read from the theme.

**Grease Pencil**
* previously the color used for onion skinning (without custom colors) was `U.gpencil_new_layer_col`. This is used in other places as well so it cannot be removed with this PR
* By default, custom colors are enabled with Grease Pencil objects. I specifically did **not** change that with this PR. I will instead let the GP module handle that on their terms.

This PR has been discussed in the Grease Pencil module meeting
https://devtalk.blender.org/t/2024-05-21-grease-pencil-module-meeting/34755#meeting-notes-2
and in the A&R module meeting
https://devtalk.blender.org/t/2024-05-24-animation-rigging-module-meeting/34813#patches-review-decision-time-4

Pull Request: https://projects.blender.org/blender/blender/pulls/120558
2024-06-28 14:59:41 +02:00
Campbell Barton
cf37424203 Cleanup: use const pointers, quiet cppcheck unreadVariable warning 2024-04-17 11:36:38 +10:00
Campbell Barton
20b0805213 Cleanup: use const pointers where possible 2024-04-16 12:27:47 +10:00
Sybren A. Stüvel
51e1f29a68 Anim: Add new keyframe type 'GENERATED'
Add a new keyframe type named 'generated', which is meant to indicate
that the key was set by some automated tool (like an add-on), rather
than manually by an animator.

This is meant for tooling that needs to create keys in a repeatable way.
With this new key type, the tool can know which keys it generated
before, and thus those can be removed and re-generated.

Pull Request: https://projects.blender.org/blender/blender/pulls/120564
2024-04-15 10:42:54 +02:00
Campbell Barton
78413ff4e2 Fix error resetting the theme which would add a new theme
Regression caused by [0], also correct memcpy calls that overwrite
listbase link variables and the theme name, note that this is more a
code-correctness issue as it wouldn't cause user visible bugs.

[0]: adbec9eea9
2024-04-12 16:54:57 +10:00
Campbell Barton
adbec9eea9 Theme: reset the default theme fails & fix invalid ListBase links
If the theme's name was changed, resetting the default theme did
nothing from a user perspective.

Internally it would add the Default theme to the end of the list where
it was ignored, then the default theme overwrote the data including the
next/prev links causing the ListBase to be invalid.

Resolve by ensuring the default theme is always first and use the
MEMCPY_STRUCT_AFTER macro to prevent links being overwritten.
2024-04-11 17:44:27 +10:00
Hans Goudey
8b514bccd1 Cleanup: Move remaining GPU headers to C++
Pull Request: https://projects.blender.org/blender/blender/pulls/119807
2024-03-23 01:24:18 +01:00
Hans Goudey
91e54fdd83 Cleanup: Move BLO_readfile.h to C++
I added a new BLO_userdef_default.h header to contain declarations of
two global variables that are still defined in C files. Use of designated
initializers for large structs make those files harder to change.
Arguably this is a better header for them anyway.

Pull Request: https://projects.blender.org/blender/blender/pulls/118015
2024-02-09 13:41:30 +01:00
Hans Goudey
7fa5fc02b7 Cleanup: Move BLF headers to C++ 2024-01-31 14:04:56 -05:00
Bastien Montagne
d8d44a62f7 Cleanup: Move BKE_appdir.h to full Cpp header BKE_appdir.hh. 2024-01-21 19:42:13 +01:00
Bastien Montagne
3acb64e7ac BKE_main: move header to be a fully CPP one.
Pull Request: https://projects.blender.org/blender/blender/pulls/115681
2023-12-01 20:38:54 +01:00
Gilberto Rodrigues
dfd1b63cc7 UI: improve mesh edge highlighting
Changes to edit mode mesh overlays, use hue shift instead of color
fading/darkening for selection mode visual differentiation, and some
theme changes to improve the display of mesh edges and faces with good
selection visibility.

- Removed "edge" toggle from edit mode overlays panel.
- No longer halves the edge and face alpha depending on selection mode.
  Half the face alpha in wire-frame mode. For better visibility on most
  themes.

Ref !111431
2023-11-02 22:09:17 +11:00
Aras Pranckevicius
d973355b3a Cleanup: reduce amount of math-related includes
Using ClangBuildAnalyzer on the whole Blender build, it was pointing
out that BLI_math.h is the heaviest "header hub" (i.e. non tiny file
that is included a lot).

However, there's very little (actually zero) source files in Blender
that need "all the math" (base, colors, vectors, matrices,
quaternions, intersection, interpolation, statistics, solvers and
time). A common use case is source files needing just vectors, or
just vectors & matrices, or just colors etc. Actually, 181 files
were including the whole math thing without needing it at all.

This change removes BLI_math.h completely, and instead in all the
places that need it, includes BLI_math_vector.h or BLI_math_color.h
and so on.

Change from that:
- BLI_math_color.h was included 1399 times -> now 408 (took 114.0sec
  to parse -> now 36.3sec)
- BLI_simd.h 1403 -> 418 (109.7sec -> 34.9sec).

Full rebuild of Blender (Apple M1, Xcode, RelWithDebInfo) is not
affected much (342sec -> 334sec). Most of benefit would be when
someone's changing BLI_simd.h or BLI_math_color.h or similar files,
that now there's 3x fewer files result in a recompile.

Pull Request #110944
2023-08-10 14:51:40 +03:00
ok_what
5f0a8759b0 VSE: Improve drawing of strip title and preview
This patch includes set of smaller changes to address visual
inconsistencies and bugs:

- Strip previews are drawn under title bar
- All strip previews now disappear when there isn't enough space for
  drawing
- Like the sound strip, the color strip expands to fill the whole strip
  when there is little vertical space, "taking over" the strip title
  Color is more important visual indicator than the name of the strip
- Disabling strip title no longer disables strip handle frame previews
- All strip previews are now be affected by the "Show overlays" toggle
- Turning off strip text overlay no longer makes the color strip
  preview disappear
2023-08-07 21:35:45 +02:00
Hans Goudey
ffe4fbe832 Cleanup: Move editors headers to C++
See #103343

Pull Request: https://projects.blender.org/blender/blender/pulls/110820
2023-08-05 02:57:52 +02:00
Hans Goudey
bc8c892c65 Cleanup: Move WM headers to C++
Also move a few more headers that included WM headers.

Pull Request: https://projects.blender.org/blender/blender/pulls/110815
2023-08-04 23:11:22 +02:00
Julian Eisel
98142f5e35 UI: Asset Shelf Support (Experimental Feature)
No user visible changes expected, except of new experimental feature
option.

------------------------------------------------------------------------------

This introduces asset shelves as a new standard UI element for accessing
assets. Based on the current context (like the active mode and/or tool), they
can provide assets for specific workflows/tasks. As such they are more limited
in functionality than the asset browser, but a lot more efficient for certain
tasks.

The asset shelf is developed as part of the brush assets project (see #101895),
but is also meant to replace the current pose library UI.

Support for asset shelves can quite easily be added to different editor types,
the following commit will add support for the 3D View. If an editor type
supports asset shelves, add-ons can chose to register an asset shelf type for
an editor with just a few lines of Python.

It should be possible to entirely remove `UILayout.asset_view_template()` once
asset shelves are non-experimental.

Some changes are to be expected still, see #107881.

Task: #102879
Brush asset workflow blog post: https://code.blender.org/2022/12/brush-assets-workflow/
Initial technical documentation: https://developer.blender.org/docs/asset_system/user_interface/asset_shelf/

Pull Request: #104831
2023-08-03 16:54:39 +02:00
Hans Goudey
731d296f35 Cleanup: Move mesh related blenkernel headers to C++
See #103343

Pull Request: https://projects.blender.org/blender/blender/pulls/110730
2023-08-02 22:14:18 +02:00
Jacques Lucke
3d73b71a97 Geometry Nodes: new Repeat Zone
This adds support for running a set of nodes repeatedly. The number
of iterations can be controlled dynamically as an input of the repeat
zone. The repeat zone can be added in via the search or from the
Add > Utilities menu.

The main use case is to replace long repetitive node chains with a more
flexible alternative. Technically, repeat zones can also be used for
many other use cases. However, due to their serial nature, performance
is very  sub-optimal when they are used to solve problems that could
be processed in parallel. Better solutions for such use cases will
be worked on separately.

Repeat zones are similar to simulation zones. The major difference is
that they have no concept of time and are always evaluated entirely in
the current frame, while in simulations only a single iteration is
evaluated per frame.

Stopping the repetition early using a dynamic condition is not yet
supported. "Break" functionality can be implemented manually using
Switch nodes in the  loop for now. It's likely that this functionality
will be built into the repeat zone in the future.
For now, things are kept more simple.

Remaining Todos after this first version:
* Improve socket inspection and viewer node support. Currently, only
  the first iteration is taken into account for socket inspection
  and the viewer.
* Make loop evaluation more lazy. Currently, the evaluation is eager,
  meaning that it evaluates some nodes even though their output may not
  be required.

Pull Request: https://projects.blender.org/blender/blender/pulls/109164
2023-07-11 22:36:10 +02:00
Sergey Sharybin
c1bc70b711 Cleanup: Add a copyright notice to files and use SPDX format
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.

This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.

Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.

Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:

    https://reuse.software/faq/
2023-05-31 16:19:06 +02:00
Jacques Lucke
493c4dd65b Geometry Nodes: add theme option for simulated frames in timeline
The new theme setting for the dope sheet (timeline) allows changing the
color of the bar that shows which frames are cached/baked. The
invalid/cached/baked status is differentiated by hardcoded transparency
values. In theory, those could be separate theme settings though.

Pull Request: https://projects.blender.org/blender/blender/pulls/107738
2023-05-10 14:19:27 +02:00
Jacques Lucke
0de54b84c6 Geometry Nodes: add simulation support
This adds support for building simulations with geometry nodes. A new
`Simulation Input` and `Simulation Output` node allow maintaining a
simulation state across multiple frames. Together these two nodes form
a `simulation zone` which contains all the nodes that update the simulation
state from one frame to the next.

A new simulation zone can be added via the menu
(`Simulation > Simulation Zone`) or with the node add search.

The simulation state contains a geometry by default. However, it is possible
to add multiple geometry sockets as well as other socket types. Currently,
field inputs are evaluated and stored for the preceding geometry socket in
the order that the sockets are shown. Simulation state items can be added
by linking one of the empty sockets to something else. In the sidebar, there
is a new panel that allows adding, removing and reordering these sockets.

The simulation nodes behave as follows:
* On the first frame, the inputs of the `Simulation Input` node are evaluated
  to initialize the simulation state. In later frames these sockets are not
  evaluated anymore. The `Delta Time` at the first frame is zero, but the
  simulation zone is still evaluated.
* On every next frame, the `Simulation Input` node outputs the simulation
  state of the previous frame. Nodes in the simulation zone can edit that
  data in arbitrary ways, also taking into account the `Delta Time`. The new
  simulation state has to be passed to the `Simulation Output` node where it
  is cached and forwarded.
* On a frame that is already cached or baked, the nodes in the simulation
  zone are not evaluated, because the `Simulation Output` node can return
  the previously cached data directly.

It is not allowed to connect sockets from inside the simulation zone to the
outside without going through the `Simulation Output` node. This is a necessary
restriction to make caching and sub-frame interpolation work. Links can go into
the simulation zone without problems though.

Anonymous attributes are not propagated by the simulation nodes unless they
are explicitly stored in the simulation state. This is unfortunate, but
currently there is no practical and reliable alternative. The core problem
is detecting which anonymous attributes will be required for the simulation
and afterwards. While we can detect this for the current evaluation, we can't
look into the future in time to see what data will be necessary. We intend to
make it easier to explicitly pass data through a simulation in the future,
even if the simulation is in a nested node group.

There is a new `Simulation Nodes` panel in the physics tab in the properties
editor. It allows baking all simulation zones on the selected objects. The
baking options are intentially kept at a minimum for this MVP. More features
for simulation baking as well as baking in general can be expected to be added
separately.

All baked data is stored on disk in a folder next to the .blend file. #106937
describes how baking is implemented in more detail. Volumes can not be baked
yet and materials are lost during baking for now. Packing the baked data into
the .blend file is not yet supported.

The timeline indicates which frames are currently cached, baked or cached but
invalidated by user-changes.

Simulation input and output nodes are internally linked together by their
`bNode.identifier` which stays the same even if the node name changes. They
are generally added and removed together. However, there are still cases where
"dangling" simulation nodes can be created currently. Those generally don't
cause harm, but would be nice to avoid this in more cases in the future.

Co-authored-by: Hans Goudey <h.goudey@me.com>
Co-authored-by: Lukas Tönne <lukas@blender.org>

Pull Request: https://projects.blender.org/blender/blender/pulls/104924
2023-05-03 13:18:59 +02:00
Campbell Barton
6859bb6e67 Cleanup: format (with BraceWrapping::AfterControlStatement "MultiLine") 2023-05-02 09:37:49 +10:00
Harley Acheson
f78f05c749 Refactor: U.dpi_fac -> U.scale_factor
A renaming of UI scale factors from names that imply a relationship to
monitor DPI to names that imply that they simply change "scale"

Pull Request: https://projects.blender.org/blender/blender/pulls/105750
2023-03-17 04:19:05 +01:00