Commit Graph

19408 Commits

Author SHA1 Message Date
Dalai Felinto
f43561eae6 Function Nodes: Input Vector
Ref: T82651

Normally people use "Combine XYZ" to input a vector, but it is more
interesting to have an explicit vector input.

So this is basically "Combine XYZ" without any input sockets, the values
are stored in the node itself.

Differential Revision: https://developer.blender.org/D9885
2020-12-18 13:03:27 +01:00
Jeroen Bakker
4f9e21bdc9 Fix T82591: Performance regression when rendering at very high resolution
This patch introduces a partial update of GPUTexture. When rendering
a large image the GPUTexture could have been scaled. The old implementation
would rescale the image on CPU and create a new GPUTexture. This
resulted in flooding the PCI bus.

The new solution would only scale and upload the parts of the GPUTexture
that has been changed. It does this by keeping track of areas of 256x256
pixels. When something changes the tiles that cover that changes will be
rescaled and uploaded the next time the GPUTexture is requested.

Test situation: Default Cube, 4 samples, 19200x10800 tile size 512.

Blender 2.83.9: 4m27s.
Blender 2.91:   20+m (regression)
This patch:     1m01s.

There is still room for more optimizations:
* Reduce the time that an image is locked.
** Use task scheduling to update the tiles of an image.
** Generic optimization of the ImBuf scale method.

Maniphest Tasks: T82591

Differential Revision: https://developer.blender.org/D9591
2020-12-18 09:18:44 +01:00
Hans Goudey
9dbc014af7 Cleanup: Various clang tidy warnings
There are more in the new mesh fairing code and in the poisson
distribution code, this commit doesn't fix those.
2020-12-17 22:53:47 -06:00
Hans Goudey
48ddb94a26 Geometry Nodes: Point separate and attribute compare nodes
This patch adds two related nodes, a node for separating points
and mesh vertices based on a boolean attribute input, and a node
for creating boolean attributes with comparisons.

See the differential for an example file and video.

Point Separate (T83059)
The output in both geometries is just point data, contained in the mesh
and point cloud components, depending which components had data in the
input geometry. Any points with the mask attribute set to true will be
moved from the first geometry output to the second. This means that
for meshes, all edge and face data will be removed. Any point domain
attributes are moved to the correct output geometry as well.

Attribute Compare (T83057)
The attribute compare does the "Equal" and "Not Equal" operations by
comparing vectors and colors based on their distance from each other.
For other operations, the comparison is between the lengths of the
vector inputs. In general, the highest complexity data type is used
for the operation, and a new function to determine that is added.

Differential Revision: https://developer.blender.org/D9876
2020-12-17 12:22:47 -06:00
Hans Goudey
c9f8f7915f Geometry Nodes: Make random attribute node stable
Currently, the random attribute node doesn't work well for most
workflows because for any change in the input data it outputs
completely different results.

This patch adds an implicit seed attribute input to the node, referred
to by "id". The attribute is hashed for each element using the CPPType
system's hash method, meaning the attribute can have any data type.
Supporting any data type is also important so any attribute can be
copied into the "id" attribute and used as a seed.

The "id" attribute is an example of a "reserved name" attribute,
meaning attributes with this name can be used implicitly by nodes like
the random attribute node. Although it makes it a bit more difficult
to dig deeper, using the name implicitly rather than exposing it as an
input should make the system more accessible and predictable.

Differential Revision: https://developer.blender.org/D9832
2020-12-17 07:43:31 -06:00
Bastien Montagne
cf2ebaf27c Fix T83875: Converting Proxy to override crashes blender.
Some weird proxies apparently can have a local collection instancing...
Not sure this is even really valid for proxies, but in any case we
cannot override that, just detect and properly cancel the operation
then.

Should be backported to 2.91.1 should we do it.
2020-12-17 12:05:30 +01:00
Jacques Lucke
0eedba328d Geometry Nodes: add Attribute Color Ramp node
Differential Revision: https://developer.blender.org/D9861

Ref T82585.
2020-12-17 11:56:18 +01:00
Ray Molenkamp
7e535499d5 Clean-up: Fix build warning with MSVC
Callback function was using int while update_render_passes_cb_t was
using eNodeSocketDatatype leading to a build warning about different
argument types with MSVC.
2020-12-16 21:03:42 -07:00
Richard Antalik
5713626422 VSE: Improve motion-picture workflow
This commit resolves problem introduced in e1665c3d31 - it was
difficult to import media at their original resolution.
This is done by using original resolution as reference for scale.

All crop and strip transform values and their animation is converted
form old files.

To make both workflows easy to use, sequencer tool settings have been
created with preset for preffered scaling method. This setting is in
sequencer timeline header and add image or movie strip operator
properties.

Two new operators have been added:
`sequencer.strip_transform_fit` operator with 3 options: Scale To Fit,
Scale to Fill and Stretch To Fill.
Operator can fail if strip image or video is not loaded currently, this
case should be either sanitized or data loaded on demand.

`sequencer.strip_transform_clear` operator with 4 options:
Clear position, scale, rotation and all (previous 3 options combined).

Reviewed By: sergey, fsiddi

Differential Revision: https://developer.blender.org/D9582
2020-12-16 20:38:28 +01:00
Hans Goudey
c484b54453 Geometry Nodes: Boolean attribute type
This adds a boolean attribute and custom data type, to be used in the
point separate node. It also adds it as supported data types in the
random attribute and attribute fill nodes.

There are more clever ways of storing a boolean attribute that make
more sense in certain situations-- sets, bitfields, and others, this
commit keeps it simple, saving those changes for when there is a proper
use case for them. In any case, we will still probably always want the
idea of a boolean attribute.

Differential Revision: https://developer.blender.org/D9818
2020-12-16 12:33:13 -06:00
Pablo Dobarro
d23894d3ef Sculpt: Multires Displacement Smear
This tool implements smearing for multires displacement over the limit
surface, similar to how smearing for colors and topology slide works.
When used the displacement values of the vertices "slide" over the
topology, creating the effect of smearing the surface detail.

As the brush just modifies displacement values instead of coordinates,
the total displacement of the affected area doesn't change. This means
that this smearing effect can be used multiple times over the same area
without generating any artifacts in the topology.

When the brush is used with the pinch or expand smear modes,
displacement differences are pushed into the same area, creating hard
surface effects without pinching the topology.

As any other brush that relies on the limit surface (like displacement
erasers), this will work better after using apply base.

Reviewed By: sergey, JulienKaspar, dbystedt

Differential Revision: https://developer.blender.org/D9659
2020-12-16 17:08:19 +01:00
Ray Molenkamp
684c771263 Fix: Python warning in windows debug builds
When doing a debug build on windows, blender will
start with the following warning:

"Unable to find the python binary, the multiprocessing
module may not be functional!"

The root cause for this issue is: for a debug build
the python binary is called python_d.exe rather than
just python.exe

This change fixes BKE_appdir_program_python_search
to look for the _d suffix for debug builds on windows

Differential Revision: https://developer.blender.org/D9775

Reviewed by: Campbell Barton
2020-12-16 07:27:47 -07:00
Bastien Montagne
25543e6983 LibOverride: Better handling of missing linked data during resync.
We do not generate overrides for missing data-blocks (aka placeholder
ones) anymore, and properly delete the remaining old overrides of those
during the resync process.

This should prevent constant 'missing data-blocks' messages when opening
blend files with overrides whose libraries have beed edited.

Issue reported by @andy from Blender studio, thanks.
2020-12-16 15:12:56 +01:00
Jeroen Bakker
29f923b27c Fix T83557: Alpha blend + emissive colors renders white artifacts
Issue was that not all code paths were taken to determine if
the GPU Texture was premultiplied or not. In this case the result
was set to unpremultiplied what is incorrect.

This fixes broken test case image alpha blend from image_colorspace.
2020-12-16 13:57:28 +01:00
Jacques Lucke
4c26dd430d Geometry Nodes: rename node to Attribute Randomize
Previously, the node was called Random Attribute. For consistency reasons,
we move the "Attribute" part of the name to the front.
2020-12-16 13:31:56 +01:00
Campbell Barton
a869a61c88 Cleanup: sort struct blocks 2020-12-16 16:26:23 +11:00
Campbell Barton
b347c4e9ca Cleanup: remove redundant struct declarations 2020-12-16 16:25:56 +11:00
Peter Fog
fad80a95fd VSE: Add Overlay popover panels
Add panels with overlay settings for strips and preview and overlay
enable/disable button.

Entries from the View menus moved to the overlay panels, which will
simplify cluttered View menus.

Additional options have been added:
 - Strip Name
 - Strip Source(ex. path)
 - Strip Duration

So users can now select what info they need to see on the strips. When
No text is displayed, waveforms are drawn in full height.

Reviewed By: ISS, HooglyBoogly, pablovazquez

Differential Revision: https://developer.blender.org/D9751
2020-12-15 23:50:18 +01:00
Pablo Dobarro
c9b4d75336 Sculpt: Fair Face Sets operation for Face Set Edit
This implements a mesh fairing algorithm and implements the fair
operations for Face Set edit. This edit operations create a smooth as
possible geometry patch in the area of the selected Face Set.

The mesh fairing algorithm is designed by Brett Fedack for the addon
"Mesh Fairing": https://github.com/fedackb/mesh-fairing, with some
modifications:

- The main fairing function in BKE_mesh_fair.h does not triangulate
 the mesh. For the test I did in sculpt mode results are good enough
 without triangulating the topology. Depending on the use and the
 result quality needed for a particular tool, the mesh can be
 triangulate in the affected area before starting fairing.

- Cotangents loop weights are not implemented yet. The idea is to
also expose the vertex and loop weights in a different function in
 case a tool needs to set up custom weights.

This algorithm will also be used to solve the limitations of line
project and implement the Lasso Project and Polyline Project tools.
It can also be used in tools in other areas of Blender, like Edit Mode
or future retopology tools.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D9603
2020-12-15 20:32:58 +01:00
Hans Goudey
d59e87acf0 Cleanup: Use nullptr instead of NULL in C++ code 2020-12-15 12:41:41 -06:00
Julian Eisel
c6692014cf Fix redundant declaration warning
Function was declared twice (caused by merge conflicts) which GCC would
rightfully complain about.
2020-12-15 17:19:55 +01:00
Julian Eisel
7dc8db7cd1 Fix failing assert when generating material preview
The `!BKE_previewimg_is_finished()` in `icon_preview_startjob_all_sizes()`
would fail.

Caused by 990bd9acf243ae. We have to be more picky about tagging previews as
unfinished after file read. But we also have to consider files stored in old
versions and set the unfinished tag as needed.
2020-12-15 17:03:49 +01:00
Julian Eisel
68e4a90240 Assets: Better path for the default asset library
In D9722 we agreed on using `[home-directory]/Documents/Blender/Assets` for
the default asset library. I just forgot to do the change before committing.

(The default repository is just a named path, it's *not* a default library with
bundled assets.)
2020-12-15 17:03:48 +01:00
Julian Eisel
303aceb917 Fix asset previews not showing in "Current File" repository after reading
Previews would be flagged as unfinished when reading. Instead clear the flag
and always consider them finished upon reading. If we wouldn't do this, the
File Browser would keep running the preview updating to wait for the preview to
finish. It could be smarter and also check if there's actually a preview job
running.
Instead, I think it will just display an unfilled buffer for now. Up until
today we wouldn't even know if a stored preview is finished or not, so it would
always assume they are finished. We do the same now, but have the option to
make it smarter.
2020-12-15 17:03:48 +01:00
Julian Eisel
70474e1a7c Asset System: Prepare File Browser backend for the Asset Browser
The Asset Browser will be a sub-editor of the File Browser. This prepares the
File Browser code for that.

**File-Lists**
* Support loading assets with metadata read from external files into the
  file-list.
* New main based file-list type, for the "Current File" asset library.
* Refresh file-list when switching between browse modes or asset libraries.
* Support empty file-lists (asset library with no assets).
* Store file previews as icons, so scripts can reference them via icon-id. See
  previous commit.

**Space Data**
* Introduce "browse mode" to differeniate between file and asset browsing.
* Add `FileAssetSelectParams` to `SpaceFile`, with `FileSelectParams` as base.
  Makes sure data is separated between asset and file browsing when switching
  between them. The active params can be obtained through
  `ED_fileselect_get_active_params()`.
* `FileAssetSelectParams` stores the currently visible asset library ID.
* Introduce file history abstraction so file and asset browsing can keep a
  separate history (previous and next directories).

**General**
* Option to only show asset data-blocks while file browsing (not exposed here).
* Add "active_file" context member, so scripts can get and display info about
  the active file.
* Add "active_id" context member, so `ED_OT_lib_id_load_custom_preview` can set
  a custom ID preview. (Only for "Current File" asset library)
* Expose some of `FileDirEntry` in RNA as (non-editable). That way scripts can
  obtain name, preview icon and asset-data.

Part of the first Asset Browser milestone. Check the #asset_browser_milestone_1
project milestone on developer.blender.org.

Differential Revision: https://developer.blender.org/D9724

Reviewed by: Bastien Montagne
2020-12-15 17:03:48 +01:00
Julian Eisel
e413c80371 Asset System: Support custom asset library paths through Preferences
One of the core design aspects of the Asset Browser is that users can "mount"
custom asset libraries via the Preferences. Currently an asset library is just
a directory with one or more .blend files in it. We could easily support a
single .blend file as asset library as well (rather than a directory). It's
just disabled currently.

Note that in earlier designs, asset libraries were called repositories.

Idea is simple: In Preferences > File Paths, you can create custom libraries,
by setting a name and selecting a path. The name is ensured to be unique. If
the name or path are empty, the Asset Browser will not show it in the list of
available asset libraries.
The library path is not checked for validity, the Asset Browser will allow
selecting invalid libraries, but show a message instead of the file list, to
help the user understand what's going on.
Of course the actual Asset Browser UI is not part of this commit, it's in one
of the following ones.

{F9497950}

Part of the first Asset Browser milestone. Check the #asset_browser_milestone_1
project milestone on developer.blender.org.

Differential Revision: https://developer.blender.org/D9722

Reviewed by: Brecht Van Lommel, Hans Goudey
2020-12-15 17:03:48 +01:00
Julian Eisel
9363132c86 Asset System: Various changes to previews in preparation for Asset Browser
* Support defining (not necessarily rendering) icons in threads. Needed so the
  File Browser can expose file previews with an icon-id to scripts.
** For that, ported `icons.c` to C++, to be able to use scope based mutex locks
   (cleaner & safer code). Had to do some cleanups and minor refactoring for
   that.
* Added support for ImBuf icons, as a decent way for icons to hold the file
  preview buffers.
* Tag previews as "unfinished" while they render in a thread, for the File
  Browser to dynamically load previews as they get finished.
* Better handle cases where threaded preview generation is requested, but the
  ID type doesn't support it (fallback to single threaded). This is for general
  sanity of the code (as in, safety and cleanness)
* Enabled asset notifier for custom preview loading operator, was just disabled
  because `NC_ASSET` wasn't defined in master yet.

Part of the first Asset Browser milestone. Check the #asset_browser_milestone_1
project milestone on developer.blender.org.

Differential Revision: https://developer.blender.org/D9719

Reviewed by: Bastien Montagne, Brecht Van Lommel
2020-12-15 17:03:45 +01:00
Julian Eisel
c25e031049 Asset System: "Mark Asset" & "Clear Asset" operators and UI integration
This makes it possible to turn data-blocks into assets and back into normal
data-blocks. A core design decision made for the asset system is that not every
data-block should be an asset, because not every data-block is made for reuse.
Users have to explicitly mark data-blocks as assets.

Exposes "Mark Asset" and "Clear Asset" in Outliner context menus (currently ID
Data submenu) and button context menus. We are still not too happy with the
names, they may change.

This uses the new context members to pass data-blocks to operators, added in
af008f5532 and 0c1d476923.

Part of the first Asset Browser milestone. Check the #asset_browser_milestone_1
project milestone on developer.blender.org.

Differential Revision: https://developer.blender.org/D9717

Reviewed by: Brecht Van Lommel
2020-12-15 17:03:00 +01:00
Julian Eisel
b71eb3a105 Asset System: Data-block asset metadata storage, reading and API
Asset metadata is what turns a regular data-block into an asset. It is a small
data-structure, but a key part of the technical design of the asset system.

The design foresees that asset data-blocks store an `ID.asset_data` pointer of
type `AssetMetaData`. This data **must not** have dependencies on other
data-blocks or data-block data, it must be an independent unit. That way we can
read asset-metadata from .blends without reading anything else from the file.
The Asset Browser will use this metadata (together with the data-block name,
preview and file path) to represent assets in the file list.

Includes:
* New `ID.asset_data` for asset metadata.
* Asset tags, description and custom properties.
* BKE code to manage asset meta-data and asset tags.
* Code to read asset data from files, without reading IDs.
* RNA for asset metadata (including tags)

Part of the first Asset Browser milestone. Check the #asset_browser_milestone_1
project milestone on developer.blender.org.

Differential Revision: https://developer.blender.org/D9716

Reviewed by: Bastien Montagne, Brecht Van Lommel
2020-12-15 17:03:00 +01:00
Jacques Lucke
0d58eabee6 Geometry Nodes: support evaluating mesh object to geometry set
This implements the design proposed in T83357.

The goal is to allow the geometry nodes modifier on mesh objects to
output instances and potentially other geometry types. Both problems
are tackled by allowing mesh objects to evaluate to a geometry set,
instead of just a single mesh id data block. The geometry set can
contain a mesh but also other data like instances and a point cloud.

I can't say that I'm sure that this commit won't introduce bugs. Mainly
the temporary object creation during rendering seems a bit brittle.
BUT, we can be reasonably sure that this commit will not introduce
regressions (at least not ones, that are hard to fix). This is because
the code has been written in a way that minimizes changes for existing
functionality.

Given that we intend to hide the point cloud object for the next release,
we won't even have to worry about temporary object creation for now.

An important part of the technical design is to make sure that
`ObjectRuntime->data_eval` contains the same data before and after this
patch. This helps to make sure, that existing code paths are impacted as
little as possible.

Instead of fully replacing `data_eval`, there is `geometry_set_eval`,
which contains all the geometry components an object evaluated to
(including the data referenced by `data_eval`).

For now, not much code has to be aware of `geometry_set_eval`. Mainly
the depsgraph object iterator and the instances system have to know
about it.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D9851
2020-12-15 12:42:10 +01:00
Jeroen Bakker
d8db5cb600 Fix: upward compatibility of cryptomatte matte id.
The matte_id is stored in a different structure in 2.92. This patch will
write the old matte_id field so the files can be opened correctly in
older versions.
2020-12-15 12:17:31 +01:00
Jacques Lucke
1b130f17c9 Cleanup: make format 2020-12-15 12:01:45 +01:00
Jeroen Bakker
35368e8bfc Fix: mattes of cryptomatte node lost after write
Fix an issue introduced by {f4df036bc497} where the read/write
code missed to store and read the mattes from its new location.
2020-12-15 11:15:01 +01:00
Campbell Barton
612598acd7 Cleanup: doxy comments (use colon after parameter name)
Also remove colon after `\note`.
2020-12-15 12:34:25 +11:00
Campbell Barton
001f2c5d50 Cleanup: spelling 2020-12-15 12:34:25 +11:00
Campbell Barton
525364be31 Cleanup: reduce indirect DNA header inclusion
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.
2020-12-15 12:34:14 +11:00
Campbell Barton
1e38e32cf6 Cleanup: type check failure, discarded-qualifiers warnings
Caused by 7f6ffe9195
2020-12-15 10:27:36 +11:00
Wayde Moss
6074636387 NLA: Action Strip Defaults Sync Length On
See T82309#1055564 {T63675} and their duplicates for how Default-off
can cause confusion.

This is just for convenience since it allows animators to keyframe
outside of the strip's bounds by default. This was likely off by
default before since Syncing Length would undesirably shift the whole
animation after leaving tweak mode (fixed by {D7602}) and the animator
wasn't able to keyframe outside the strip bounds anyways
(fixed by {D7533}). Now it's better if the flag was on by default.
While the animator is still roughly developing their animation NLA-wise
they won't have to worry about strip bound keying failures. When they
are more certain of the strip bounds, they can disable the flag to
prevent affecting the rest of the NLA system.

Reviewed By: sybren

Differential Revision: https://developer.blender.org/D9661
2020-12-14 17:32:14 -05:00
Wayde Moss
7f6ffe9195 Nla Refactor: Blend functions explicit Div0 check
It's an explicit check to prevent division by zero if caller hasn't
done the check. Future patch {D8867} will not use the nla remap
function and thus not do the check. This patch also replaces some
float (==) equality checks with IS_EQF().

Split from {D9247}

Reviewed By: sybren

Differential Revision: https://developer.blender.org/D9694
2020-12-14 17:11:41 -05:00
Wayde Moss
fa6bf8f5b6 Nla Refactor: nlaevalchan_validate_index_ex()
And removes redundant index local variable. Future patches {D8296} and
{D8867} make use of this function.

No functional changes.
Split from {D9247}

Reviewed By: sybren

Differential Revision: https://developer.blender.org/D9693
2020-12-14 17:06:59 -05:00
Jeroen Bakker
f4df036bc4 Cryptomatte: Data structure in compositor node
This changes the way how the mattes are stored in the compositor node. This used to
be a single string what was decoded/encoded when needed. The new data structure
stores all entries in `CryptomatteEntry` and is converted to the old `matte_id`
property on the fly.

This is done for some future changes in the workflow where a more structured
approach leads to less confusing and easier to read code.
2020-12-14 16:14:38 +01:00
Julian Eisel
e3068f38c8 Fix memory leak and possible other issues with custom previews
Mistake in 812ea91842. Fixed that same one before in the branch, I may have
brought it back when resolving merge conflicts.
2020-12-14 14:57:30 +01:00
Julian Eisel
4b0396695c UI/Assets: Support generating object preview images
Object previews are really helpful for visual data-block selection, like asset
browsing. Having them be generative should also be quite handy and should work
well enough in many, if not most cases.

What this does is simple:
* Place the object (actually a deep copy of it, for thread safety) in a virtual
  .blend into an empty scene/view-layer.
* Add a camera, point it towards the front of the object, assuming that means
  pointing towards its +Y axis.
* Use "Camera Fit Frame to Selected" logic to put the object into frame.
* Create a threaded off-screen render.

Of course, such an automatic preview will not work in all situations. E.g. it
currently does a bad job capturing a single plane. We could add options for
more advanced automatic previews, but probably custom previews is more
important, which I committed already (812ea91842).

Part of the first Asset Browser milestone. Check the #asset_browser_milestone_1
project milestone on developer.blender.org.

Reviewed as part of https://developer.blender.org/D9719.
Reviewed by: Bastien Montagne, Brecht Van Lommel
2020-12-14 13:17:57 +01:00
Jacques Lucke
732d0b458b Blenkernel: move DerivedMesh.c to c++
Required changes to make it compile with clang tidy:
* Use c++ includes like (e.g. climits instead limits.h).
* Insert type casts when casting from void* to something else.
* Replace NULL with nullptr.
* Insert casts from int to enum.
* Replace designed initializers (not supported in C++ yet).
* Use blender::Vector instead of BLI_array_staticdeclare (does not compile with C++).
* Replace typedef statements.

Ref T83357.
2020-12-14 13:08:02 +01:00
Julian Eisel
812ea91842 UI/Assets: Operator to load custom preview images for data-blocks
No automatic preview generation will ever be good enough to cover all cases
well. So custom preview images are a must for a preview driven data-block
selection - like for asset browsing.

The operator simply allows selecting an image file, which will then be read and
copied into the data-blocks preview (resized if necessary).

There's no UI for this currently and the operator won't be available in the
search menu yet. It will later once the Asset Browser UI is merged.

Reviewed as part of https://developer.blender.org/D9719.
Reviewed by: Bastien Montagne, Brecht Van Lommel
2020-12-14 12:16:59 +01:00
Bastien Montagne
f5a019ed43 LibOverride: Do not store some heavy data from override IDs.
This commit removes geometry from meshes and shapekeys, and embedded
files, from liboverride IDs.

This data is never overrideable, there is no reason to store extra
useless copies of it in production files.

See T78944.

Note that we may add more data to be skipped on write for liboverrides
in the future, but this commit should address all the most important
cases already.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D9810
2020-12-14 11:37:01 +01:00
Campbell Barton
088df2bb03 Fix missing string escape for RNA path creation 2020-12-14 20:44:26 +11:00
Campbell Barton
b8ae90263a Fix version patching sequence strip alpha from 2.4x files
Regression in 4f5f868a52
2020-12-14 20:44:26 +11:00
Falk David
3eb6649453 GPencil: Add uniform subdivide BKE to improve interpolation
This patch introduces a new BKE function that performs a uniform subdivide.

The goal of this function is to subdivide the stroke to reach a target number of points while maintaining its shape, color, and weights.
This is done by repeatedly subdividing the longest edge in the stroke. Every subdivision adds a new point at the exact middle point of an edge.

The function is intended to be used in the interpolation operators to give better results when interpolating between different sized strokes.

Reviewed By: antoniov

Differential Revision: https://developer.blender.org/D9835
2020-12-12 16:49:38 +01:00
Julian Eisel
0c1d476923 UI: Allow UI to pass focused data-block to operators via context
This is similar to c4a2067130130d, but applies to the general UI and is only
about single data-blocks. Here there was a similar problem: How can buttons
pass the data they represent to operators? We currently resort to ugly ad-hoc
solutions like `UI_context_active_but_get_tab_ID()`. So the operator would need
to know that it is executed on a tab button that represents a data-block.

A single button can now hand operators a data-block to operate on. The operator
can request it via the "id" context member (`CTX_data_pointer_get_type(C, "id",
&RNA_ID)` in C, `bpy.context.id` in .py).
In this commit, it is already set in the following places:
* Generic RNA button code sets it to the pointed to data-block, if the button
  represents a data-block RNA pointer property. (I.e for general data-block
  search buttons.)
* Data-block selectors (`templateID`) set it to the currently active data-block.
* The material slot UI-List sets it for each slot to the material it represents.
The button context menu code is modified so its operators use the context set
for the layout of its parent button (i.e. `layout.context_pointer_set()`).

No user visible changes. This new design isn't actually used yet. It will be
soon for asset operators.

Reviewed as part of https://developer.blender.org/D9717.
Reviewed by: Brecht Van Lommel
2020-12-11 23:08:29 +01:00