The operator was working in sculpt mode but not object mode. Avoid the
"transverts" abstraction for this since we already have the necessary
positions array and selection readily accessible.
Caused by 9c2e768f5b
Since above commit, drawing of the normal is not done in
`ED_view3d_cursor_snap_draw_util` anymore [that function checked the
existence of a valid target location], now add the check back.
Pull Request: https://projects.blender.org/blender/blender/pulls/116292
When the lookdev balls where initially added we didn't had the
experience community compared to now and reused a value we
used for our default materials.
Nowadays we have actually industry experts asking to use a mid grey
albedo of 18% as that is widely used in the vfx studios. This PR
changes the default diffuse HDRI sphere to be 50% grey.
For references see:
- https://en.wikipedia.org/wiki/Middle_gray
Pull Request: https://projects.blender.org/blender/blender/pulls/116175
This adds a new `Bake` node which allows saving and loading intermediate geometries.
Typical use cases we want address with this currently are:
* Bake some data for use with a render engine.
* Bake parts of the node tree explicitly for better performance.
For now, the format that is written to disk is not considered to be an import/export format.
It's not guaranteed that data written with one Blender version can be read by another
Blender version. For that it's better to use proper interchange formats. Better support for
those will be added eventually as well. We also plan an `Import Bake` node that allows
reading the blender-specific baked data independent of the Bake node and at different frames.
The baking works very similar to the baking in the simulation zone (UI and implementation
wise). Major differences are:
* The Bake node has a `Bake Still` and `Bake Animation` mode.
* The Bake node doesn't do automatic caching.
Implementation details:
* Refactored how we create the Python operators for moving socket items so that it also
makes sense for non-zones.
* The `ModifierCache` stores an independent map of `SimulationNodeCache` and
`BakeNodeCache`, but both share a common data structure for the actually baked data.
* For baking, the `Bake` node is added as a side-effect-node in the modifier. This will make
sure that the node is baked even if it's currently not connected to the output.
* Had to add a new `DEG_id_tag_update_for_side_effect_request` function that is used
during baking. It's necessary because I want to evaluate the object again even though none
of its inputs changed. The reevaluation is necessary to create the baked data. Using
`DEG_id_tag_update` technically works as well, but has the problem that it also uses the
`DEG_UPDATE_SOURCE_USER_EDIT` flag which (rightly) invalidates simulation caches
which shouldn't happen here.
* Slightly refactored the timeline drawing so that it can also show the baked ranges of
Bake nodes. It does not show anything for baked nodes with a in Still mode though.
* The bake operator is refactored to bake a list of `NodeBakeRequest` which makes the
code easier to follow compared to the previous nested
`ObjectBakeData > ModifierBakeData > NodeBakeData` data structure.
* The bake operators are disabled when the .blend file is not yet saved. This is technically
only necessary when the bake path depends on the .blend file path but seems ok to force
the user anyway (otherwise the bake path may be lost as well if it's set explicitly).
* The same operators are used to bake and delete single bakes in `Bake` nodes and
`Simulation Zones`. On top of that, there are separate operators of baking and deleting all
simulation bakes (those ignore bake nodes).
* The `Bake` node remembers which inputs have been fields and thus may be baked as attributes.
For that it uses an `Is Attribute` flag on the socket item. This is needed because the baked data
may still contain attribute data, even if the inputs to the bake node are disconnected.
* Similar to simulation zones, the behavior of `Bake` nodes is passed into the geometry nodes
evaluation from the outside (from the modifier only currently). This is done by providing the
new `GeoNodesBakeParams` in `GeoNodesCallData` when executing geometry nodes.
Next Steps (mostly because they also involve simulations):
* Visualize nodes that have not been evaluated in the last evaluation.
* Fix issue with seemingly loosing baked data after undo.
* Improve error handling when baked data is not found.
* Show bake node in link drag search.
* Higher level tools for managing bakes.
Pull Request: https://projects.blender.org/blender/blender/pulls/115466
When aborting, the Global shared pointer for memory usage tracking
would be freed before Blender's temporary directory was purged.
Removing the temporary directory would then use MEM_* functions which
accessed the freed memory usage class.
Resolve by using malloc/free for the internal recursive_operation(..)
utility function.
Remove strip_last_slash utility function as it's a specific operation
which can be written in 2 lines & was only used once after this change.
Split the code, use preconditions, use rather plain language for
function names and add comments where it is not totally obvious, what
the code is supposed to do.
This refactors `SocketValueVariant` with the following goals in mind:
* Support type erasure so that not all users of `SocketValueVariant` have
to know about all the types sockets can have.
* Move towards supporting "rainbow sockets" which are sockets whoose
type is only known at run-time.
* Reduce complexity when dealing with socket values in general. Previously,
one had to use `SocketValueVariantCPPType` a lot to manage uninitialized
memory. This is better abstracted away now.
One related change that I had to do that I didn't see coming at first was that
I had to refactor `set_default_remaining_outputs` because now the default value
of a `SocketValueVariant` would not contain any value. Previously, it was
initialized the zero-value of the template parameter. Similarly, I had to change
how implicit conversions are created, because comparing the `CPPType` of linked
sockets was not enough anymore to determine if a conversion is necessary.
We could potentially use `SocketValueVariant` for the remaining socket types in the
future as well. Not entirely sure if that helps yet. `SocketValueVariant` can easily be
adapted to make that work though. That would also justify the name
"SocketValueVariant" better.
Pull Request: https://projects.blender.org/blender/blender/pulls/116231
Add a utility to set attribute values to their default, use it in a few
places that have already done this samething. Also:
- Don't create resolution or cyclic attributes unnecessarily
- Use API function to set new curve's type
- Always create the new selection on the curve domain
- Remove selection before resize to avoid unnecessary work
Before #108014, toggling "Auto Smooth" was an easy way to disable
evaluation of custom normals and face corner normals for faster
viewport playback performance. Now that corner normals are calculated
automatically as necessary, it's helpful to still have a way to disable
expensive normal computation for faster playback.
This commit adds a "Normals" scene simplify setting. To avoid a bunch
of complexity, it just influences which normals are requested from the
object by viewport rendering. In my tests, skipping calculating at
least doubled viewport FPS in a few test files with a large mesh with
custom normals. This works well because normals are cached and lazily
calculated.
Pull Request: https://projects.blender.org/blender/blender/pulls/113975
USD: optionally author subdivision schema on export
This PR adds support for exporting USD assets which have the subdivision
schema applied. Current behavior prior to this PR is that the effects of
Subdivision Surface modifiers are always applied to their mesh prior to
export, such that it is not possible to recover the original base mesh.
In this PR we provide three options for the subdiv schema type:
Ignore - Export base mesh without subdivision with USD Scheme = None
Tessellate - Export subdivided mesh with USD Scheme = None
Best Match (default) - Export base mesh with USD Scheme = Catmull-Clark
"Best Match" here means that Blender will set a subdiv scheme type in
the exported USD asset when it is possible to closely match the
subdivision surface type that was authored in Blender. At this time
Blender provides two subdivision types: Catmull-Clark and Simple.
Because Simple does not have a corresponding subdivision type in USD, we
do not attempt to convert or represent it, and instead the Simple subdiv
modifier will be evaluated and applied to the mesh during export.
Whenever a Catmull-Clark Subdivision Surface modifier is applied to an
object, and is the last modifier in the stack, it is possible to set the
subdiv scheme to Catmull-Clark for the respective prim in the exported
USD file.
Authored by Apple: Matt McLin
Co-authored-by: Matt McLin <mmclin@apple.com>
Co-authored-by: Brecht Van Lommel <brecht@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/113267
The main problem is, that retiming key frame index is defined in strip
content space (0 <> seq->len -1), but API functions must rescale this
index by applying `SEQ_time_media_playback_rate_factor_get()` and return
value in timeline space.
This wasn't done properly, in many places, some had challenges:
- `SEQ_retiming_key_timeline_frame_get()` returned floats, but UI
expects integers. Otherwise keys may be drawn inbetween frames.
- Function `right_fake_key_frame_get()` must return exact frame of
keys, otherwise lookup by frame would fail. But `retime_key_draw()`
can not compensate position of last fake key, so this has to be done
in `fake_keys_draw()` and `try_to_realize_virtual_key()`.
- For transformation to work as expected, double precision value has
to be used for frame index.
- For UI either API would had to be extended to provide helper functions
to deal with FPS mismatch, or it needs to know the FPS difference.
I have opted to put `SEQ_time_media_playback_rate_factor_get()` in
"public" headers. Neither solution is great.
No functional changes.
Extracting the section inside the `LISTBASE_FOREACH`
that inserts keyframes based on a `KS_Path`.
This moves variables closer to where they are used and
will allow to simplify the code later.
This also improves variable names by spelling out
the words instead of using abbreviations.
e.g. `ks` -> `keying_set`
Pull Request: https://projects.blender.org/blender/blender/pulls/116224
Whenever movie frame encoding needs to be in non-RGBA format (pretty much
always, e.g. H.264 uses YUV etc.), the ffmpeg code has been using
sws_scale() since 2007. But that one is completely single threaded.
It can be multi-threaded by passing "threads" option to SwsContext
(in a cumbersome way), combined with sws_scale_frame API. Which however
requires frame data buffers to be allocated via AVBuffer machinery.
Rendering a 300-frame part of Sprite Fright Edit (target H.264 Medium):
- Windows Ryzen 5950X: 16.1 -> 12.0 seconds (generate_video_frame part
4.7 -> 0.7 sec).
- Mac M1 Max: 13.1 -> 12.5 sec. Speedup is smaller, but comparatively,
entirely other part of movie rendering (audio resampling inside audaspace)
is way more expensive compared to the windows machine.
The asserts added in b840ba1f59 revealed the bug, which was passing the
wrong Scene pointer to `BKE_view_layer_synced_ensure` in affected code.
Issue likely introduced in 68589a31eb, was probably never actually a
crash-case because the viewlayer would always be in sync already when
this was called from the Outliner (besides perhaps some extremely rare
edge cases).
To be backported to potential bugfix release of 4.0 together with
b840ba1f59 commit.
Add support for enum values in ID properties.
This is needed for the "Menu Switch" node implementation (#113445) which
relies on ID properties for the top-level modifier UI.
Enums items can optionally be added to the UI data of integer
properties. Each property stores a full set of the enum items to keep
things simple.
Enum items can be added to properties using the `id_properties_ui`
function in the python API. A detailed example can be found in the
`bl_pyapi_idprop.py` test.
There is currently no support yet for editing enum items through the UI.
This is because the "Edit Property" feature is implemented entirely
through a single operator (`WM_OT_properties_edit`) and its properties.
Buttons to add/remove/move items would be operators changing another
operator's properties. A refactor of the custom properties UI is likely
required to make this work.
Pull Request: https://projects.blender.org/blender/blender/pulls/114362
