EEVEE-next has removed the MA_BM_CLIP / alpha_threshold material
properties in favor of using nodes for equivalent functionality. This
changes USD to build and traverse node graphs during import and export
accordingly. Indirectly this allows Cycles to correctly render such
materials now too.
A complicating factor is that the UsdPreviewSurface defines its opacity
threshold using greater-than-equals[1], which Blender does not support
(and for which was technically already incorrect as EEVEE-legacy only
used greater-than for its shaders). Due to this we actually need to use
2 nodes: A less-than, followed by a one-minus invert, to arrive at the
proper value. We'll translate UsdPreviewSurface to this form on Import.
For Export we will look for either this 2-node pattern or a Round
node plugged into Alpha. Looking for Round is a result of the glTF
documentation which recommended the use of this node for thresholds of
0.5[2]. It's a tiny addition that seems reasonable to accommodate.
[1] https://openusd.org/release/spec_usdpreviewsurface.html (search for "opacityThreshold")
[2] https://docs.blender.org/manual/en/4.2/addons/import_export/scene_gltf2.html#alpha-modes
See PR for example images
Pull Request: https://projects.blender.org/blender/blender/pulls/122025
Add support for reading and writing custom `Curves` attributes.
This allows us to roundtrip Blender's Hair grooms containing UVs and
other attribute data. Note that animated attribute values are not
supported with this change.
This will also address #120042
Pull Request: https://projects.blender.org/blender/blender/pulls/121928
This patch explicitly sets the compositing device in the compositor test
scripts. This is done to make the tests more robust, since a developer
might accordantly save a file with a different device.
Effectively, make GPU compositor available without need to enable
an experimental feature set.
The compositor device is now exposed in the Performance panel of
Render Buttons. It is also still available in the compositor's
N-panel, together with some other options which are more about how
editing works, and not exactly related to render performance.
Pull Request: https://projects.blender.org/blender/blender/pulls/121398
The new/experimental, layered `Animation` data-block is merged with the
existing `bAction` data-block.
The `Animation` data-block is considerably newer than `bAction`, so the
supporting code that was written for it is also more modern. When moving
that code into `bAction`, I chose to keep the modernity where possible,
and thus some of the old code has been updated as well. Things like
preferring references over pointers.
The `Animation` data-block is now gone from DNA, the main database, etc.
As this was still an experimental feature, there is no versioning code
to convert any of that to Actions.
The DNA struct `bAction` now has a C++ wrapper `animrig::Action`, that
can be obtained via `some_action->wrap()`.
`animrig::Action` has functions `is_empty()`, `is_action_legacy()`, and
`is_action_layered()`. They **all** return `true` when the Action is
empty, as in that case none of the data that makes an action either
'legacy' or 'layered' is there.
The 'animation filtering' code (for showing things in the dope sheet,
graph editor, etc) that I wrote for `Animation` is intentionally kept
around. These types now target 'layered actions' and the
already-existing ones 'legacy actions'. A future PR may merge these two
together, but given how much work it was to add something new there, I'd
rather wait until the dust has settled on this commit.
There are plenty of variables (and some comments) named `anim` or
`animation` that now are of type `animrig::Action`. I haven't renamed
them all, to keep the noise level low in this commit (it's already big
enough). This can be done in a followup, non-functional PR.
Related task: #121355
Pull Request: https://projects.blender.org/blender/blender/pulls/121357
This adds a light parameter to avoid near camera pixels
allocating too much shadow resolution.
This is more intuitive than the scale shadow setting and
allows reducing the precision without changing the look
of distant shadows.
For sun lights, the property sets the minimum pixel
size the shadow can contains. This allows to
remove a lot tilemap close up.
For local lights, there is another additional property
to set the maximum resolution in shadow space (like
EEVEE-Legacy) instead of in world space (like sun
lights). This allows making older files lighter and
allow a more conservative approach to resolution.
This add versionning code to handle EEVEE-Legacy files
that had fixed resolution per light type.
The resolution setting is always in world space distance
as the maximum shadow resolution distribution might change
in the future or be dependent on other parameters
(like beam angle). This ensure that there is no
dependency on these parameters, but make the
setting use very small units. But this is more of
a UI problem.
Pull Request: https://projects.blender.org/blender/blender/pulls/121701
This allows to expose these settings in the Performance panel in the
render buttons. Also moves compositor-specific options away from the
generic node tree structure.
For the backwards-compatibility the options are still present in the
DNA for the bNodeTree. This is to minimize the impact on the Studio
which has used the GPU compositor for a while now. They can be
removed in a future release.
There is no functional changes expected.
Pull Request: https://projects.blender.org/blender/blender/pulls/121583
These are really basic testing as well, merely linking or appending the
first collection or object in all processed blendfiles. But it should
help catching 'rare' issues in linking/appending from older blendfiles.
The `io_blendfile_versioning` test is currently one of the slowest
(excluding Cycles ones) in debug builds, it can easily take several
minutes to complete.
This commit split it into several instances, each processing a subset of
all the blendfiles.
This gives a strong speed-up when only running that specific test.
As expected, speedup is neglectable when running the whole test suite
though.
| instances | debug | release | debug all* | release all |
| --------- | ------ | ------- | ---------- | ----------- |
| 1 | 190.95 | 19.39 | 439.54 | 63.51 |
| 4 | 61.80 | 6.81 | N/A | N/A |
| 8 | 38.33 | 5.14 | 435.00 | 58.93 |
| 16 | 33.97 | 4.16 | N/A | N/A |
| 32 | 46.54 | 5.14 | N/A | N/A |
Times are in seconds.
`instances` are the number of tests generated (1 is same as before this
commit).
The first two columns are timings for running the versioning test only,
the last two are timings for the full test suite (excluding Cycles tests
in the debug build case).
This updates OIDN to 2.3.0-beta. The final version is planned to be
released in time for Blender 4.2 Beta. The most relevant changes:
1. Much higher quality when denoising with accurate prefiltering in *high*
quality mode, but at the cost of lower performance (use *balanced*
quality mode to revert to previous *high* quality mode)
2. Added new *fast* quality mode for 1.5-2x higher performance viewport
denoising
3. Lazy device module loading to avoid potential stability issues caused by
drivers of unused devices
4. Release CUDA primary context as soon as the OIDN device gets destroyed
to prevent potential memory leaks
To enable 2 and 3, code changes are needed in Blender, to be committed
separately.
Ref #118455
Pull Request: https://projects.blender.org/blender/blender/pulls/121359
Adds a test to validate the import of Mesh attributes for USD.
It reuses the recently added export attribute test file to generate the
USD file to load.
The test validates the current behavior in `main`. Missing data and bugs
are noted in comments and can be addressed afterwards.
Pull Request: https://projects.blender.org/blender/blender/pulls/121327
Implement the design discussed in #120384.
This adds two parameters. One for changing the approximation
method, and another to use the thickness from shadow map.
We pack the former in the gbuffer by dividing the 16bits
used for thickness by two and use one bit to store the
method.
The thickness from shadow map is now decoupled from the
light evaluation shader. This makes it more performant and
compatible with ray-tracing. This commit also uses the
same biases as shadow mapping to avoid aliasing artifacts
(fix#119339).
This refactors the light evaluation quite a bit to
remove unused bits bits and make the whole transmission
light evaluation without too much complexity.
Pull Request: https://projects.blender.org/blender/blender/pulls/121171
Add an RNA enum property `AnimData.animation_binding` that lists all the
bindings available in `AnimData.animation`.
The list of bindings is filtered to only contain the bindings suitable
for the animated ID. This prevents assigning a 'camera' binding to a
mesh.
Un-assigning is done via an operator, represented as an 'X' button in
the interface.
The enum property contains up to two special items:
- "New" to create a new binding for the ID.
- "(none/legacy)" to indicate that this ID doesn't have a binding
assigned. This one is conditional, and only appears when it is
necessary.
These two special items are experimental, and mostly exist because we're
still evaluating things and building a better UI. It is intended that
the binding selector will become as close to the ID selector as
possible.
-----------
Note that this PR also contains #121268 as it builds up from that one, and I didn't want to wait with testing on the buildbot until that one lands.
The new Baklava panel:
Pull Request: https://projects.blender.org/blender/blender/pulls/121269
Refuse to set the RNA property `AnimData.animation_binding_handle` when
`AnimData.animation` is nil.
When in a hypothetical future `AnimData.animation` would be set, the
binding handle would be ignored anyway, as it's only meaningful within
the context of a known animation. Refusing to set the binding handle in
cases where it is known to be meaningless may help to find bugs in
Python scripts.
Pull Request: https://projects.blender.org/blender/blender/pulls/121268
Add an optional keyword argument `keytype` to the
`rna_struct.keyframe_insert()` function.
This makes it possible to set the new key's type. The code for this was
almost all in place, the only thing that was missing was the RNA
wrapper, which is what this commit adds.
Example: `bpy.context.object.keyframe_insert("location",
keytype='JITTER')`
There is no backward compatibility issue here, because the argument is
optional and defaults to the previously hardcoded value of `KEYFRAME`.
Pull Request: https://projects.blender.org/blender/blender/pulls/120578
Expand the `AnimData` struct with an `Animation *` + an
`binding_stable_index` field, and properly handle those relations.
This also adds functionality for actually pointing animated IDs to
`Animation` data-blocks, and automatically hooking up the relevant
`Binding`.
The Depsgraph code is extended to take these new relations into account,
but doesn't trigger any animation evaluation yet.
For more info, see #113594.
Pull Request: https://projects.blender.org/blender/blender/pulls/118677
Add code (including RNA wrappers) for:
- Creating, removing, and accessing `Animation` data-blocks.
- Creating and removing layers, strips, and bindings on those `Animation`
data-blocks.
- Accessing those via RNA.
Note that this does not include assignment to any animated data-block,
so it is of limited practical use.
For more info, see #113594.
Pull Request: https://projects.blender.org/blender/blender/pulls/118677
The curve variations were used during development of the GeometrySet
changes.
The lights and point instancer coverage would have helped uncover bugs
earlier. Bugs that eventually had to be fixed in 4.1. Better late than
never.
The one downside is that the light tests is actually a round-trip test,
which is normally fine to do, except it technically does an export
during the import test.
Pull Request: https://projects.blender.org/blender/blender/pulls/119858
Often when the reference linked data is significantly modified, a lot of
'ghost' linked data remain referenced by liboverrides, even after
resync. This is due to the fact that missing data is ignored (skipped)
during resync process, to avoid potential destruction of data in case
the linked data is actually missing.
However, after all resync has been done, we can consider that missing
linked references and their liboverrides can be safely deleted, if the
later are not user-edited or hierarchy roots.
Nested panels are not supported currently, and this parameter serves no
actual purposes. Only the root panel supports adding child panels and it
is not user-accessible (adding the root panel is done using a nullptr
for the parent).
Pull Request: https://projects.blender.org/blender/blender/pulls/118792
This change makes it so build system and update utilities for Blender builds
are using pre-compiled libraries and other resources attached as Git modules
instead of using checkout of SVN repositories in the parent folder.
The directory layout:
```
* release/datafiles/
* assets/ -> blender-assets.git
* publish/
* ...
* README.txt
* lib/
* darwin_x64/ -> lib-darwin_x64.git
* darwin_arm64/ -> lib-darwin_arm64.git
* linux_x64/ -> lib-linux_x64.git
* windows_x64/ -> lib-windows_x64.git
* tests/
* data/ -> blender-test-data.git
```
The changes about configuring the actual Git sub-modules are not included
into this patch, as those require repository to actually exist before it
can be used.
The assets submodule is enabled by default, and the rest of them are
disabled. This means that if someone runs `git submodule update --init`
they will not get heavy libraries. The platform-specific and tests
related submodules are enabled when using `make update` or `make test`.
All the submodules are tracked: this means that when new commits are
done to the submodule, the blender.git repository is to be updated to
point them to the new hash. This causes some extra manual work, but it
allows to more easily update Blender and its dependencies to known good
state when performing operations like bisect.
Ref #108978
Pull Request: https://projects.blender.org/blender/blender/pulls/117946
