Rename "Animation data-block" to "Action" or "Layered Action", where
appropriate. Some uses of the term actually refer to the `AnimData`
struct, in which case they were left as-is.
No real functional changes, just changing some messages & descriptions.
Pull Request: https://projects.blender.org/blender/blender/pulls/124170
Rename 'Binding' to 'Slot'. The old term was causing all kind of
confusion, and 'slot' was considered to be a better term for the
intended functionality.
This commit breaks existing blend files that were using the new layered
Action for their animation. The animation data will be lost due to the
rename, as there is no versioning code or DNA renaming logic. At this
time the new system is still marked as experimental, so shouldn't be
used for anything serious anyway.
Pull Request: https://projects.blender.org/blender/blender/pulls/124170
Old python STL exporter, as well as other exporters like OBJ,
reverse the face order when object being exported has odd number
of negative scales in the matrix. The C++ STL exporter was lacking
that, resulting in the exported object looking "inside out".
The extra branch inside triangle export inner loop has no measurable
performance impact, probably because it is entirely predictable.
Pull Request: https://projects.blender.org/blender/blender/pulls/124219
The issue is caused by an external dependency to
/opt/homebrew/opt/libb2/lib/libb2.1.dylib
This change adds a test to catch the same issue in the future,
and moves the arm64 libraries to a newer hash with fixed Python.
Pull Request: https://projects.blender.org/blender/blender/pulls/124096
Previously add-ons were sorted by category & name, remove the category
only sorting by name since the category is no longer displayed and
isn't part of extension meta-data. Now the add-ons are sorted by name
(case insensitive).
Details:
- Store add-ons modules sorted to avoid having to sort on every redraw.
- addon_utils.modules() now returns an iterator.
As an initial step to creating automated regression tests for sculpt brushes,
make our existing performance test script into an automated performance
test. The test uses the brush active in each file and runs the brush stroke
operator on a large generated grid. The time is just for the brush evaluation,
it doesn't include building the PBVH, drawing, etc.
I'm not sure about the consequences of conditionally disabling
`view3d_operator_needs_opengl`, but it was needed to make the test
work in background mode.
Pull Request: https://projects.blender.org/blender/blender/pulls/123148
The original paper only considers the minimal distance of the cluster to
the ray, not the interval length, resulting in low weight for distant
lights that have large influence over a long distance.
This commit modifies the measure by considering `theta_b - theta_a` for
local lights and the ray length `t` for distant lights.
Pull Request: https://projects.blender.org/blender/blender/pulls/123537
Add an export test to cover some simple animation scenarios that would
have protected against recent bugs:
- A simple object animation (would have prevented `122625`)
- An armature animation (would have prevented `724a674baed`)
- A shape key animation (would have indirectly found `6c5ce883e73`)
Pull Request: https://projects.blender.org/blender/blender/pulls/123458
Currently the mesh boolean code is producing a different index order on the latest
version of XCode on macOS. This is proving very difficult to investigate, and it's
preventing developers from spending time on more important things.
As a compromise for now, allow configuring certain geometry nodes tests to make
meshes with a different index order still pass the test. This can be done by adding
a boolean custom property with the name `allow_index_change` to the test object
and setting it to "True". Allow the index change on different platforms is unfortunate,
spending time on working on a replacement exact boolean algorithm is a more
valuable use of time currently.
After this commit lands, someone who can reproduce the failing test on their
computer should update tests to include that custom property as necessary.
Pull Request: https://projects.blender.org/blender/blender/pulls/123204
Allow assigning integer values beyond int32 range to float/double
IDProperties. Extract the py object value into a temporary int64 value
in these cases.
All IDProperties generated as part of 'storage backend' for dynamic RNA
properties are now statically typed.
Also adds some basic unittests for the new statically typed IDProperty
system, based on py-defined RNA data.
Ref. #122743.
Just for the `pyrna_struct_keyframe_insert()` function, reduce the
reporting level of keyframe insertion failures from `RPT_ERROR` to
`RPT_WARNING`. This prevents the conversion of these reports to a Python
exception.
`CombinedKeyingResult::generate_reports()` now accepts an option
argument `report_level`, so that the caller is in control over the type
of reports it generates.
Previously only errors were converted to exceptions; warnings were
implicitly cleared and never displayed. To avoid these 'keyframe
insertion failure' reports from becoming invisible, the
`pyrna_struct_keyframe_insert()` function now sends any warnings to
stdout (unless there were errors, in which case the old
error-to-exception behaviour is still there).
Pull Request: https://projects.blender.org/blender/blender/pulls/122827
Add (partially disabled) systematic tests that for all IDProp types, the
returned value from direct idprop subscription and RNA-based
`path_resolve` return the same data.
NOTE: This does not work currently for 'composite' types (`IDP_ARRAY` and
`IDP_GROUP`).
The add-on load test could fail depending on add-ons in user extension
repositories.
Remove all repositories before running the tests.
Also minor naming & comment edits.
This change adds the ability to export MaterialX networks into the resulting
USD layer.
Details:
A new export option has been added to the USD export to enable MaterialX
export. It is off by default currently due to reasons in the caveats
section.
When enabled, it exports the MaterialX shading network alongside the
UsdPreviewSurface network, on the same USD Material. This allows the same
material to be used by renderers that don't support MaterialX, using the
USDPreviewSurface as a fallback. This is similar to setups in other DCC
packages, and matches the format we've used in our Reality Composer Pro
asset library.
It uses the existing MaterialX framework used to generate MaterialX
documents for rendering, to act as the basis for the USD graph. In this
process it also re-uses the existing texture export code as well if provided
and necessary.
Once the MaterialX document is created, use usdMtlx to generate a USD
shading network. Unfortunately, usdMtlx generates a graph that is unlike
what other DCCs that support MaterialX-embedded-in-USD generates. It
generates several extra prim hierarchies, and externalizes all shader
inputs, making them difficult to edit in other MaterialX graph editors.
To workaround this, generate the MaterialX shading network onto a
temporary stage, where we then run various pre-processing steps to prevent
prim collisions and to reflow the paths once they're converted.
The PrimSpecs are then copied over to their new path. The resulting prim
hierarchy matches what many artists we've worked with prefer to work with.
Caveats:
The Export MaterialX check is off by default. When using the Principled
BSDF, the resulting graph is very usable. However, when using some of the
other BSDFs, the shading networks generated by the existing MaterialX
framework in Blender generate some shading graphs that are difficult for
usdview and other DCC's to understand. The graph is still correct, but
because we're trying to prioritize compatibility, the default is off.
In future PRs we can aim to make the graphs for those other BSDFs play
better with other DCCs.
Other Implementation Details:
As part of this commit we've also done the following:
* Place some of the materialx graphs inside a passthrough nodegraph to
avoid node conflicts.
* Better handle some shader output types , and better handle some
conflict cases.
* Moved the ExportTextureFunction to materials.h due to some difficult
to resolve header ordering issues. This has no effect on any runtime code.
* There is a test for the MaterialX export that does some basic checking to
make sure we get an export out the other end that matches our expectations
Authored by Apple: Dhruv Govil
This PR is based on an earlier implementation by Brecht van Lommel , as well
as Brian Savery and his teams' work at AMD to implement the general
MaterialX framework within Blender.
Pull Request: https://projects.blender.org/blender/blender/pulls/122575
This patch implements blue-noise dithered sampling as described by Nathan Vegdahl (https://psychopath.io/post/2022_07_24_owen_scrambling_based_dithered_blue_noise_sampling), which in turn is based on "Screen-Space Blue-Noise Diffusion of Monte Carlo Sampling Error via Hierarchical Ordering of Pixels"(https://repository.kaust.edu.sa/items/1269ae24-2596-400b-a839-e54486033a93).
The basic idea is simple: Instead of generating independent sequences for each pixel by scrambling them, we use a single sequence for the entire image, with each pixel getting one chunk of the samples. The ordering across pixels is determined by hierarchical scrambling of the pixel's position along a space-filling curve, which ends up being pretty much the same operation as already used for the underlying sequence.
This results in a more high-frequency noise distribution, which appears smoother despite not being less noisy overall.
The main limitation at the moment is that the improvement is only clear if the full sample amount is used per pixel, so interactive preview rendering and adaptive sampling will not receive the benefit. One exception to this is that when using the new "Automatic" setting, the first sample in interactive rendering will also be blue-noise-distributed.
The sampling mode option is now exposed in the UI, with the three options being Blue Noise (the new mode), Classic (the previous Tabulated Sobol method) and the new default, Automatic (blue noise, with the additional property of ensuring the first sample is also blue-noise-distributed in interactive rendering). When debug mode is enabled, additional options appear, such as Sobol-Burley.
Note that the scrambling distance option is not compatible with the blue-noise pattern.
Pull Request: https://projects.blender.org/blender/blender/pulls/118479
The Glare node shifts the color of the highlights when the threshold is
high. That's because the thresholding algorithm simply subtracts the
threshold from the RGB data, which is not expected to retain the same hue
of the color.
To fix this, we do the thresholding only on the luminance of the color
in HSV color space. This eliminates the color shifting and also helps to
smooth the edges of the highlights.
This is a breaking change, but it is more of a fix rather than a change
of behavior.
Pull Request: https://projects.blender.org/blender/blender/pulls/122570
Split `bpy.types.LightProbe` into specialized subclasses.
- Rename all grid_* to remove the prefix in the RNA and limit access to
volume probe.
- Parallax and other sphere probe only properties should be limited to
sphere probe.
- `visibility` properties are deprecated (to be removed in a future
Blender version)
Ref #113976
Pull Request: https://projects.blender.org/blender/blender/pulls/122353
This handles the transition to EEVEE-Next (now EEVEE).
This removes some things that make no sense to keep
even for compatibility.
- Scene.eevee.light_cache_data
- Scene Light cache operators
- Scene Light cache RNA properties
The remaining legacy properties will be removed later
on to avoid python API breakage.
We keep the identifier of EEVEE-Next as `BLENDER_EEVEE_NEXT`
to avoid addons being incorrectly silently made compatible
with the EEVEE-Next where the Python API is different.
This renaming should be done in 5.0 release.
Thank you EEVEE-Legacy, you served us well.
Pull Request: https://projects.blender.org/blender/blender/pulls/122433
