Recalc selection count at the end of the circle selection.
This was removed from circle selection as it became a performance
bottleneck, helas some operators rely on it.
These kinds of depsgraph evaluations should not be marked as low priority as
this could negatively affect playback performance. Low priority should mainly
be used for background tasks.
Isolate frame writing task so that multithreaded image operations don't cause
the thread to start writing another frame. If that happens we may reach the
MAX_SCHEDULED_FRAMES limit, and cause the render thread and writing threads to
deadlock waiting for each other.
Additionally, don't set task priority to low because this may cause the task
scheduler to be slow in scheduling the write and color management tasks.
Overwriting UV map or vertex color data in Geometry nodes will move the
layers to another CustomData channel, and as such, will make attribute
lookup fail from the UVMap and Vertex Color nodes in EEVEE as the
CustomDataType will also be modified (i.e. no longer `CD_MTFACE` or
`CD_MCOL`).
As discussed in T93179, the solution is to use `CD_PROP_AUTO_FROM_NAME`
so that the render engine is able to find the attributes. This also makes
EEVEE emulate Cycles behaviour in this regard. `attr_load_uv` and
`attr_load_color` are also removed in favor of the generic attribute
API in the various GLSL shaders.
Although `CD_PROP_AUTO_FROM_NAME` is now used even for UV maps, the
active UV map is still used in case the attribute name is empty, to
preserve the old behavior.
Differential Revision: https://developer.blender.org/D13730
The crash is caused as the data for the UV editor is requested before
the data for the mesh as a separate draw update. Since building the UV
stretch angle buffer requires the position buffer, the latter is not
created yet in this case.
To fix this, create a local position buffer from the subdivision data. An
alternate fix was considered to remove the dependency on the position
buffer by interpolating on the GPU the coarse stretch angle buffer but
this did work. Maybe this will be revisited.
- Fix T97793: when a UV coordinate after vt is missing, use zero. While
at it, also use zeroes for positions & normals, since "maximum
possible float" is very likely to cause issues in imported meshes.
- Fix T97795: use 1.0 default if -bm value is missing, instead of zero.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14826
Fix several correctness issues where the new OBJ/MTL importer was not
producing the same results as the old one, mostly because the code for
some reason had slightly different logic. Fixes T97757:
- When .obj file tries to use a material that does not exist, the code
was continuing to use the previous material, instead of creating new
default one, as the previous importer did.
- Previous importer was always searching/parsing "foo.mtl" for a
"foo.obj" file, even if the file itself does not contain
"mtllib foo.mtl" statement. One file from T97757 repros happens to
depend on that, so resurrect that behavior.
- When IOR (Ni) or Alpha (d) are not specified in .mtl file, do not
wrongly set -1 values to the blender material.
- When base (Kd) or emissive (Ke) colors are not specified in the .mtl
file, do not set them on the blender material.
- Roughness and metallic values used by viewport shading were not set
onto blender material.
- The logic for when metallic was set to zero was incorrect; it should
be set to zero when "not using reflection", not when "mtl file does
not contain metallic".
- Do not produce a warning when illum value is not spelled out in .mtl
file, treat as default (1).
- Parse illum as a float just like python importer does, as to not
reintroduce part of T60135.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14822
Regression from rB1a7757b0bc69/rBa0acb9bd0cc0. Special handling
(averaging) of weights on merged center vertices also requires to be
'reversed' when new correct merge order is used, compared to previous
behavior.
Run autopep8 as well as clang-format when calling "make format",
the PATHS argument is passed to both utilities which will only operate
on files they support.
For example: `make format PATHS=release/scripts` formats Python scripts,
`make format PATHS=source/blender/blenlib` would format C/C++.
If users really want they can format C/C++ & Python files at the same
time since both formatting utilities filter on file extension.
`make format PATHS="release/scripts/startup/nodeitems_builtins.py source/creator/creator.c"`
A LIBDIR variable has been added to the GNUmakefile to simplify
references to this directory which can be one of 3 possible values.
Reviewed By: sybren, brecht
Ref D14789
Regression caused by [0] that caused the error message to be
created based on a normalized exception (which hid line numbers).
PyC_ExceptionBuffer{_Simple} & BPy_errors_to_report
no longer clears the exception.
This could have been resolved by changing python_script_error_jump
however that would involve changes to reference counting that are more
risky (noted in code-comment).
[0]: 2d2baeaf04
Leak was caused because output image buffer was initialized twice. Once
in speed effect strip and then by cross effect strip used for
interpolation feature.
This was reported explicitly for originally being in face selectmode,
but could also crash when in vertex selectmode (when doing multiple
cuts).
The reason here is that `MESH_OT_loopcut` switches to edge select mode
(needed for `TRANSFORM_OT_edge_slide`, done in `ringsel_finish`), but was
only doing this on the active object's editmesh, all other participating
meshes would keep their selectmode which would now be out of sync with
both the active object's editmesh and scene settings for these.
This causes problems later in 'Select Linked'. Here, a mixture of
objects are used. First the viewcontext is set up with the active
object, then all participating objects are iterated (changing the
viewcontext to another object), then `unified_findnearest` would use that
changed viewcontext which would now contain the last object iterated. To
repeat: this could now have a different selectmode than the active
object which is later **again** used to get the nearest `BMElem` from in
`EDBM_elem_from_selectmode`. So in the failing case, we could get an
edge (but no face because of edge selectmode) from `unified_findnearest`,
`EDBM_elem_from_selectmode` would return NULL though (edge provided, but
in face selectmode), leading to the crash.
To solve this I assume it is best to change selectmode on all
participating meshes in multi-object editmode loopcut if necessary so
these are always in sync for following operations.
Alternatively, `Select Linked` (and probably lots more operators) would
have to be tweaked to pay closer attention which object is really used
to get selectmode from.
Note the selectmode is actually set back from edge selectmode in certain
cases (see `USE_LOOPSLIDE_HACK`), this patch changes that as well to act
on all participating meshes.
Maniphest Tasks: T95752
Differential Revision: https://developer.blender.org/D14791
This commit implements copying of materials and material indices from
all of the boolean node's input meshes. The materials are added to the
final mesh in the order that they appear when looking through the
materials of the input meshes in the same order of the multi-socket
input node.
All material remapping is done with mesh-level materials. Object-level
materials are not considered, since the meshes don't come from objects.
Merging all materials rather than just the materials on the first mesh
requires a change to the boolean-mesh conversion. This subtly changes
the behavior for object linked materials, but in a good way I think;
now the material remap arrays are respected no matter the number
of materials on the first mesh input.
Differential Revision: https://developer.blender.org/D14788
The thickness in the deform mode was just correct if the radius when
drawing a stroke was set to 20. Now all factors that influence the
stroke thickness are considered in deform mode.
Differential Revision: https://developer.blender.org/D14691
Relinking code would weirdly enough allow clearing of extra/fake user
status on IDs used by affected ID, which would be utterly wrong.
Fairly unclear why this was working OK in reported case before rBa71a513def20,
could not spot any obvious reason just from reading code...
Also, in `libblock_remap_data_update_tags`, only transfer fake user
status if `new_id` is not NULL (otherwise that would have removed that
falg from `old_id`, without actually transferring it to anything).
This patch adds allows the user to select the initial fill color when
adding a new color attribute layer.
---
{F13035372}
Reviewed By: JulienKaspar, joeedh
Differential Revision: https://developer.blender.org/D14743
* BLENDER_VERSION_CYCLE set to beta
* Update pipeline_config.yaml to point to 3.2 branches and svn tags
* Update and uncomment BLENDER_VERSION in download.cmake
This commit introduce back support for all geometry types and all nodetree support.
Only the forward shading pipeline is implemented for now.
Vertex Displacement is automatically enabled for now.
Lighting & Shading is placeholder.
Related Task: T93220
# Conflicts:
# source/blender/draw/engines/eevee_next/eevee_engine.cc
# source/blender/gpu/CMakeLists.txt
This should have no functional changes.
This reduce the complexity of the shader by only supporting 2 colors.
We never use more than 2 color in practice and this makes usage not require
a UBO.
The old python importer had a "if do_transparency, set blend_method to
BLEND" type of logic. This bit was missing in the new importer; it was
only setting the eevee blend method when a transparency texture was
present, but not in other cases of transparency (as driven by MTL
"illum" mode).
Reviewd By: Howard Trickey
Differential Revision: https://developer.blender.org/D14783
Even if available OBJ/MTL format documentations don't explicitly specify
which characters can possibly separate keywords & arguments, turns out
some files out there in the wild use TAB character after the line
keywords. Which is something the new 3.2 importer was not quite
expecting (T97417).
Fix this by factoring out a utility function that checks if line starts
with a keyword followed by any whitespace, and using that across the
importer. Also fix some other "possible whitespace around name-like
parts" of obj/mtl parser as pointed out by the repro files in T97417.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14782
- Fix default_value initialization of custom node tree interface:
This was crashing when adding a custom interface socket to a tree.
The node_socket_set_typeinfo function was called too early, creating a
default float socket, which then doesn't match the socket type after
changing to the custom type.
The node_socket_set_typeinfo only allocates and initializes
default_value when it isn't already set. That is because the function is
used either when creating new sockets or to initialize typeinfo after
loading files. So default_value has to be either null or has to be
matching the current type already.
- Fix RNA flag for string return value of the valid_socket_type callback:
String return values of registerable RNA functions need a
PROP_THICK_WRAP flag since they don't have a fixed buffer to write into.
This should have (mostly) no functional changes.
Support for clipping was added to the shaders but it is not enabled for now
as we wait for the Gpencil engine to support clipping.
Simple port.
Also a description of how each shader is used has been added.
NOTE: The shader created using `OVERLAY_shader_paint_vertcol` cannot be tested.
Apparently it is created but not used.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D14812
The Multiscatter GGX code was missing the same-side checks for incoming and
outgoing directions w.r.t. to shading and geometry normal.
Should not be needed for the Glass variant since it intentionally has both
reflection and transmission.
This allows object extras such as image-empties to be shown in the VR
viewport/headset display. Being able to see reference images in VR can
be useful for architectural walkthroughs and 3D modeling applications.
Since users may not want to see all object extras (lights, cameras,
etc.), per-object-type visibility settings are also added as session
options.
By slightly refactoring the definition of the 3D View object types
visibility panel (note: no functional changes), the VR Scene Inspection
add-on can show a similar panel without duplicating code. When VR
selection is possible in the future, the object type select options can
also be enabled.
Reviewed By: Severin
Differential Revision: https://developer.blender.org/D14220
A change proposed in T97697, using existing saturation as a multiplier for the filter operation
{F13038602}
Review By: Joseph Eagar, Julian Kaspar
Differential Revision: https://developer.blender.org/D14808
Ref D14808
Add "stageMetersPerUnit" render setting for USD files that have that set to
something other than the default (e.g. exported by Blender).
And fix a crash when an application creates a Hydra render pass on a thread
that does not have an OpenGL context current.
Long term, this should replace the XML format. This reuses the Hydra render
delegate implementation, and so supports the same features. The same command
line options and GUI work for both XML and USD also.
The implementation of this is still disabled, waiting for some refactoring of
USD library linking. However we want the Cycles code to be in sync between
repositories for the 3.2 release.
Ref T96731
* Leave code for building the render delegate against other applications and
their USD libraries to the Cycles repository, since this is not a great fit.
In the Blender repository, always use Blender's USD libraries now that they
include Hydra support.
* Hide non-USD symbols from the hdCycles shared library, to avoid library
version conflicts.
* Share Apple framework linking between the standalone app and plugin.
* Add cycles_hydra module, to be shared between the standalone app and plugin.
* Bring external libs code in sync with standalone repo, adding various missing
libraries.
* Move some cmake include directories to the top level cycles source folder
because we need to control their global order, to ensure we link against the
correct headers with mixed Blender libraries and external USD libraries.
In the current code we do not render any curves if they have not been
converted to meshes. This change makes the custom bone drawing try to
render mesh objects first and then falls back to curve objects if there
is no mesh data available.
Reviewed By: Clement
Differential Revision: http://developer.blender.org/D14804
While the reference would never be used in case of NULL pointer, this
bit of code was not really clear and nice, so make it less ambiguous
now. Also add early return in case a NULL idv pointeris actually passed.
While code deleting old (relocated to new ones) IDs would work fine in
typical cases, it would fail badly in others, when e.g. drivers would
create 'reversed' dependency from the obdata ID to the object ID.
This commit uses a less efficient, but much safer method. It also
ensures no relocated old IDs is left over in the file (previous version
could easily leave some old IDs from the old library until a full
save/reload cycle happened).
While relatively minor issue, it could become fairly annoying in a big
project, since once an ID is tagged as directly linked it tend to remain
as such.
Now also force indirect tagging when loading new IDs as part of a lib
relocation process, since the ones actually directly linked will be
tagged as such later on.
While this only had minor potential effect, both code incrementing
usercount of newly remapped IDs were wrong.
Original one would by-pass any 'ensured user' handling, newer one would
systematically make the ID directly linked...
`id_us_plus_no_lib` is to be used here.
Fact that those options are only used in a specific case, and that the
same behavior is ensured in a different part of the code in other cases,
is fairly confusing and unfortunate... At least document it.
This was caused by the compilation job being created suspended (to avoid
UI slowdown because of the material Preview Icons). The suspended job
wasn't passing the `WM_jobs_test` in `DRW_deferred_shader_remove` and
the material would still be in the compile queue with its status equal to
`GPU_MAT_QUEUED`. This would block the main thread in the waiting loop.
But since the job manager timer needs to execute in the main thread, the
compilation job was never being pushed out of its suspended state.
This lead to a complete lock situation.
The solution is to use `WM_jobs_customdata_from_type` which does exactly
what we need.
Also fixed a nullptr free.
* Float/double promotion warnings were mainly meant for avoiding slow
operatiosn in the kernel. Limit it to that to avoid hard to fix warnings
in Hydra.
* Const warnings in Hydra iterators.
* Unused variable warnings when building without glog.
* Wrong camera enum comparisons in assert.
* PASS_UNUSED is not a pass type, only for pass offsets.
There were two calls to access job's custom data. One of them
ignored job type, the other one ignored job owner.
Now there is a single function to access job's custom data.
If the job type or owner is not relevant NULL or WM_JOB_TYPE_ANY
can be passes explicitly.
Differential Revision: https://developer.blender.org/D14803
When pushing down an Action onto an NLA track, set the new Strip's
influence to the Action's influence. This is done by setting a key due
to the way the NLA Strip influence works (it's either animated, or
ignored).
Reviewed By: sybren, RiggingDojo
Differential Revision: https://developer.blender.org/D14719
For a single day in 2015 between rBff3d535bc2a6309 and rB945f32e66d6ada,
custom data structs could be written with an incorrect maxlayer field.
This means that custom data structs read from those files would think
they have more space to add new layers than they actually did, causing
a crash if more layers were added. This was found while investigating
a crash from D14365 which adds new face corner layers in versioning.
The fix is to reset all maxlayer integers to totlayer, which is
done when writing files in current Blender anyway.
The file tests/render/motion_blur/camera_zoom_blur_perspective.blend
has this problem as it was added on 2015-07-21, right between the two
commits. Adding three custom data layers in versioning code would crash.
The problem was originally found and investigated by Martijn Versteegh
(@Baardaap), thanks!
Differential Revision: https://developer.blender.org/D14786
Add the Discontinuity (Euler) Filter operator to the Dope Sheet->Key
menu, so it's not only available from the Graph Editor->Key menu. On
request of @pablico, see T95386.
This required changing a poll function which is used by a bunch of other
operators, which seemed scary at first, but my thinking is that if an
operator can execute in the Graph Editor, then it should also be able to
execute in the Dope Sheet. I think the only reason this wouldn't be true
is if we were storing animation data in the UI itself, which of course
we don't. So I hope this is okay.
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D14015
Simple port with a few cosmetic changes:
- Attribute named "color" for indices VBO is now called "index"
- The indices VBO is now composed of `int`s instead of `uint`s (this simplifies the source)
Differential Revision: https://developer.blender.org/D14800
This patch has also been contributed upstream, so will not be needed anymore
soon. Also automatically clear cached variables for new nanovdb location in
libs.
NanoVDB is now bundled with OpenVDB (since rBb9c37608a9e) instead of a
separate package.
This still doesn't include our patch to support AMD HIP; that'll be
committed separately soon.
The bitwise XOR used to compute the delta (`changed`) might produce NaN and
thus produce undefined behavior when comparing to another float (because of
float promotion).
shader_builder had no manifest set, leading
to the classic common control version being
loaded which in turn caused an import error
and made the executable fail to initialize.
After rB47276b847017, for certain socket types such as object or
material, the name of the item is not obtained correctly leading
the tooltip to display random non-character memory values as text.
Differential Revision: https://developer.blender.org/D14762
When the object's position depends on the geometry and the geometry
depends on the object's position, we can't count on the object's
evaluated geometry to be available. Lattices and mesh objects have
equivalent checks in this vertex parenting function.
Differential Revision: https://developer.blender.org/D14781
Along with the port to createInfo this also:
- Packs constant uniforms in a UBO.
- Share enum declaration and unify names
- Makes codeflow easier to undestand.
- Split grid data to its own struct.
# Conflicts:
# source/blender/draw/engines/overlay/overlay_grid.c
For properties exposed to the geometry nodes modifier, decorators didn't
work at all for colors and it only worked on the X component of vectors.
The fix is to use -1 for the RNA index of the decorator button instead
of 1, which lets the UI code figure out what to do with arrays.
This patch modifies tooltips of attributes and UV maps to resolve
inconsistencies. It also restores the vertex color icon that went
missing from the UI lists when color attributes replaced vertex colors.
Fixes T97614
Differential Revision: https://developer.blender.org/D14768
Recent cleanups 9a8669ac81 and 1c790555a0
incorrectly interpereted the bitfield width syntax as a default
value. Also resolve two other compilation warnings.
Currently, the `eval` and `pdf` are not explicitly set to zero when a BSDF sample is invalid (e.g., below the upper hemisphere), when calling
`bsdf_sample` or `bsdf_eval`. It is assumed that `eval` and `pdf` are set to zero before these functions are called, which can cause problems if not.
This patch fixes this potential problem by explicitly setting `eval` and `pdf` to zero when the sampled direction is invalid.
I also added a sanity check if `eval` and `pdf` are valid (i.e., >= 0.f).
The check is activated when build in debug mode and with the `WITH_CYCLES_DEBUG` set to `ON`.
Reviewed By: brecht, sergey
Differential Revision: https://developer.blender.org/D14776
When converting from XYZ to RGB it can happen, in some sky models, that the resulting RGB values are negative.
Atm, this is not considered and the returned values for the sky model can be negative.
This patch clamps the returned RGB values to be `= 0.f`
Reviewed By: brecht, sergey
Differential Revision: https://developer.blender.org/D14777
Allow the session to save the choice for domain and data type since
it is highly likely that the user intends to use the same settings
for subsequent color attributes.
Use expanded button selectors for domain and data type since there
are only two options for each.
Differential Revision: https://developer.blender.org/D14785
A snap state can be replaced by another snap state of a gizmo or cursor.
The snap gizmo should only change its state, not the current state.
It's not really a problem currently.
D14686 added autopep8 which implicitly dragged in
toml and pycodestyle which were not versioned, this
diff adds explicit versions of these deps so there
won't be any version changes if we rebuild in the
future.
Reviewed By: brecht, sybren
Differential Revision: https://developer.blender.org/D14793
If the measure gizmo is enabled, its snap state is used in the snap update.
As it does not require a plane, the orientation of the plane is not
calculated.
However, the calculation of the plane's orientation must prevail over
the states.
`PXR_ENABLE_OSL_SUPPORT=OFF`: OpenShadingLanguage is an optional
dependency of the Imaging module. However, since that module was
included for its support for converting primitive shapes (sphere, cube,
etc.) to geometry, OSL is not necessary. Disabling it will make it
simpler to build Blender; currently only Cycles uses OSL.
`PXR_ENABLE_GL_SUPPORT=OFF`: GL support on Linux also links to X11
libraries. Enabling it would break headless or Wayland-only builds.
OpenGL support would be useful if someone wants to work on a Hydra
viewport in Blender; when that's actually being worked on, we could
patch in a new PXR_ENABLE_X11_SUPPORT option (to separate OpenGL from
X11) and contribute it upstream.
`PXR_BUILD_OPENIMAGEIO_PLUGIN=OFF`: It's used for loading image textures
in Hydra Storm / Embree renderers which we don't use.
Reviewed By: LazyDodo, brecht, makowalski
Differential Revision: https://developer.blender.org/D14792
Split 'ED_view3d_cursor_snap_data_get' into 'update' and 'get' functions
Sometimes we just want to update and sometimes we just get the result.
Make it clear.
When height is limited, it is defined by space occupied by strips,
but at least channels 1 to 7 will be always visible. This allows it to
easily overview timeline content by zooming out to maximum extent in Y
axis and panning in X axis.
More channels can be "created" on demand by moving strip to higher
channel. When strip is removed and highest channel becomes empty, view
will stay as is until it is moved down. Then new highest point is
remembered and it is not possible to pan upwards until strip is moved to
higher channel.
Limiting takes into account height of scrubbing and markers area as
well as scrollers. This means that when zoomed out to maximum extent,
no strips are obstructed by fixed UI element.
Fixes T57976
Reviewed By: Severin
Differential Revision: https://developer.blender.org/D14263
This complex comment was hard to parse visually.
There was some odd line breaking going on, and together with no
indentation for the continued lines, it was just a blob of text with no
visual structure. You wouldn't see easily where the description of an
argument started or ended.
Geometry node group inputs and outputs get a new property that controls
the attribute name used for that field input/output when assigning the
node group to a modifier for the first time. If the default name is assigned
to an input, the default "Use attribute name" is true .
In order to properly detect when a node group is first assigned,
the modifier now clears its properties when clearing the node group.
Ref T96707
Differential Revision: https://developer.blender.org/D14761
This patch adds the drag and drop strip previews in the VSE.
It also adds two new functions to the drag and drop API.
1. "draw_in_view" for callbacks that wants to draw elements in local viewport coordinates
2. "on_drag_start" that can be used for prefetching data only once at the start of the drag.
Reviewed By: Julian, Campbell
Differential Revision: http://developer.blender.org/D14560
When using an offset modifier on a grease pencil object, the performance
could be impacted due to the randomize option introduced by rB6a2bc40e0131.
Even if the option was not used (offset, rotation, scale set to zero), the modifier
would still compute the random transformation matrix.
The patch checks if the randomization is used and only then caluclates the matrix.
Reviewed By: #grease_pencil, antoniov
Differential Revision: https://developer.blender.org/D14553
As the default handle type in Blender is 'Auto Clamped' the Equalize
Handles operator will often appear to have no affect on the selected
keyframes on which it is run. If either of the keyframes' handle types
are 'Auto', 'Auto Clamped', or 'Vector', this patch will convert the
handles to 'Aligned'.
Reviewed By: sybren
Maniphest Tasks: T96476
Differential Revision: https://developer.blender.org/D14345
Since rBfa43c47c7cb8446b632a4c0f712162ba615fe51f the progress bar do not
show the compilation progress. This was misleading as users could think
it could be canceled or prevent rendering.
Now we just show how many shaders are still in the compilation queue inside
each viewport. This number is more accurate than the percentage that was
previously displayed in the progress bar.
This uses refcounter instead of double thread mutexes. This should be
more robust and avoir use after free situation.
Also remove redundant structures and the use of scene as the job owner.
Removal of the `WM_redraw_windows` call in `wm_file_write` introduced
in rB7a9cfd08a8d7415ff004809cf62570be9152273e as that can cause
crashing while saving from a script.
See D14780 for more details.
Differential Revision: https://developer.blender.org/D14780
Reviewed by Campbell Barton
At least on the Mac, `std::sort` sometimes passes the same value in the
`a` and `b` parameters.
The `true` return is only for cases where `a` is less than `b`.
This is to avoid use after free when the `GPUPass` gets compiled after the
original `GPUMaterial` used to create it was freed.
The issue was introduced by rBfa3bd17ae873
The subdivision is always recomputed on the CPU when displaying stats
if the mesh is animated which leads to bad performance.
This caches the subdivision topology counters from the draw code in the
mesh runtime and uses them for the viewport statistics.
Differential Revision: https://developer.blender.org/D14774
The crash is caused as the subdivision wrapper does not have loop
normals, which are generally computed at the end of the modifier stack
evaluation via `mesh_calc_modifier_final_normals`. (Note that they are
initially computed, but deleted by the subdivision wrapper creation.)
This records in the mesh runtime whether loop normals should have been
computed and computes them alongside the subdivision wrapper.
Differential Revision: https://developer.blender.org/D14489
There are a number of shaders, most notably grid_frag.glsl, which rely on default assignments to uniform values within shaders. This is not currently supported by the shader uniform push model implemented for the Metal backend, wherein uniform updates are pushed as a singular block of data. Any default assignment would become over-written.
As such, adding assignments of these default values in the high-level, to ensure the correct value is written for all APIs. This likely impacts Vulkan push-constants as well.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Maniphest Tasks: T96261
Differential Revision: https://developer.blender.org/D14555
This covers implementation of the GPUTexture abstraction for the Metal backend, with additional utility functionality as required.
Some components have been temporarily disabled pending dependencies on upcoming Metal backend components, and these will be addressed as the backend is fleshed out.
One core challenge addressed in the Metal backend is the requirement for read/update routines for textures. MTLBlitCommandEncoders offer a limited range of the full functionality provided by OpenGLs texture update and read functions such that a series of compute kernels have been implemented to provide advanced functionality such as data format conversion and partial/swizzled component updates.
This diff is provided in full, but if further division is required for purposes of code review, this can be done.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Maniphest Tasks: T96261
Differential Revision: https://developer.blender.org/D14543
When more than one, consecutive, subdivision modifier is used on a Mesh,
the last subsurf modifier is used for GPU subdivision even though it
might be disabled. This is because retrieving the last subsurf modifier
in the draw code did not check whether the modifier was disabled or not.
To fix this, the session UUID of the modifier which delegated evaluation
to the GPU code is cached and used in the draw to select the right subsurf
modifier.
Differential Revision: https://developer.blender.org/D14488
This is a stripped down version of D14645 without the scene specialisation optimisations.
The two major changes in this patch are:
- Enables more aggressive inlining on Apple Silicon resulting in a 1.1x speedup and 10% reduction in spill, at the cost of longer pipeline build times
- Revival of shader binary archives through a new ShaderCache which is shared between MetalDevice instances using the same physical MTLDevice. This mitigates the extra compile times via explicit caching (rather than, as before, relying on the implicit system shader cache which can be purged without notice)
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14763
Adds a column to the right in the Library Overrides Hierarchies view
mode to toggle editability of library overrides.
Note that making a library override non-editable currently involves
clearing all overridden properties. This is an arguable design choice,
we should probably at least warn the user before doing this.
Part of T95802.
Reviewed by: Bastien Montagne
Differential Revision: https://developer.blender.org/D14653
The code to compare buttons from the previous to the current frame, to
see if they match (an thus should keep the same state) was quite
generic, and didn't allow much flexibility/customization. For some
cases this isn't enough, and a more specific comparison is needed. Say
if some buttons don't actually store comparable data themselves, only
via the button context. This was the case in D14653.
It was possible to set context pointers for buttons via the layout, but
not for buttons in places where the layout system wasn't used (where
buttons are placed manually). This is needed for buttons in the
Outliner, see D14653.
/maxcpucount:1 and /m are the same option with the latter
one using all cores available, leading to the situation
where msbuild would start N side by side project builds
that all tried to use N cores as well. leading to severe
memory and compute starvation during the deps build.
Goals:
* Better high level control over where devirtualization occurs. There is always
a trade-off between performance and compile-time/binary-size.
* Simplify using array devirtualization.
* Better performance for cases where devirtualization wasn't used before.
Many geometry nodes accept fields as inputs. Internally, that means that the
execution functions have to accept so called "virtual arrays" as inputs. Those
can be e.g. actual arrays, just single values, or lazily computed arrays.
Due to these different possible virtual arrays implementations, access to
individual elements is slower than it would be if everything was just a normal
array (access does through a virtual function call). For more complex execution
functions, this overhead does not matter, but for small functions (like a simple
addition) it very much does. The virtual function call also prevents the compiler
from doing some optimizations (e.g. loop unrolling and inserting simd instructions).
The solution is to "devirtualize" the virtual arrays for small functions where the
overhead is measurable. Essentially, the function is generated many times with
different array types as input. Then there is a run-time dispatch that calls the
best implementation. We have been doing devirtualization in e.g. math nodes
for a long time already. This patch just generalizes the concept and makes it
easier to control. It also makes it easier to investigate the different trade-offs
when it comes to devirtualization.
Nodes that we've optimized using devirtualization before didn't get a speedup.
However, a couple of nodes are using devirtualization now, that didn't before.
Those got a 2-4x speedup in common cases.
* Map Range
* Random Value
* Switch
* Combine XYZ
Differential Revision: https://developer.blender.org/D14628
The new name is `Internal Dependencies`.
* Is more inline with the general goal of the panel.
* Can also show which external objects are used in the node tree in the future.
This name was choosen in the geometry nodes submodule meeting (2022-04-25).
Differential Revision: https://developer.blender.org/D14752
This macro allows defining a default argument for when the translation
unit is compiled in C++. Otherwise (in C), the argument has to be passed
explicitly.
A couple of benefits:
* Default arguments are a nice quality-of-life feature in C++. It's
annoying if these can't be used in C++ files, just because the header
with the function declaration still needs to be C compatible.
* Adds useful information to the API declaration. E.g. that an argument
can be nullptr.
* Should help us to move to using default arguments more, helping
readability (arguably)
Used in D14653.
Reviewed By: LazyDodo
Differential Revision: https://developer.blender.org/D14654
This commit adds support for the curves object to the apply modifier
operator. A warning is added when the evaluated result of the modifier
doesn't contain any curves data.
Differential Revision: https://developer.blender.org/D14730
Motion paths can now be initialised to more sensible frame ranges,
rather than simply 1-250:
- Scene Frame Range
- Selected Keyframes
- All Keyframes
Reviewed By: sybren, looch, dfelinto, pablico
Maniphest Tasks: T93047
Differential Revision: https://developer.blender.org/D13687
Add missing check as the context override dict may have been copied
since it was assigned, also initialize the context manager with
PyType_Ready, while it didn't cause any errors - it's expected
that all types are initialized.
Aggressive needs to be enabled for many useful edits to take effect,
the ignore list is currently used to disable edits that may need
further checks/investigation before they're enabled.
Note that aggressive was already enabled for the:
source/tools/utils/autopep8_clean.py script which was previously used
when applying autopep8.
Failure to clip automatic-names meant named could end with a "." for e.g.
Error in [0] meant the clipped text was copied then
immediately overwritten.
[0]: 354e6b9c18
- De-duplicate txt_new_linen & txt_new_line.
- Don't accept NULL as input for txt_new_linen & txt_new_line
(callers can pass in an empty string instead).
- Avoid duplicate strlen calls in txt_new_linen.
- Use memcpy when the length of the string is known in txt_delete_sel &
BKE_text_load_ex.
`attribute_try_create` didn't understand that the vertex group
attribute already existed because it only looks for names in custom
data layers when the domain matches. Using `attribute_exists`
unfortunately requires another loop through all attribute names,
but that should be optimized separately in the future anyway.
Differential Revision: https://developer.blender.org/D14756
Added a fallback path to compute the
cursor radius for when the stroke
starts over a blank area of space
(in which case SCULPT_cursor_geometry_update
fails).
This commit makes the `MeshVertex.normal` property read-only.
In practice it already was, since the value could be overwritten at any
time if code requests updated normals, so this just clarifies that
position and avoids misleading users.
Differential Revision: https://developer.blender.org/D14696
auto-iteration property in mask filter
Note: Auto-iteration is still set manually
for increase/decrease contrast. These should
probably become their own operators.
by showing redo panel.
The A hotkey has "auto iteration" enabled by default,
which calculates the number of times to run the filter
using a heuristic based on vertex count.
To make clear to the user what is going on the redo
panel is now shown for the mask filter operator.
NOTE: I discovered the source of the bug where sculpt
operators' redo panels were greyed out. The name
fed to SCULPT_undo_push_begin must match the operator
name. I've added a comment in sculpt_intern explaining
this.
Remembering the number of curves of every type makes it fast to know
whether processing specific to a single curve type has to be done.
This information was accessed in quite a few places, so this should be
an overall reduction in overhead for the new curves type.
The cache is computed eagerly, in other words every time after changing
the curve types. In order to reduce verbosity I added helper functions
for some common ways to set the types.
Differential Revision: https://developer.blender.org/D14732
Changes:
- Remove `BLI_memarena` (Use `MEM_cnew` and `MEM_delete` to allocate cached data)
- Implement `snap_object_data_mesh_free_ensure` and `snap_object_data_editmesh_free_ensure` and skip need to get original key Object for editmesh data
- Use `BMEditMesh` as key for editmesh `Ghash`
- Make a better distinction between `SnapObjectData`s. (`SnapData_Mesh` and `SnapData_EditMesh`)
The editing data of a `SURF`s is similar to that of Curves and should be supported for snapping.
But unlike Curve objects, for snapping, only support the nurb points if the object is in edit mode.
This matches the solution for Meshes and avoids having to create a kind
of "boundbox" for the SURF nurb points.
* Adjust width based on node width, necessary to make the longer name below work.
* Show "X Named Attributes" in the overlay.
* Use "Accessed named attributes" in the tooltip.
Differential Revision: https://developer.blender.org/D14751
* If removing an attribute failed (even though it exists), don't log it as being used.
* Make warning message a bit more informative.
Differential Revision: https://developer.blender.org/D14750
View moves faster with two active directions.
This is probably because `dvec` is not normalized when moving in two directions.
Normalizing this direction vector will fix the problem.
Differential Revision: https://developer.blender.org/D14729
Since cbf033c055 the `matte_id` will be allocated in the node
storage for the forward compatibility purposes. However, this
field was never freed, leading to memory leak.
Causes annoying popup on macOS when running Cycles tests,
for example render_passes_cryptomatte_asset.blend
Differential Revision: https://developer.blender.org/D14728
Add Bake Action to the NLA edit menu to aid discoverablity and allow
people to understand that Bake Action is part of working with the NLA.
Part of the NLA road map improvement project for the Animation Module.
This was a community request to add access to the Bake without needing
to turn on developer tools in the preferences and then use search in the
NLA for bake.
It seems this was always intended, as the operator is called `nla.bake`.
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D14575
- Add missing doxy-section for Apply Parent Inverse Operator
- Use identity for None comparison in Python.
- Remove newline from operator doc-strings.
- Use '*' prefix multi-line C comment blocks.
- Separate filenames from doc-strings.
- Remove break after return.
While the ability to run `autopep8 .` to format Blender's Python code
is handy, the settings to perform this can conflict with other uses
of autopep8 (which editors may use to auto-format on save).
Some arguments now need to be passed in, e.g:
autopep8 . --in-place --recursive --jobs=0
We'll likely include this in `make format` convenience target so the
details for invoking autopep8 shouldn't be an issue in the long term.
The current code for computing tangents is not exactly fast.
This has been a long-standing issue, and recently came up again with T97378.
The main bottleneck is fetching the mesh data, since it's handled through a callback system and each vertex might have its data queried dozens of times.
I've tried a lot of things to optimize `mikktspace.c`, but unfortunately most weren't that useful:
- Vectorizing SVec3 gives a ~5% speedup, but I'm not sure if the additional ~70 lines of code are worth it
- Keeping an internal copy of the data instead of re-querying all the time helps a lot (~50-60% time reduction), but requires a lot of extra memory (~100 byte per face)
- Going C++ and replacing the internal quicksort with std::sort shows no difference
- Restructuring the entire file to be a header-only library so that the callbacks can be inlined gives ~10% reduction, but is a major change and deviation from the original library
In the end, two simple fixes that actually help remain:
- Don't re-query the number of faces in each loop iteration
- Don't bother looking for identical vertices if there's only one vertex with that hash
With this, time for the test case in T97378 goes from 6.64sec to 4.92sec. It's something I guess.
I feel like completely refactoring this library would not be a bad idea at some point, but for now it does the job...
Differential Revision: https://developer.blender.org/D14675
The uv fix just submitted had a bug where I forgot to wrap around
after adding 1. This apparently worked anyway in a debug build
but not in release build, hence the buildbot tests were failing.
Works for both Cycles and multires bake. Triangles are baked to multiple
UDIM images if they span across them, though such UV layouts are generally
discouraged as there is no filtering across UDIM tiles.
The bake margin currently only works within UDIM tiles. For the extend method
this is logical, for the adjacent faces method it may be useful to support
copying pixels from other UDIM tiles, though this seems somewhat complicated.
Fixes T95190
Ref T72390
Remove need for shadow caustic caster geometry to have a UV layout. UVs were
useful to maintain a consistent tangent frame across the surface while
performing the walk. A consistent tangent frame is necessary for rough
surfaces where a normal offset encodes the sampled h, which should point
towards the same direction across the mesh.
In order to get a continuous surface parametrization without UVs, the
technique described in this paper was implemented:
"The Natural-Constraint Representation of the Path Space for Efficient
Light Transport Simulation" (Supplementary Material), SIGGRAPH 2014.
In addition to implementing this feature:
* Shadow caustic casters without smooth normals are now ignored (triggered
some refactoring and cleaning).
* Hit point calculation was refactored using existing utils functions,
simplifying the code.
* The max number of solver iterations was reduced to 32, a solution is
usually found by then.
* Added generalized geometry term clamping (transfer matrix calculation can
sometimes get unstable).
* Add stop condition to Newton solver for more consistent CPU and GPU result.
* Add support for multi scatter GGX refraction.
Fixes T96990, T96991
Ref T94120
Differential Revision: https://developer.blender.org/D14623
This is fairly tricky to perform, since there is often very limited
contextual information available about the 'active' hierarchy to
override.
This commit is a first step, it is expected to handle decently well
cases like objects and obdata (recreating necessary object and
collection hierarchy, and/or hooking it to a potential existing
hierarchy), at least in most common cases.
Ref: {T95707}.
Extends the changes started in f31c3f8114 to completely separate
much of the DRW curves code from the particle hair drawing. In the short
term this increases duplication, but the idea is to simplify development
by making it easier to do larger changes to the new code, and the new
system will replace the particle hair at some point.
After this, only the shaders themselves are shared.
Differential Revision: https://developer.blender.org/D14699
Add macros to get/set boolean attributes, to set float2/float3
attributes and to get float2/float3 attributes via pointer access.
Needed for D14365 and further generic attribute integration.
Differential Revision: https://developer.blender.org/D14708
This substantially redoes the logic by which bevel chooses, for
the middle segment when there are an odd number of segments,
which face to interpolate in, and which vertices to snap to which
edges before doing that interpolation. It changes the UV layouts
of a number of the regression tests, for the better.
An example, in the reference bug, is a cube with all seams, unwrapped
and then packed with some margin around them, now looks much
better in UV space when there are an odd number of segments.
The original mistake I made in b9febb54a4 was thinking
that the input curve object data to `BKE_displist_make_curveTypes`
was already copied from the original. I think I misread some of its
`ID` flags. This commit places the result of curves evaluation in a
duplicated curve instead, and copies the edit mode pointers
necessary for drawing overlays. `Curve` needs to know not to
free those pointers.
I still don't have a full understanding of why some of the tactics I've
used work and others don't. I've probably tried around 8 different
solutions at this point, and this is the best I came up with.
The dependency graph seems to have some handling of edit mode
pointers that make the edit mode overlays work if the evaluated
result is only an empty curve created by the evaluated geometry set.
This doesn't work with the current method and I need to set the
edit mode pointers at the end of evaluation explicitly.
We're constrained by the confusing duality of the old curves system
combined with the new design using the evaluated geometry set.
Older areas of Blender expect the evaluated `Curve` to be a copy
of the original, even if it was replaced by some arbitrary evaluated mesh.
Differential Revision: https://developer.blender.org/D14561
Added some regex magic in i18n py module to also extract UI names from
all of our units definitions.
Those enum values are fully dynamically generated, so they cannot be
extracted from RNA introspection.
Caused by {rBcfa53e0fbeed}
Above commit mixed up source and destination meshes causing bad lookups
on calculated normals.
Now make sure we get normals from our destination mesh to project along.
Note this was only reported for Projected Face Interpolated mode, but
same was true for Projected Edge Interpolated mode (though that one is a
bit weird to test since I think there is generally something wrong with
that mode -- with or without rBcfa53e0fbeed).
Fixes T97528
Maniphest Tasks: T97528
Differential Revision: https://developer.blender.org/D14726
When in mesh editmode, attributes point to bmesh customdata, the
attribute data is empty since custom data is stored per element instead
of a single array there (same es UVs etc.).
Opposed to e.g. UVs, general attributes were not setting their data
length/size to zero in case of editmode though, which could lead to
- crash in Outliner Data Api view [that was reported in T95922]
- RuntimeError such as the following:
```
RuntimeError: bpy_prop_collection[index]: internal error, valid index 0
given in 8 sized collection, but value not found
```
Now check for mesh editmode in `BKE_id_attribute_data_length` (and
return zero in that case).
Alternatively, the check could also be done in
`rna_Attribute_data_length` only (such as UVs do in
`rna_MeshUVLoopLayer_data_length`).
Ref D11998
Fixes T95922
Maniphest Tasks: T95922
Differential Revision: https://developer.blender.org/D14714
Regression in 4d0f846b93,
passing selection through to drag relied on tweak events running
even when the press event was handled which is not the case for drag.
Fix for T84962
Before the patch, edit voxel size always displayed voxel size without units, just as a number in meters.
Now it changes like in the voxel remesh panel and shows correct units
Video:
{F13009428}
In adaptive mode:
{F13009435}
Reviewed By: JulienKaspar
Maniphest Tasks: T84962
Differential Revision: https://developer.blender.org/D14682
This adds pyproject.toml, needed to configure defaults for autopep8.
The file is auto-discovered in a similar way to .clang-format, other
tools could be configured here too. For now just configure autopep8 so
this can be enabled in IDE's without causing unexpected edits such as
wrapping lines over 80 columns in width.
Now autopep8 can be used from the root directory by running: autopep8 .
This uses multiple-jobs to run autopep8 over all Python scripts except
paths that are explicitly ignored in exclude defined by pyproject.toml.
Reviewed By: mont29, brecht, sybren
Ref D14686
This enables building of HIP binaries for AMD RDNA and RDNA2 GPUs.
This requires the 22.10 / ROCm 5.1 driver.
Ref T91571
Differential Revision: https://developer.blender.org/D14360
If the attribute already existed, but had a different domain or data type
than the user tried to write to it with (i.e. writing to `position` with
a float), then the data from field evaluation wasn't freed.
This restructures the geometry nodes modifier attribute writing process
to solve that problem and remove some of the nested if statements
that made the process confusing.
One case that still doesn't work is writing to a builtin attribute from
a different domain. If `OutputAttribute` gets that feature then that
could be supported here too.
Differential Revision: https://developer.blender.org/D14706
The problem is old.
rB52be06301257 (fixed by rB4b35d6950d4f) just masked it.
`Object->data`, on evaluated objects, is not a safe pointer to get
objects with the same `BMEditData`.
Use `Object->runtime.data_orig` instead.
As `GPU_PRIM_LINE_LOOP` is not supported on Vulkan or Metal and
`GPU_PRIM_TRI_FAN` is not supported on Metal, they will be removed in
future releases.
So it is important to inform users that they are obsolete and may not
be supported for a long time.
Release Notes: https://wiki.blender.org/wiki/Reference/Release_Notes/3.2/Python_API
Reviewed By: campbellbarton
Differential Revision: https://developer.blender.org/D14679
Property collection functions were not really in sync which could result
in crashes in UI_LISTS.
The reason is that attributes of type color defined on domains other than
Points or Corners are still valid, but should really be skipped for the
special "color_attributes".
`rna_AttributeGroup_color_length` itself was fine here, it skips these,
but the iterator (`rna_AttributeGroup_color_iterator_begin` /
`rna_Attributes_noncolor_layer_skip`) wasnt, so when a UI_LIST
filter_items() would iterate the collection it would actually get
results were it shouldnt.
Now check a suiting domain in `rna_Attributes_noncolor_layer_skip` as
well.
Maniphest Tasks: T97502
Differential Revision: https://developer.blender.org/D14717
Since {rBeae36be372a6b16ee3e76eff0485a47da4f3c230} the distinction
between float and byte colors is more explicit in the ui. So far, geometry
nodes couldn't really deal with byte colors in general. This patch fixes that.
There is still only one color socket, which contains float colors. Conversion
to and from byte colors is done when read from or writing to attributes.
* Support writing to byte color attributes in Store Named Attribute node.
* Support converting to/from byte color in attribute conversion operator.
* Support propagating byte color attributes.
* Add all the implicit conversions from byte colors to the other types.
* Display byte colors as integers in spreadsheet.
Differential Revision: https://developer.blender.org/D14705
This adds a new subpanel to the geometry nodes modifier which is just
used to display information about used attributes.
* A new panel is used because adding this information anywhere else
clutters the ui too much imo.
* The general layout is similar to that in the tooltip. I found it to be more
trouble than it's worth to share this code.
Possible future improvements:
* Don't show the panel if there are no used named attributes.
* Add some heuristics to determine which named attributes the user does
not have to care about because they are only used in the node group
and don't affect anything else.
Differential Revision: https://developer.blender.org/D14701
Very easy fix, the bug seemed to be a result of a typo on the right-most margin.
Old: {F13013777}
New: {F13013782}
Maniphest Tasks: T97497
Differential Revision: https://developer.blender.org/D14711
This was projecting the unnormalized z scale axis onto the plane defined
by the view vector. If object scale was very small, this made the empty
still visible at viewing angles far from the object axis.
Now use the normalized z scale axis to make this work the same at all
object scales.
Fixes T97004.
Maniphest Tasks: T97004
Differential Revision: https://developer.blender.org/D14557
This was possible with the gizmo, but no using the operator (e.g. from
the sidebar).
Now store original offsets and reset to these on calcel (ESC or RMB).
Maniphest Tasks: T97465
Differential Revision: https://developer.blender.org/D14704
Text inserted via TEXT_OT_insert would always have auto-close
logic applies which interfered any insertion of literal strings
containing brackets.
Now auto-closing brackets is restricted to characters read from
events from the operators invoke functions.
Sculpt paint tools now pop up an error message if
dynamic topology or multires are enabled.
Implementation notes:
* SCULPT_vertex_colors_poll is now a static function in sculpt_ops.c.
It is now used solely by the legacy color attribute conversion
operators (SCULPT_OT_vertex_to_loop_colors and SCULPT_OT_loop_to_vertex_colors)
and should be deleted when they are.
* There is a new method, SCULPT_handles_colors_report, that returns true if
the sculpt session can handle color attributes; otherwise it returns false
and displays an error message to the user.
- Verrtex paint mode has been refactored into C++ templates.
It now works with both byte and float colors and point
& corner attribute domains.
- There is a new API for mixing colors (also based
on C++ templates). Unlike the existing APIs byte
and float colors are interpolated identically.
Interpolation does happen in a squared rgb space,
this may be changed in the future.
- Vertex paint now uses the sculpt undo system.
Reviewed By: Brecht Van Lommel.
Differential Revision: https://developer.blender.org/D14179
Ref D14179
Python 3.10 has added "soft keywords" [0] to their list of identifiers.
This patch adds these soft keywords to the list of builtin functions
that the text editor searches for when highlighting Python code.
The only soft keywords that Python 3.10 current has are: `match`,
`case`, and `_`, but more will likely be added in future versions.
Currently, the `_` soft keyword is ignored from highlighting. It is a
wildcard matching pattern when used with `case` (similar to `default`
for `switch`es in C/C++), but `_` is far more often used in other
contexts where highlighting the `_` might seem strange. For example,
ignoring elements when unpacking tuples (`_, g, _, a = color`).
This patch also updates the commented Python code for creating the list
of keywords, for convenience.
Before:
{F13012878}
After:
{F13012880}
Example from PEP-636 [1]
Note: These soft keywords are only reserved under specific contexts.
However, in order for the text editor to know when the keywords are used
in the appropriate contexts, the text editor would need a full-blown
Python grammar [2] parser. So, for now, these keywords are simply added
in along with the other keywords in order to highlight them in the text
editor.
[0]: https://docs.python.org/3/reference/lexical_analysis.html#soft-keywords
[1]: https://peps.python.org/pep-0636/#matching-specific-values
[2]: https://docs.python.org/3/reference/grammar.html
Ref D14707
Currently the "exclude" option for autopep8 isn't as reliable as it
should be since passing in absolute paths to autopep8 causes
the paths not to match. See: D14686 for details.
So explicitly disable autopep8 in this generated file (the generator
has already been updated).
Also use spaces for indentation otherwise autopep8 re-indents them.
This seems like a bug in autopep8 since it's changing lines with
autopep8 disabled. Use a workaround instead of looking into a fix since
it's simpler for all our Python files to use spaces instead of tabs and
there isn't much benefit mixing indentation for scripts.
Sometimes, when moving strip with 2 input effect attached and causing
strip overlap, this overlap is resolved incorrectly - too big offset
is applied. This is because effects are not taken into consideration
when "shuffeling" to resolve overlap.
To fix usual cases (transitions), overlap between strip and it's effect
is considered to be impossible.
There are edge cases, but these would be much more complicated to
implement and could have negative impact on performance.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D14578
Crash was caused by incorrectly assuming, that rendered strip is meta
when editing code in bulk, but this wasn't true and strip had no
channels initialized, which caused crash on NULL dereference.
Correct approach is to find list of channels where on same level as
rendered strip, similar to how `SEQ_get_seqbase_by_seq` function works
for list of strips.
This reverts commit 390b9f1305. It seems to
break things on Linux for unknown reasons, so leave it out for now. A solution
to this will be required for Vega cards though.
There is not much point in having those editable in overrides, and since
those are pointers, their value always differs from ref linked ID vs.
local override one, generating 'noise' in Outliner's override property
view.
Building against the existing 3.1 libraries should continue to work, until
the precompiled libraries are committed for all platforms.
* Enable WebP by default.
* Update Windows for new library file names.
* Automatically clear outdated CMake cache variables when upgrading to new
libraries.
* Fix static library linking order issues on Linux for OpenEXR and OpenVDB.
Implemented by Ray Molenkamp, Sybren Stüvel and Brecht Van Lommel.
Ref T95206
The "PROP" in the name reflects its generic status, and removing
"LOOP" makes sense because it is no longer associated with just
mesh face corners. In general the goal is to remove extra semantic
meaning from the custom data types.
For some reason, the rework of liboverride handling of Collection items
insertion (rB33c5e7bcd5e5) completely missed to update accordingly the
default liboverride apply code...
Many thanks to Wayde Moss (@GuiltyGhost) for the investigation and
proposed solution.
This was caused by the use of a reserved keyword macro that is not
directly used but causes an error on some compiler.
Change the occurences to not match the macros.
This file was skipped by source/tools/utils/autopep8_clean.py
since it doesn't have a .py extension, running the autopep8 tool
recursively detects Python scripts without extensions.
- Increase the stack level so the reported line number references
script authors code (not Blender's wrapper function).
- Include the operator name and poll/call usage in the warning.
Support a way to temporarily override the context from Python.
- Added method `Context.temp_override` context manager.
- Special support for windowing variables "window", "area" and "region",
other context members such as "active_object".
- Nesting context overrides is supported.
- Previous windowing members are restored when the context exists unless
they have been removed.
- Overriding context members by passing a dictionary into operators in
`bpy.ops` has been deprecated and warns when used.
This allows the window in a newly loaded file to be used, see: T92464
Reviewed by: mont29
Ref D13126
These functions can be used with PyArg_ParseTupleAndKeywords
(and related functions) to take typed RNA arguments without
having to extract and type-check them separately.
No functional changes, extracted from D13126.
There's a small typo in the tool tip for applying the Parent Inverse. This patch fixes that typo
old:
{F13010751}
new:
{F13010749}
Reviewed By: Blendify
Maniphest Tasks: T97437
Differential Revision: https://developer.blender.org/D14693
This is mostly a cleanup to avoid hardcoding the eager calculation of
normals it isn't necessary, by reducing calls to `BKE_mesh_calc_normals`
and by removing calls to `BKE_mesh_normals_tag_dirty` when the mesh
is newly created and already has dirty normals anyway. This reduces
boilerplate code and makes the "dirty by default" state more clear.
Any regressions from this commit should be easy to fix, though the
lazy calculation is solid enough that none are expected.
This adds support for rendering motion blur for volumes, using their
velocity field. This works for fluid simulations and imported VDB
volumes. For the latter, the name of the velocity field can be set per
volume object, with automatic detection of velocity fields that are
split into 3 scalar grids.
A new parameter is also added to scale velocity for more artistic control.
Like for Alembic and USD caches, a parameter to set the unit of time in
which the velocity vectors are expressed is also added. For Blender gas
simulations, the velocity unit should always be in seconds, so this is
only exposed for volume objects which may come from external OpenVDB
files.
These parameters are available under the `Render` panels for the fluid
domain and the volume object data properties respectively.
Credits: kernel advection code from Tangent Animation's Blackbird based
on earlier work by Geraldine Chua
Differential Revision: https://developer.blender.org/D14629
The fix ensures that the reference count for `IShellItem *pSI` is decremented,
preventing a memory leak. For `IFileOperation *pfo` the decrement of the
reference count is only attempted when `CoCreateInstance` is successful.
Additionally, the gotos have been replaced with nested if/else statements.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14681
Since shader sources are now parsed on demand via `GPUShaderCreateInfo`,
sources are not available to be read via
`GPU_shader_get_builtin_shader_code`.
Currently this results in a crash as the code tries to read `NULL`
pointers.
`GPU_shader_get_builtin_shader_code` was created with the intention of
informing the user how a builtin shader works, thus "replacing"
detailed documentation.
Therefore this function doesn't really have a practical use in an addon.
So, instead of updating the function (which would require several
changes to the gpu module), remove it and improve the documentation.
Release Notes: https://wiki.blender.org/wiki/Reference/Release_Notes/3.2/Python_API#Breaking_Changes
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D14678
Noted as part of T94775 investigation by Wayde Moss (@GuiltyGhost),
thanks!
NOTE: this mistake probably did not have any pratical impact in current
code, at least for overrides.
This is to make the codegen and shading nodes object type agnostic. This
is essential for flexibility of the engine to use the nodetree as it see
fits.
The essential volume attributes struct properties are moved to the
`GPUMaterialAttribute` which see its final input name set on creation.
The binding process is centralized into `draw_volume.cc` to avoid
duplicating the code between multiple engines. It mimics the hair attributes
process.
Volume object grid transforms and other per object uniforms are packed into
one UBO per object. The grid transform is now based on object which simplify
the matrix preparations.
This also gets rid of the double transforms and use object info orco factors
for volume objects.
Tagging @brecht because he did the initial implementation of Volume Grids.
Noticed while looking into oneAPI patch.
Seems to be unused, without clear indication why/when it might be
needed. Removing the function simplifies adding the new backend.
Differential Revision: https://developer.blender.org/D14652
Continuing the refactors described in T93602, this commit moves
the face dot tag set by the subdivision surface modifier out of
`MVert` to `MeshRuntime`. This clarifies its status as runtime data
and allows further refactoring of mesh positions in the future.
Before, `BKE_modifiers_uses_subsurf_facedots` was used to check
whether subsurf face dots should be drawn, but now we can just check
if the tags exist on the mesh. Modifiers that create new new geometry
or modify topology will already remove the array by clearing mesh
runtime data.
Differential Revision: https://developer.blender.org/D14680
The following methods weren't included in API docs.
- BlendDataLibraries.load
- BlendDataLibraries.write
- Text.region_as_string
- Text.region_from_string
This doesn't cause any functional change as the RNA property
of Bone wasn't overridden by the _GenericBone's property,
however the `children` property was documented twice, causing a warning.
The UI description for the `bpy.types.ActionFCurves.remove` was incorrect;
seemingly a copy-paste typo from the `rna_Action_groups_remove` function.
Reviewed By: sybren, Blendify
Differential Revision: https://developer.blender.org/D14659
Preserve multi socket link order when copying nodes or adding a new
group input sockets by linking directly to multi inputs from the group
input node's extension socket.
This is done by also copying the `multi_input_socket_index` when
the new links are created by copying existing or temporary links.
Reviewed By: Hans Goudey
Differential Revision: http://developer.blender.org/D14535
Keep the existing Rec.709 fit and convert to other colorspace if needed, it
seems accurate enough in practice, and keeps the same performance for the
default case.
Reimplement copy geometry node groups in C. The version implemented in
Python could also manually copy the animation data, but it's more
standard to do this with `BKE_id_copy_ex` and `LIB_ID_COPY_ACTIONS`.
Differential Revision: https://developer.blender.org/D14615
`rna_NodeSocket_refine` and `rna_Node_refine` take significant time
when building the `NodeTreeRef` acceleration data structure, but they
aren't used at all. This commit removes their eager calculation and
instead creates them on-demand in the `rna()` functions. They also
aren't inlined to avoid including `RNA_prototypes.h` in the header.
Differential Revision: https://developer.blender.org/D14674
Continued improvements to the new C++ based OBJ importer.
Performance: about 2x faster.
- Rungholt.obj (several meshes, 263MB file): Windows 12.7s -> 5.9s, Mac 7.7s -> 3.1s.
- Blender 3.0 splash (24k meshes, 2.4GB file): Windows 97.3s -> 53.6s, Mac 137.3s -> 80.0s.
- "Windows" is VS2022, AMD Ryzen 5950X (32 threads), "Mac" is Xcode/clang 13, M1Max (10 threads).
- Slightly reduced memory usage during import as well.
The performance gains are a combination of several things:
- Replacing `std::stof` / `std::stoi` with C++17 `from_chars`.
- Stop reading input file char-by-char using `std::getline`, and instead read in 64kb chunks, and parse from there (taking care of possibly handling lines split mid-way due to chunk boundaries).
- Removing abstractions for splitting a line by some char,
- Avoid tiny memory allocations: instead of storing a vector of polygon corners in each face, store all the corners in one big array, and per-face only store indices "where do corners start, and how many". Likewise, don't store full string names of material/group names for each face; only store indices into overall material/group names arrays.
- Stop always doing mesh validation, which is slow. Do it just like the Alembic importer does: only do validation if found some invalid faces during import, or if requested by the user via an import setting checkbox (which defaults to off).
- Stop doing "collection sync" for each object being added; instead do the collection sync right after creating all the objects.
Cleanup / Robustness:
This reworking of parser (see "removing abstractions" point above) means that all the functions that were in `parser_string_utils` file are gone, and replaced with different set of functions. However they are not OBJ specific, so as pointed out during review of the previous differential, they are now in `source/blender/io/common` library.
Added gtest coverage for said functions as well; something that was only indirectly covered by obj tests previously.
Rework of some bits of parsing made the parser actually better able to deal with invalid syntax. E.g. previously, if a face corner were a `/123` string, it would have incorrectly treated that as a vertex index (since it would get "hey that's one number" after splitting a string by a slash), instead of properly marking it as invalid syntax.
Added gtest coverage for .mtl parsing; something that was not covered by any tests at all previously.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14586
- Was not exporting "Poly" curves at all,
- Had a crash when a single object contains multiple curves of different types -- it had a check for "is this nurbs compatible?" only for the first curve, and then proceeded to treat the other curves as nurbs as well, without checking for validity.
Fixed both issues by doing the same logic as in the old python exporter:
- Poly curves are supported,
- Treat object as "nurbs compatible" only if all the curves within it are nurbs compatible.
Added test coverage in the gtest suite. While at it, made "all_curves" test use the "golden obj file template" style test, instead of a manually coded test that checks intermediate objects but does not check the final exported result.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14611
The new 3.1 OBJ exporter code had incorrect code to determine which vertex group a polygon belongs to -- for each vertex, it was only looking at the first vertex group it has, and not using the group weight either.
This 99% fixes T96824, but not 100% on the user's submitted mesh -- exactly two faces from that mesh get assigned a different group compared to the old exporter. Either choice is "correct" given that on these two faces there are two vertex groups with equal contribution. The old Python exporter was picking the group based on internal python group name map order, whereas the new C++ exporter is picking the group with the lowest index, in case of ties. I'm not sure if it's possible to fix this TBH, will have to wait until the importer is also C++.
While at it, the new vertex group calculation code was doing a lot of redundant work for each and every face (traversing group lists several times, allocating & freeing memory), so I fixed that. Exporting a 6-level subdivided Monkey mesh with 30 vertex groups was taking 810ms, now takes 330ms.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14500
This adds a basic unit test to check USD has been correctly
build with imaging components to support building both with
the old and new libs, it automatically adds the test when it
detects a library with imaging enabled. (platform devs will
have to pay attention it runs the test to validate the libs
build correctly)
For future use in the code it also defines a USD_HAS_IMAGING
define one could check if we're building against an USD lib
that has it (just because we build/ship with it, doesn't
mean downstream builds will ship with it, so we'll have
to be a little pro-active there)
Reviewed By: sybren
Differential Revision:https://developer.blender.org/D14456
In some circumstances singular files with numbers in their name (like
turntable-1080p.png or frame-1042.png) might be detected as a UDIM.
The root cause in this particular instance was because `BKE_image_get_tile_info`
believed this file to be a tiled texture and replaced the filename with
a tokenized version of it. However, later on, the code inside `image_open_single`
did not believe it was tiled because only 1 file was detected and our
tiled textures require at least 2. This discrepancy lead to the broken
filename situation.
This was a regression since rB180b66ae8a1f as that introduced the
tokenization changes.
Differential Revision: https://developer.blender.org/D14667
Also, as a suggestion, this patch changes Mask By Color and Color Filter to be the same shade of green as paint and smear tool icons
{F12998856}
{F12998857}
{F12998858}
Reviewed By: Julian Kaspar & Joseph Eagar
Differential Revision: https://developer.blender.org/D14632
Ref D14632
If the `wpoly` vector was small, the `wpoly_new` pointer could point
to part of its inline buffer on the stack, which becomes invalid out of
that scope. Instead, store `wpoly_new` as a span, and assign it properly
from the moved vector.
The HIG mentions that redundant words like "Enables" or "Activates"
shouldn't be used for tooltips of boolean properties. In this case
"When checked" was the redundant language that was implied by
the checkbox itself-- convention is to just state what the property
does when it's on.
Also change a few conjugations to the imperative and simplify
wording slightly, in order to be more consistent with language
elsewhere in Blender, and to be a bit more direct.
Differential Revision: https://developer.blender.org/D14644
Introduced by my recent commit: {rB3acbe2d1e933}
Lead to crash when insert_keyframe_direct() was called. Keyframing
crashed for NLA special properties (influence, animated_time),
driven properties, etc.
This commit changes the Curve to Mesh node to work with `Curves`
instead of `CurveEval`. The change ends up basically completely
rewriting the node, since the different attribute storage means that
the decisions made previously don't make much sense anymore.
The main loops are now "for each attribute: for each curve combination"
rather than the other way around, with the goal of taking advantage
of the locality of curve attributes. This improvement is quite
noticeable with many small curves; I measured a 4-5x improvement
(around 4-5s to <1s) when converting millions of curves to tens of
millions of faces. I didn't obverse any change in performance compared
to 3.1 with fewer curves though.
The changes also solve an algorithmic flaw where any interpolated
attributes would be evaluated for every curve combination instead
of just once per curve. This can be a large improvement when there
are many profile curves.
The code relies heavily on a function `foreach_curve_combination`
which calculates some basic information about each combination and
calls a templated function. I made assumptions about unnecessary reads
being removed by compiler optimizations. For further performance
improvements in the future that might be an area to investigate.
Another might be using a "for a group of curves: for each attribute:
for each curve" pattern to increase the locality of memory access.
Differential Revision: https://developer.blender.org/D14642
This is a partial fix to the fact that rendering with EEVEE or other GL
render engines is currently blocking the whole UI when asking to redraw
a viewport.
This patch just bypasses the viewport bind (containing the Draw Context
lock) and the following drawing. There is an update tagging to not
loose a viewport update if there was one asked.
Other queries other than view redraw (such as selection depth drawing or
offscreen drawing) will still block the whole UI as they need immediate
data feedback.
Ping @Severin for the change in `WM_draw_region_viewport_bind()`.
I'm assuming this is not an issue because it's highly unlikely to
bring up this operator during rendering. But in this case, it would just
lock as usual.
The bypassing in `DRW_notify_view_update` might be a bit overparanoid.
The ported normal calculation from ceed37fc5c neglected to
use the tilt attribute to rotate the normals around the tangents.
This commit adds that behavior back, adding a new math header file
to avoid duplicating the rotation function for normalized axes.
Differential Revision: https://developer.blender.org/D14655
This patch contains an initial pixel extractor for PBVH and an initial paint brush implementation.
PBVH is an accelleration structure blender uses internally to speed up 3d painting operations.
At this moment it is extensively used by sculpt, vertex painting and weight painting.
For the 3d texturing brush we will be using the PBVH for texture painting.
Currently PBVH is organized to work on geometry (vertices, polygons and triangles).
For texture painting this should be extended it to use pixels.
{F12995467}
Screen recording has been done on a Mac Mini with a 6 core 3.3 GHZ Intel processor.
# Scope
This patch only contains an extending uv seams to fix uv seams. This is not actually we want, but was easy to add
to make the brush usable.
Pixels are places in the PBVH_Leaf nodes. We want to introduce a special node for pixels, but that will be done
in a separate patch to keep the code review small. This reduces the painting performance when using
low and medium poly assets.
In workbench textures aren't forced to be shown. For now use Material/Rendered view.
# Rasterization process
The rasterization process will generate the pixel information for a leaf node. In the future those
leaf nodes will be split up into multiple leaf nodes to increase the performance when there
isn't enough geometry. For this patch this was left out of scope.
In order to do so every polygon should be uniquely assigned to a leaf node.
For each leaf node
for each polygon
If polygon not assigned
assign polygon to node.
Polygons are to complicated to be used directly we have to split the polygons into triangles.
For each leaf node
for each polygon
extract triangles from polygon.
The list of triangles can be stored inside the leaf node. The list of polygons aren't needed anymore.
Each triangle has:
poly_index.
vert_indices
delta barycentric coordinate between x steps.
Each triangle is rasterized in rows. Sequential pixels (in uv space) are stored in a single structure.
image position
barycentric coordinate of the first pixel
number of pixels
triangle index inside the leaf node.
During the performed experiments we used a fairly simple rasterization process by
finding the UV bounds of an triangle and calculate the barycentric coordinates per
pixel inside the bounds. Even for complex models and huge images this process is
normally finished within 0.5 second. It could be that we want to change this algorithm
to reduce hickups when nodes are initialized during a stroke.
Reviewed By: brecht
Maniphest Tasks: T96710
Differential Revision: https://developer.blender.org/D14504
* Curves objects now support the geometry nodes modifier.
* It's possible to use the curves object with the Object Info node.
* The spreadsheet shows the curve data.
The main thing holding this back currently is that the drawing code
for the curves object is very incomplete. E.g. it resamples the curves
always in the end, which is not expected for curves in general.
Differential Revision: https://developer.blender.org/D14277
**Relevant to Artists:** This patch adds an option to the Parenting
menu, `Object (Keep Transform Without Inverse)`, and Apply menu, `Parent
Inverse`. The operators preserve the child's world transform without
using the parent inverse matrix. Effectively, we set the child's origin
to the parent. When the child has an identity local transform, then the
child is world-space aligned with its parent (scale excluded).
**Technical:** In both cases, the hidden parent inverse matrix is
generally set to identity (cleared or "not used") as long as the parent
has no shear. If the parent has shear, then this matrix will not be
entirely cleared. It will contain shear to counter the parent's shear.
This is required, otherwise the object's local matrix cannot be properly
decomposed into location, rotation and scale, and thus cannot preserve
the world transform.
If the child's world transform has shear, then its world transform is
not preserved. This is currently not supported for consistency in the
handling of shear during the other parenting ops: Parent (Keep
Transform), Clear [Parent] and Keep Transform. If it should work, then
another patch should add the support for all of them.
Reviewed By: sybren, RiggingDojo
Differential Revision: https://developer.blender.org/D14581
The new created strokes were not setting the right `orig` pointers, so the select operator could not select the strokes and points.
Now, the original pointers are set in the new strokes. To set the values is necessary assign the original pointer from the reference stroke because in modifiers the stroke is evaluated, so we need back two levels: Eval->Eval->Orig
Issue introduced in {rB80859a6cb272}
Only seen on Windows.
The `keyword_parse` lambda function code did not consider `\r` as a
whitespace char, resulting in a wrong parse.
(More investigation needs to be done).
Assume that only one layer matches the id and return instead
of continuing to iterate over attributes after the layers have
been potentially reallocated.
This commit removes all EEVEE specific code from the `gpu_shader_material*.glsl`
files. It defines a clear interface to evaluate the closure nodes leaving
more flexibility to the render engine.
Some of the long standing workaround are fixed:
- bump mapping support is no longer duplicating a lot of node and is instead
compiled into a function call.
- bump rewiring to Normal socket is no longer needed as we now use a global
`g_data.N` for that.
Closure sampling with upstread weight eval is now supported if the engine needs
it.
This also makes all the material GLSL sources use `GPUSource` for better
debugging experience. The `GPUFunction` parsing now happens in `GPUSource`
creation.
The whole `GPUCodegen` now uses the `ShaderCreateInfo` and is object type
agnostic. Is has also been rewritten in C++.
This patch changes a view behavior for EEVEE:
- Mix shader node factor imput is now clamped.
- Tangent Vector displacement behavior is now matching cycles.
- The chosen BSDF used for SSR might change.
- Hair shading may have very small changes on very large hairs when using hair
polygon stripes.
- ShaderToRGB node will remove any SSR and SSS form a shader.
- SSS radius input now is no longer a scaling factor but defines an average
radius. The SSS kernel "shape" (radii) are still defined by the socket default
values.
Appart from the listed changes no other regressions are expected.
2022-04-14 18:47:58 +02:00
1242 changed files with 43608 additions and 22043 deletions
The fast_float library provides fast header-only implementations for the C++ from_chars
functions for `float` and `double` types. These functions convert ASCII strings representing
decimal values (e.g., `1.3e10`) into binary types. We provide exact rounding (including
round to even). In our experience, these `fast_float` functions many times faster than comparable number-parsing functions from existing C++ standard libraries.
Specifically, `fast_float` provides the following two functions with a C++17-like syntax (the library itself only requires C++11):
```C++
from_chars_result from_chars(const char* first, const char* last, float& value, ...);
from_chars_result from_chars(const char* first, const char* last, double& value, ...);
```
The return type (`from_chars_result`) is defined as the struct:
```C++
struct from_chars_result {
const char* ptr;
std::errc ec;
};
```
It parses the character sequence [first,last) for a number. It parses floating-point numbers expecting
a locale-independent format equivalent to the C++17 from_chars function.
The resulting floating-point value is the closest floating-point values (using either float or double),
using the "round to even" convention for values that would otherwise fall right in-between two values.
That is, we provide exact parsing according to the IEEE standard.
Given a successful parse, the pointer (`ptr`) in the returned value is set to point right after the
parsed number, and the `value` referenced is set to the parsed value. In case of error, the returned
`ec` contains a representative error, otherwise the default (`std::errc()`) value is stored.
The implementation does not throw and does not allocate memory (e.g., with `new` or `malloc`).
It will parse infinity and nan values.
Example:
``` C++
#include "fast_float/fast_float.h"
#include <iostream>
int main() {
const std::string input = "3.1416 xyz ";
double result;
auto answer = fast_float::from_chars(input.data(), input.data()+input.size(), result);
std::cout << "parsed the number " << result << std::endl;
return EXIT_SUCCESS;
}
```
Like the C++17 standard, the `fast_float::from_chars` functions take an optional last argument of
the type `fast_float::chars_format`. It is a bitset value: we check whether
`fmt & fast_float::chars_format::fixed` and `fmt & fast_float::chars_format::scientific` are set
to determine whether we allow the fixed point and scientific notation respectively.
The default is `fast_float::chars_format::general` which allows both `fixed` and `scientific`.
The library seeks to follow the C++17 (see [20.19.3](http://eel.is/c++draft/charconv.from.chars).(7.1)) specification.
* The `from_chars` function does not skip leading white-space characters.
* [A leading `+` sign](https://en.cppreference.com/w/cpp/utility/from_chars) is forbidden.
* It is generally impossible to represent a decimal value exactly as binary floating-point number (`float` and `double` types). We seek the nearest value. We round to an even mantissa when we are in-between two binary floating-point numbers.
Furthermore, we have the following restrictions:
* We only support `float` and `double` types at this time.
* We only support the decimal format: we do not support hexadecimal strings.
* For values that are either very large or very small (e.g., `1e9999`), we represent it using the infinity or negative infinity value.
We support Visual Studio, macOS, Linux, freeBSD. We support big and little endian. We support 32-bit and 64-bit systems.
## Using commas as decimal separator
The C++ standard stipulate that `from_chars` has to be locale-independent. In
particular, the decimal separator has to be the period (`.`). However,
some users still want to use the `fast_float` library with in a locale-dependent
manner. Using a separate function called `from_chars_advanced`, we allow the users
to pass a `parse_options` instance which contains a custom decimal separator (e.g.,
std::cout << "parsed the number " << result << std::endl;
return EXIT_SUCCESS;
}
```
## Reference
- Daniel Lemire, [Number Parsing at a Gigabyte per Second](https://arxiv.org/abs/2101.11408), Software: Pratice and Experience 51 (8), 2021.
## Other programming languages
- [There is an R binding](https://github.com/eddelbuettel/rcppfastfloat) called `rcppfastfloat`.
- [There is a Rust port of the fast_float library](https://github.com/aldanor/fast-float-rust/) called `fast-float-rust`.
- [There is a Java port of the fast_float library](https://github.com/wrandelshofer/FastDoubleParser) called `FastDoubleParser`.
- [There is a C# port of the fast_float library](https://github.com/CarlVerret/csFastFloat) called `csFastFloat`.
## Relation With Other Work
The fastfloat algorithm is part of the [LLVM standard libraries](https://github.com/llvm/llvm-project/commit/87c016078ad72c46505461e4ff8bfa04819fe7ba).
The fast_float library provides a performance similar to that of the [fast_double_parser](https://github.com/lemire/fast_double_parser) library but using an updated algorithm reworked from the ground up, and while offering an API more in line with the expectations of C++ programmers. The fast_double_parser library is part of the [Microsoft LightGBM machine-learning framework](https://github.com/microsoft/LightGBM).
## Users
The fast_float library is used by [Apache Arrow](https://github.com/apache/arrow/pull/8494) where it multiplied the number parsing speed by two or three times. It is also used by [Yandex ClickHouse](https://github.com/ClickHouse/ClickHouse) and by [Google Jsonnet](https://github.com/google/jsonnet).
## How fast is it?
It can parse random floating-point numbers at a speed of 1 GB/s on some systems. We find that it is often twice as fast as the best available competitor, and many times faster than many standard-library implementations.
('MULTIPLE_IMPORTANCE_SAMPLING',"Multiple Importance Sampling","Multiple importance sampling is used to combine direct light contributions from next-event estimation and forward path tracing",0),
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