This patch ports the GLSL SMAA library to the CPU compositor in order to
unify the anti-aliasing behavior between the CPU and GPU compositor.
Additionally, the SMAA texture generator was removed since it is now
unused.
Previously, we used an external C++ library for SMAA anti-aliasing,
which is itself a port of the GLSL SMAA library. However, the code
structure and results of the library were different, which made it quite
difficult to match results between CPU and GPU, hence the decision to
port the library ourselves.
The port was performed through a complete copy of the library to C++,
retaining the same function and variable names, even if they are
different from Blender's naming conversions. The necessary code changes
were done to make it work in C++, including manually doing swizzling
which changes the code structure a bit.
Even after porting the library, there were still major differences
between CPU and GPU, due to different arithmetic precision. To fix this
some of the bilinear samplers used in branches and selections were
carefully changed to use point samplers to avoid discontinuities around
branches, also resulting in a nice performance improvement. Some slight
differences still exist due to different bilinear interpolation, but
they shall be looked into later once we have a baseline implementation.
The new implementation is slower than the existing implementation, most
likely due to the liberal use of bilinear interpolation, since it is
quite cheap on GPUs and the code even does more work to use bilinear
interpolation to avoid multiple texture fetches, except this causes a
slow down on CPUs. Some of those were alleviated as mentioned in the
previous section, but we can probably look into optimizing it further.
Pull Request: https://projects.blender.org/blender/blender/pulls/119414
This patch unifies the sRGB to Linear color space conversion between the
CPU and GPU compositors. This is because CPU uses an optimized path that
produces values that are very slightly off. To fix this, for the GPU, we
do the conversion CPU side instead of doing it in a shader. Since images
are cached, the performance implications are not significant.
Another added benefit is that we no longer get differences due to the
order of alpha pre-multiplication and sRGB conversion, demonstrated in
#114305. And we no longer require any preprocessing of the images.
This patch adds some new utilities to the Image Buffer module to assign
float, byte, and compressed buffers along with their color spaces. It
also adds an ownership flag to compressed data. Those were added as a
way to facilitate the implementation.
Pull Request: https://projects.blender.org/blender/blender/pulls/118624
`asset_lib` is null when calling undo in active file browser space.
This causes crash in `asset undo poll`. So exit out of the poll function
when active file space is filebrowser.
Pull Request: https://projects.blender.org/blender/blender/pulls/119870
object_index is not found (-1) when all mesh data is deleted hence it
crashes when accessing base from the vector at index -1.
So skip the further execution to prevent crash.
Pull Request: https://projects.blender.org/blender/blender/pulls/119865
This commit fixes the following assert:
mtl_command_buffer.mm:165, submit(), at 'MTLBackend::get()->is_inside_render_boundary()'
It happens when toggling rendered state of viewport on macOS, and is
caused by incorrect order of setting active GPU context to null and
calling GPU_render_end.
This change makes the flow of GPU_render_{beign, end} and GPU context
activation closer to what it is in the draw manager's functions
DRW_render_context_{enable, disable}.
Pull Request: https://projects.blender.org/blender/blender/pulls/119868
Fix the "Merge Vertices" report, replacing "vertice(s)" with either
"vertex" or "vertices". The singular "vertice" is not a word in English,
and thus the regular "append (s)" approach is incorrect.
Pull Request: https://projects.blender.org/blender/blender/pulls/119863
This caused an ASan abort while looking into #101993.
From what I can tell, the issue is that when you click the render button on
the Render Layer node, RENDER_OT_render sets the callback. Then, when you
hit F12 later, it reuses the Render from before, including the callback,
but the corresponding handle has been freed already.
When areas are dragged very small we want the (visual) vertical minimum
to equal header height, and the horizontal minimum to be equal to the
Properties nav area width. This PR just makes these adjust correctly
with changes of resolution scale and line width.
Pull Request: https://projects.blender.org/blender/blender/pulls/119848
Now that all relevant code is C++, the indirection from the C struct
`GPUVertBuf` to the C++ `blender::gpu::VertBuf` class just adds
complexity and necessitates a wrapper API, making more cleanups like
use of RAII or other C++ types more difficult.
This commit replaces the C wrapper structs with direct use of the
vertex and index buffer base classes. In C++ we can choose which parts
of a class are private, so we don't risk exposing too many
implementation details here.
Pull Request: https://projects.blender.org/blender/blender/pulls/119825
Currently we have a cache for all combinations of "strand/strip" and
the four subdivision levels. Recomputing this data should be very fast
and doesn't require re-uploading data from the CPU. Because they are
scene settings, they will be the same for all render engines too, so we
won't have a case where we're constantly requesting different values.
The extra caches just complicate code, so better to remove them. Now
the final evaluated cache remembers the settings it was created with,
and it's cleared if they are changed.
Pull Request: https://projects.blender.org/blender/blender/pulls/119804
The issue is that a draw call in the sequencer does not have any
knowledge of the viewport's wireframe opacity and threshold settings,
defaulting both to 0.
A similar issue #86956 implemented a quick hack to fix grease pencil
shading in VSE, so I opted to do the same here. In the future, a better
solution could be implemented to preserve the entire v3d.overlay.
I should note that I made `wireframe_threshold = 0.5f` to match the
default value given in `versioning_280.cc` but if this works better
as `1.0f` instead let me know.
Pull Request: https://projects.blender.org/blender/blender/pulls/119811
This allows to use unions on the C++ side and safe type
casting on the GPU side.
The type casting functions are statically verified at
compile time in C++.
This PR doesn't change the size of the light struct
but removes the need of packing floats in the `object_mat`.
The matrix will be changed to a `float4x3` in another PR
and will reduce the struct by 16 bytes.
This remove the need for the light parameters macros and
reveals the padding members that could be used for future
features for each type.
After this, all accesses to light type dependent data in
the shaders should be done using:
- `LightLocalData light_local_data_get(LightData light)`
- `LightSpotData light_spot_data_get(LightData light)`
- `LightAreaData light_area_data_get(LightData light)`
- `LightSunData light_sun_data_get(LightData light)`
Note that these functions are simple passthrough for Metal
since it supports `union` (but enforce for error checking
if option is enabled).
The error check on GPU is a bit costly so it is disabled
by default.
Pull Request: https://projects.blender.org/blender/blender/pulls/119713
It is unknown why/how this can happen, but there are some files out there
that have e.g. Objects flagged as embedded data... See e.g. the
`(Anim) Hero p23 for 2.blend` file from our cloud gallery
(https://cloud.blender.org/p/gallery/5b642e25bf419c1042056fc6).
Not much to be done, but add another checking pass at the end of
readfile process to fix these.
This adds a new exprimental option to automatically convert GP legacy
data to GPv3 one.
It supports also linking and appending cases. Conversion also happens
when opening a file linking GP legacy data saved by an older .blendfile.
Pull Request: https://projects.blender.org/blender/blender/pulls/118705
Currently the overlay text, like stats for example, are drawing with
the widget_label font style size but using widget's weight. This is
just because UI_fontstyle_set is not called. Without this call we can
get a jiggling of the overlay text if these two styles differ in
weight. This PR also makes an (unnoticeable) correction to the font id
used in fontstyle_set_ex. uiFontStyle's uifont_id is not always the
same id as regular font ids, but here they are confused.
Pull Request: https://projects.blender.org/blender/blender/pulls/119808
Cached strip images were not invalidated, which caused, that these
images were kept in memory in incorrect colorspace.
Code readability was improved a bit and clarifying comments were added
to avoid confusion about what is the code supposed to do.
Pull Request: https://projects.blender.org/blender/blender/pulls/119475
This happened, because function returned early if `Editing` was nullptr.
However it is needed only for timeline boundbox, which is already initialized
for case where there are no strips.
Pull Request: https://projects.blender.org/blender/blender/pulls/118864
- Avoid unnecessary redundancy in function and variable names
- Use more consistent variable names in some places
- Avoid duplicate null checks and incorrect "ensure" naming
- Use const in a few places
- Pass more specific arguments besides just the curves
- Remove unnecessary namespace specification
This report includes a file that demonstrates a crash when ctrl-
clicking the "dot" icon to add to the objects in edit mode. This is
because the object has a mesh shared with another object that is
already in edit mode. This PR allows editing only one object at a
time between objects that share data.
Pull Request: https://projects.blender.org/blender/blender/pulls/119704
Caused by 1cca960677.
That commit stated that creating the final subdivided attribute didn't
free the "proc" attribute buffer that contains the data from the Curves
control points. However that wasn't the case, given the call to
`GPU_VERTBUF_DISCARD_SAFE` in that function. That caused a crash when
the overlay engine and EEVEE both wanted to access the VBO and it was
discarded the second time. To fix that, only regenerate the
`proc_attributes_buf` when it doesn't already exist.
This matches the "ensure" behavior that already exists for the
`cache.final[subdiv].attributes_buf` buffer, so conceptually it
seems fine.
Pull Request: https://projects.blender.org/blender/blender/pulls/119795
When creating popover with `UI_popover_begin` the popover block
is created just once without a region and since `UI_popover_begin` blocks
are not support refreshing, layout panels may not be compatible
in this kind of popover since open/close state cannot be refreshed either.
Only `UILayout.popover(...)` popovers are supported to have layout panels.
Pull Request: https://projects.blender.org/blender/blender/pulls/119796
