This change fixes confusion situation when the render output
is an RGBA image: the difference in color was not visible in
the report because alpha channel was all zeros. This is due
to idiff performing per-channel difference.
The solution to this problem is to have separate images for
color and alpha difference, which makes it clear where the
difference actually is coming from.
It's not clear what these are used for as they seem like recent
additions and are set to "NOT-FOUND" even when tiff/freetype are found.
Marking as advanced instead of removing so as not to interfere with
freetype/tiff finding logic.
The warning was introduced with XCode 15 and conflicted with some
assumptions in the CMake. Even without actual cyclic dependency
between targets CMake might decide to pass library multiple times
to the linker, to ensure all its users find symbols from it.
This behavior is expected to be tweaked in the upcoming CMake
version, but until it is released and became widely used by all
Blender macOS developers silence the warning.
Pull Request: https://projects.blender.org/blender/blender/pulls/116718
* Different fix for Mantaflow linker warnings that works with new OpenVDB.
* Use new linker for arm64 as it no longer produces warnings with latest
Xcode. Still use the old one for x86_64 as some warnings remain.
* Fix wrong x86_64 build target in deps builder.
For the upcoming 4.1 libraries.
Ref #113157
Pull Request: https://projects.blender.org/blender/blender/pulls/116708
We disabled SSE for OIIO headers in the days we still supported
32 bit builds, as it was giving build errors there. OIIO handles
this internally now so we no longer need to explicitly disable it,
also we stopped shipping 32 bit quite a while ago
Harfbuzz and FriBiDi are included in our external libraries for all
platforms. This PR adds the glue to make them available as optional
build components (off by default).
Pull Request: https://projects.blender.org/blender/blender/pulls/114947
Previously the cmake code would try to run the LIBDIR specific "findX.cmake" files for both vulkan and shaderc.
However these would pick up system headers and libraries when LIBDIR were not present. This would lead to compilation errors as the system library configurations were not taken into account or queried.
This changes it so that if LIBDIR is not present, the proper pkgconfig files will be used instead.
Pull Request: https://projects.blender.org/blender/blender/pulls/114639
This was only used for accessing cursor themes which only worked
with gnome and wasn't used in official releases.
Use the default theme or the theme defined by XCURSOR_THEME.
Eventually wp_cursor_shape_manager_v1 can be supported which avoids
having to access the theme.
Printing that a library is found every time CMake runs isn't helpful.
Restrict these messages for the first execution so messages are limited
to information developers may need to know such as features being
disabled because of incompatible configurations.
This PR enables vulkan backend as experimental option.
It will only be available in alpha builds on Linux and Windows.
This option is highly experimental and enabled to get some insight
on supported platforms. Don't expect a fully working Blender
yet. Also don't expect it to have usable performance.
**What is known to not work?**
* OCIO textures are not supported on Intel and AMD GPUs. sRGB/Standard is supported
on those platforms.
* AMD Polaris based GPUs on Linux will generate a crash when drawing the 3d cursor as it
doesn't support the needed vertex format. Comment out `DRW_draw_cursor` in `DRW_draw_region_info`.
* The colors in the node editor and sequencer are of as sRGB viewports aren't detected correctly.
* The image / UV editor isn't working as many texture formats haven't been tested yet. Some
tweaks are also needed to do correct depth testing.
* 3D Viewport is known to be flickering. Sometimes workbench doesn't display anything.
* 3D Viewport wireframe will crash as it uses a framebuffer with gaps between color attachments,
which isn't supported yet. (#113141)
* Rotate the view widget is partially drawn due to incompatible depth clipping.
* GPU Selection isn't working. It is expected to be solved when Overlay-Next will become the
default engine. For now disable GPU depth picking in the preferences.
* Cycles/EEVEE are known to not work with Vulkan yet. Cycles requires Vulkan Pixel Buffer.
Cuda <-> Vulkan interop might require a different approach than OpenGL as Vulkan doesn't allow
importing memory from a Cuda context. EEVEE uses features that aren't available yet in the backend
* Workbench is working, except Workbench shadows.
* EEVEE-Next basics are working. Shadows, lights are known to be not working. Materials/Shading
works in simple scenes. Changes are expected in EEVEE-Next that will break Vulkan compatibility
in the near future.
* Systems with multiple GPUs is not expected to work.
* Wayland support is in development and requires some iterations. You can start Blender, but
the protocols are not aligned yet.
* OpenXR hasn't been modified and is expected to fail.
* The backend is very strict when mis-using the GPU module. In debug builds it may crash
on asserts.
* Older drivers/GPUs might not have all the features that we require. The workarounds
for the missing features still need to be implemented.
**A word about performance**
In the project planning we focus first on stability and platform support. The performance of Vulkan is
around 20% of what we want to achieve. The reason is that each command sent to the
GPU is done one at a time. The implementation even waits until we have feedback that the GPU
is idle again.
Geometry is currently stored in System RAM. The GPU will read and cache the data when
accessing geometry. This slows down when using objects with much geometry.
Some performance features like MDI (Multi-Draw-Indirect) hasn't been implemented and
falls back to Single Draw Indirect.
**Why enable it is an experimental option?**
* Ensures that new features are being tested with Vulkan
* Ensure that building with Vulkan is possible on supported platforms
* Get feedback from developers if Vulkan can run on their system or that
there are special cases that we are not aware of. Main development
environment has been Linux/X11 with occasionally testing using Windows.
* Validate Add-ons that use the `gpu` module.
* Possible to enable GLSL validation on the buildbot. (Needs more work).
* Does it compile on all machines or does it require more changes to cmake
config. We expect it to be able to compile without installing the Vulkan SDK.
The Vulkan SDK is a very powerful tool, but only when actually doing GPU
development. Otherwise it is an overhead which slows down other
activities.
**How can the backend be enabled?**
Currently the Vulkan backend can be enabled per Blender session by starting
using the command line argument `--gpu-backend vulkan`. In the future, when
the backend is more mature, we will add a user preference to switch between
OpenGL and Vulkan.
Pull Request: https://projects.blender.org/blender/blender/pulls/113057
CMake decided to link the Debug libs for MaterialX because no specific
RelWithDebInfo configuration was provided, strange default imho but
not difficult to fix.
For Blender 4.0 only, 3.3 and 3.6 keep using the older Xcode version.
The new linker in Xcode 15 gives many warnings due to duplicated
libraries, generated by CMake to resolve circular dependencies. For now
use the old linker to silence these warnings.
Remove legacy flags for libc++, this is the default for a long time and
generates warnings with the new linker.
Reason for upgrade is to take advantage of MetalRT curve support.
Pull Request: https://projects.blender.org/blender/blender/pulls/110243
This changes the default linker options for debug builds to use
fastlinking, this causes the PDB only to be usable on the machine
it is being created on, however since debug builds cannot be
distributed to end users (wont run due to missing debug CRT on
their system) this isn't a problem.
This halves the time required for an incremental link on my system
from 7->3.5 seconds
Previously FREETYPE_LIBRARIES would sometimes contain
BROTLI libraries, since some configurations set them separately,
declare them separately under all configurations to avoid
changes to one platform breaking others.
Also quiets uninitialized variable warning.
Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.
While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.
Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.
Some directories in `./intern/` have also been excluded:
- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.
An "AUTHORS" file has been added, using the chromium projects authors
file as a template.
Design task: #110784
Ref !110783.
When using the `WITH_LINKER_LLD` option, the logic to find the `ld.lld`
binary and actually tell the build system to use it was specific to GCC.
I've copied the Clang-specific logic for Mold and adjusted it to find
LLD.
Not entirely sure why this is necessary, as LLD is actually Clang's
linker. However, without this change, CMake would use regular old slow
`ld` to link.
Pull Request: https://projects.blender.org/blender/blender/pulls/108884
Currently on Windows some dependencies are built with MinGW/GCC 3.x
this commit removes that, in favor of building them with MSVC
via msys2. This will make it easier in the future to offer Win/Arm64
builds of blender.
Notable changes:
- This change drops support for the external libxvid library in favor
of ffmpegs built in support for this format. This has been done with
permission from the VFX module.
Pull Request: https://projects.blender.org/blender/blender/pulls/108983https://projects.blender.org/blender/blender/pulls/105502
This reverts commit 451751380c.
Seems like this broke linux/mac, likely needs to detect of libxvid
is there or not. For now revert until we sort this out.
Currently, Windows some dependencies are built with MinGW/GCC 3.x
this commit removes that, in favor of building them with MSVC
via msys2. This will make it easier in the future to offer Win/Arm64
builds of blender.
Notable changes:
- This change drops support for the external libxvid library in favor
of ffmpegs built in support for this format. This has been done with
permission from the VFX module.
Pull Request: https://projects.blender.org/blender/blender/pulls/105502
Code gen bugs can happen, ad usually they can be worked around
MSVC 17.6 is not one of those cases:
59% tests passed, 120 tests failed out of 296
There really is no other choice than to refuse to build with this
compiler. Alternates that CAN be used are both 17.5 and the current
17.7 preview builds.
Upstream tracking ticket kindly submitted by @deadpin :
https://developercommunity.visualstudio.com/t/vs176/10293729
If a compiler is released in the 17.6.x series that has the bug
fixed, we can contract the range of blacklisted compiler versions
to cover just the affected range, for now however all of 17.6 marked
bad
