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For some compiler and linker configurations, linking would fail as the
wayland libs were linked at a high level and not at the actual code
where they were needed.
After talking to Campbell, we decided to clean up this part and now
only link both the X11 and Wayland libs where they are used.
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Systems without `libwayland-egl.so` (Fedora 37 beta) failed to start,
as the name `libwayland-egl.so.0` wasn't correct.
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Previously only failure to dynamically load libdecor would report a
warning. Now report failure to load all Wayland libraries.
This was done because Wayland libraries (besides libdecor) are likely to
be installed on systems running Wayland. However it makes it difficult
to troubleshoot failure to load Wayland on systems with libdecor.
Only silence Wayland dynamic loading warnings when Wayland isn't running.
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The issue here was that PathTraceWork was set up before checking if
any error occurred, and it didn't account for the dummy device so
it called a non-implemented function.
This fix therefore avoids creating PathTraceWork for dummy devices
and checks for device creation errors earlier in the process.
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JIT compilation of oneAPI kernels now happens during load stage
and proper message gets shown in the GUI during compilation.
Also, this implementation skips kernels that aren't needed for
the used scene, reducing overall (re)compilation time.
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X11 is used as a fallback when libdecor isn't found on the users system.
Now print a warning when Blender falls back to X11 and a missing
libdecor is the only reason wayland could not be used.
Only print this warning when using Wayland so this warning doesn't show
on X11 systems which have Wayland libraries installed.
Addresses T101715.
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Show the windowing environment on non MS-Windows/Apple systems,
since X11/WAYLAND are selected startup there was no convenient way
for users to know which back-end was being used.
Include the windowing environment in the About splash & system-info.txt
since it will be useful for handling bug reports.
This commit adds a private API call not intended for general use
as I would like to be able to remove this later and it's only needed
in the specific case of testing if Blender is using WAYLAND or X11
(which maybe be used via XWayland).
Python scripts can already inspect the system to check which windowing
environment used, the API call is mainly useful for troubleshooting.
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OSL (like Cycles) has no internal boolean type, instead an integer
input can be flagged to be shown as a boolean in the UI.
Cycles reacts to this by creating a boolean socket on the Blender
side, but as a result incorrectly called the boolean overload of the
set function even though the internal type is an integer.
There's another unrelated crash in the GPU viewport shader code that
appears to apply to every OSL node that outputs a shader, and the file
in T101702 triggers both, so this is only a partial fix for the report.
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The attribute node already allows accessing attributes associated
with objects and meshes, which allows changing the behavior of the
same material between different objects or instances. The same idea
can be extended to an even more global level of layers and scenes.
Currently view layers provide an option to replace all materials
with a different one. However, since the same material will be applied
to all objects in the layer, varying the behavior between layers while
preserving distinct materials requires duplicating objects.
Providing access to properties of layers and scenes via the attribute
node enables making materials with built-in switches or settings that
can be controlled globally at the view layer level. This is probably
most useful for complex NPR shading and compositing. Like with objects,
the node can also access built-in scene properties, like render resolution
or FOV of the active camera. Lookup is also attempted in World, similar
to how the Object mode checks the Mesh datablock.
In Cycles this mode is implemented by replacing the attribute node with
the attribute value during sync, allowing constant folding to take the
values into account. This means however that materials that use this
feature have to be re-synced upon any changes to scene, world or camera.
The Eevee version uses a new uniform buffer containing a sorted array
mapping name hashes to values, with binary search lookup. The array
is limited to 512 entries, which is effectively limitless even
considering it is shared by all materials in the scene; it is also
just 16KB of memory so no point trying to optimize further.
The buffer has to be rebuilt when new attributes are detected in a
material, so the draw engine keeps a table of recently seen attribute
names to minimize the chance of extra rebuilds mid-draw.
Differential Revision: https://developer.blender.org/D15941
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Contributed by Alaska.
Differential Revision: https://developer.blender.org/D16166
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Flags were not properly passed to the
compiler.
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It fixes SYCL runtime issues in Debug builds that were due to mixing
Release and Debug MSVC runtimes.
This commit also removes specific handling of dpcpp compiler executable
to simplify the CMake implementation. Using it like clang++ works and
clang++ executable is also available from Intel oneAPI DPC++ compiler in
case it doesn't.
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This is a minimal set of changes, allowing a lot of cleanup that can
happen afterward as it allows sycl method and objects to be used outside
of kernel.cpp.
Reviewed By: brecht, sergey
Differential Revision: https://developer.blender.org/D15397
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Also use doxy syntax for some comments.
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GNOME (mutter) intentionally doesn't follow the Wayland spec for the
keyboard_enter events (held keys are always an empty array).
This means we can't know which keys are held on window activation,
making the result of getModifierKeys invalid (in that we don't know
which modifiers are held).
Detect this situation and suppress warnings as the issue has been
reported and it doesn't help for users to see noisy warnings for
a known problem.
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Changing volume parameters during rendering could cause a crash
when guiding was enabled. It was due to an unintialized state paramter
at the beginning of the path tracing process.
In addition guiding is disabled when dealing with almost delta volumes
(i.e., g close to 1.0 or -1.0).
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The code already had a check for meshes with zero triangles, but it
didn't catch the case where all triangles are flagged as degenerate.
A simple way to reproduce this is to take a mesh and scale it to zero.
After checking the code, it turns out that in this case it's supposed
to just set all tangents to zero, so the fix simply is to detect this
case and skip the computation.
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To avoid issues with install_deps. If we more generally switch to using
CMake configs then perhaps this code can be deduplicated again or at
least simplified.
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New thresholds give a few percent improvement in average.
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This change speeds up the compilation at the cost of higher memory usage.
CMake implementation checks the amount of available memory to spawn a
reasonable number of parallel compiler jobs.
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Rename BKE_appdir_folder_id_version to
BKE_appdir_resource_path_id_with_version because BKE_appdir_folder_id
and BKE_appdir_folder_id_version didn't accept compatible arguments.
Also add notes to GHOST_getSystemDir & GHOST_getUserDir that
BKE_appdir_resource_path_id(..) should be used instead (in most cases).
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Previously it would bake viewed from above the surface. The new option can be
useful when the baked result is meant to be viewed from a fixed viewpoint or
with limited camera motion.
Some effort is made to give a continuous reflection on parts of the surface
invisible to the camera, but this is necessarily only a rough approximation.
Differential Revision: https://developer.blender.org/D15921
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We expect this to always happen.
Ref T100891
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Also replace "dm" for evaluated mesh in some comments.
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Currently lookup of Object and Instancer attributes is completely
duplicated between Cycles, Eevee and Eevee Next. This is bad design,
so this patch aims to deduplicate it by introducing a common API
in blenkernel.
In case of Cycles this requires certain hacks, but according to
Brecht it is planned to be rewritten later for more direct access
to internal Blender data anyway.
Differential Revision: https://developer.blender.org/D16117
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Also add missing task ID.
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When verbose level 4 is enabled, Blender prints kernel performance
data for Cycles on GPU backends (except Metal that doesn't use
debug_enqueue_* methods) for groups of kernels.
These changes introduce a new CYCLES_DEBUG_PER_KERNEL_PERFORMANCE
environment variable to allow getting timings for each kernels
separately and not grouped with others. This is done by adding
explicit synchronization after each kernel execution.
Differential Revision: https://developer.blender.org/D15971
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Debug and Release libs are different libs on
Windows and will give linker errors when you
try to mix and match them.
This changes retrieves both libs and fills the
OPENPGL_LIBRARIES variable appropriately resolving
the linker error.
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This patch optimises the Metal inlining policy. It gives a small speedup (2-3% on M1 Max) with no notable compilation slowdown vs what is already in master. Previously noted compilation slowdowns (as reported in T100102) were caused by forcing inlining for `ccl_device`, but we get better rendering perf by relying on compiler heuristics in these cases.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D16081
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An bug with binary archives was fixed in macOS 13.0 which stops some spurious kernel recompilations. In older macOS versions, falling back on the system shader cache will prevent recompilations in most instances (this is the same behaviour as in Blender 3.1.x and 3.2.x).
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D16082
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This adds path guiding features into Cycles by integrating Intel's Open Path
Guiding Library. It can be enabled in the Sampling > Path Guiding panel in the
render properties.
This feature helps reduce noise in scenes where finding a path to light is
difficult for regular path tracing.
The current implementation supports guiding directional sampling decisions on
surfaces, when the material contains a least one diffuse component, and in
volumes with isotropic and anisotropic Henyey-Greenstein phase functions.
On surfaces, the guided sampling decision is proportional to the product of
the incident radiance and the normal-oriented cosine lobe and in volumes it
is proportional to the product of the incident radiance and the phase function.
The incident radiance field of a scene is learned and updated during rendering
after each per-frame rendering iteration/progression.
At the moment, path guiding is only supported by the CPU backend. Support for
GPU backends will be added in future versions of OpenPGL.
Ref T92571
Differential Revision: https://developer.blender.org/D15286
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Simplifies code overall to do it inside the eval function, most of the BSDFs
already compute the dot product.
The refactoring in bsdf_principled_hair_eval() was needed to avoid a HIP
compiler bug. Cause is unclear, just changing the implementation enough
is meant to sidestep it.
Ref T92571, D15286
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* Return roughness and IOR for BSDF sampling
* Add functions to query IOR and label for given BSDF
* Default IOR to 1.0 instead of 0.0 for BSDFs that don't use it
* Ensure pdf >= 0.0 in case of numerical precision issues
Ref T92571, D15286
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When the GHOST back-end Blender was built with isn't supported,
Blender would crash on startup without any useful information.
This could happen when building X11 only, then running on Wayland.
Now show a list of the GHOST back-ends that were attempted and exit
with an error code instead of crashing.
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Match minimum supported versions from the WIKI [0] by raising them to:
- GCC 9.3.1
- CLANG 8.0
- MVCS 2019 (16.9.16 / 1928)
Details:
- Add CMake checks that ensure supported compiler versions early on.
- Previously GCC per-processor version checks served to exclude
`__clang__`, in some cases this has been replaced by explicitly
excluding `__clang__`. This was needed as CLANG treated some of these
flags differently to GCC, causing the build to fail.
- Remove USE_APPLE_OMP_FIX GCC-4.2 OpenMP workaround.
- Remove linking error workaround for old MSVC versions.
[0]: https://wiki.blender.org/wiki/Building_Blender
Reviewed by: brecht, LazyDodo
Ref D16068
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There was an unused argument warning, quiet by using the argument.
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Available on Windows and macOS, where such gestures are supported.
For Windows, disabling this option restores touchpad behavior to
match Blender 3.2.
Ref T97925
Differential Revision: https://developer.blender.org/D16005
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Windows drivers 101.3430 fix an important GUI-related crash and it's
best to prevent users from running into it.
Linux drivers weren't affected but still had relevant gpu binary
compatibility fixes, so it makes sense to keep the min-supported version
aligned across OSes.
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Use function style casts in C++ headers & source.
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This also simplifies using function style casts when moving to C++.
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