Ref: #118534
turns out `in_volume_segment` does need to be checked. If the ray origin
lies on the wrong side of the mesh light, part of the ray could still be
lit by the other side, so the sample should not be considered invalid.
Pull Request: https://projects.blender.org/blender/blender/pulls/119529
In older drivers with an integrated GPU, this may crash. This not only
affects HIP, but also can crash when using Cycles with an NVIDIA or
Intel GPU in combination with an AMD CPU.
Fixes for this are expected to be coming, but there will not be enough
time for user testing, and it is difficult to be certain that the fix
is complete.
So to be careful, this is postponed until it has had more testing.
Pull Request: https://projects.blender.org/blender/blender/pulls/119476
Previously the CUDA context was always destroyed and the module along
with it. Now that this no longer happens, the missing module free became
a memory leak.
Also fix the same issue for HIP, though this is destroying the context
so it's not a problem yet.
Fix part of #119035
Co-authored-by: Brecht Van Lommel <brecht@blender.org>
Global built-ins appear to not work on AMD cards.
Also add a tweak to avoid a performance regression, similar
to what was done before. Disable adaptive subdivision kernel
code if not used.
Pull Request: https://projects.blender.org/blender/blender/pulls/119175
HIP fails to allocate textures, typically when they are too large.
This commit lets the user know what might be causing the issue
rather than providing a confusing internal error message.
Pull Request: https://projects.blender.org/blender/blender/pulls/118239
New windows on GNOME with LIBDECOR windowing would sometimes have an
unusable title-bar with the whole title-bar acting as the edge-resize.
Would happen predictably when opening large windows which the window
manager would resize to fit the display.
The cause of this was Blender receiving a window configure event
without a window size for new windows. This configure event
would be ignored, causing the title bar not to work properly.
This is a regression from [0] which removed logic to calculate the
window size from the arguments passed to GHOST for window creation.
This wasn't correct either as the it could temporarily set the
window size before the requested size configuration was received.
Resolve the problem by queuing configuration requests,
handling them then the requested window size is known.
[0]: 1455315111
area light with zero spread was introduced in bf18032977. Such paths can
only be sampled with NEE, so MIS should not be used.
This fixes the discrepancy when Direct Light Sampling is set to MIS or NEE.
Pull Request: #118584
if emission sampling is not set, we do not use MIS weight when sampling
from the BSDF, but we were still drawing samples from the light,
resulting in double contribution.
Pull Request: https://projects.blender.org/blender/blender/pulls/118534
This `operator new` added in ecc3e78d78
are only called if the alignment is greater than `__STDCPP_DEFAULT_NEW_ALIGNMENT__`.
This is generally 8 or 16 depending on the platform. `MEM_mallocN` does
guarantee 16 byte alignment currently (in fact it's usually not 16 byte aligned
because of `MemHead`). Now `MEM_mallocN_aligned` is used with the default
alignment, even if we don't know that the type does not require it.
An alternative would be to pass the alignment to `MEM_CXX_CLASS_ALLOC_FUNCS`,
but that would be more intrusive.
Pull Request: https://projects.blender.org/blender/blender/pulls/118568
Register the last held key when activating a window
(not only modifiers keys) under Wayland.
This resolves a bug where holding the D-key and clicking on a window
wouldn't activate grease pencil drawing.
Previously, the alignment of structs that use `MEM_CXX_CLASS_ALLOC_FUNCS`
were not taken into account when doing the allocation. This can cause some data
to be mis-aligned and leads to crashes when cpu instructions or code expect the
data to be aligned.
The fix is to provide an overload of `operator new` that accepts the alignment as parameter.
More info: https://en.cppreference.com/w/cpp/language/new (search for `align_val_t`).
Pull Request: https://projects.blender.org/blender/blender/pulls/118526
My misreading of the Microsoft BITMAPV5HEADER specification causes a
shift of three pixels when transferring between applications using this
format. This does not occur when moving within or between Blender
instances. This PR just removes the incorrect 12-byte offset. Note
that many applications prefer PNG transfers over DibV5 so testing this
might be non-obvious.
Pull Request: https://projects.blender.org/blender/blender/pulls/118417
The size of the string in bytes happened to match the the pointer size
on 64bit systems, nevertheless the logic was wrong would would fail on
32bit systems. Also use a character to search the string instead of a
single character string.
