This path merges the Musgrave and Noise Texture nodes into a single
combined Noise Texture node. The reasoning is that both nodes
intrinsically do the same thing, which is the layering of Perlin noise
derivatives to produce fractal noise. So the patch de-duplicates code
and unifies the use of fractal noise for the end use.
Since the Noise node had a Distortion input and a Color output, while
the Musgrave node did not, those are now available to the Musgrave types
as new functionalities.
The Dimension input of the Musgrave node is analogous to the Roughness
input of the Noise node, so both inputs were unified to follow the same
behavior of the Roughness input, which is arguable more intuitive to
control. Similarly, the Detail input was slightly different across both
nodes, since the Noise node evaluated one extra layer of noise. This was
also unified to follow the behavior of the Noise node.
The patch, coincidentally fixes an unreported bug causing repeated
output for certain noise types and another floating precision bug
#112180.
The versioning code implemented with this patch ensures backward
compatibility for both the Musgrave and Noise Texture nodes. When
opening older Blender files in Blender 4.1 the output of both nodes are
guaranteed to always be exactly identical to that of Blender files
created before the nodes were merged in all cases.
Forward compatibility with Blender 4.0 is implemented by #114236.
Forward compatibility with Blender 3.6 LTS is implemented by #115015.
Pull Request: #111187
When using `SCOPED_TIMER` or `SCOPED_TIMER_AVERAGED`
the display would switch from ns to ms
once the value is over 0.1 ms with a precision of 1.
So when the timer value is hovering in the range of 0.1 - 0.2 ms it is
not giving any useful information.
Fix this by adding another digit to the precision of ms.
Pull Request: https://projects.blender.org/blender/blender/pulls/114724
The problem is in the way of identifying "fast" intersections through bounds.
In the existing code, before testing the intersections (to identify
holes) the polys are sorted according to the bounds
(in the order x1 < x2 || y1 < y2).
Then a for loop is used on the order returned by sort.
Each time the bound of a polygon intersects with another, it is joined
and the bound is added.
The problem with this solution is that some bounds may not intersect
with the first, but could intersect one that is joined to the first,
which, as it is cleared, makes the intersection undetected.
The solution is to remove this code with `qsort` and create a
"target_map" that identifies a source polygon and a dest polygon.
Pull Request: https://projects.blender.org/blender/blender/pulls/114600
Cleanup talked about in the previous semi-related PR, #114501
- saacos, saasin, sasqrt have been 100% identical to saacosf,
saasinf, sasqrtf since 2012.
- For all the above, there exist more intuitively named safe_acosf,
safe_asinf, safe_sqrtf that do the same thing, so switch all code to those.
Pull Request: https://projects.blender.org/blender/blender/pulls/114593
Function Module Inclusive Time Exclusive Time
--------------------------------------------------------------------------
mesh_render_data_update_normals blender 297.51 0.00
315 -> 297
acos() usage in all places related to normal calculations shows up in the
profiler. Given that "angle between faces" is only additional heuristic
weight in there (the effect of it at all is very subtle), approximate but
faster version of acos() might be just fine. Especially since some other
parts of Blender (e.g. mikktspace) use approximate acos in a conceptually
the same part.
- Adds safe_acos_approx() to BLI_math_base.hh. Implementation the same
as already exists in Cycles; max error 0.00258 degrees. Between 2x and 4x
faster in my tests.
- Changes all normals related calculations to use the function above instead
of saacos.
Computing normals on a Stanford Lucy (14m verts) mesh:
- Mac (arm64, M1 Max): 247ms -> 229ms
- Win (x64, Ryzen 5950X): 276ms -> 250ms
All places that are about "normal calculation" were changed, including e.g.
Corrective Smooth modifier. Applying that one to the same 14m vertices mesh,
Mac M1 Max: 9.96s -> 9.76s
Tiny changes in several test output expectations w.r.t. normals are
observed, these were reviewed and updated expectations checked in svn.
Pull Request: https://projects.blender.org/blender/blender/pulls/114501
Windows allows people to pin an application to their taskbar, when a
user pins blender, the data we set in
`GHOST_WindowWin32::registerWindowAppUserModelProperties` is used
which includes the path to the `blender-launcher.exe`. Now once that
shortcut is created on the taskbar, this will never be updated, if
people remove blender and install it again to a different path
(happens often when using nightly builds) this leads to the
situation where the shortcut on the taskbar points to a no longer
existing blender installation. Now you may think, just un-pin and
re-pin that should clear that right up! It doesn't, it'll keep using
the outdated path till the end of time and there's no window API call
we can do to update this information. However this shortcut is stored
in the user profile in a sub-foder we can easily query, from there, we
can iterate over all files, look for the one that has our appid in it, and
when we find it, update the path to the blender launcher to the
current installation, bit of a hack, but Microsoft seemingly offers no
other way to deal with this problem.
Pull Request: https://projects.blender.org/blender/blender/pulls/113859
The last good commit was 8474716abb.
After this commits from main were pushed to blender-v4.0-release. These are
being reverted.
Commits a4880576dc from to b26f176d1a that happend afterwards were meant for
4.0, and their contents is preserved.
winstuff.c got converted to .cc recently, and a merge was done of
#113674 from 4.0 which still was using C style code.
Small update in code style was required here.
Some of these devices are not capable of running >=4.0, due to issues
with Mesa's Compute Shaders and their D3D drivers.
This PR marks those GPUs as unsupported, and prints info to stdout.
A driver update will be available for 8cx Gen3 on the 17th October
from here:
https://www.qualcomm.com/products/mobile/snapdragon/pcs-and-tablets/snapdragon-8-series-mobile-compute-platforms/snapdragon-8cx-gen-3-compute-platform#Software
It will take longer via the standard MS Windows Update channels,
as there is certification, testing, etc required, but it is possible
to get the drivers, at least.
This issue applies even when using emulated x64.
If this does not get merged, all WoA devices will break with 4.0,
where older ones will just launch a grey screen and crash, and newer
ones will open, but scenes will not render correctly in Workbench.
These devices work by using Mesa's D3D12 Gallium driver ("GLOn12"),
which is why we have to read the DirectX driver version - the version
reported by OpenGL is the mesa version, which is independent of the
driver (which is the part with the bug).
Pull Request: https://projects.blender.org/blender/blender/pulls/113674
Currently, we always prioritize the words in the last section of a search item
(the words that are highlighted). This generally works well, but the situation
is a bit different for link-drag-search, because there the last part is the socket
name, which is usually less descriptive than the node name.
This patch allows us to use different heuristics to select the prioritized section
per search.
Unfortunately, the link-drag-search is not fully consistent with itself. Sometimes
the last group is a socket name, but sometimes it's also the mode of a node
(`Math > Add`). Therefore, the patch currently simply prioritizes all words in the
same instead of prioritizing only the first part. This seems to work much better
than before even if not perfect in all cases yet.
Pull Request: https://projects.blender.org/blender/blender/pulls/113648
Simply sets the cyclical property selected strokes. Note this does not add extra geometry like the legacy operator.
Note: also adds a key bind 'alt c' to toggle, same as for curves.
Resolves#113671
Pull Request: https://projects.blender.org/blender/blender/pulls/111904
This adds correct object bounds estimation.
This works by creating an occupancy texture where one
bit represents one froxel. A geometry pre-pass fill this
occupancy texture and doesn't do any shading. Each bit
set to 0 will not be considered occupied by the object
volume and will discard the material compute shader for
this froxel.
There is 2 method of computing the occupancy map:
- Atomic XOR: For each fragment we compute the amount of
froxels **center** in-front of it. We then convert that
into occupancy bitmask that we apply to the occupancy
texture using `imageAtomicXor`. This is straight forward
and works well for any manifold geometry.
- Hit List: For each fragment we write the fragment depth
in a list (contained in one array texture). This list
is then processed by a fullscreen pass (see
`eevee_occupancy_convert_frag.glsl`) that sorts and
converts all the hits to the occupancy bits. This
emulate Cycles behavior by considering only back-face
hits as exit events and front-face hits as entry events.
The result stores it to the occupancy texture using
bit-wise `OR` operation to compose it with other non-hit
list objects. This also decouple the hit-list evaluation
complexity from the material evaluation shader.
## Limitations
### Fast
- Non-manifolds geometry objects are rendered incorrectly.
- Non-manifolds geometry objects will affect other objects
in front of them.
### Accurate
- Limited to 16 hits per layer for now.
- Non-manifolds geometry objects will affect other objects
in front of them.
Pull Request: https://projects.blender.org/blender/blender/pulls/113731
Their return value was only used in one place.
Change it to comparison with a stored name, and make the functions
to return void instead.
Removing the return boolean makes it possible to change underlying
functions to work with std::string and return unique name by value.
Pull Request: https://projects.blender.org/blender/blender/pulls/113934
Avoid the need to iterate over every curve, and only iterate over the
cyclic attribute if it exists. This removes the check that avoided
creating cyclic segments for curves with only two points. If that
was necessary, some of the complexity would return, but the
new `array_utils` function wouldn't be necessary.
Pull Request: https://projects.blender.org/blender/blender/pulls/113814
For node search that means that shorter matching node names
are moved further to the top, even if the entire search result is longer
because it is in a deeper menu.
This also more closely resembles how the search worked in Blender 3.6
where the menu path was not included in the search.
Set the "I/O error" if the result from read is larger than the requested
size, while unlikely - set the error so an error return always sets the
`errno`.
