Add `BLI_change_working_dir(path)` to change the current working directory.
This change is required for adding USDZ support to Blender. When exporting to that format, we are required to do a weird change of directory because of a quirk with the USD library's USDZ functionality. If an absolute filepath is passed into the `UsdUtilsCreateNewUsdzPackage` function, the USDZ archive will store that full path.
macOS uses `NSFileManager` through some new Mac-only wrapper functions.
Ref #99807
Pull Request #104525
This reverts commit 19222627c6.
Something went wrong here, seems like this commit merged the main branch
into the release branch, which should never be done.
This reverts commit 68181c2560.
I merged 3.6 into 3.5 by mistake. Basically I had a PR against main,
then changed it in the last minute to be against 3.5 via the
web-interface unaware that I shouldn't do it without updating the
patch.
Original Pull Request: #104889
Note that the node group has its sockets names
translated, while the built-in nodes don't.
So we need to use data_ for the built-in nodes names,
and the sockets of the created node groups.
Pull Request #104889
This better aligns with OSX/Linux warnings.
Although `__pragma(warning(suppress:4100))` is not the same as
`__attribute__((__unused__))` in gcc (which only affects the attribute
instead of the line), it still seems to be better to use it than to
hide the warning entirely.
During hair grooming in curves sculpt mode, it is very useful when hair strands
are prevented from intersecting with the surface mesh. Unfortunately, it also
decreases performance significantly so we don't want it to be turned on all the time.
The surface collision is used by the Comb, Pinch and Puff brushes currently.
It can be turned on or off on a per-geometry basis.
The intersection prevention quality of this patch is not perfect yet. This can
be improved over time using a better solver. Overall, perfect collision detection
at the cost of bad performance is not necessary for interactive sculpting,
because the user can fix small mistakes very quickly. Nevertheless, the quality
can probably still be improved significantly without too big slow-downs depending
on the use case. This can be done separately from this patch.
Pull Request #104469
The ear clipping method used by polyfill_2d only excluded concave ears
which meant ears exactly co-linear edges created zero area triangles
even when convex ears are available.
While polyfill_2d prioritizes performance over *pretty* results,
there is no need to pick degenerate triangles with other candidates
are available. As noted in code-comments, callers that require higher
quality tessellation should use BLI_polyfill_beautify.
Straightforward port. I took the oportunity to remove some C vector
functions (ex: copy_v2_v2).
This makes some changes to DRWView to accomodate the alignement
requirements of the float4x4 type.
If GetFileAttributesW returns an error, only debug assert if the reason
is file not found.
See D17204 for more details.
Differential Revision: https://developer.blender.org/D17204
Reviewed by Ray Molenkamp
Straightforward port. I took the oportunity to remove some C vector
functions (ex: `copy_v2_v2`).
This makes some changes to DRWView to accomodate the alignement
requirements of the float4x4 type.
After Win32 API call GetFileAttributesW, check for
INVALID_FILE_ATTRIBUTES, which is returned on error,
usually if file not found.
See D17176 for more details.
Differential Revision: https://developer.blender.org/D17176
Reviewed by Ray Molenkamp
- Don't call exit() when memory allocation fails, while unlikely
internal failures should not be exiting the application.
- Don't print a message when the directory is empty as it's
unnecessarily noisy.
- Print errors the the stderr & include the reason for opendir failing.
Regression in [0] caused by a change where path joining would
replace a forward slash with a back-slash when joining paths WIN32.
Now the directory is always used as a prefix for the paths returned
by BLI_filelist_dir_contents which resolves the regression.
[0]: 9f6a045e23
The code in questions comes from Shewchuk's triangle code, which
hasn't been updated to fix the out-of-buffer access problem
that ASAN finds in the delaunay unit test. The problem is benign:
the code would exit the loop before using the value fetched from
beyond the end of the buffer, but to make ASAN happy, I put in
a couple extra tests to not fetch values that aren't going to be used.
This adds a new `Interpolate Curves` node. It allows generating new curves
between a set of existing guide curves. This is essential for procedural hair.
Usage:
- One has to provide a set of guide curves and a set of root positions for
the generated curves. New curves are created starting from these root
positions. The N closest guide curves are used for the interpolation.
- An additional up vector can be provided for every guide curve and
root position. This is typically a surface normal or nothing. This allows
generating child curves that are properly oriented based on the
surface orientation.
- Sometimes a point should only be interpolated using a subset of the
guides. This can be achieved using the `Guide Group ID` and
`Point Group ID` inputs. The curve generated at a specific point will
only take the guides with the same id into account. This allows e.g.
for hair parting.
- The `Max Neighbors` input limits how many guide curves are taken
into account for every interpolated curve.
Differential Revision: https://developer.blender.org/D16642
This changes how we access the points that correspond to each curve in a `CurvesGeometry`.
Previously, `CurvesGeometry::points_for_curve(int curve_index) -> IndexRange`
was called for every curve in many loops. Now one has to call
`CurvesGeometry::points_by_curve() -> OffsetIndices` before the
loop and use the returned value inside the loop.
While this is a little bit more verbose in general, it has some benefits:
* Better standardization of how "offset indices" are used. The new data
structure can be used independent of curves.
* Allows for better data oriented design. Generally, we want to retrieve
all the arrays we need for a loop first and then do the processing.
Accessing the old `CurvesGeometry::points_for_curve(...)` did not follow
that design because it hid the underlying offset array.
* Makes it easier to pass the offsets to a function without having to
pass the entire `CurvesGeometry`.
* Can improve performance in theory due to one less memory access
because `this` does not have to be dereferenced every time.
This likely doesn't have a noticable impact in practice.
Differential Revision: https://developer.blender.org/D17025
Caused by 6769acbbba.
Some of the matrix variants are rather obscure from the
semantic: they don't really fully initialize the output:
as in, they only write to an upper-left 3x3 block.
A quick solution to fix the very commonly used constraint.
It feels that it is possible to minimize about of copy
operations.
Improve safety and correctness of matrix multiplication by using
temporary storage if one of the inputs is also the output.
No functional changes.
Differential Revision: https://developer.blender.org/D16876
Reviewed By: Campbell Barton, Sergey Sharybin
This patch implements the matrix types (i.e:float4x4) by making heavy
usage of templating. All matrix functions are now outside of the vector
classes (inside the blender::math namespace) and are not vector size
dependent for the most part.
###Motivations
The goal/motivations of this rewrite are the same as the Vector C++ API (D13791):
- Template everything for making it work with any types and avoid code duplication.
- Use functional style instead of Object Oriented function call to allow a simple compatibility layer with GLSL syntax (see T103026 for more details).
- Allow most convenient constructor syntax and accessors (array subscript `matrix[c][r]`, or component alias `matrix.y.z`).
- Make it cover all features the current C API supports for adoption.
- Keep compilation time and debug performance somehow acceptable.
###Consideration:
- The new `MatView` class can be generated by `my_float.view<NumCol, NumRow, StartCol, StartRow>()` (with the last 2 being optionnal). This one allows modifying parts of the source matrix in place. It isn't pretty and duplicates a lot of code, but it is needed mainly to replace `normalize_m4`. At least I think it is a good starting point that can refined further.
- An exhaustive list of missing `BLI_math_matrix.h` functions from the new API can be found here P3373.
- This adds new Rotation types in order to have a clean API. This will be extended when we port the full Rotation API. The types are made so that they don't allow implicit down-casting to their vector representation.
- Some functions make direct use of the Eigen library, bypassing the Eigen C API defined in `intern/eigen`. Its use is contained inside `math_matrix.cc`. There is conflicting opinion wether we should use it more so I contained its usage to almost the tasks as in the C API for now.
Reviewed By: sergey, JacquesLucke, HooglyBoogly, Severin, brecht
Differential Revision: https://developer.blender.org/D16625
Multiple improvements to UV Cylinder and UV Sphere projection including:
* New option "Pinch" or "Fan" to improve unwrap of faces at the poles.
* Support for "Polar ZY" option on "View On Equator" and "Align To Object"
* Better handling of inputs with round-off error.
* Improved handling of faces touching the unit square border.
* Improved handling of very wide quads spanning the right hand border.
* Improved accuracy near to (0, 0).
* Code cleanup and simplification.
Differential Revision: https://developer.blender.org/D16869
- Add parentheses to suppress an assertion on some compilers.
- It turns out cloth self-collision math is not precisely symmetric,
so sort the triangle index pair to restore behavior exactly identical
to the version before the new traversal.
Follow up to rB0796210c8df32
