In order to allow interpolation of integers with a float, add a separate
template parameter for the factor and multiplication types.
Also move some helper constexpr variables to the "base" header
(reversing the dependency to "base" -> "vector").
This also adds a distance function for scalar types, which is
helpful to allow sharing code between vectors and basic types.
Differential Revision: https://developer.blender.org/D14446
This is useful to save time manually averaging many timing results.
The minimum is included because often it can be more stable than an
average, and it can help to expose calls from other contexts with lower
times that would make the average useless.
Differential Revision: https://developer.blender.org/D14417
In a test file from T96282, this commit reduces the runtime of the
delete geometry node from 82 ms to 23 ms, a 3.6x improvement.
Writing to vertex groups in other cases should be faster too.
The largest improvement comes from not writing a new weight
of zero if the vertex is not in the group. This mirrors the behavior
of custom data interpolation in `layerInterp_mdeformvert`.
Other improvements come from using `set_all` for writing
output attributes and implementing that method for vertex groups.
I also implemented `materialize` methods. Though I didn't obverse
an improvement from this, I think it's best to remove virtual method
call overhead where it's simple to do so.
The test file for the delete geometry node needs to be updated.
These methods could be parallelized too, but better to do that later.
Differential Revision: https://developer.blender.org/D14420
New supported features:
* 3D/spherical brush that samples a good position on the curves.
* Falloff.
The custom falloff curve mapping is not yet available in the ui because that
requires some more ui reorganization. This is better done when we have
a better understanding of what settings we need exactly.
Currently, the depth of the 3d brush is only sampled once per stroke, when
first pressing LMB. Sometimes it is expected that the depth of the brush can
change within a single brush. However, implementing that in a good way
is not straight forward and might need additional options. Therefore that
will be handled separately. Some experimentation results are in D14376.
Ref T96445.
Differential Revision: https://developer.blender.org/D14376
This adds a new Add brush for the new curves object type in sculpt mode.
The brush is used to insert new curves (typically hair) on the surface object.
Supported features:
* Add single curve exactly at the cursor position when `Add Amount` is 1.
* Front faces only.
* Independent interpolate shape and interpolate length settings.
* Smooth and flat shading affects curve shape interpolation.
* Spherical and projection brush.
This also adds the `surface_triangle_index` and `surface_triangle_coordinate`
attributes. Those store information about what position on the surface each
added curve is attached to:
* `surface_triangle_index` (`int`): Index of the internal triangle that a curve
is attached to. `-1` when the curve is not attached to the surface.
* `surface_triangle_coordinate` (`float2`): First two numbers of a barycentric
coordinate that reference a specific position within the triangle.
Ref T96444.
Differential Revision: https://developer.blender.org/D14340
Previously, the conversion was done manually for a fixed set of types.
Now, there is a more general utility that can be used in other contexts
(outside of geometry nodes attribute processing) as well.
Correct misspellings in code comments of "vertex" and "vertices".
See D13932 for more details.
Differential Revision: https://developer.blender.org/D13932
Reviewed by Harley Acheson
This adds a prototype for the first brush that can add new curves by
painting on a surface. Note that this can only be used when the curves
object has a surface object set in the properties panel.
The brush can take minimum distance into account. This allows
distributing curves with a somewhat consistent density.
Differential Revision: https://developer.blender.org/D14207
This utility is useful when using C types that own some resource in
a C++ file. It mainly helps in functions that have multiple return
statements, but also simplifies code by moving construction and
destruction closer together.
Differential Revision: https://developer.blender.org/D14215
tbb/enumerable_thread_specific.h drags in windows.h
which will define min/max macro's unless you politely
ask it not to.
it's bit of an eyesore, but it is what it is
The main goal here is to add the boilerplate code to make it possible
to add the actual sculpt tools more easily. Both brush implementations
added by this patch are meant to be prototypes which will be removed
or refined in the coming weeks.
Ref T95773.
Differential Revision: https://developer.blender.org/D14180
Sometimes it is useful to get the index ranges that are in an index mask.
That is because some algorithms can process index ranges more efficiently
than generic index masks.
Extracting ranges from an index mask is relatively efficient, because it is
cheap to check if a span of indices contains a contiguous range.
Fix boundary error in `BLI_str_unescape_ex`. The `dst_maxncpy` parameter
indicates the maximum buffer size, not the maximum number of characters.
As these are strings, the loop has to stop one byte early to allow space
for the trailing zero byte.
Thanks @mano-wii for the patch!
The idea is to keep `is_any_zero` in the `blender::math` namespace,
so instead of trying to be clever, just move it there and expand the
function where it was used in the class.
Finding the greatest and/or smallest element in an array is a common
need. This commit refactors the point cloud bounds code added in
6d7dbdbb44 to a more general header in blenlib.
This will allow reusing the algorithm for curves without duplicating it.
Differential Revision: https://developer.blender.org/D14053
This is meant to complement the `blender::math` functions recently
added by D13791. It's sometimes desired to template an operation to work
on vector types, but also basic types like `float` and `int`. This patch
adds that ability with a new `BLI_math_base.hh` header.
The existing vector math header is changed to use the `vec_base` type
more explicitly, to allow the compiler's generic function overload resolution
to determine which implementation of each math function to use.
This is a relatively large change, but it also makes the file significantly
easier to understand by reducing the use of macros.
Differential Revision: https://developer.blender.org/D14113
This patch reverses the dependency between `BLI_math_vec_types.hh` and
`BLI_math_vector.hh`. Now the higher level `blender::math` functions
depend on the header that defines the types they work with, rather than
the other way around.
The initial goal was to allow defining an `enable_if` in the types header
and using it in the math header. But I also think this operations to types
dependency is more natural anyway.
This required changing the includes some files used from the type
header to the math implementation header. I took that change a bit
further removing the C vector math header from the C++ header;
I think that helps to make the transition between the two systems
clearer.
Differential Revision: https://developer.blender.org/D14112
