This commit makes sure that each attribute name is only added once
when logging geometry values for attribute search.
The `attribute_foreach` function for a single geometry component
deduplicated names, but a much more common situation is to have
more than one component in the instances of a geometry set.
Differential Revision: https://developer.blender.org/D12959
This patch renames the node "String Substring" to "Slice String"
to conform to the "verb first" naming convention.
Default length is also changed to 10 to make it easier for users
to understand what the node does.
Reviewed By: HooglyBoogly
Differential Revision: https://developer.blender.org/D12931
This node takes a geometry set with instances as input and outputs
points located on the origins of the top level of instances in the
geometry set (not nested instances). It also has position and radius
inputs to allow overriding the default, and a selection input to only
generate points for some instances.
The use case for this node is a method to use geometry proximity on
instance origins, but in a more generic way that is flexible and useful
in other situations.
Differential Revision: https://developer.blender.org/D12893
Previously, when the start input was greater than the end input,
the spline was resized to a single point. That is correct, but the
single point wasn't placed properly along the spline. Now, it is
placed according to the "Start" value, as if the trim started, but
couldn't continue because the "End" value was smaller.
This behavior is handled with a separate code path to keep each
simpler and avoid special cases. Any cleanup to reduce duplication
should focus on making each code path shorter separately rather
than merging them.
Also included are some changes to `lookup_control_point_position`
to support cyclic splines, though this single-point method is still
disabled on cyclic splines for consistency.
Because `segment_is_vector` didn't handle the combined cyclic and
single control point case, it returned false, that the "segment" should
have the resolution evaluated point count. To avoid checking the size in
every call, add an assert for the size and check it elsewhere.
These nodes just output a single value of their respective types,
making it possible to control multiple inputs with the same value.
Differential Revision: https://developer.blender.org/D12932
This adds attribute search to the geometry nodes modifier
for the input and output attributes. The "New" search item
is only shown for the output attributes.
Some of the attribute search code is extracted to a new file
in the interface code, to avoid some code duplication.
The UI code required two fixes so that the search would work
for dynamic length strings (IDProperties do not have a fixed size).
Since this does changes to the UI layout of the modifier, I also
addressed T91485 here.
Differential Revisiion: https://developer.blender.org/D12788
This commit makes the bounding box node work on each unique geometry
(including instances) individually instead of making one large bounding
box for everything. This makes the node much faster, and is often the
desired result anyway. For the old behavior, a realize instances node
can be used in front of this node (versioning adds it automatically).
The min and max outputs now only output the values from the realized
geometry.
Differential Revision: https://developer.blender.org/D12951
There were some issues when multiple inputs of the same node
were forced to be computed (e.g. for the spreadsheet), but none
of the node outputs (if existant) were used. Essentially the node
was marked as "finished" too early in this case.
This fix is necessary for the improved viewer node (T92167).
Certain geometry nodes don't work properly on inputs that contain
instances, but don't display any warning that they aren't working.
The nodes now will display a warning that explains the situtation
iff the input contains any instances.
Differential Revision: https://developer.blender.org/D12858
In order to address feedback that the "Stable ID" was not easy enough
to use, remove the "Stable ID" output from the distribution node and
the input from the instance on points node. Instead, the nodes write
or read a builtin named attribute called `id`. In the future we may
add more attributes like `edge_id` and `face_id`.
The downside is that more behavior is invisible, which is les
expected now that most attributes are passed around with node links.
This behavior will have to be explained in the manual.
The random value node's "ID" input that had an implicit index input
is converted to a special implicit input that uses the `id` attribute
if possible, but otherwise defaults to the index. There is no way to
tell in the UI which it uses, except by knowing that rule and checking
in the spreadsheet for the id attribute.
Because it isn't always possible to create stable randomness, this
attribute does not always exist, and it will be possible to remove it
when we have the attribute remove node back, to improve performance.
Differential Revision: https://developer.blender.org/D12903
This commit adds an updated version of the curve to points that
supports fields. Only the position and radius are transferred
by default now, which should improve performance. The other outputs
like tangent and rotation are outputted with anonymous attributes.
I took the opportunity to change a few other small things:
- Name geometry sockets "Curve" and "Points" like other nodes.
- Remove the radius multiple of 0.1, which was confusing.
Thanks to @Johnny Matthews (guitargeek) for an initial patch.
Differential Revision: https://developer.blender.org/D12887
This commit adds a node that can be used to find and replace strings
inside of the input string. One initial use case is to have an easier
way to add line breaks to strings to the string to curves node.
Differential Revision: https://developer.blender.org/D12721
This patch includes an updated version of the raycast node that uses
fields instead of attributes for inputs instead of outputs. This makes
the node's UI much clearer. It should be faster too, since the
evaluation system for fields provides multi-threading.
The source position replaces the input geometry (since this node is
evaluated in the context of a geometry like the other field nodes).
Thanks to @guitargeek for an initial version of this patch.
Differential Revision: https://developer.blender.org/D12638
Even though these nodes do support fields internally, there are no
input string sockets that support fields currently, so removing
the diamond sockets for now helps avoid confusion.
Differential Revision: https://developer.blender.org/D12828
When the 'Separate Children' option is selected, the children of
the selected collection are inserted into the geometry output
sorted alphabetically by name.
One item to note is that the rename function does not trigger a
depsgraph update. This means that the changes are not reflected
in the spreadsheet until another action triggers the update.
Differential Revision: https://developer.blender.org/D12907
The Endpoint Selection node allows for the Selection of an aribitrary
number of endpoints from each spline in a curve. The start and end
inputs are evaluated on the spline domain. The result is outputted
as a boolean field on the point domain.
Differential Revision: https://developer.blender.org/D12846
Previously, some multi-functions were allocated in a resource scope.
This was fine as long as the multi-functions were only needed during
the current evaluation of the node tree. However, now cases arise
that require the multi-functions to be alive after the modifier is finished.
For example, we want to evaluate fields created with geometry nodes
outside of geometry nodes.
To make this work, `std::shared_ptr` has to be used in a few more places.
Realistically, this shouldn't have a noticable impact on performance.
If this does become a bottleneck in the future, we can think about ways
to make this work without using `shared_ptr` for multi-functions that
are only used once.
Since points aren't relevant in function nodes, replace all mentions
of it with "local" to illustrate rotations done in local-space instead.
Differential Revision: https://developer.blender.org/D12881
Replaces the old Subdivision Surface Node.
Changes:
- Removes implicit instance realization, instead the node runs once
per unique instance.
- "Use Creases" becomes a crease field input applied to edges.
The values are clamped between zero and one.
Addresses T91763
Differential Revision: https://developer.blender.org/D12830
The object info node output an instance as a performance optimization.
Before that optimization was (almost) invisible to the user, but now
that we aren't automatically realizing instances, it isn't intuitive
for a single object to become an instance.
I refactored the transform node so its ability to translate/transform
an entire geometry set was more usable from elsewhere and exposed the
function to get a geometry set from an object.
Differential Revision: https://developer.blender.org/D12833
This commit adds an updated version of the old attribute transfer node.
It works like a function node, so it works in the context of a
geometry, with a simple data output.
The "Nearest" mode finds the nearest element of the specified domain on
the target geometry and copies the value directly from the target input.
The "Nearest Face Interpolated" finds the nearest point on anywhere on
the surface of the target mesh and linearly interpolates the value on
the target from the face's corners.
The node also has a new "Index" mode, which can pick data from specific
indices on the target geometry. The implicit default is to do a simple
copy from the target geometry, but any indices could be used. It is also
possible to use a single value for the index to to retrieve a single
value from an attribute at a certain index.
Differential Revision: https://developer.blender.org/D12785
While there may be arguments for different positions of the selection
inputs, it's important to be consistent, and putting them right after
the corresponding geometry works well when there are multiple
geometry inputs. Addresses T91646.
