The socket drag operator stored the index of the last picked socket
into RNA in case the mouse cursor leaves the link while dragging.
This id was not unique which is why sometimes a link from an other node
with the same id is picked.
This patch changes the way the last picked link is stored and stores a
pointer to the link directly into bNodeLinkDrag struct instead.
Differential Revision: https://developer.blender.org/D10590
This commit adds a search for existing attributes when you click
on an attribute field. This is useful because otherwise you have
to remember which attributes should be available at each node in
the tree.
The fundamental complication is that this information is not
accessible statically. So the search data is only a cache from
the previous node tree evaluation. The information is added
with `BKE_nodetree_attribute_hint_add`, currently for every
input geometry socket for a single node.
This is only an initial implementation, and later versions will
expose the data type and domain of the attributes.
Differential Revision: https://developer.blender.org/D10519
Currently when you open an RNA collection search button, like a
vertex group selector, the search filter isn't applied until you
start typing, in order to display every option at the start.
Otherwise they wouldn't be visible, since the search filter would
run for the current text.
Currently this check happens in one place, but it relies on the
`changed` value of `uiBut`. This is fine in the interface directory,
but anywhere else it would require exposing `uiBut.changed`, which
is probably too low-level to expose.
The solution is adding an `is_first` argument to the search callbacks,
which is nice for a few reasons:
- They work at a higher level of abstraction, meaning they don't
have to worry about how exactly to tell if this is the first
search.
- It makes it easier to do special behavior when the search menu
is first opened.
- Then, obviously, it makes that state accessible without including
`interface_intern.h`.
Needed for attribute search: T85658
Differential Revision: https://developer.blender.org/D10528
These defines seem to be left over from the initial implementation
of the node editor. In a few places the values were used in button
creation, but the callbacks never checked the value anyway.
Node uiBlocks also had a callback what would never do anything
since the value it checked for was never used.
Changes include using proper and consistent grammar, simplifying
phrasing, using correct terminology, and not including python API
identifiers in tooltips.
Differential Revision: https://developer.blender.org/D9924
This commit tweaks how virtual sockets (unconnected node group input
and output sockets) are drawn to make them more recognizable. The
outline is changed to a gray color, and they get a dark inner color.
Differential Revision: https://developer.blender.org/D10080
This patch adds icons to the right side of nodes when they encounter a
a problem. When hovered, a tooltip displays describing the encountered
while evaluating the node.
Some examples are: attribute doesn't exist, mesh has no faces,
incorrect attribute type, etc. Exposing more messages to the system
will be an ongoing process. Multiple warnings per node are supported.
The system is implemented somewhat generically so that the basic
structure can also be used to store more information from evaluation
for the interface, like a list of available attributes.
Currently the messages are just button tooltips. They could be styled
differently in the future. Another limitation is that every instance of
a node group in a parent node tree will have the same error messages,
the "evaluation context" used to decide when to display the tooltips
must be extended to support node tree paths.
Differential Revision: https://developer.blender.org/D10290
This will allow using C++ data structures to draw node error messages.
This required removing a forward declared enum for grease pencil undo.
Compiles with clang tidy.
When dropping an asset somewhere, it is appended and then a drop operation is
called to actually add it to the scene based on current context. If this drop
operation fails, the appended data-block is now still in the .blend. The user
may not notice and not expect this.
Instead idea is to rollback any changes done by dropping code if the operation
fails, namely removing the appended data-block again.
Adds a new `cancel()` callback which is called if the drop operator returns
`OPERATOR_CANCELLED` to drop-boxes and a generic function to deal with assets
on drop failure.
Also removes the `free_id_on_error` property of the `NODE_OT_add_group`
operator, which was used as ad-hoc solution to get this same behavior.
Adds `NODE_OT_add_group` operator to add a node group from a given name, and
uses that to register a node editor drop-box.
When dropping a node-group asset, the ID will be appended. This is what we do
for other ID assets too.
Should the node group insertion fail (e.g. the group is not compatible with the
current tree, as checked by the poll), the appended data-block is removed.
Differential Revision: https://developer.blender.org/D10405
Reviewed by: Jacques Lucke
This is because the node editor added a "real user" to the node group
that it displays. It was mainly added as a hack to solve issues with custom
tree types (T36024). Since we can store id references in custom properties
now, this "real user" is not really necessary anymore.
Given that we are close to a release, I'll only disable line for geometry nodes,
for which the bug has been reported.
Discussed this solution with Hans Goudey.
It's not necessary to check if the link has to be removed,
if it was removed already.
This regression was caused by rB8f707a72e81833bb835324ddc635b29dfbe87a9f.
This commit makes links connected to multi-input sockets spread verticaly
along the socket. Sockets grow if more links are connected and the node
layout updates accordingly. Links are sorted by their incoming angle
to avoid crossing links. Also, link picking is updated to work with
spread links and bezier links.
Currently the multi-input sockets are used in the join geometry node.
The mutli-input sockets look like a vertical rounded rectangle.
Currently they do not support the other custom socket shapes.
Reviewed By Hans Goudey, with cleanup and additional edits
Differential Revision: https://developer.blender.org/D10181
This commit moves the property layout callbacks for node types to their
implementation files from `drawnode.c`. This was proposed a while ago in
T75724.
**Benefits**
- Fewer files need to be changed when adding a new node.
- Makes it possible to reuse functions from the node's implementation
in the layout code.
- Except for RNA, all of the node "inputs" are in the same place.
- Code gets shorter overall, avoids the large switch statements.
**Downsides**
- Requires including two UI headers.
- Requires adding an editors dependency to the nodes folder.
This commit only changes function nodes and geometry nodes, more can be
moved later.
Differential Revision: https://developer.blender.org/D10352
This node takes a volume and generates a mesh on it's "surface".
The surface is defined by a threshold value.
Currently, the node only works on volumes generated by the
Points to Volume node. This limitation will be resolved soonish.
Ref T84605.
Differential Revision: https://developer.blender.org/D10243
When the pivot axis is not set to auto, the node will try to align the rotation
to vector as best as possible, given the selected rotation axis.
Ref T85211.
Differential Revision: https://developer.blender.org/D10292
This node calculates a distance from each point to the closest position
on a target geometry, similar to the vertex weight proximity modifier.
Mapping the output distance to a different range can be done with an
attribute math node after this node.
A drop-down changes whether to calculate distances from points,
edges, or faces. In points mode, the node also calculates distances
from point cloud points.
Design task and use cases: T84842
Differential Revision: https://developer.blender.org/D10154
Normally sockets only have one input link. This commit adds the back-end
changes needed to use multiple input links per socket.
Multi-input sockets can be defined with a new flag in `bNodeSocketType`.
The changes necessary to make the sockets work in the geometry nodes
evaluator are generalizing input socket values as a vector of values,
and supporting this in the derived node tree structure.
This patch should contain no functional changes. Two upcoming patches
will use this system for the "Join Geometry" node and expose link picking
and updated display in the UI: D10069 and D10181.
Reviewed By: Jacques Lucke, Hans Goudey
Differential Revision: https://developer.blender.org/D10067
Implements a node to get collection objects.
These objects are then passed along as instances in the node tree.
Follow up tasks:
Multiple nodes does not support instancing yet: T85159
Changing collection offset does not trigger a refresh: T85274
Reviewed By: Jacques, Dalai, Hans
Differential Revision: http://developer.blender.org/D10151
In the operation of adding reroute node to the intersection with the
gesture segment, each rerount was added to the middle of two points that
are part of the segment.
Now add the reroute point to the intersection position.
Maniphest Tasks: T85149
Differential Revision: https://developer.blender.org/D10247
This adds the ability to use all the math operations in the regular
utility "Math" node. The code is quite similar to the attribute vector
math node, with the simplification that the result is always a float.
Differential Revision: https://developer.blender.org/D10199
This implements a new geometry node based on T84606.
It is the first node that generates a `VolumeComponent`.
Differential Revision: https://developer.blender.org/D10169
In the CompositorOperation::deinitExecution the viewer could be freed at
the same time it was drawn in the image editor or node editor. There is
a guard for that but wasn't added during the migration of the two
editors to the draw manager.
Passing 4x arguments for the rectangle,
mixed in with round-box radius & color wasn't very readable.
Instead, pass a `rctf` as the first argument to UI box drawing functions.
For assets, the copy callback of the drop-box would append the asset
data-block. Check if the operator's poll succeeds before calling the copy
callback.
Otherwise the data-block is "secretly" appended, which the user doesn't expect
and won't notice without checking the file data in the Outliner.
For masks I had to extend the poll function, it didn't check context
sufficiently.
The normal drag & drop support was already there, just needed minor tweaks to
respect asset importing. The dragged in mask will create a mask node for
compositor node editors.
Part of T82661.
The normal drag & drop support was already there, just needed minor tweaks to
respect asset importing. The dragged in image will create a image/texture node
for the internally known node-tree types (shader, texture and compositing
nodes).
Part of T82661.
This node allows sampling a texture for every vertex based on some
mapping attribute. Typical attribute names are the name of a uv map
(e.g. "UVMap") and "position". However, every attribute that can be
converted to a vector implicitly is supported.
It should be noted that as of right now, uv map attributes can only be
accessed after a Point Distribute node.
Ref T82584.
Differential Revision: https://developer.blender.org/D10121
This commit moves runtime-only variables from the `SpaceNode`
DNA struct to a private struct in `node_intern.h`. Before, it was hard
to tell which data needed to be saved in files, this should make it
more clear.
Node that the `edittree` field is basically a runtime variable, since
it's set from the `treepath` list on read, but moving it would require
some more invasive changes that I don't think are worth it right now.
Also, not all of the moved variables were explicitly cleared on read--
`aspect` is set at the start of a redraw, `cursor` is set in a region
callback, and `recalc` was used as an update flag.
Differential Revision: https://developer.blender.org/D10141
