Things like pointers to particle systems, or softbody data being stored
outside of its modifier, make it impossible for internal modifier copy
data code to be self-contained currently. It requires extra processing.
In existing code this was handled in several different places, in
several ways, and alltogether fairly inconsistently. Some cases were
even not properly handled, causing e.g. crashes as in T82945.
This commit addresses those issues by:
* Adding comments about the hackish/unsafe parts `psys` implies when
copying some modifier data (since we need to ensure particle system
copying and remapping of those pointers separately).
* Adding as-best-as-possible handling of those cases to
`BKE_object_copy_modifier` (note that it remains fragile, but is
expected to behave 'good enough' in any practical usecase).
* Remove special handling for specific editor code
(`copy_or_reuse_particle_system`). This should never have been
accepted in ED code area, and is now handled by
`BKE_object_copy_modifier`.
* Factorize copying of the whole modifier stack into new
`BKE_object_modifier_stack_copy`, now used by both `object_copy_data`
and `BKE_object_link_modifiers`.
Note that this implies that `BKE_object_copy_modifier` and
`BKE_object_copy_gpencil_modifier` are now to be used exclusively to
copy single modifiers. Full modifier stack copy should always use
`BKE_object_modifier_stack_copy` instead.
Fix T82945: Crash when dragging modifiers in Outliner.
Maniphest Tasks: T82945
Differential Revision: https://developer.blender.org/D10148
Handle return value of `fread()`, by showing an error message when the
file cannot be read from and stopping further processing. Not only is
error handing a good idea, it also prevents GCC from warning that the
return value of `fread()` should not be ignored.
This is similar to {D9916}.
Reviewed By: campbellbarton
Differential Revision: https://developer.blender.org/D10079
Partially reverts 2250b5cefe.
Removing the user count and fake user count icons was controversial (which was
expected) and there are a few further changes needed, that won't make it in
time for the release, see D9946.
While there is a design to bring back the user count and fake user indicators,
a new design idea was proposed that the UI team wants to follow. This came too
late for the 2.92 release, the new design is targeted at the 2.93 release now.
Meanwhile, UI team decision was to simply revert the design changes.
The new design is being worked on in https://developer.blender.org/T84669.
Note that this commit does not revert some internal changes done in
2250b5cefe. Namely the introduction of `ed_util_ops.c` and data-block
operators in there. These will still be needed in the new design.
This patch allows connecting wires for object and collection socket
types to the "Group Input" node, which exposes them to be adjusted
in the modifier.
Thanks to @angavrilov's recent work in rB8964c02348f6, it is now
possible to edit pointer IDProperties in the interface when they are
drawn with `uiItemPointerR`.
This patch is composed of a few changes:
- Add code to create pointer properties in the modifier settings for
object and collection sockets, and also to draw them in the UI.
- Also search through the modifier's `IDProperty` settings to find IDs
used by the modifier.
- Change the setting's UI layout to support the change.
Differential Revision: https://developer.blender.org/D10056
The `object.collision.use` flag was treated as a redundant marker
of the existence of the modifier, going as far as adding/removing
it when the value was changed, which is not actually very useful.
Removing the modifier loses its position in the stack, and requires
a dependency graph rebuild. It feels it may be a legacy flag?
What would be useful however is the ability to toggle collisions
dynamically without removing the modifier. This patch adjusts the
code to keep the modifier when the flag is disabled, and add it
if it doesn't exist when the flag is enabled. The modifier now
checks the flag at the start and quickly exits after cleaning
up stale data. The redesigned setting is exposed in the UI.
Collisions can't be disabled by simply using the modifier enable
flags because the modifier merely saves a snapshot of the mesh at
a certain point of the modifier stack for other objects to use,
and thus has to be able to clear the stale data.
Differential Revision: https://developer.blender.org/D10064
The nodes were selected in new node groups because they are by default,
but there's no particular reason for them to be selected, and it can
be distracting.
Using malloc to allocate a temporary array for each vertex,
which most commonly contains just 4 elements, is not efficient.
Checking the mode with a switch is also better.
Differential Revision: https://developer.blender.org/D10040
There is no need to first copy weights to a separate array,
or create the data layer if it doesn't exist. The threaded
code can retrieve the weight directly from the layer.
Differential Revision: https://developer.blender.org/D10015
Use the BMesh symmetrize operator instead of using the modifier code.
While we could support shape-keys with the existing code used by the
mirror modifier, we'd need to add code-paths for evaluated mesh & bmesh
conversion to handle shape-keys differently just for this one case,
since we want to avoid copying & processing shape-keys layers for
evaluated meshes in general.
- Remove ternary operators when both values are the same.
- Remove break after return.
- Remove redundant NULL checks for code which handles
those cases immediately beforehand.
These two operators (one for grease pencil, one for other objects)
copy a single modifier from the active object to all selected objects.
The operators are exposed in the dropdown menus in modifier headers.
Note that It's currently possible to drag and drop modifiers between
objects in the outliner, but that only works for dragging to one object
at a time. Modifiers can also be copied with the "Make Links" operator,
but that copies *all* modifiers rather than just one. The placement
and scope of these new operators allow for more useful poll messages
and error messages as well.
Every object type that supports modifiers is supported. Although hook
and collision modifiers aren't supported because of an unexplained
comment in `BKE_object_copy_modifier`, other than that, every modifier
type is supported, including particle systems, nodes modifiers, etc.
The new modifiers are set active, which required two small tweaks to
`object.c` and `particle.c`.
Reviewed By: Hans Goudey (with additional edits)
Differential Revision: https://developer.blender.org/D9537
The previous design is rather old and has a couple of problems:
* Scalability: The current solution of adding little icon buttons next to the
data-block name field doesn't scale well. It only works if there's a small
number of operations. We need to be able to place more items there for better
data-block management. Especially with the introduction of library overrides.
* Discoverability: It's not obvious what some of the icons do. They appear and
disappear, but it's not obvious why some are available at times and others
not.
* Unclear Status: Currently their library status (linked, indirectly linked,
broken link, library override) isn't really clear.
* Unusual behavior: Some of the icon buttons allow Shift or Ctrl clicking to
invoke alternative behaviors. This is not a usual pattern in Blender.
This patch does the following changes:
* Adds a menu to the right of the name button to access all kinds of operations
(create, delete, unlink, user management, library overrides, etc).
* Make good use of the "disabled hint" for tooltips, to explain why buttons are
disabled. The UI team wants to establish this as a good practise.
* Use superimposed icons for duplicate and unlink, rather than extra buttons
(uses less space, looks less distracting and is a nice + consistent design
language).
* Remove fake user and user count button, they are available from the menu now.
* Support tooltips for superimposed icons (committed mouse hover feedback to
master already).
* Slightly increase size of the name button - it was already a bit small
before, and the move from real buttons to superimposed icons reduces usable
space for the name itself.
* More clearly differentiate between duplicate and creating a new data-block.
The latter is only available in the menu.
* Display library status icon on the left (linked, missing library, overridden,
asset)
* Disables "Make Single User" button - in review we weren't sure if there are
good use-cases for it, so better to see if we can remove it.
Note that I do expect some aspects of this design to change still. I think some
changes are problematic, but others disagreed. I will open a feedback thread on
devtalk to see what others think.
Differential Revision: https://developer.blender.org/D8554
Reviewed by: Bastien Montagne
Design discussed and agreed on with the UI team, also see T79959.
This uses the "id" attribute to randomly pick instances from a collection
for each point.
There is one issue. When the collection is updated (e.g. when an object is
added to it), the nodes modifier is not automatically updated. It seems
like we don't have the infrastructure to support this dependency yet.
The same issue exists in the Boolean modifier and with collision collections.
This should be solved separately soonish.
When "Whole Collection" is disabled, one direct child of the input collection
is instanced at each point. A direct child can be an object or a collection.
Currently, all objects are picked approximately equally often. In the future,
we will provide more control over which point gets which instance.
Differential Revision: https://developer.blender.org/D9884
Ref T82372.
Remove DNA headers, using forward declarations where possible.
Also removed duplicate header, header including it's self
and unnecessary inclusion of libc system headers from BKE header.
Sometimes the geometry nodes modifier does support mapping and
sometimes it does not. We have no infrastruture to determine this ahead
of time currently. In order to support common use cases, it makes sense
to add this flag to the modifier.
One such common use case is to use the mesh as surface that other
things are distributed on. Often, the distribution is controlled by vertex
groups. Therefore, it would be helpful if the modifier is evaluated
when the object is in vertex paint mode. This allows the user to see the
distributed objects while painting.
If the nodes modifier transforms the mesh in any way, vertex painting
might not work as expected anymore, because the `deformMatrices`
callback is not implemented. I'm not sure how this can be solved nicely, yet.
Without this, the modifier evaluation code might remove any
vertex groups from the mesh for performance reasons.
We can't say for sure whether the node group will need the vertex
groups, but it is quite likely.
Ref T83357.
Required changes to make it compile with clang tidy:
* Use c++ includes like (e.g. climits instead limits.h).
* Insert type casts when casting from void* to something else.
* Replace NULL with nullptr.
* Insert casts from int to enum.
* Replace designed initializers (not supported in C++ yet).
* Use blender::Vector instead of BLI_array_staticdeclare (does not compile with C++).
* Replace typedef statements.
Ref T83357.
This should be a final piece of the changes for the active modifier
interface. Before, it was necessary to click on the blank space of a
modifier panel to set it active (not the header), this commit allows
clicking on the icon also.
The spacing with the spacing with the expand button would ideally
be a bit larger, but the layout system doesn't offer much flexibility
here.
Since the initial merge of the geometry nodes project, the modifyPointCloud
function already was already modifying a geometry set. The function wasn't
renamed back then, because then the merge would have touched many
more files.
Ref T83357.
Implement improvement from T73139 for merging along edges.
It is now called "Connected" mode, while the default is called "All".
With the recent performance improvement, the Connected Mode is in some
cases only double the speed than the usual merge all strategy but in
other cases it may be even faster. The bottleneck is somewhere further
down the line of merging geometry.
The motivation for this patch came from T80897, because the merging in
complex solidify is making it very slow.
Now merging can be removed from solidify without greater consequences,
as this is just a quicker and more advanced algorithm to do the same
thing that solidify currently does slowly.
Reviewed by: mano-wii, campbellbarton
Ref D8966
Until there is a icon made specially for this, the nodetree icon is up
for grabs. Using it in the nodegroup + modifier + editor helps the users
to make a connection on where to edit those modifiers.
This commit adds functions to set and get the object's active
modifier, which is stored as a flag in the ModifierData struct,
similar to constraints. This will be used to set the context in
the node editor. There are no visible changes in this commit.
Similar to how the node editor context works for materials, this commit
makes the node group displayed in the node editor depend on the active
object and its active modifier. To keep the node group from changing,
just pin the node group in the header.
* Shortcuts performed while there is an active modifier will affect
only that modifier (the exception is the A to expand the modifiers).
* Clicking anywhere on the empty space in a modifier's panel will make it active.
These changes require some refactoring of object modifier code. First
is splitting up the modifier property invoke callback, which now needs
to be able to get the active modifier separately from the hovered
modifier for the different operators.
Second is a change to removing modifiers, where there is now a separate
function to remove a modifier from an object's list, in order to handle
changing the active.
Finally, the panel handler needs a small tweak so that this "click in panel"
event can be handled afterwards.
This is the initial merge from the geometry-nodes branch.
Nodes:
* Attribute Math
* Boolean
* Edge Split
* Float Compare
* Object Info
* Point Distribute
* Point Instance
* Random Attribute
* Random Float
* Subdivision Surface
* Transform
* Triangulate
It includes the initial evaluation of geometry node groups in the Geometry Nodes modifier.
Notes on the Generic attribute access API
The API adds an indirection for attribute access. That has the following benefits:
* Most code does not have to care about how an attribute is stored internally.
This is mainly necessary, because we have to deal with "legacy" attributes
such as vertex weights and attributes that are embedded into other structs
such as vertex positions.
* When reading from an attribute, we generally don't care what domain the
attribute is stored on. So we want to abstract away the interpolation that
that adapts attributes from one domain to another domain (this is not
actually implemented yet).
Other possible improvements for later iterations include:
* Actually implement interpolation between domains.
* Don't use inheritance for the different attribute types. A single class for read
access and one for write access might be enough, because we know all the ways
in which attributes are stored internally. We don't want more different internal
structures in the future. On the contrary, ideally we can consolidate the different
storage formats in the future to reduce the need for this indirection.
* Remove the need for heap allocations when creating attribute accessors.
It includes commits from:
* Dalai Felinto
* Hans Goudey
* Jacques Lucke
* Léo Depoix
The Vertex Weight Edit Modifier already got the Custom Curve, there was no
real reason for the proximity not to have it as well.
With some fixes by Bastien Montagne (@mont29).
Reviewed By: mont29
Differential Revision: https://developer.blender.org/D9594
This is an addendum to previous boolean fix, where the object
transformation was "cleaned". Now the operand one is too.
This fixes the issue shown in the video in T82301 when you move
a column around the XY plane with the top and bottom faces
supposedly coplanar with a cube. The transformation matrix when
you do that has a tiny offset in the z component.
Two problems were fixed. One, the code for dissolving vertices
left a face around if dissolving a vertex would leave less than
three vertices. Instead, the face should be deleted.
Two, with transformations like "rotate 180 degrees", this should
be no problem with exact, but the current transformation matrix
has very small non-zero entries where it shouldn't. Cleaning the
transformation matrix makes it more likely that user expectations
about coplanar faces will be fulfilled.
The overlap with the `Panel` flags that start with "PNL" was quite
confusing because wasn't clear which enum a flag was from. The
new names are a bit longer, but the clarity is worth it.
The code was trying to ignore hidden geometry when doing boolean,
which is correct when used as a tool, but not when a modifier.
Added a "keep_hidden" argument to bmesh_boolean to distinguish the
two cases.
Also fixed a bug when the tool is used with hidden geometry that
is attached to unhidden geometry that is deleted by the operation.
The code was trying to ignore hidden geometry when doing boolean,
which is correct when used as a tool, but not when a modifier.
Added a "keep_hidden" argument to bmesh_boolean to distinguish the
two cases.
Also fixed a bug when the tool is used with hidden geometry that
is attached to unhidden geometry that is deleted by the operation.
