I had done some experiments to see what Fast boolean did for material
mapping and thought it just used the same slot in the target as the
slot in the source. The truth is more complicated: if the target material
exists in any slot of the destination, we need to remap to whatever
slot has the matching material. I fixed Exact Boolean to do this.
Since the materials may be in the object, this means that BKE_mesh_boolean
had to get another argument, the remapping arrays.
I will note that the current behavior of Fast, and now Exact, is not ideal.
Ideally, if the source material does not exist in the target, a new material
slot should be created in the target and the source material copied there
(and incrementing the material's reference count). Maybe a future project,
but for now, I want the behavior of Exact to match that of Fast.
Note, this does not allow users to connect the same socket more than once to
a multi-input-socket in the UI. However, the situation could still happen when
using node muting.
A few changes to make this consistent with other modifier panels:
- Title case for UI labels
- Use property split (and therefore decorators)
- Declare sublayout variables after getting modifier info
projectors
Make this clear in property UI descriptions and deactivate aspect &
scale fields if no camera projectors are present.
ref T86268
Maniphest Tasks: T86268
Differential Revision: https://developer.blender.org/D10634
The commit rB6f63417b500d that made exact boolean work on meshes
with holes (like Suzanne) unfortunately dramatically slowed things
down on other non-manifold meshes that don't have holes and didn't
need the per-triangle insideness test.
This adds a hole_tolerant parameter, false by default, that the user
can enable to get good results on non-manifold meshes with holes.
Using false for this parameter speeds up the time from 90 seconds
to 10 seconds on an example with 1.2M triangles.
Instead of returning a raw pointer, `LinearAllocator.construct(...)` now returns
a `destruct_ptr`, which is similar to `unique_ptr`, but does not deallocate
the memory and only calls the destructor instead.
This is a complete rewrite of the derived node tree data structure.
It is a much thinner abstraction about `NodeTreeRef` than before.
This gives the user of the derived node tree more control and allows
for greater introspection capabilities (e.g. before muted nodes were
completely abstracted away; this was convenient, but came with
limitations).
Another nice benefit of the new structure is that it is much cheaper
to build, because it does not inline all nodes and sockets in nested
node groups.
Differential Revision: https://developer.blender.org/D10620
This was reported for remesh and skin modifiers.
These dont preserve UV layers (and probably cannot in a reasonable way),
so instead let the UV Project modifier create a new (equally named) UV
layer (as was suggested by @brecht in T59376).
Maniphest Tasks: T59376
Differential Revision: https://developer.blender.org/D10617
This enables the quick access button [to show the relevant Texture in
the Properties Editor] for textures used in geometry nodes.
This goes in line to what we do for other textures:
- modifier textures have this button
- particle textures have this button
- brush textures will soon have it, too (see D9813)
When outside of the Properties Editor, the button will always show (if a
texture is actually assigned), but will be inactive if no suiting
Properties Editor to show the texture in can be found.
Note this also changes the behavior to not show the button if _no_
texture is assigned (as in: we are still showing the "New" button).
Previously it was always there (e.g. for modifier textures), even if it
would take us to an empty texture tab. (Sure, we could add a texture
there then, but imho it makes more sense to just start showing it once a
texture is already there)
For this to work with geometry nodes, the following chages were done:
- implement foreachTexLink for geonode modifiers
- new buttons_texture_user_node_property_add() that stores prop as well
as node
- also use NODE_ACTIVE_TEXTURE flag in geometry nodetrees
notes:
- this still uses the first suiting (as in: pinning does not interfere)
Properties Editor it finds, this should (maybe?) find the _closest_
Property Editor instead (see related feedback in D9813).
- this will already show the button for brush textures as well
(disabled), but there is another mandatory change in an upcomming commit
to make it work there as well (see D9813)
ref. T85278
Maniphest Tasks: T85278
Differential Revision: https://developer.blender.org/D10293
Geometry nodes were not adding referenced instanced collections as
dependencies to depsgraph.
This would lead to meshes and data not being ready on evaluation in
certain cases.
The Exact modifier code had been written to avoid using BMesh but
in the initial release the modifier still converted all Meshes to
BMeshes, and then after running the boolean code on the BMeshes,
converted the result back to a Mesh.
This change skips that. Most of the work here is in getting the
Custom Data layers right. The approach taken is to merge default
layers from all operand meshes into the final result, and then
use the original verts, edges, polys, and loops to copy or interpolate
the appropriate custom data layers from all operands into the result.
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
Since the derived node tree is already build for the evaluation system,
it's simpler to pass a derived node to the params struct. This will also
allow context lookups in nested node groups for node error messages,
since the derived node has that information readily accessible.
Currently moving or changing an object references in a node modifier's
node group does not trigger re-evaluation. Because there is no collection
relation in the dependency graph, we must add the relation to all objects
in the collection individually.
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
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
There are two issues here. First, like in T81988 there are cases
where the modifier would deform some vertices immediately after
bind. This is caused by wrong assumptions in the code about the
possible relative angles between various vectors, which can cause
negative weights that don't blend correctly to appear.
Specifically, it seems originally the code assumes that the
centroid-point vector in the polygon plane lies somewhere
between the mid-edge vectors. This is however not necessarily
the case for distant vertices, because the polygon is not
guaranteed to be truly planar, so normal projection may be
a bit off. The code has to use signed angles and checks to
support all possible angular arrangements.
The second issue is very thin and long triangles, which tend
to be very spatially unstable in their thin dimension, resulting
in excess deformation. The code was weighting distance using
the distances between the centroid and the mid-edge points, which
in this case end up as nearly opposite vectors of sizable length
and don't correctly represent how thin the triangle actually is.
It is thus better to use centroid-to-line distances, and an
additional even stricter value for the midpoint that will use
only 3 vertices at evaluation time.
Differential Revision: https://developer.blender.org/D10065
The RNA path used for animating the settings passed to the node tree
is incorrect. Currently it's just `settings.property_name`, but it's
the path from the ID, not the modifier, so it should be
`modifiers[modifier_name].settings.property_name`.
However, the "Settings" struct is separated in RNA and DNA, which means
that the callback to get the RNA path does not know about the modifier's
name in order to fill the above path, so some reference to the modifier
in the "Settings" struct would be necessary, which would create a
convoluted layout in the `ModifierData` struct.
Instead, this commit simply removes the "Settings" struct from RNA,
which isn't as elegant from the point of view of the Python API,
but otherwise it's a nice simplification. Note that we don't remove the
"Settings" struct from DNA, because it would break reading old files.
Differential Revision: https://developer.blender.org/D10175
There are a couple of operations that are meant to set the active
modifier that currently don't. The first is a mouse press on the drag
icon on the right of the header, and the second is mouse presses on
modifier sub-panels headers.
This was an oversight in the implementation, especially the second,
because the blank space on the right of a sub-panel header often looks
just like the blank space elsewhere on the modifier's panel that
*does* set the active modifier.
Note that this purposefully doesn't include collapsing and expanding
the modifier as operations that set the active, since regardless of
whether that makes sense, it wasn't in the agreed upon design, which
would ideally not need changing for 2.92.
Differential Revision: https://developer.blender.org/D10155
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
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
