Many nodes operate on all the instances that are passed into them. For example,
the Subdivision Surface node subdivides the mesh at the root but also instanced
meshes. This works well for most nodes, but there are a few nodes were the old
`modify_geometry_sets` function was not very well defined and it was tricky to
use correctly.
The fundamental problem was that the behavior is not obvious when a node creates
or modifies instances and how those are integrated with the already existing
instances.
This patch solves this with the following changes:
* Remove the old `GeometrySet::modify_geometry_sets` and related
`*_during_modify` methods.
* Add a new `blender::geometry::foreach_real_geometry` function that is similar
to the old `modify_geometry_sets` but has a more well-defined interface:
* It never passes instances into the callback. So existing instances can't be
modified with it.
* The callback is allowed to create new instances. This will automatically be
merged back with potentially already existing instances. The callback does
not have to worry about accidentally invalidating existing instances like
before.
* A few existing usages used `modify_geometry_sets` to actually modify existing
instances (usually just removing attributes). Those can't use the new
`foreach_real_geometry`, so they just get a custom simple recursive
implementation instead of using a generic function.
Pull Request: https://projects.blender.org/blender/blender/pulls/143898
This was caused by a mismatch in the conditions that enabled GPU
subdivision. The mesh normals domain for meshes with no faces was
reported incorrectly, causing the code to think there are auto-smooth
style split normals when there actually aren't.
Also the GPU subdiv normals extraction had a crash binding a vertex
buffer that doesn't exist when there are no faces. Add an early return
for the wire-only mesh case to avoid that.
Pull Request: https://projects.blender.org/blender/blender/pulls/143961
Generally, node names are expected to be unique within a node tree. However,
`ntree_shader_copy_branch` currently does not enforce this for performance
reasons. This was broken by recent changes in 5b73f798d0 and 9fd877e174 which
allows for passing already unique names and identifiers to the node copy
function.
The main problem here was that the `use_unique` parameter of the `node_copy`
function was not well defined. Now, this function is completely removed in favor
of using `node_copy_with_mapping` directly. This also has a new
`allow_duplicate_names` parameter now which makes the expected behavior more
explicit.
Pull Request: https://projects.blender.org/blender/blender/pulls/143951
For quite a while, for edit mode mesh object evaluation we haven't
put the evaluated edit mesh in the evaluated geometry set. I don't
think the reason for that applies anymore. The code is much simpler
if all the evaluated geometry is a consistent place, so just put it there,
the same way as non-edit-mode evaluation.
Pull Request: https://projects.blender.org/blender/blender/pulls/143896
Function curves::nurbs::calculate_basis_cache() varies the name of the
variable 'last_control_point_index '. Name is also confusing and not
descriptive as it refers to the total number of points including
padded/repeated points for cyclic curves (repeated by wrapping the
index by the size of the array).
Use of 'points_num' generally also refers to the size of the array and
not total number of wrapped points.
Pull Request: https://projects.blender.org/blender/blender/pulls/143921
We generally expect `bNodeTreeRuntime::nodes_by_id` to be valid at all times, so
it also has to have the same order `bNodeTree.nodes`. When freeing a node, the
entire vector set was rebuild currently to ensure that invariant. This leads
O(n^2) behavior when all nodes are freed as is commonly the case with depsgraph
copies etc.
This patch implements an optimization where `nodes_by_id` is not rebuild if only
the last node was removed. In this case, that not can just be popped from
`nodes_by_id` without affecting the order of the other nodes. To use this
optimization, the node tree freeing code now frees nodes in reverse order.
Pull Request: https://projects.blender.org/blender/blender/pulls/143831
This is useful when the src node name is not unique, but the caller can provide
a unique name more efficiently then if the function has to compute the name
automatically.
This removes the "Geometry" part from their name because we want to use them in
other node tree types too (see #141936).
Usually, we don't change idnames because they are the primary identifier of
nodes and is expected to stay the same. Since they are generally not shown to
users (just Python developers), it's also not urgent to change them. However, in
this specific case we have the opportunity to update the idname before the node
becomes an official feature, so it's not as bad to change it.
This patch has full backward compatibility, but no forward compatibility (for
files that used the experimental feature).
Pull Request: https://projects.blender.org/blender/blender/pulls/143823
Since c6c127bfd3, objects for which `OB_TYPE_IS_GEOMETRY` fails (e.g.
Empties) were skipped.
However, empties instancing collections works well with light linking if
they contain geometry so we should be supporting these.
In order to do this use an existing function from preview rendering
(`collection_preview_contains_geometry_recursive`), move that to BKE and
use that from light linking operators.
Pull Request: https://projects.blender.org/blender/blender/pulls/143776
When using link-drag-search to create bundle or closure nodes, the newly created
nodes are already synced automatically. Now this automatic syncing also happens
when an empty node is first linked. If there are any sockets already, the
automatic syncing does not happen as it can be unintentional. In this case the
user can just click the sync icon in the node header to update the sockets.
Pull Request: https://projects.blender.org/blender/blender/pulls/143744
First part of design defined in #140360
Images in PR
This PR does two things:
- Creates new panel in theme preferences called "Common" that
doesn't belong to any editor
- Moves "Preview Range" property in common, and removes it
from animation editors.
Now, there is a single theme property for preview range, rather
than 5 for each animation editor.
Co-authored-by: Pablo Vazquez <pablo@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/140686
The node uses anisotropic sampling (which is currently not supported for the
extension mode), so extension modes are only rendered in the node if any
other interpolation method, but anisotropic is selected.
Pull Request: https://projects.blender.org/blender/blender/pulls/143367
When VFont objects use a custom (non-default) font and reference a
character that is not contained in that font, our intention is to show
placeholder curves that represents "not found". Instead we are
currently showing the ".notdef" glyph if there is one defined inside
the font or blank space if not. This PR fixes that by altering
BLF_character_to_curves so that it returns a boolean success instead of
character advance. This way we can properly distinguish "not found"
from the return of other empty, non-advancing characters.
Pull Request: https://projects.blender.org/blender/blender/pulls/143484
This moves most of the code to deal with syncable nodes (such as
Combine/Separate Bundle) to the nodes module. Over time it might be possible to
decentralize it more.
This also changes the caching mechanism from storing a flag on the node to
storing a map on the node editor runtime data. This simplifies the code quite
significantly and also removes the need to store any of this data in DNA.
The node tree update code now always clears this cache because before it was
missing many cases, e.g. when creating links that would connect a Combine to a
Separate Bundle node.
Pull Request: https://projects.blender.org/blender/blender/pulls/143661
Add an asset shelf to the compositor node editor.
This is part of simplifying the compositing workflow:
https://projects.blender.org/blender/blender/issues/134214.
The reasoning is:
- Assets will help users get started more easily with compositing
- Assets will help keeping users within Blender and use the compositor
instead of doing post processing in a different software.
- The asset shelf is better than the asset browser because it has a
better user interface; it's easily hidable and doesn't take much space
The asset shelf is hidden by default in this PR, since we have no
assets yet.
Previously, a similar implementation was proposed for all node editors,
see https://projects.blender.org/blender/blender/pulls/110589.
We didn't move forward with this PR for the following reasons:
- For geometry nodes, no concrete use case was known/proposed
- The PR didn't intend to actually show the asset shelf, only
implement the possibility that it can be shown in node editors
Known Issues:
- Can't hide the asset shelf if region overlap is off: #129737
Pull Request: https://projects.blender.org/blender/blender/pulls/138983
This is a continuation of #140705. It changes more menu node options to be input
sockets. It also changes the order of the input sockets in a few cases to make
the node look a bit better.
Forward and backward compatibility is preserved.
Pull Request: https://projects.blender.org/blender/blender/pulls/142220
This code was not meant to be changed to system ID properties, it was
explicitly looking for custom properties before resolving the RNA path.
There are tests for this functionality, but because the versioning copies
the ID properties to the system ID Properties, it worked for existing
properties but not newly created ones.
Pull Request: https://projects.blender.org/blender/blender/pulls/143574
If the scene is currently set to a Video media type and the user uses
the Save Image As operator, the Media Type in the operator will be
empty. That's because the image saving format is initialized based on
the scene format, but image saving does not support videos, so the enum
is invalid in that context.
This issue already existed before the introduction of media types, but
it happened for the file format field directly.
To fix this, we default to an image type if the scene is set to a video.
Pull Request: https://projects.blender.org/blender/blender/pulls/143549
This PR changes the uses of `PBONE_SELECTED` and all the
places where it *should* have been used
with a new function `bone_is_selected` or `...editbone`
and `...pose_bone` specializations.
No functional changes intended.
Do note that there are still places in the code
where this function should probably be called,
but this PR is very careful not to change any behavior,
even if the current behavior is probably wrong.
In preparation for storing pose bone selection state
on the `bPoseChannel`
Related to #138482
Pull Request: https://projects.blender.org/blender/blender/pulls/139496
`AttributeIter::get()` could potentially use the `accessor` field
which wasn't set for curves or mesh vertex groups. "is_builtin"
can also be explicitly set for this case.
Currently, bundles can only store socket values of Geometry Nodes. However, it
can make sense to store other kinds of data too. Specifically, this patch adds
support for storing arbitrary internal data in a bundle. This is useful when
storing e.g. the physics world when implementing a proper physics solver for
Geometry Nodes (like in #143171).
One can still see that the data exists in Geometry Nodes in the tooltip, but one
can't extract it. Built-in nodes can still read that data.
Storing built-in data in bundles can also be done as an alternative to having a
new "internal data socket" as we talked in a workshop in the past:
https://code.blender.org/2024/11/geometry-nodes-workshop-october-2024/#internal-data-sockets
A bundle still has to be copyable. Internal data is expected to use implicit
sharing. That way copying it just requires increasing the user count of the
data.
Pull Request: https://projects.blender.org/blender/blender/pulls/143472
When transforming a geometry, we often apply the transposed inverse
to normals / custom normal data. However, that matrix can still contain
scale from the original matrix. That scale has to be removed so we can
avoid also scaling the normals.
I used the opportunity to remove the duplication between mesh and curves
processing of the custom normals, and to formalize an optimization to
skip the final normalization of each vector if the transform is such
that it isn't necessary. The new functions don't fit beautifully into
their public headers, but I don't know of a better place for them.
Pull Request: https://projects.blender.org/blender/blender/pulls/142896
Originally reported for ProRes codec, but it affects multiple
other codecs: any format which is read as >= 10bit had the issue.
A regression since 93be12fde0.
The cause of the issue is that movie clip and image data-blocks
did linearization on their side, which was quite hidden to find.
Now the color management is done on the movie reader level.
Additionally, added regression test to catch such issues early
on in the future.
Pull Request: https://projects.blender.org/blender/blender/pulls/143435
* Take into account heat grid in addition to density and fuel, as this is used for
displaying smoke in Blender.
* Lower adaptive domain threshold from 0.02 to 0.002, to fix visual issues with
small smoke density that can still be visible.
Pull Request: https://projects.blender.org/blender/blender/pulls/139940
Part of https://projects.blender.org/blender/blender/pulls/141278
Blend files compatibility:
If a World exists and "Use Nodes" is disabled, we add new nodes to the
existing node tree (or create one if it doesn't) that emulates the
behavior of a world without a node tree. This ensures backward and
forward compatibility.
Python API compatibility:
- `world.use_nodes` was removed from Python API => **Breaking change**
- `world.color` is still being used by Workbench, so it stays there,
although it has no effect anymore when using Cycles or EEVEE.
Python API changes:
Creating a World using `bpy.data.worlds.new()` now creates a World with
an empty (embedded) node tree. This was necessary to enable Python
scripts to add nodes without having to create a node tree (which is
currently not possible, because World node trees are embedded).
Pull Request: https://projects.blender.org/blender/blender/pulls/142342
* Replace G.quiet by CLG_quiet_set/get
* CLOG_INFO_NOCHECK prints are now suppressed when quiet, these were
typically inside a if (!G.quiet) conditional already.
* Change some prints for blend files, color management and rendering to
use CLOG, that were previously using if (!G.quiet) printf().
Pull Request: https://projects.blender.org/blender/blender/pulls/143138
Change default shape of Bubble and Foam, to be able to notice potential
artifacts in the Viewport. The shape for bubble was changed to circle, and
the shape for Foam was changed to cross.
It allows users to notice and fix artifacts in early stages for reports like:
#79995#81011#85533#97063
Pull Request: https://projects.blender.org/blender/blender/pulls/138681
