Adds two nodes as "grid" equivalents to the existing volume nodes:
- **Grid to Mesh**
- **Distribute Points in Grid**
The code for the latter is just duplicated for now. In a later step
old node can be replaced by versioning with two new nodes.
Pull Request: https://projects.blender.org/blender/blender/pulls/118830
This simple node finds the values of a volume grid at
positions in the local space used in geometry nodes
evaluation. There are three interpolation modes to
choose how to mix values between neighboring voxels.
For the implementation, first the values are sampled
with the grid's type directly, then implicit type conversions
are used to get the final type. This makes gives us flexibility
in case there aren't exact matches in support between grid
types and Blender types.
Pull Request: https://projects.blender.org/blender/blender/pulls/118397
EEVEE-Next can only store data for a single (global) closure at a time,
which, when combined with ShaderToRGB nodes, requires extra care in the
order that closures are evaluated.
For example:
Here, after `ntree_shader_shader_to_rgba_branch` there will be 2 Diffuse
nodes (the original and a copy for the ShaderToRGB branch).
However, the generated code order will be something like this:
```
Diffuse (original)
Diffuse (copy)
ShaderToRGB // This resets closures
Mix
```
So while the original node is technically "evaluated", the closure data
is reset after ShaderToRGB.
This patch updates the code generation to ensure closure evaluation is
ordered taking ShaderToRGB branches into account, so the generated code
looks like this:
```
Diffuse (copy)
ShaderToRGB // This resets closures
Diffuse (original)
Mix
```
This also fixes ShaderToRGB support for AOVs, removes unused code, and
fixes several bugs that I've found along the way that were harmless for
EEVEE but broke EEVEE Next.
Pull Request: https://projects.blender.org/blender/blender/pulls/117767
This is the initial implementation for the volume grid sockets that has been
discussed during the November 2023 geometry nodes workshop.
It adds initial support for passing volume grids around in sockets. Furthermore,
it adds two new nodes. Both are initially hidden under the "New Volume Nodes"
experimental option until we have a few mode nodes.
* **Get Named Grid**: Gets or extracts a volume grid from a volume geometry
based on the grid's name.
* **Store Named Grid**: Puts a volume grid back into a volume with a name.
`SocketValueVariant` is extended to support grids besides single values and fields.
Next steps:
* Implement grid socket shape and inferencing (currently, they just look like
single values).
* Add implicit conversions between grid types.
* Implement nodes that operate on the grids (#116021).
* Improved spreadsheet and viewer support.
Links:
* https://devtalk.blender.org/t/volumes-in-geometry-nodes-proposal/31917
* https://devtalk.blender.org/t/2023-11-06-geometry-nodes-workshop-notes/32007#volumes-3
Co-authored-by: Jacques Lucke <jacques@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/115270
This refactors `SocketValueVariant` with the following goals in mind:
* Support type erasure so that not all users of `SocketValueVariant` have
to know about all the types sockets can have.
* Move towards supporting "rainbow sockets" which are sockets whoose
type is only known at run-time.
* Reduce complexity when dealing with socket values in general. Previously,
one had to use `SocketValueVariantCPPType` a lot to manage uninitialized
memory. This is better abstracted away now.
One related change that I had to do that I didn't see coming at first was that
I had to refactor `set_default_remaining_outputs` because now the default value
of a `SocketValueVariant` would not contain any value. Previously, it was
initialized the zero-value of the template parameter. Similarly, I had to change
how implicit conversions are created, because comparing the `CPPType` of linked
sockets was not enough anymore to determine if a conversion is necessary.
We could potentially use `SocketValueVariant` for the remaining socket types in the
future as well. Not entirely sure if that helps yet. `SocketValueVariant` can easily be
adapted to make that work though. That would also justify the name
"SocketValueVariant" better.
Pull Request: https://projects.blender.org/blender/blender/pulls/116231
In !112591, nodes got the ability to group sockets into panels. The
labels for these sockets are automatically shortened if they begin
with the same text as their parent labels. For instance, "Transmission
Weight" will be shortened to just "Weight" because it is under the
"Transmission" panel.
While this is a good heuristic for English, it breaks down in
languages which do not have the same word order.
This commit adds a `.short_label()` callback to socket declarations so
that a shortened label can be explicitly declared.
It also adds two regexps to the translation script so that these new
fields can be extracted to the .po translation files. One extracts the
label with a translation context, the other without. Only the one
without context is currently in use.
The current automatic shortening logic is kept and will be used only
if a shortened label is not manually provided.
Fixes#112970: Node socket labels under panels are not shortened when
translated.
Pull Request: https://projects.blender.org/blender/blender/pulls/113070
The goal is to reduce redundancy by abstracting over the different types of node
tree zones. This makes it easier to add new zone types and makes the intend of
code more clear. For example, now it is more obvious what code deals with zones
in general and what does simulation specific things.
Pull Request: https://projects.blender.org/blender/blender/pulls/112531
See #101778
Remove the requirement of restarting Blender to refresh the
extended 3D view menus for node group changes. Also avoid
rebuilding the tree of relevant assets and catalogs on every
redraw, since parsing asset libraries, etc. could become more
expensive than we want. Those two goals combined mean we
have to be more rigorous in how we invalidate the cached
catalog tree.
The first main change required is to clear the tree as asset libraries
are being read, similar to other dynamic asset menus. This is done
with a 3D view header listener rather than a menu listener in this case.
However, that isn't enough, because there is an issue with the asset
system where the "all" library isn't updated when the current file library
changes. The solution is to explicitly rebuild the "all" library's catalogs
when other asset libraries are changed.
The other necessity for dynamic updates is clearing the catalog tree
to be rebuilt when the node group "asset traits" are changed. This is
done with a new notifier type (with the goal of being a bit selective
about when we re-read assets). This _also_ requires running the
"presave" callback that builds asset metadata when updating the
property. Otherwise saving the file and sending the notifier is
necessary, which is too confusing.
Pull Request: https://projects.blender.org/blender/blender/pulls/112166
Part 3/3 of #109135, #110272
Switch to new node group interfaces and deprecate old DNA and API.
This completes support for panels in node drawing and in node group
interface declarations in particular.
The new node group interface DNA and RNA code has been added in parts
1 and 2 (#110885, #110952) but has not be enabled yet. This commit
completes the integration by
* enabling the new RNA API
* using the new API in UI
* read/write new interfaces from blend files
* add versioning for backward compatibility
* add forward-compatible writing code to reconstruct old interfaces
All places accessing node group interface declarations should now be
using the new API. A runtime cache has been added that allows simple
linear access to socket inputs and outputs even when a panel hierarchy
is used.
Old DNA has been deprecated and should only be accessed for versioning
(inputs/outputs renamed to inputs_legacy/outputs_legacy to catch
errors). Versioning code ensures both backward and forward
compatibility of existing files.
The API for old interfaces is removed. The new API is very similar but
is defined on the `ntree.interface` instead of the `ntree` directly.
Breaking change notifications and detailed instructions for migrating
will be added.
A python test has been added for the node group API functions. This
includes new functionality such as creating panels and moving items
between different levels.
This patch does not yet contain panel representations in the modifier
UI. This has been tested in a separate branch and will be added with a
later PR (#108565).
Pull Request: https://projects.blender.org/blender/blender/pulls/111348
The `lib_link` callback cannot always be fully replaced/removed, as in
some case it is also doing some validation checks, or data editing based
on the result of lib_linking internal ID pointers.
The callback has been renamed for that purpose, from `read_lib` to
`read_after_liblink`. It is now called after all ID pointers have been
fully lib-linked for the current ID, but still before the call to
`do_versions_after_linking`.
This change should not have any behavioral effect. Although in theory
the side-effect of this commit (to split lib linking itself, and the
validation/further processing code) into two completely separated steps
could have some effects, in practice none are expected, and tests did
not show any changes in behavior either..
Part of implementing #105134: Removal of readfile's lib_link & expand code.
The `expand` callback is 'trivial' to replace, since it is only iterating
over ID pointers and calling a callback.
The only change in behavior here is that some pointers that were not
processed previously will now be.
In practice this is not expected to have any real effect (usually
the IDs used by these pointers would have been expanded through other
usages anyway). But it may solve a few corner cases, undocumented issues
though.
Part of implementing #105134: Removal of readfile's lib_link & expand code.
Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.
While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.
Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.
Some directories in `./intern/` have also been excluded:
- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.
An "AUTHORS" file has been added, using the chromium projects authors
file as a template.
Design task: #110784
Ref !110783.
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
Using the topology map gives a constant time lookup, since it has a map
of nodes per type. The collada code used the old function, but had been
ifdef'd for four years, so it's removed here.
See: https://projects.blender.org/blender/blender/issues/103343
Changes:
1. Added `BKE_node.hh` file. New file includes old one.
2. Functions moved to new file. Redundant `(void)`, `struct` are removed.
3. All cpp includes replaced from `.h` on `.hh`.
4. Everything in `BKE_node.hh` is on `blender::bke` namespace.
5. All implementation functions moved in namespace.
6. Function names (`BKE_node_*`) changed to `blender::bke::node_*`.
7. `eNodeSizePreset` now is a class, with renamed items.
Pull Request: https://projects.blender.org/blender/blender/pulls/107790
Hans Goudey
Campbell Barton
Iliya Katueshenock
Miguel Pozo
Lukas Tönne
Jacques Lucke
Damien Picard
Hans Goudey
Bastien Montagne
Sergey Sharybin
Chris Blackbourn