This patch turns the options of the Color Spill node into inputs.
In the process, the Ratio option was renamed to Limit Strength, the
unspill option was renamed to Spill Strength.
Reference #137223.
Pull Request: https://projects.blender.org/blender/blender/pulls/137848
This patch turns the options of the Chroma Key node into inputs.
In the process, the minimum and maximum angles were renamed to Minimum
and Maximum for consistency with other matte nodes.
Reference #137223.
Pull Request: https://projects.blender.org/blender/blender/pulls/137812
This patch turns the options of the Vector Blur node into inputs.
In the process, the factor input was renamed to Shutter and was remapped
to match the shutter in Cycles/EEVEE.
Reference #137223.
Pull Request: https://projects.blender.org/blender/blender/pulls/137725
This patch turns the options of the Anti-Alias node into inputs.
In the process, the [0, 1] limit of the Contrast Limit input was lifted
to allow normalized arbitrary positive limits.
Reference #137223.
Pull Request: https://projects.blender.org/blender/blender/pulls/137717
This patch turns the options of the Tone Map node into inputs.
In the process, a few changes were made. Input ranges were adjusted to
remove artificial limits. The papers indeed mention those limits, but
they were only mentioned as typical values, not valid ranges.
- The Key option is no longer limited to 1.
- Gamma is no longer limited to a value of 3.
- Intensity is no longer limited to [-8, 8].
- Contrast is no longer limited to [0, 1].
A few renames were done to clarify options and match the reference
papers.
- Offset was renamed to Balance, since it is not really an offset, but
balances between shadows and highlights. This can be looked up in the
paper.
- Correction was renamed to Chromatic Adaptation, since it doesn't
really correct anything.
- Adaptation was renamed to Light Adaptation to distinguish from
Chromatic Adaptation and now default to global tone mapping, since
this is more useful by default.
Reference #137223.
Pull Request: https://projects.blender.org/blender/blender/pulls/137589
Only geometry nodes is allowed to have no active output (the group output node acts as an explicit node tree output). The previous fix only considered geometry nodes and compositor cases, which was not enough.
Pull Request: https://projects.blender.org/blender/blender/pulls/137288
This implements bundles and closures which are described in more detail in this
blog post: https://code.blender.org/2024/11/geometry-nodes-workshop-october-2024/
tl;dr:
* Bundles are containers that allow storing multiple socket values in a single
value. Each value in the bundle is identified by a name. Bundles can be
nested.
* Closures are functions that are created with the Closure Zone and can be
evaluated with the Evaluate Closure node.
To use the patch, the `Bundle and Closure Nodes` experimental feature has to be
enabled. This is necessary, because these features are not fully done yet and
still need iterations to improve the workflow before they can be officially
released. These iterations are easier to do in `main` than in a separate branch
though. That's because this patch is quite large and somewhat prone to merge
conflicts. Also other work we want to do, depends on this.
This adds the following new nodes:
* Combine Bundle: can pack multiple values into one.
* Separate Bundle: extracts values from a bundle.
* Closure Zone: outputs a closure zone for use in the `Evaluate Closure` node.
* Evaluate Closure: evaluates the passed in closure.
Things that will be added soon after this lands:
* Fields in bundles and closures. The way this is done changes with #134811, so
I rather implement this once both are in `main`.
* UI features for keeping sockets in sync (right now there are warnings only).
One bigger issue is the limited support for lazyness. For example, all inputs of
a Combine Bundle node will be evaluated, even if they are not all needed. The
same is true for all captured values of a closure. This is a deeper limitation
that needs to be resolved at some point. This will likely be done after an
initial version of this patch is done.
Pull Request: https://projects.blender.org/blender/blender/pulls/128340
Undefined nodes are currently drawn using a red alert theme color to
make it easier to spot them and replace them. On the other hand, nodes
that are unsupported, that is, nodes whose poll method fail, are not
reported to the user in any way. So this patch also uses the same red
alert color for unsupported nodes.
The node_type_is_undefined function is moved to the draw file since it
seems to be specific to it and not used anywhere else.
Pull Request: https://projects.blender.org/blender/blender/pulls/136451
Newer nodes may not have a fixed `legacy_type`. This was not accounted for
correctly when reading nodes. Such newer nodes are exclusively identified by their idname.
Fortunately, Blender 4.4 was released without any new nodes that don't have
a fixed `legacy_type`. So this does not have to be backported.
Pull Request: https://projects.blender.org/blender/blender/pulls/136431
The main issue of 'type-less' standard C allocations is that there is no check on
allocated type possible.
This is a serious source of annoyance (and crashes) when making some
low-level structs non-trivial, as tracking down all usages of these
structs in higher-level other structs and their allocation is... really
painful.
MEM_[cm]allocN<T> templates on the other hand do check that the
given type is trivial, at build time (static assert), which makes such issue...
trivial to catch.
NOTE: New code should strive to use MEM_new (i.e. allocation and
construction) as much as possible, even for trivial PoD types.
Pull Request: https://projects.blender.org/blender/blender/pulls/136134
This patch adds common nodes that are used in Geometry Nodes and Shader
Nodes to the compositor. The following new nodes were added:
- Vector Math.
- Vector Rotate.
- Vector Mix.
- Value Mix.
- Clamp.
- Float Curve.
- Blackbody.
The follow nodes were replaced by common counterparts:
- Value.
- Color Ramp.
- Mix Color.
- Map Range.
- Math.
- Combine XYZ.
- Separate XYZ.
- Vector Curves.
Some new features were gained in the process:
- Mix Color can now clamp both factor and result.
- Map Range can map different types and interpolations.
- Vector Curves gained a new Factor input.
Some behaviors were changed:
- Map Range previously forcibly clamped values whose magnitude is larger
than the arbitrary value of 10000. This is no longer the case.
Some nodes were removed:
- Map Value. This was Map Range without the maximum 10000 limitation
followed by a Clamp node. Both are now available as nodes.
Some common nodes remain separate:
- Separate/Combine Color. Shader counterpart does not yet support all
color modes, and does not support alpha.
- RGB Curves. Shader variant does not support Film-Like curves or
Black/White balancing.
Texture nodes will also be added soon in a separate patch. Nodes that
were replaced are now deprecated but still exist and will later be
removed in v5.0. Backward compatibility code was introduced to convert
from the deprecated nodes to the new nodes.
Pull Request: https://projects.blender.org/blender/blender/pulls/135300
Implement shortcuts for viewer nodes. Viewer nodes are now activated using the operator `bpy.ops.node.activate_viewer()` instead of activating the viewer by setting the node to active.
This also unifies the behavior with viewer shortcuts in the compositor (see attachment in the original PR).
Pull Request: https://projects.blender.org/blender/blender/pulls/134555
The general idea is to keep the 'old', C-style MEM_callocN signature, and slowly
replace most of its usages with the new, C++-style type-safer template version.
* `MEM_cnew<T>` allocation version is renamed to `MEM_callocN<T>`.
* `MEM_cnew_array<T>` allocation version is renamed to `MEM_calloc_arrayN<T>`.
* `MEM_cnew<T>` duplicate version is renamed to `MEM_dupallocN<T>`.
Similar templates type-safe version of `MEM_mallocN` will be added soon
as well.
Following discussions in !134452.
NOTE: For now static type checking in `MEM_callocN` and related are slightly
different for Windows MSVC. This compiler seems to consider structs using the
`DNA_DEFINE_CXX_METHODS` macro as non-trivial (likely because their default
copy constructors are deleted). So using checks on trivially
constructible/destructible instead on this compiler/system.
Pull Request: https://projects.blender.org/blender/blender/pulls/134771
Replace `bNodeInstanceHash` with a `Map`. Move it to the node tree
runtime data. Simplify some code by removing the tag from the hash
value and collecting unused previews directly. Then just remove a
bunch of code that's now unused.
Note that texture node previews haven't been working for a while
anyway, and the experimental shader node previews seem to use
a different system (this one is a remnant of Blender Internal).
Pull Request: https://projects.blender.org/blender/blender/pulls/135310
Restriction of the nodes api to clearly define never-null function arguments.
Side effects: some assertions and null-check (with early return) were removed.
On the caller side is ensured to never derefer null to pass argument (mainly in RNA).
In addition, one pointer argument now actually a return type.
By-reference return types instead of pointers going to be separate kind of
change since also imply of cleaning up variables created from reference.
Also good future improvement would be to mark a copy-constructor as
explicit for DNA node types.
Pull Request: https://projects.blender.org/blender/blender/pulls/134627
Currently, tree, node and socket types are always freed immediately when the
Python code unregisters them. This is problematic, because there may still be
references to those type pointers in evaluated data owned by potentially various
depsgraphs. It's not possible to change data in these depsgraphs, because they
may be independent from the original data and might be worked on by a separate
thread. So when the type pointers are freed directly, there will be a lot of
dangling pointers in evaluated copies. Since those are used to free the nodes,
there will be a crash when the depsgraph updates. In practice, this does not
happen that often, because typically custom node tree addons are not disabled
while in use. They still used to crash often, but only when Blender exits and
unregisters all types.
The solution is to just keep the typeinfo pointers alive and free them all at
the very end. This obviously has the downside that the list of pointers we need
to keep track of can grow endlessly, however in practice that doesn't really
happen under any normal circumstances.
I'm still getting some other crashes when enabling/disabling Sverchok while
testing, but not entirely reliably and also without this patch (the crash there
happens in RNA code). So some additional work will probably be needed later to
make this work properly in all cases.
Pull Request: https://projects.blender.org/blender/blender/pulls/134360
Currently UI code always has to use char pointers when interacting with
the translation system. This makes benefiting from the use C++ strings
and StringRef more difficult. That means we're leaving some type safety
and performance on the table. This PR adds StringRef overloads to the
translation API functions and removes the few calls to `.c_str()` that
are now unnecessary.
Pull Request: https://projects.blender.org/blender/blender/pulls/133887
Artists often want to quickly switch back and forth between two or more nodes while compositing.
This patch implements two operators `NODE_OT_viewer_shortcut_set` and `NODE_OT_viewer_shortcut_get` that allow users to map a viewer node to a shortcut. For example, pressing `cltr+1` while a node is selected, assigns that node to the shortcut `1`, creates a viewer node if it has none attached and sets that viewer node to active. Pressing `1` will set the active node with shortcut `1` to active.
Shortcuts are saved in DNA to preserve them after saving/loading blend files.
Limitations:
- Only compositor node tree is supported, because shading editor has no viewer node and geometry nodes viewer works differently.
Pull Request: https://projects.blender.org/blender/blender/pulls/123641
