Ever since Blender 4.0 when the Principled BSDF was updated to
generally match the OpenPBR standard, it hadn't supported negative
specular ansiostropy.
Update the Principled BSDF tooltip to match this change.
Pull Request: https://projects.blender.org/blender/blender/pulls/126644
Use snake style naming for all the kernel nodes functions.
Omit kernel prefix in the names since of the using namespace.
Use full forms of the terms
('iter' -> 'iterator', 'ntree' -> 'node_tree', 'rem' -> 'remove', ...).
Pull Request: https://projects.blender.org/blender/blender/pulls/126416
This patch supports the viewer node in the new CPU compositor. To do
that, the context viewer output mechanism was refactored to allow CPU
storage by utilizing the result class as opposed to a GPU texture.
Just turn on the option for geometry nodes where attributes are
generally expected to be used. We could expose this and other
options at some point too but that requires a bit more thought.
This patch adds support for CPU side buffers for the result class. A new
storage type member was added to identify the type of buffer storage,
and allocation will either allocate a GPU texture or a CPU buffer based
on the context's GPU usage.
This patch allows the result to be allocated using new textures as
opposed to using pooled texture. This is useful to allow the result
class to be used for persistent data like cached resources which can't
be pooled since it spans multiple evaluations.
This adds the ability to customize the default width of a group node that's
created for a node group. This feature works towards the goal of unifying the
features available to built-in nodes and node groups. We often customize the
width of built-in nodes from them to looks slightly better (e.g. to avoid
cut-off labels).
Pull Request: https://projects.blender.org/blender/blender/pulls/126054
When a curve instance did not have a "opacity" attribute, the default would be 0.
This meant that when creating Grease Pencil layers from scratch, the user
would need to manually write a "opacity" attribute.
Now the default value is 1, so that this step is no longer necessary.
Previously, values for `ID.flag` and `ID.tag` used the prefixes `LIB_` and
`LIB_TAG` respectively. This was somewhat confusing because it's not really
related to libraries in general. This patch changes the prefix to `ID_FLAG_` and
`ID_TAG_`. This makes it more obvious what they correspond to, simplifying code.
Pull Request: https://projects.blender.org/blender/blender/pulls/125811
Temporary results are essentially results with a default reference count
of 1, so we default to 1 for all results and set the initial reference
count differently as need.
The specialized code for converting grease pencil layer attributes to
instance attributes was accessing the instance component without check.
This _should_ work because the component is explicitly created, but
still fails for empty grease pencil data, because the
`get_component_ptr` function checks if the component is "empty" as well
(zero instances).
Pull Request: https://projects.blender.org/blender/blender/pulls/125887
The File Output node doesn't provide an option to save byte formats like
PNG in a space that is not sRGB. This is problematic for data images
like normal maps, which need to be saved as non-color.
This patch adds a Color Space option to the File Output node to allows
users to override the assumed color space. This also adds a new global
Save As Render option that is used if Use Node Format is enabled.
Pull Request: https://projects.blender.org/blender/blender/pulls/124238
Bake nodes are not supported in a repeat zone. They used to just output
default values when used in a repeat zone, but now they just pass-through
the inputs like an unbaked bake node would.
This makes the behavior more like one would expect when using the same
node group in and outside of a repeat zone that happens to have a bake
node inside (which is not even used).
The newly added viewport compositor was missing a try-catch guard around
the OCIO `getProcessor` call. All prior call sites were protected except
this one. Unhandled exceptions can occur if the user tries to use a
colorspace config that is not present in their OCIO configuration.
The surrounding code paths need some work in order to not crash at a
later point, which would also impact builds with no OCIO support at all.
In the case of no OCIO support at all, a warning label is placed on the
node as well.
Pull Request: https://projects.blender.org/blender/blender/pulls/125526
This shouldn't make any difference right now, because the main inputs
and outputs of a group always come first. But it's better to not rely on that
here if it can be avoided.
Match function and declaration names, picking names based on
consistency with related code & clarity.
Also changes for old conventions, missed in previous cleanups:
- name -> filepath
- tname -> newname
- maxlen -> maxncpy
This patch adds support for multi-pass compositing for EEVEE. This is
done by copying the passes used by the compositor node tree to the DRW
view data, which can then be accessed by the viewport compositor.
The viewport compositor will fallback to the viewport texture or an
invalid output of the passes were not initialized, this is currently the
case for any render engine that is not EEVEE.
A future optimization that we can do is eliminate the film pass copy
shaders and only copy the data that EEVEE rendered, which can be a
subset of the viewport for border rendering. This is not done at the
moment because not all engines support passes at the moment, so the
compositor expects full viewport passes.
Depends on: #123685, #123817, #123815.
Pull Request: https://projects.blender.org/blender/blender/pulls/123378
This adds two new nodes:
* `Grease Pencil to Curves`: Converts each grease pencil layer into an instance
that contains curves.
* `Curves to Grease Pencil`: Converts top-level curve instances into grease
pencil layers.
This opens up many new opportunities:
* Use grease pencil as input to other procedural systems that don't necessarily
output grease pencil.
* Generate grease pencil from scratch using geometry nodes.
* Temporarily convert grease pencil data to curves to use more powerful features
for curves processing.
Some data on layers are not attributes yet unfortunately, so there is some
special case handling for the `opacity` attribute. This was previously discussed
at the geometry nodes workshop:
https://devtalk.blender.org/t/2024-05-13-geometry-nodes-workshop-notes/34760#grease-pencil-14
Pull Request: https://projects.blender.org/blender/blender/pulls/124279
This continues the cmake modernization effort and introduces support for
allowing our optional dependencies to integrate properly. TBB is added
here as it's proven troublesome to maintain correctly.
Currently the only Blender project which uses the TBB headers directly
is `blenlib`. However, all downstream projects which require blenlib as
their dependency, and wish to properly make use of its threading
facilities, needed to define various TBB items in their CMake files. Not
only is this unnecessary and arcane, but several projects didn't do this
and ended up not using threading as well as producing ODR violations
along the way[1].
This PR makes TBB a modern dependency and exposes it PUBLIC'ly from
`blenlib`. All downstream projects which depend on blenlib will now
receive everything they require from TBB automatically. This includes
the `WITH_TBB` define, the headers, and the library itself.
[1] blender/blender@05241f47f5
Pull Request: https://projects.blender.org/blender/blender/pulls/124916
The Cryptomatte node makes the UI very slow in Image mode. That's
because the node updates its available Cryptomatte layers on every
redraw, which is a blocking operation that is not very fast.
To fix this, we only update the layers when engine layers change for
the Scene mode, and when image settings change for Image mode.
Pull Request: https://projects.blender.org/blender/blender/pulls/124738
Cryptomatte layer initialization required the active scene to update the
image user frame, but the image user is already updated through other
mechanisms and is thus redundant to do at draw time, so we remove the
frame update call as well as the scene argument from the call chain. The
frame number of the image user is ignored at compositing time in any
case since it is set to the compositing scene frame.
This is needed for #124738.
This commit moves generated `RNA_blender.h`, `RNA_prototype.h` and
`RNA_blender_cpp.h` headers to become C++ header files.
It also removes the now useless `RNA_EXTERN_C` defines, and just
directly use the `extern` keyword. We do not need anymore `extern "C"`
declarations here.
Pull Request: https://projects.blender.org/blender/blender/pulls/124469
This adds a new mode to the Color Balance node, which applies a white point
transformation similar to the one applied in the view transform.
Unlike the view transform, the compositor node allows specifying both the
source and the destination white point for more flexibility. Both default
to the D65 white point, so just leaving the destination alone achieves the
same behavior.
Pull Request: https://projects.blender.org/blender/blender/pulls/124110
