Cleanup and simplification of GPUMaterial and GPUPass compilation.
See #133674 for details/goals.
- Remove the `draw_manage_shader` thread.
Deferred compilation is now handled by the gpu::ShaderCompiler
through the batch compilation API.
Batch management is handled by the `GPUPassCache`.
- Simplify `GPUMaterial` status tracking so it just queries the
`GPUPass` status.
- Split the `GPUPass` and the `GPUCodegen` code.
- Replaced the (broken) `GPU_material_recalc_flag_get` with the new
`GPU_pass_compilation_timestamp`.
- Add the `GPU_pass_cache_wait_for_all` and
`GPU_shader_batch_wait_for_all`, and remove the busy waits from
EEVEE.
- Remove many unused functions, properties, includes...
Pull Request: https://projects.blender.org/blender/blender/pulls/135637
This improves implicit node inputs in multiple ways:
* Fix crash when switching a group input socket type from e.g. vector to
integer, while the default input is set to "position". Now, the default input
type is reset automatically if it's invalid.
* Add Left/Right Handle as possible implicit vector inputs (next to Position and
Normal). Those were the only ones that we used internally that were not
exposed yet.
* When creating a new group input from an existing socket, also initialize the
default input based on the socket. E.g. when grouping a `Set Position` node,
the `Position` input of the group will now also use the position attribute by
default.
In addition to these user-level changes, some internal changes were done too:
* Use unified `NodeDefaultInputType` in node declaration instead of function
pointers which were hard to propagate to node groups.
* Use a new reusable `socket_type_supports_default_input_type` function in rna
to filter the list of possible input items.
Pull Request: https://projects.blender.org/blender/blender/pulls/139139
Switch from Standard Surface to OpenPBR as the exported MaterialX surface,
since this is the new standard more renderers are adopting and it more closely
matches the Principled BSDF implementation.
Anisotropy support is improved though still not quite the same, as formulas
are different. Nodes are generated to apply anisotropic rotation to the
tangent vector, as there is no corresponding parameter in OpenPBR.
Fixes#138164
Authored by Apple: Lee Kerley
Pull Request: https://projects.blender.org/blender/blender/pulls/138165
This merges the public `uiItemS` and `uiItemS_ex` functions into an
object oriented API (`uiLayout::separator`), matching the python API.
This reduces the difference between the C++ API with the python version,
its also helps while converting code from python to C++ code
(or vice-versa), making it almost seamless.
Part of: #117604
Pull Request: https://projects.blender.org/blender/blender/pulls/138826
This converts the public `uiItemO` function to an object oriented
API (`uiLayout::op`).
Also this rearranges `idname` paramether, since this the only one
required, and to make format similar to `uiItemFullO`
Note: One of the benefits of moving from a public function to class
method is to reduce API usage difference between C++ and Python. In
Python this method is called `UILayout::operator`, however `operator`
is a reserved keyword in C++.
Part of: #117604
Pull Request: https://projects.blender.org/blender/blender/pulls/138776
This converts the public `uiItemFullR` function to an object oriented
API (an overload of `uiLayout::prop`), matching the python API.
This reduces the difference between the C++ API with the python version,
its also helps while converting code from python to C++ code (or vice-versa),
making it almost seamless.
Part of: #117604
Pull Request: https://projects.blender.org/blender/blender/pulls/138683
This converts the public `uiItemR` function to an object oriented
API (`uiLayout::prop`), matching the python API.
This reduces the difference between the C++ API with the python version,
its also helps while converting code from python to C++ code (or vice-versa),
making it almost seamless.
Part of: #117604
Pull Request: https://projects.blender.org/blender/blender/pulls/138617
Add a new shader node to control volume coefficients (scattering,
absorption and emission) directly, making it easier to model existing
volumes with measured data.
Pull Request: https://projects.blender.org/blender/blender/pulls/136287
This converts the public `uiItemL` function to an object oriented
API (`uiLayout::label`), matching the python API.
This reduces the difference between the C++ API with the python version,
its also helps while converting code from python to C++ code (or vice-versa),
making it almost seamless.
Part of: #117604
Pull Request: https://projects.blender.org/blender/blender/pulls/138608
* Remove `DEG_get_evaluated_object` in favor of `DEG_get_evaluated`.
* Remove `DEG_is_original_object` in favor of `DEG_is_original`.
* Remove `DEG_is_evaluated_object` in favor of `DEG_is_evaluated`.
Pull Request: https://projects.blender.org/blender/blender/pulls/138317
This converts the public `uiLayoutColumn` function to an object oriented
API (`uiLayout::column`), matching the python API.
This reduces the difference between the C++ API with the python version,
its also helps while converting code from python to C++ code (or vice-versa),
making it almost seamless.
`uiLayout::column` now returns an `uiLayout` reference instead of a pointer.
New calls to this method should use references too.
Pull Request: https://projects.blender.org/blender/blender/pulls/138034
This converts the public `uiLayoutRow` function to an object oriented
API (`uiLayout::row`), matching the python API.
This reduces the difference between the C++ API with the python version,
its also helps while converting code from python to C++ code (or vice-versa),
making it almost seamless.
`uiLayout::row` now returns an `uiLayout` reference instead of a pointer.
New calls to this method should use references too.
Part of: #117604
Pull Request: https://projects.blender.org/blender/blender/pulls/137979
This makes it possible to restore previous Blender 4.3 behavior of bump
mapping, where the large filter width was sometimes (ab)used to get a bevel
like effect on stepwise textures.
For bump from the displacement socket, filter width remains fixed at 0.1.
Ref #133991, #135841
Pull Request: https://projects.blender.org/blender/blender/pulls/136465
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
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/135855
The Mix Color shader node does not retain the alpha channel of the first
input in both the Linear Light and Soft Light modes, while it is retain
for other modes. Further, result clamping also ignores the alpha due to
using the vector clamp function, which introduces implicit conversion
that removes the alpha.
This does not matter for EEVEE because it does nothing with the alpha
channel. But the code will now be shared with the compositor, which does
care about the alpha channel. So adjust the code accordingly to retain
the alpha in those cases.
Pull Request: https://projects.blender.org/blender/blender/pulls/135632
Unlike all other nodes, the Mix node did not handle all cases of its
automatic label. This assumption was made in 02281dd26a and caused an
issue with reading uninitialized memory. In order to restrict the nodes
API interface later, this fix simply aligns the behavior of the mix node
with all others.
Pull Request: https://projects.blender.org/blender/blender/pulls/135535
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
Nodes that are shared between Geometry and Shader nodes use the prefix
sh_fn for their base type and poll functions. The compositor will also
share those nodes very soon, so we generalize the name to use the prefix
"common".
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
This commit adds the "is volume scatter" output to the light path node
in the shader editor.
All the funcitonal code for this feature already exists in Cycles SVM
and OSL, but the output wasn't exposed on the node.
EEVEE does not support the feature, so it's output will
always be zero.
Pull Request: https://projects.blender.org/blender/blender/pulls/134343
User may think of the `radius` vector value as RGB color, however it's
meant to be the depth of scattering for R/G/B channels. Now clarified in
the desctiption.
Pull Request: https://projects.blender.org/blender/blender/pulls/134088
Fairly weird, debug builds were fine, but release ones with clang 19
and mold failed at linking step, complaining about misisng
`bNode::output_sockets()` symbol.
Guess debug config somehow pulls this symbol from somewhere else?
This bug occurs when the user deletes the rightmost stop on a
color ramp with 2 stops. After doing this, the color ramp appears
to stop updating its results.
This bug is due to a shader optimization for color ramps. For ramps
with 2 stops or less, the first and second stops are hardcoded as
inputs to get the results of the color ramp. When deleting the
rightmost stop, the stop's data isn't actually changed. The ramp
just updates its total stop number. Because of this, the result of
the color ramp won't change.
This is fixed by only allowing this optimization when a ramp has
exactly 2 stops. This solution works well since it keeps color ramp
code neat and concise. It also makes more logical sense to only allow
this optimization to work with 2 stops since it uses 2 hardcoded values
from the color ramp. It's also unlikely this will lead to adverse
performance problems since it doesn't make sense to use a color ramp
with 1 color stop. In that case, the user should just use an RGB node.
Another possible solution for this problem would be to update the data
for the second stop in the color ramp to exactly match the first when
deleting the second stop. However, this is undesirable since the code
wouldn't make much sense to those who don't know about the color ramp
optimizations.
Pull Request: https://projects.blender.org/blender/blender/pulls/132951
Color to grayscale conversions should take into account the colorspace,
and these are considered to be in scene linear colorspace.
Note the RBG to BW node implementation is used for implicit conversions,
so that is covered as well.
No change with the default configuration.
Pull Request: https://projects.blender.org/blender/blender/pulls/133368
Use BLI_uniquename_cb to check and fix naming conflicts, and keep track
of the potentially modified node names in a map.
Reserve the material name, so that later the output node can be renamed to it
without conflicts. Also make sure there are no conflicts with names auto
generated by MaterialX, by always naming nodes ourselves.
Pull Request: https://projects.blender.org/blender/blender/pulls/133234
This uses the following accessor methods in more places in more places:
`is_group()`, `is_group_input()`, `is_group_output()`, `is_muted()`,
`is_frame()` and `is_reroute()`.
This results in simpler code and reduces the use of `bNode.type_legacy`.
Pull Request: https://projects.blender.org/blender/blender/pulls/132899
This makes specifying a legacy type for new node types optional (e.g.
`GEO_NODE_MESH_TO_CURVE`). Instead, only the `idname` is used as a stable
identifier for node types. So there is less redundancy for now.
This change helps with the decentralized definition of nodes and reduces the
number minimum number of files that need to be changed for a new node from 5 to
4. It especially helps when multiple nodes are worked on at the same time,
because the legacy type definition was very prone to have merge conflicts.
For compatibility reasons and because it's still used by existing code, the
`legacy_type` is not removed. All existing nodes keep their current
`legacy_type`. New nodes will receive an auto-incremented legacy type. It's
still necessary to give nodes unique legacy types, because some code checks if
two nodes have the same type by comparing their `legacy_type`. These types only
have to be unique at run-time though. Some randomness is used to avoid depending
on stable generated legacy types accidentally.
Pull Request: https://projects.blender.org/blender/blender/pulls/133044
- "Strength" in the context of Grease Pencil, deals with opacity, and
adjusts the brush stroke alpha.
- "Strength" can mean measurable units like 'noise', 'light', etc.
- Anything else using physical strength in a generic concept.
Issue reported by Hoang Duy Tran.
