This PR adds builtin shaders for drawing points. Using `FLAT_COLOR`,
`SMOOTH_COLOR`, `UNIFORM_COLOR` can lead to undesired behavior
on Metal and Vulkan backends. To ensure future compatibility this PR
adds `POINT_FLAT_COLOR` and `POINT_UNIFORM_COLOR`.
The point size can be set using `gpu.state.point_size_set`.
Pull Request: https://projects.blender.org/blender/blender/pulls/139583
This is adding a hard error for backends do that do not supports it.
Even without this, the backend would return a nullptr. But the error
message in this case was just "see console for more details" without
any additional detail. Which was confusing.
This is getting in the way of making the
GPUShader API more threadsafe.
This getter already doesn't work for vulkan
and Metal, and has very limited usage.
Keeping the python function to avoid errors
and display a deprecation warning.
Pull Request: https://projects.blender.org/blender/blender/pulls/136983
PR #129315 refactored polylines. The shaders now attaches the vertex
attributes as SSBOs. Adding a workaround for polyline shaders to
extract the correct vertex formats when called via Python.
Pull Request: https://projects.blender.org/blender/blender/pulls/132689
Confusing error messages are printed when requesting a clipped builtin
shader via Python that does not exist.
This PR will remove the confusion of the messaging:
- Replaced BLI_assert_unreachable with an assert as it is reachable
code.
- Adding clipped configuration for POLYLINE_UNIFORM_COLOR
Pull Request: https://projects.blender.org/blender/blender/pulls/132686
In Blender 4.4 (since commit 00a8d006fe), polyline shaders stopped
using geometry shaders and now rely on SSBOs.
In C++, workarounds allow these shaders to function as before, albeit
with some limitations.
However, this change broke the `batch_for_shader` function in Python,
as `GPUShader.attrs_info_get()` only reads attributes and does not
support SSBOs.
To address this, the method now treats polyline shaders differently,
accessing SSBO inputs instead of attributes.
fix
Replace plain-text type information with the type syntax used
for Python's type annotations as it's more concise, especially for
callbacks which often didn't include useful type information.
Note that this change only applies to inline doc-strings,
generated doc-strings from RNA need to be updated separately.
Details:
- Many minor corrections were made when "list" was incorrectly used
instead of "sequence".
- Some type information wasn't defined in the doc-strings and has been
added.
- Verbose type info would benefit from support for type aliases.
Move most of the string preprocessing used for MSL
compatibility to `glsl_preprocess`.
Enforce some changes like matrix constructor and
array constructor to the GLSL codebase. This is
for C++ compatibility.
Additionally reduce the amount of code duplication
inside the compatibility code.
Pull Request: https://projects.blender.org/blender/blender/pulls/128634
Add-ons may attempt to load the GPU module in background mode when no GPU
context has been initialized yet. This would give an error on import.
If then later the GPU context does get initialized, for example for a
render engine, import would still fail as the module is cached.
This reverts commit d7f124f06f, and again
throws errors in methods and constructors instead of module import.
Pull Request: https://projects.blender.org/blender/blender/pulls/123395
Along with the 4.1 libraries upgrade, we are bumping the clang-format
version from 8-12 to 17. This affects quite a few files.
If not already the case, you may consider pointing your IDE to the
clang-format binary bundled with the Blender precompiled libraries.
Motivation: When discussing with @Jeroen-Bakker and @aras_p about how to
approach sorting when rendering Gaussian splats in Blender, we realised that
compute shaders could help there (and have many other use cases), and that also
due to Blender 4.0 being on OpenGL >= 4.3, we can now rely on compute shaders
existing.
This PR is an initial pass for that functionality. It comes with a Python example, which
runs a compute shader and saves the output to a texture, which is then rendered in the
viewport.
There is no exposed support for storage buffers yet, but I expect I'll be able to work on
them soon if this is accepted.
The newly added parts are:
1. `gpu.compute.dispatch()`
2. a way set the compute source to `GPUShaderCreateInfo`: `shader_info.compute_source()`
3. a way to set the image store for `GPUShaderCreateInfo`: `shader_info.image()`
4. a way to set the `local_group_size` for `GPUShaderCreateInfo`: `shader_info.local_group_size(x,y,z)`
5. a way to get `max_work_group_size` from capabilities: `gpu.capabilities.max_work_group_size_get(index)`
6. a way to get `max_work_group_count` from capabilities: `gpu.capabilities.max_work_group_count_get(index)`
Pull Request: https://projects.blender.org/blender/blender/pulls/114238
- Account for new member in _PyArg_Parser.
- Many Python op-codes have been removed.
For the moment these are disabled in is_opcode_secure.
Some should be added back as intrinsics, noted in code-comments.
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.
