Some minor tweaks to the vulkan backend to support grease pencil
drawing. The changes include:
* Add support for GPU_DATA_10_11_11_REV clearing
* Use correct index buffer start and count
Anti aliasing isn't working as they require different samplers being
configured and that require some design work.
Effects haven't been tested.
Pull Request: https://projects.blender.org/blender/blender/pulls/114659
Goal is to reduce the number of command buffer flushes by tracking what is
happening in the different command queues. This is an initial step towards
advanced queue-ing strategies.
The new (intermediate) strategy records commands to different command
buffers based on what they do. There is a command buffer for data transfers,
compute pipelines and graphics pipelines.
When a compute command is recorded it ensures that all graphic commands
are finished. When a graphic command is recorded it ensures all compute
commands are finished. When a graphic or compute command is scheduled
all recorded data transfer commands are scheduled as well.
Some improvements are expected as multiple compute and data transfers
commands can now be scheduled at the same time and don't need to unbind
and rebind render passes. Especially when using EEVEE-Next which is
compute centric the performance change is visible for the user.
Pull Request: https://projects.blender.org/blender/blender/pulls/114104
This PR implements indirect drawing for the Vulkan backend. Indirect
drawing is a requirement for workbench-next.
NOTE: that this is one of multiple changes needed to get to the same
support level. With this patch only objects at the center of the world
are drawn correctly.
Pull Request: https://projects.blender.org/blender/blender/pulls/111334
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/
Initial graphic pipeline targeting. The goal of this PR is to have an initial
graphics pipeline with missing features. It should help identifying
areas that requires engineering.
Current state is that developers of the GPU module can help with the many
smaller pieces that needs to be engineered in order to get it working. It is not
intended for users or developers from other modules, but your welcome to learn
and give feedback on the code and engineering part.
We do expect that large parts of the code still needs to be re-engineered into
a more future-proof implementation.
**Some highlights**:
- In Vulkan the state is kept in the pipeline. Therefore the state is tracked
per pipeline. In the near future this could be used as a cache. More research
is needed against the default pipeline cache that vulkan already provides.
- This PR is based on the work that Kazashi Yoshioka already did. And include
work from him in the next areas
- Vertex attributes
- Vertex data conversions
- Pipeline state
- Immediate support working.
- This PR modifies the VKCommandBuffer to keep track of the framebuffer and its
binding state(render pass). Some Vulkan commands require no render pass to be
active, other require a render pass. As the order of our commands on API level
can not be separated this PR introduces a state engine to keep track of the
current state and desired state. This is a temporary solution, the final
solution will be proposed when we have a pixel on the screen. At that time
I expect that we can design a command encoder that supports all the cases
we need.
**Notices**:
- This branch works on NVIDIA GPUs and has been validated on a Linux system. AMD
is known not to work (stalls) and Intel GPUs have not been tested at all. Windows might work
but hasn't been validated yet.
- The graphics pipeline is implemented with pixels in mind, not with performance. Currently
when a draw call is scheduled it is flushed and waited until it is finished drawing, before
other draw calls can be scheduled. We expected the performance to be worse that it actually
is, but we expect huge performance gains in the future.
- Any advanced drawing (that is used by the image editor, compositor or 3d viewport) isn't
implemented and might crash when used.
- Using multiple windows or resizing of window isn't supported and will stall the system.
Pull Request: https://projects.blender.org/blender/blender/pulls/106224
The goal is to solve confusion of the "All rights reserved" for licensing
code under an open-source license.
The phrase "All rights reserved" comes from a historical convention that
required this phrase for the copyright protection to apply. This convention
is no longer relevant.
However, even though the phrase has no meaning in establishing the copyright
it has not lost meaning in terms of licensing.
This change makes it so code under the Blender Foundation copyright does
not use "all rights reserved". This is also how the GPL license itself
states how to apply it to the source code:
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software ...
This change does not change copyright notice in cases when the copyright
is dual (BF and an author), or just an author of the code. It also does
mot change copyright which is inherited from NaN Holding BV as it needs
some further investigation about what is the proper way to handle it.
For example
```
OIIOOutputDriver::~OIIOOutputDriver()
{
}
```
becomes
```
OIIOOutputDriver::~OIIOOutputDriver() {}
```
Saves quite some vertical space, which is especially handy for
constructors.
Pull Request: https://projects.blender.org/blender/blender/pulls/105594
This patch adds a placeholder for the vulkan backend.
When activated (`WITH_VULKAN_BACKEND=On` and `--gpu-backend vulkan`)
it might open a blender screen, but nothing should be visible as
none of the functions are implemented or otherwise crash on a nullptr.
This is expected as this is just a placeholder. The goal is to add shader compilation
+validation to this backend as one of the next steps so we can validate
changes to existing shaders on OpenGL, Metal and Vulkan at the same time.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16338
Jeroen Bakker
Campbell Barton
Sergey Sharybin
Chris Blackbourn
Jeroen Bakker