This reduces the API and make it more clear where there
is the global access.
This also removes some of these global access by merging
the `DRW_context_get()` calls.
This removes the old `DrawEngineType` and use the new `DrawEngine`
virtual class instead.
This removes a lot of boilerplate functions that were only there for
legacy reason.
To this end, some engines that were based on static functions have been
refactored into `Instance` classes. This was particularly cumbersome
for the Grease pencil engine which needed some more refactoring.
The `Engine` class that is in each namespace is a workaround to isolate
the internal implementation (i.e. the `Instance`) to the engine
modules. Without this, the whole engine is getting included in each
compile unit that includes the `Instance` class. Eventually, if we get
rid of these intricate dependencies, we could remove the `Engine` class.
Pull Request: https://projects.blender.org/blender/blender/pulls/136001
This replaces the deprecated DrawData mechanism by the
usage of the update timestamp `last_update`.
The compositor keeps the `last_update` value of the cached ID
and compares it with the value on the ID at the time of evaluation.
Rel #134690
Pull Request: https://projects.blender.org/blender/blender/pulls/134878
Allow extending the DRWState on select_bind so backface culling can be used when needed.
Note: There's still a difference in behavior with Overlay Legacy, causing backface culled flat objects to still be selectable at the edges, due to the "MeshFlat" workaround.
Pull Request: https://projects.blender.org/blender/blender/pulls/135867
Resolves several int -> uint conversion warnings. Warnings like the
following will be printed otherwise:
```
|
225 | uint shadow_type = flags & 0xF;
| ^
| gpu_shader_text_vert.glsl:17:22: Warning: some implementations
may not support implicit int -> uint conversions for `&'
operators; consider casting explicitly for portability
```
Pull Request: https://projects.blender.org/blender/blender/pulls/135890
This refactor part of `draw_manager_c.cc` to make it more understandable
and less bug prone.
- Splits the context handing to `draw_gpu_context.cc`
- Rename `draw_manager_c.cc` to `draw_context.cc`
- Merge `DRWContextState` into `DRWContext`
- Merge lots of static functions into `DRWContext` to avoid global access
- Deduplicate code between entry point functions
- Move context init logic to `DRWContext` constructor
- Move resource init logic to `DRWContext::acquire_data`
- Move extraction `TaskGraph` out of `DRWContext`
- Reduce / centralize complexity of enabling draw engines
- Reduce the amount of `drw_get` calls
- Remove unused code
Pull Request: https://projects.blender.org/blender/blender/pulls/135821
This removes the use of `system_gpu_context_mutex`
which was making render command submission threadsafe.
The only issue is the concurent usage of GPUShader objects.
To fix this, we only guard the submission section which
are the only parts that uses the GPUShaders.
Removing this critical section all together requires some changes
in the GPUShader. See #135406
Rel #134690
Pull Request: https://projects.blender.org/blender/blender/pulls/135595
In the report, the bounds didn't include the curves generated from the
original legacy curve object. Generally we need to access the evaluated
geometry bounds here when the object is a geometry object.
This depends on 06f6d77979 for consistent behavior with
curve radii. That's why the fix is limited to main rather than 4.4.
Pull Request: https://projects.blender.org/blender/blender/pulls/135639
The issue was happening because the `is_render_depth_available`
state flag was false leading to the depths being cleared.
When we use `is_depth_only_drawing`, we expect
that the depth is valid because the Grease Pencil
engine will write them.
Pull Request: https://projects.blender.org/blender/blender/pulls/135619
This avoid having to flush explicitely and the need for syncing.
It also removes a lot of complexity in the process.
These updates are not granular and do not need to so much
boiler plate code.
The depsgraph update counter now becomes atomic to avoid
undefined behavior when a depsgraph is being destroyed and
its memory reused (same thinking as the non-copy-on-eval IDs).
I tested some use cases (object update, sculpt update,
shading update) and they are all working.
Pull Request: https://projects.blender.org/blender/blender/pulls/135580
The owner of the context is now always the local context.
The `DRWContext` is now a temporary object that owns
no data.
The draw debug API is being put in a non-working state by
this PR as it conflicts with the new lifetime / ownership of
the `DRWContext` class.
A new design with a global (threadsafe) debug module is needed
to add back support for these debug features. Note that these
are not user facing features.
Some parts of EEVEE are still calling the global context and that
caused crashes in the volume probe baking pipeline where
the context is not yet known. Sort circuiting these function
calls in this case fixes the issue, but a more longer term
solution would be to alway have a `DRWContext` available inside
`eevee::Instance`.
I did some testing and didn't find much of a difference in frame time.
However, we should still strive to remove all global access in the future
to avoid potential overhead of `thread_local`.
Pull Request: https://projects.blender.org/blender/blender/pulls/135521
Replicate the Overlay-Legacy behavior for selected face overlays in
X-Ray mode:
Use depth testing for `edit_mesh_faces_ps_` when X-Ray is fully opaque.
X-Ray is always considered fully opaque in Preview/Render mode since
X-Ray transparency is not supported.
Pull Request: https://projects.blender.org/blender/blender/pulls/135524
Setting the offset to 0 for these cases fixes the issue.
We still want to draw the edit face in this case to a be able
to zoom on the retopo surface. We just don't want the offset.
Pull Request: https://projects.blender.org/blender/blender/pulls/135511
The detection of when the wireframe is drawn by the edit mode overlays
instead was incorrect and didn't handle recent changes to avoid drawing
edit mode overlay data for invalid evaluated/original edit mesh mappings.
See code comments for more detail.
Pull Request: https://projects.blender.org/blender/blender/pulls/135402
