Until now the Vulkan backend supported a single pre-configured sampler.
This PR realizes creation, caching and freeing of samplers based on what
is required by the state manager.
The implementation is similar to OpenGL or Metal. This fixes many issues
including:
- Textures in workbench and eevee use the correct extend and filtering
- Custom icons render correctly
- Depth sampling issues
- Removes artifacts using EEVEE world shader, lighting and indirect lighting.
Pull Request: https://projects.blender.org/blender/blender/pulls/114827
Previous implemetation had some limitations that were not working
for complex shaders. This limitations included:
* All bindings should be bound to a location < 16.
* Collision could happen when image locations where read that
overlapped with the texture locations.
This PR replaces the fixed binding locations with a dynamic vector.
When allocating locations for images the image offset is determined
that it is always clear if the requested locations is already
offsetted or not. This is done by ensuring the offset to larger than
the max slot of samplers, but also of image slots.
When using Eevee-next materials the slot numbers can be very high
as the location of the first material texture is set to
`GPU_max_textures_frag()` On current NVIDIA drivers this number is
set to 1K. Images are stored after the textures slots upwards.
In the future driver could set this to MAX_INT which will not work
with the new implementation. This isn't the case at this moment
and perhaps also not realistic. We don't check for this situation yet.
Pull Request: https://projects.blender.org/blender/blender/pulls/112511
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.
The current Vulkan resource management has some issues as context that
are not active can still use resources that are freed via another
context.
When this happens incorrect data can be read on the GPU and even crash
Blender. When trying to bind something that now contains other memory
pointers.
This change introduces that contexts are tracked via the device.
Context will be registered/unregistered with the device instance.
Unbinding of resources must pass the device and the device will check
all registered contexts. Binding of resources will happen via the active
context only.
On user perspective this now allowes:
- Opening/switching files
- Switching workspaces
- Switching render engines
Pull Request: https://projects.blender.org/blender/blender/pulls/108968
Jeroen Bakker
Campbell Barton