The ownership of image views depends on how they are used. When used as
an framebuffer attachment the image view is owned by the framebuffer.
When used as a image/texture in a shader the ownership of the image view
is the texture itself.
Pull Request: https://projects.blender.org/blender/blender/pulls/108765
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/
Current implementation of the Color Blend State worked for framebuffers
with a single attachment. This PR adds support for Color Blend State for
multiple attachments. It is assumed that the Blend State is the same for
all attachments.
NOTE: Integer based attachments aren't yet supported. In OpenGL it is
assumed that Integer based attachments aren't blended. It is currently
to early to tell if this is also the case for Vulkan. If this assumption
is incorrect we should use multi blend state.
Pull Request: https://projects.blender.org/blender/blender/pulls/108419
Vulkan coordinate system is flipped compared to OpenGL. This PR
flips the drawing when drawn to the on-screen frame buffer.
Offscreen frame buffers are still drawn upside down.
The flipping is done by making the viewport of the framebuffer negative.
Pull Request: https://projects.blender.org/blender/blender/pulls/107743
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.
This PR adds support for clearing framebuffers and scissor testing.
Tweaks had to be made to VKTexture to keep track of its layout
on the device. Based on the actual call the layout can switch
to a more optimum layout.
For example during upload of a texture the texture will be converted
to a transfer destination optimized layout. When reading from the
texture it will be converted to a transfer source optimized layout.
The order of the attachments in the framebuffer follows the next rules
- When only color attachments are there the color attachments will
be placed in the slot they are defined. This way it will match
the ShaderCreateInfo binding location.
- When a stencil/depth attachment is added it will be placed
right after the color attachments. When there isn't a color
attachment it will be the first attachment.
Pull Request: https://projects.blender.org/blender/blender/pulls/106044
This was backported from tmp-vulkan. When disabling the fence check
in ghost it is able to start blender. It will show a black screen
so not usable for users.
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
