This fixes VR pink screen issues when using the DirectX backend, caused
by `wglDXRegisterObjectNV()` failing to register the shared
OpenGL-DirectX render buffer. The issue is mainly present on AMD
graphics, however, there have been reports on NVIDIA as well.
A limited workaround for the SteamVR runtime (AMD only) was provided
in rB82ab2c167844, however this patch provides a more complete solution
that should apply to all OpenXR runtimes. For example, with this patch,
the Windows Mixed Reality runtime that exclusively uses DirectX can now
be used with AMD graphics cards.
Implementation-wise, a `GL_TEXTURE_2D` render target is used as a
fallback for the shared OpenGL-DirectX resource in the case that
registering a render buffer (`GL_RENDERBUFFER`) fails. While using a
texture render target may be less optimal than a render buffer, it
enables proper display in VR using the OpenGL/DirectX interop (tested
on AMD Vega 64).
Reviewed By: Severin
Differential Revision: https://developer.blender.org/D14100
StringGrid has been deprecated in openvdb 9.0.0 and will be removed soon
Reviewed By: Brecht
Differential Revision: http://developer.blender.org/D14133
GLUT does not support offscreen contexts, which is required for the new
display driver. So we use SDL instead. Note that this requires using a
system SDL package, the Blender precompiled SDL does not include the video
subsystem.
There is currently no text display support, instead info is printed to
the terminal. This would require adding an embedded font and GLSL shaders,
or using GUI library.
Another improvement to be made is supporting OpenColorIO display transforms,
right now we assume Rec.709 scene linear and display.
All OpenGL, GLEW and SDL code was move out of core cycles and into
app/opengl. This serves as a template for apps that want to integrate
Cycles interactive rendering, with a simple OpenGLDisplayDriver example.
In general this would be adapted to the graphics API and color management
used by the app.
Ref T91846
Due to recent changes there have been reports of incorrect loading of
GPU textures. This fix reverts a part of {D13238} that might be the
source of the issue.
This does not happen with **any** image, but with images that have ID
properties.
ID properties are used to store view projection matrices (e.g. for
reprojection with `Image from View` or `Quick Edit` -- these are the
ones we are interested in), but of course they can be used for anything
else, too. The images in the file from the report have ID properties from
an Addon for example.
So the crash can reliably be reproduced with **any** image doing the
following:
```
bpy.data.images['myImage']['myIDprop'] = "foo"
```
This would lead code in `texture_paint_camera_project_exec` to think the
needed `view_data` is on the image (but in reality it was just some
other IDprop).
Solution is simple: just check `view_data` is really valid after getting
it from the IDprops.
Maniphest Tasks: T95787
Differential Revision: https://developer.blender.org/D14116
Although rB56407432a6a did fix missing subdivision in some cases, in
other cases it did not return the mesh wrapper (like when using
autosmooth, which requires a copy of the mesh), so the non-subdivided
mesh was still returned.
Not all coarse vertices were used to compute the center value (off by
one), and the interpolation for the current would always start at the
base corner for the base face instead of the base corner for the current
patch.
Set "view2d_edge_pan" to true for the NODE_OT_translate_attach operator,
which is used by the duplication operator. This is done in the keymap so
that it's not hard-coded.
Differential Revision: https://developer.blender.org/D13934
The root issue was caused by a mistake in modifier copy data which was
wrongly re-generating source modifier data identifier.
The c8cca88851 simply exposed a bug in code which always was there
since the modifiers session UUID was introduced.
Shows an importance of const qualifier :)
Since now we delegate the evaluation of the last subsurf modifier in the stack
to the draw code, Cycles does not get a subdivided mesh anymore. This is because
the subdivision wrapper for generating a CPU side subdivision is never created
as it is only ever created via `BKE_object_get_evaluated_mesh` which Cycles does
not call (rather, it accesses the Mesh either via `object.data()`, or via
`object.to_mesh()`).
This ensures that a subdivision wrapper is created when accessing the object data
or converting an Object to a Mesh via the RNA/Python API.
Reviewed by: brecht
Differential Revision: https://developer.blender.org/D14048
The crash is caused as we did not check that the RNA pointer is null
before trying to use it. This moves the existing checks from the
modifier panels into the template functions so the logic is a bit
centralized.
The issue has two causes: on one hand origin indices were not handled
properly, on the other hand the extraction type (Mesh, BMesh, or mapped)
was not detected correctly.
For the second case reuse the MeshRenderData creation from the coarse
code path so that we make the same decisions. Loose geometry extraction
had to be updated to properly handle the BMesh cases.
For the origin indices, in some cases (for edges and faces), the arrays
used by the subdivision code already have the origin indices baked into
them, so mapping them a second time through the origin index layer is
wrong, and could cause out of bounds accesses.
For vertices especially, we would use two arrays: one for mapping
subdivision vertices to coarse vertices, and another one to map coarse
vertices to subdivision loops used for the selection index buffer. The
second one is now removed (which saves a bit of memory) as it is did not
have the proper data setup for use with the origin indices and we can
easily compute it using the first array anyway.
Fix segfault when calling `some_id.id_properties_ui("propname").update()`,
i.e. call the `update()` function without any keyword arguments. In such
a case, Python passes `kwargs = NULL`, but `PyDict_Contains()` is not
`NULL`-safe.
The Viewer marked the gpu texture to be out of date. But it should have used
the mark_full_update as the gpu textures
are only used by the render/draw engines.
The image/node editor uses the image engine that have its own GPU textures.
Currently one a single texture slot is used to update the screen.
Current design is implemented to use multiple textures.
for now limit the number of texture slots to 1.
This node is a bit of a weird case, because it uses the value stored in an
output socket as an input. So when we want to determine if the Dot
changed, we also have to check if the Normal output changed.
A cleaner solution would be to refactor this by either storing the normal
on the node directly (instead of in an output socket), or by exposing it
by a separate input. This refactor should be done separately though.
The animation playback did not take into account individual stereoscopic views.
This patch fixes this by playing back the active view render.
Reviewed By: campbellbarton
Maniphest Tasks: T91423
Differential Revision: https://developer.blender.org/D14070
Workaround for a compilation issue preventing kernels compiling for AMD GPUs: Avoid problematic use of templates on Metal by making `gpu_parallel_active_index_array` a wrapper macro, and moving `blocksize` to be a macro parameter.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14081
* Apple Silicon support enabled on macOS 12.2+
* AMD support enabled on macOS 12.3+
This patch also fixes a device enumeration crash on certain AMD configs which
was caused by over-release of MTLDevice objects.
Differential Revision: https://developer.blender.org/D14090
The rbit instruction is only available starting with ARMv6T2 and
the register prefix is different from what AARCH64 uses.
Separate the 32 and 64 bit ARM branches, add missing ISA checks.
Made sure the code works as intended on macMini with Apple silicon,
and on Raspberry Pi 4 B running 32bit Raspbian OS.
Differential Revision: https://developer.blender.org/D14056
Instead of creating and destroying threads when starting and stopping renders,
keep a single thread alive for the duration of the session. This makes it so all
display driver OpenGL resource allocation and destruction can happen in the same
thread.
This was implemented as part of trying to solve another bug, but it did not
help. Still I prefer this behavior, to eliminate potential future issues wit
graphics drivers or with future Cycles display driver implementations.
Differential Revision: https://developer.blender.org/D14086
For reasons unclear, destroying and then recreating a vertex buffer in the
render OpenGL context is affecting the immediate mode vertex buffer in the
draw manager OpenGL context.
Instead just create a single vertex buffer and use it for the lifetime of
the render OpenGL context. There's not really any need to have a separate
one per tile as far as I can tell.
Differential Revision: https://developer.blender.org/D14084
Due to the freeing and re-creation of textures performed when binding
offscreen viewports, VR viewport textures would be needlessly
re-created every drawing iteration, leading to a negative impact on VR
frame rate.
This was brought to light by 6738ecb64e, which introduced an
additional texture clear operation on initialization and was
prohibitively costly on some systems when performed every frame.
Now, the textures for VR viewports will not be always re-created
during offscreen binding, but only when necessary using a pre-drawing
step (`wm_xr_session_surface_offscreen_ensure()`).
Reviewed By: jbakker, fclem
Differential Revision: https://developer.blender.org/D14059
When using a RGBA16 (`GL_RGBA16`, `DXGI_FORMAT_R16G16B16A16_UNORM`)
swapchain format with Quest 2, no image is presented to the headset.
This can occur when using the SteamVR runtime with an AMD graphics card
(ex. T95374).
Workaround is to move this format after the Quest 2-compatible RGBA16F
formats in the candidates list so that the RGBA16F formats are chosen
instead.
Reviewed By: Severin
Differential Revision: https://developer.blender.org/D14024
Crash was caused since the function pointers
`s_xrGetOpenGLGraphicsRequirementsKHR_fn`/
`s_xrGetD3D11GraphicsRequirementsKHR_fn` were static and were not
updated with the correct proc address after being set the first time.
As stated in the OpenXR spec: "function pointers returned by
xrGetInstanceProcAddr using one XrInstance may not be valid when used
with objects related to a different XrInstance".
Although it would seem reasonable that the proc address would not
change if the instance was the same (hence the `static XrInstance s_instance;`),
in testing, repeated calls to `xrGetInstanceProcAddress()`
with the same instance still can result in changes (at least for the
SteamVR runtime) so the workaround is to simply set the function pointers
every time, essentially trivializing their `static` designations.
Reviewed By: Severin
Maniphest Tasks: T94268
Differential Revision: https://developer.blender.org/D14023
For the majority of node groups created in Blender 3.0 the behavior does not change.
So far we only found a single file where this setting has an effect.
Differential Revision: https://developer.blender.org/D14078
