This fixes T93051, T76405 and maybe others.
Characters like '²', '<' are not recognized in Blender's shortcut keys.
And sometimes simple buttons like {key .} and {key /} on the Windows
keyboard, although the symbol is "known", Blender also doesn't
detect for shortcuts.
For Windows, some of the symbols represented by `VK_OEM_[1-8]` values,
depending on the language, are not mapped by Blender.
On Mac there is a fallback reading the "actual character value of the
'remappable' keys". But sometimes the character is not mapped either.
On Windows, the solution now mimics the Mac and tries to read the button's
character as a fallback.
For unmapped characters ('²', '<', '\''), now another value is chosen as a
substitute.
More "substitutes" may be added over time.
Differential Revision: https://developer.blender.org/D14149
Without ray offsets intersections at neigbhoring triangles are found, as
the ray start is exactly at the vertex. There was a small offset towards
the center of the triangle, but not enough.
Now this offset computation is moved into Cycles and modified for better
results. It's still not perfect though like any offset approach, especially
with long thin triangles.
Additionaly, this uses the shadow terminate offset for AO rays now, which
helps remove some pre-existing artifacts.
This commit should suffice to make the shader API agnostic now (given that
all users of it use the GPU API).
This makes the shaders not trigger a false positive error anymore since
the binding slots are now garanteed by the backend and not changed at
after compilation.
This also bundles all uniforms into UBOs. Making them extendable without
limitations of push constants. The generated uniforms from OCIO are not
densely packed in the UBO to avoid complexity. Another approach would be to
use GPU_uniformbuf_create_from_list but this requires converting uniforms
to GPUInputs which is too complex for what it is.
Reviewed by: brecht, jbakker
Differential Revision: https://developer.blender.org/D14123
When new display driver is given to the PathTrace ensure that there are
no GPU resources used from it by the work. This solves graphics interop
descriptors leak.
This aqlso fixes Invalid graphics context in cuGraphicsUnregisterResource
error when doing final render on the display GPU.
Fixes T95837: Regression: GPU memory accumulation in Cycles render
Fixes T95733: Cycles Cuda/Optix error message with multi GPU devices. (Invalid graphics context in cuGraphicsUnregisterResource)
Fixes T95651: GPU error (Invalid graphics context in cuGraphicsUnregisterResource)
Fixes T95631: VRAM is not being freed when rendering (Invalid graphics context in cuGraphicsUnregisterResource)
Fixes T89747: Cycles Render - Textures Disappear then Crashes the Render
Maniphest Tasks: T95837, T95733, T95651, T95631, T89747
Differential Revision: https://developer.blender.org/D14146
This affected loading of EXR files with set to Linear ACES colorspace, as
well as the sky texture for in some custom OpenColorIO configurations.
Use the builtin OpenColorIO transform from ACES AP0 to XYZ D65 to fix this.
This is a bug on the Blender side, where the depsgraph does not have proper
relations for text object duplis and fails to include the required materials
in the dependency graph. But at least Cycles should not crash.
Coarse meshes with high polycount would show as corrupted when GPU
subdivision is used with AMD cards This was caused by the OpenSubdiv
library not taking `GL_MAX_COMPUTE_WORK_GROUP_COUNT` into account when
dispatching computes. AMD drivers tend to set the limit lower than
NVidia ones (2^16 for the former, and 2^32 for the latter, at least
on my machine).
This moves the `GLComputeEvaluator` from the OpenSubdiv library into
`intern/opensubdiv` and modifies it to compute a dispatch size in a
similar way as for the draw code: we split the dispatch size into a 2
dimensional value based on `GL_MAX_COMPUTE_WORK_GROUP_COUNT` and
manually compute an index in the shader.
We could have patched the OpenSubdiv library and sent the fix upstream
(which can still be done), however, moving it to our side allows us to
better control the `GLComputeEvaluator` and in the future remove some
redundant work that it does compared to Blender (see T94644) and
probably prepare the ground for Vulkan support. As a matter of fact,
this patch also removes the OpenGL initialization that OpenSubdiv would
do here. This removal is not related to the bug fix, but necessary to not
have to copy more files/code over.
Differential Revision: https://developer.blender.org/D14131
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
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
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
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 curve-heavy scenes, memory consumption regressed when we switched from MetalRT to bvh2. Allow users to opt in to MetalRT to workaround this.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14071
Disable binary archives on Apple Silicon (issue stems from instancing multiple PSOs from the same binary archive). Pipeline creation still filters through the OS shader cache, mitigating any impact on setup times after the initial render.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14072
There are two things achieved by this change:
- No possible downcast of size_t to int when calculating motion steps.
- Disambiguate call to `min()` which was for some reason considered
ambiguous on 32bit platforms `min(int, unsigned int)`.
- Do the same for the `max()` call to keep them symmetrical.
On an implementation side the `min()` is defined for a fixed width
integer type to disambiguate uint from size_t on 32bit platforms,
and yet be able to use it for 32bit operands on 64bit platforms without
upcast.
This ended up in a bit bigger change as the conditional compile-in of
functions is easiest if the functions is templated. Making the functions
templated required to remove the other source of ambiguity which is
`algorithm.h` which was pulling min/max from std.
Now it is the `math.h` which is the source of truth for min/max.
It was only one place which was relying on `algorithm.h` for these
functions, hence the choice of `math.h` as the safest and least
intrusive.
Fixes 32bit platforms (such as i386) in Debian package build system.
Differential Revision: https://developer.blender.org/D14062
There are two things achieved by this change:
- No possible downcast of size_t to int when calculating motion steps.
- Disambiguate call to min() which was for some reason considered
ambiguous on 32bit platforms `min(int, unsigned int)`.
On an implementation side the `min()` is defined for a fixed width
integer type to disambiguate uint from size_t on 32bit platforms,
and yet be able to use it for 32bit operands on 64bit platforms without
upcast.
Fixes 32bit platforms (such as i386) in Debian package build system.
Differential Revision: https://developer.blender.org/D13992
This patch reverts the normal behavior of the spotlights. In the last fix,
the returned normal of a spot light was equal to its direction. This broke
some texturing methods used by artists.
Differential Revision: https://developer.blender.org/D13991
Sometime throughout development some checks got lost during refactor.
This change makes it so that if OIDN is not supported on the current
CPU Cycles will report an error and stop rendering. This behavior is
similar to when an OptiX denoiser is requested and there is no OptiX
compatible device available.
The easiest way to verify this change is to force return false from
the `openimagedenoise_supported()`.
Fixes Cycles part of the T94127.
Differential Revision: https://developer.blender.org/D13944
Remove small ray offsets that were used to avoid self intersection, and leave
that to the newly added primitive object/prim comparison. These changes together
significantly reduce artifacts on small, large or far away objects.
The balance here is that overlapping primitives are not handled well and should
be avoided (though this was already an issue). The upside is that this is
something a user has control over, whereas the other artifacts had no good
manual solution in many cases.
There is a known issue where the Blender particle system generates overlapping
objects and in turn leads to render differences between CPU and GPU. This will
be addressed separately.
Differential Revision: https://developer.blender.org/D12954
