In order to speedup compilation, we upgrade IGC to 1.0.14828.26 along
with ocloc and the associated dependencies.
We also bump min-driver version accordingly to 26918.
Ref !114341
This PR adds tunings for the [newly announced](https://www.youtube.com/watch?v=ctkW3V0Mh-k) M3 family of chips. In particular, MetalRT will be enabled as the automatic default for intersection testing on M3 and beyond to take advantage of hardware raytracing. This will result in significant path-tracing speedups, as well as faster BVH builds.
Pull Request: https://projects.blender.org/blender/blender/pulls/114296
The last good commit was 8474716abb.
After this commits from main were pushed to blender-v4.0-release. These are
being reverted.
Commits a4880576dc from to b26f176d1a that happend afterwards were meant for
4.0, and their contents is preserved.
_(NOTE: This is a clone of [PR 114067](https://projects.blender.org/blender/blender/pulls/114067), but targeting `blender-v4.0-release` as originally intended)_
This PR removes the "experimental" disclaimer from the MetalRT control now that the unit tests all render correctly with it enabled. As well as "Off" and "On", this adds a third "Auto" setting - a new default which can be used to pick the best option.
Pull Request: https://projects.blender.org/blender/blender/pulls/114232
This fixes an issue where animation frames occasionally get corrupted (e.g. when rendering "Pokedstudio" Blender 2.77 splash screen). This happens when the KernelData is refreshed but the MD5 isn't immediately regenerated which can cause the wrong PSO to be selected.
Pull Request: https://projects.blender.org/blender/blender/pulls/114153
This PR adds `@autoreleasepool` blocks around functions that have been observed to create hidden temporary NSObjects, and eventually cause command buffer failures. A couple of allocations needed to be tweaked in order to maintain correct retain/release behaviour. This PR also fixes the command buffer error text to show more useful information.
This PR removes the "experimental" disclaimer from the MetalRT control now that the unit tests all render correctly with it enabled. As well as "Off" and "On", this adds a third "Auto" setting - a new default which can be used to pick the best option.
Pull Request: https://projects.blender.org/blender/blender/pulls/114067
The increased amount of BSDF code from Principled BSDF v2 and the
microfacet BSDF led to a big performance regression on Metal and AMD.
We have not been able to find a good workaround for all scenes.
This change disables the Principled Hair BSDF code when it is not used
in the scene. This makes common benchmark scenes faster, but
performance is still bad in scenes that do use it.
Ref #112596
Pull Request: https://projects.blender.org/blender/blender/pulls/113904
The first public Windows driver version with a higher number is
101.4824, so we bump the min-required driver version on Windows to this
one to ensure compatibility.
<algorithm> header include is missing from some sycl headers, this will
be fixed upstream with https://github.com/intel/llvm/pull/10424,
meanwhile, we work around it by including it directly.
This PR fixes T39823, the sole failing unit test when running with MetalRT. It does so by implementing and binding a missing intersection handler (`__anyhit__cycles_metalrt_volume_test_tri`) which is required for `scene_intersect_volume` (as used by `integrator_volume_stack_update_for_subsurface`) to work as intended. This scene exposed the error as it uses subsurface scattering on a sphere which is intersected by volume.
Pull Request: https://projects.blender.org/blender/blender/pulls/112876
This patch adds `BVHMetalBuildThrottler` which limits the amount of Metal BVH building work that runs concurrently on the GPU. Previously we submitted BVH build requests to the GPU as fast as possible, but in extreme cases this could fail when the device's working set size passes safe limits.
Pull Request: https://projects.blender.org/blender/blender/pulls/112821
This patch fixes the memory leak described in #107714 by adding an `@autoreleasepool` around Metal BVH builds. Certain NSObjects were being retained indefinitely, specifically ones which had been value-passed via an NSArray into acceleration structure descriptors.
Pull Request: https://projects.blender.org/blender/blender/pulls/112820
This patch adds a check to see whether we're actually using NanoVDB textures, and if not, removes `#define WITH_NANOVDB` when generating the scene-optimised kernels. This results in marginally faster render times (maybe 2 or 3%) for scenes that do not use NanoVDB. The generic kernels are unaffected, so this will not impact responsiveness on first render.
Pull Request: https://projects.blender.org/blender/blender/pulls/112822
This patch updates the experimental MetalRT code path to use new [curve primitives](https://developer.apple.com/videos/play/wwdc2023/10128/) which were recently added in macOS 14. This replaces the previous custom box intersection implementation, allowing the driver to better optimise curve acceleration structures for the GPU. On existing hardware, this can speed up MetalRT renders by up to 40% for scenes that use hair / curve primitives extensively.
The MetalRT option will only be available on macOS >= 14, and requires Xcode >= 15 to build (otherwise the option will be compiled out).
Authored by Marco Giordano, Michael Jones, and Jason Fielder
---
Before / after render times (M1 Max MacBook Pro, macOS 14 beta, MetalRT enabled):
```
Custom box intersection MetalRT curve primitives Speedup
fishy_cat 111.5 80.5 1.39
koro 114.4 86.7 1.32
sinosauropteryx 291.8 279.2 1.05
spring 142.3 142.2 1.00
victor 442.7 347.7 1.27
```
---
Pull Request: https://projects.blender.org/blender/blender/pulls/111795
Recent versions of DPC++ dropped using the environment variable
SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE_FOR_IN_ORDER_QUEUE=0 we were setting.
We're now also setting SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE=0 by default
to keep a consistent behavior.
In the commonly used cycles headers, it's enough to include
much smaller <iosfwd> than the full <iostream>. While looking at it,
removed inclusion of some other headers from commonly used headers,
that seemed to not be needed.
Pull Request: https://projects.blender.org/blender/blender/pulls/111063
During recent testing, the oldest 101.4032 (windows) and <25812 (linux)
drivers led to crashes during JIT compilation, so we bump the
requirement to newer 101.4313 and 25812.14 drivers that do incorporate
the required fixes.
Pull Request: https://projects.blender.org/blender/blender/pulls/109281
Better to disable than crashing, as we are not expecting a quick fix. The cause
is likely similar to issues with the light tree, which was already disabled.
Ref #104013
