Vulkan Portability Update - January 2021 - Khronos Group
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Vulkan
Portability
Update
January 2021
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 1
Open-Source Layering Projects
Fighting Platform Fragmentation
Layers
Over Vulkan OpenGL OpenCL OpenGL ES DX12 DX9-11
vkd3d-Proton Vulkan as
clspv Angle DXVK
Vulkan Zink clvk GLOVE vkd3d WineD3D
porting target for
multiple APIs
gfx-portability
OpenGL Ashes Angle WineD3D
Microsoft Microsoft Microsoft ROWS:
DX12 gfx-portability
‘GLOn12’ ‘CLOn12’ D3D11On12 Bring more APIs
to Platforms
gfx-portability
DX9-11 Ashes Angle
MoltenVK clspv + MoltenGL
Metal gfx-portability SPIRV-Cross? Angle
Vulkan functionality COLUMNS: Making APIs
available everywhere
available across platforms
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 2
Vulkan Portability
Multiple Implementations of
Layered Vulkan Functionality
TODAY Enable Vulkan applications on diverse
platforms and APIs +more!
Khronos Portability Extension
Portable queries for what functionality is
available through Vulkan layering
Extended Vulkan Conformance Tests
Open-source tools, SDKs Gracefully handle partial functionality to enable Vulkan
and libraries bring Vulkan Portability conformance - what is present must work!
applications to Apple
platforms over Metal
Enhanced Vulkan Layers and Tools
DevSim/Validation Layers flag or simulate queries
for features that are not present
Fighting fragmentation by enabling Vulkan applications on platforms without native drivers
through layered implementations of Vulkan functionality over Metal, DX12 and other APIs
https://github.com/KhronosGroup/Vulkan-Portability
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 3
Vulkan Portability Development on Apple
Config Files
hand-coded or
Applications generated using
vulkaninfo utility
DevSim JSON
Vulkan SDK Config files
Running on macOS Database gpuinfo.org
SPIRV-Cross Vulkan Configurator:
Defines available
functionality on a
Export Public Database
Open-source disassembler DevSim config file selection target device. Available Vulkan functionality
Converts SPIR-V shaders to DevSim Layer: simulates queries for Pre-populated per GPU/Driver/Layer/OS.
Metal Shading Language selected target system subset in SDK List of entries containing
Validation Layer: flags incorrect usage of Vulkan Portability data
available functionality
Database
Upload
Hardware Capability Viewer
(for macOS, iOS soon)
Run-time application now includes interrogation
of Vulkan Portability Extension to discover
available features of layered implementations
macOS / iOS / tvOS Enhanced Vulkan SDK,
Vulkan to Metal API Mapping Layer Layers and Tools
Vulkan Portability Extension Streamlines application development for
Portable run-time queries for available
functionality on the current system Apple devices. Universal Binaries supported
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 4
Example Vulkan Portability Implementations
Baseline Vulkan 1.1 with
Vulkan 1.0 with extensions
Vulkan Version Vulkan 1.2 in development
Metal on macOS and iOS (in Beta)
API/Platforms Metal on macOS. iOS, tvOS DirectX 12 (in development)
and Mac Catalyst (Shipping) UWP platforms such as Windows 10 S, Polaris, Xbox.
Supported macOS 10.11 / iOS 9.0 and up GPUs without native drivers e.g., Intel Haswell/Broadwell
OpenGL (ES)/D3D11 (in development)
Implementor Community and Brenwill Workshop Community and Mozilla
Licensing Royalty-free Apache 2.0 Royalty-free Apache 2.0 / MIT
Used by multiple production
Notes applications on Mac and iPhone
Implemented using Rust Language
https://github.com/gfx-rs/gfx
More https://github.com/KhronosGroup/MoltenVK https://github.com/gfx-rs/portability
Information https://github.com/gfx-rs/portability/releases
Example beta and prototype implementations that are expected to be Vulkan Portability conformant once the
Vulkan Portability Extension and conformance tests are complete
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 5
Vulkan Portability Timelines
Upcoming Deliverables
Finalized Conformance Tests
Portability Extension 1.0
MoltenVK released
in open source for
macOS and iOS
MoltenVK 1.1 ships
Vulkan CTS with support for Vulkan SDK Validation
ported to macOS Vulkan Portability Vulkan 1.1 features, Layers support
gfx-rs DX11 Provisional 48 Vulkan extensions, Portability Extension.
backend in alpha - Extension released Metal 3.0, Apple Vulkan Configurator
Vulkan CTS joins DX12 and and shipped in Silicon, Mac Catalyst manages DevSim and
ported to macOS Metal backends MoltenVK and gfx-rs and tvOS config files
GDC August September Fall January
2018 2018 2020 2020 2021
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 6Vulkan Apps on macOS and iOS using MoltenVK
“I was initially skeptical about the use of a Vulkan translation layer to Metal, but it
turns out MoltenVK enables applications using the real-time NAP Framework to run as
well on macOS as they do on Linux and Windows. This is something I'd like to highlight
and stress the importance of - without the portability of Vulkan we would have been
forced to implement a special Metal rendering backend just for macOS users,
something not doable for a relatively small company such as ours. Plus switching to
Vulkan dramatically improved render-times for Mac users.”
Coen Klosters, Lead Developer of NAP Framework and Technical Director at Naivi
Multiple iOS and
macOS apps shipping //rpcs3.net/
e.g., Forsaken RPCS3 PlayStation 3
Production Dota 2 on Remastered Emulator on macOS
macOS with up to
50% more perf than Crossover Windows
CodeWeavers and
Apple’s OpenGL compatibility layer
https://google.github.io/filament/ Square Enix ship Final
Fantasy XIV on macOS
//dolphin-emu.org/
First iOS Apps using Google Filament PBR Dolphin GameCube
MoltenVK ship Renderer on Mac and Wii Emulator
through app store working on macOS
https://www.napframework.com/
https://www.winehq.org/ Artifact ships on Underlords ships on Naivi ports NAP
//www.qt.io/blog/2018/05/30/vulkan-for-qt-on-macos
Initial ports of DX Steam for macOS - //diligentgraphics.com/diligent-engine/
Steam - first Valve real-time
Qt Running on macOS games in progress first Valve Vulkan- Diligent Engine Vulkan app on both performance
through MoltenVK using Vulkan on macOS only app on macOS runs on macOS macOS and iOS engine to macOS
June September November January June January
2018 2018 2018 2019 2019 2021
This work is licensed under a Creative Commons Attribution 4.0 International License © The Khronos® Group Inc. 2021 - Page 7Khronos-Related GitHub Projects
Vulkan-Docs
SPIRV-Cross
Ashes
https://star-history.t9t.io/#khronosgroup/moltenvk&khronosgroup/gltf&khronosgroup/vulkan-docs&khronosgroup/spirv-cross&gfx-rs/gfx&DragonJoker/Ashes
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