Codex crunched through August Steam HW survey results with latest driver info from Vulkan HW database. NoGraphicsAPI support = 71.62% of Steam gamers. Assuming I add a GPU pointer -> buffer+index pair mapping fallback for draw/copy commands. github.com/sebbbi/NoGraphics…

GitHub - sebbbi/NoGraphicsAPI: Minimal graphics API. Built on top of latest Vulkan extensions. As...

Minimal graphics API. Built on top of latest Vulkan extensions. As close as possibly to my "No Graphics API" blog post and the SIGGRAPH talk. - sebbbi/NoGraphicsAPI

github.com
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Yeah a fallback would be great - what about something I did here in the dx12 port: github.com/jazzbre/NoGraphic…
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How did you implement the root struct and GPU pointers? Slang doesn't support GPU pointers for DX12.
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Like this: github.com/jazzbre/NoGraphic…

NoGraphicsAPI/utility/include/NoGraphicsAPIUtility/shader_platform.h at d3d12-backend · jazzbre/N...

Minimal graphics API. Built on top of latest Vulkan extensions. As close as possibly to my "No Graphics API" blog post and the SIGGRAPH talk. - jazzbre/NoGraphicsAPI

github.com
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You have to use NGA_ROOT define and GpuPtr for all the pointers used in there.
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Yeah. That works. I was toying with a similar idea but with 32/32-bit split. 16/48 split seems better. Those macros are a bit hacky, but they do their job. It is a workable approach. But it doesn't support real pointer arithmetic in the shader.
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Replying to @amjazzbre
Also it only seems to support writing the whole struct. Writing a single field is a common requirement. Compiler can likely optimize single field read (dead code eliminate rest), but I don't think it can do that for writes.

Sep 23, 2026 · 8:57 AM UTC

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Replying to @SebAaltonen
Yes it's not perfect - but it's still much better than how we write shaders nowadays. I don't know how this maps (if at all) to other graphics apis such as metal though.
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Metal and CUDA have native pointer support. Slang supports Metal pointers directly. No hacks. No BDA extension. Just works out of the box.
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