Mesh shaders on RDNA graphics cards

https://gpuopen.com/learn/mesh_shaders/mesh_shaders-index/

by ibobev • 3 years ago

44 28 3 years ago

sylware• 3 years ago

Could we get assembly or spir-v BHV shaders? Please? To avoid to pull that abomination of glsl compiler in mesa SDK? Thanks.

Lichtso• 3 years ago

we find that the technology has not been widely adopted in rendering engines so far

That is funny considering that Vulkan has added support for mesh shading roughly a year ago [1]. And, if you take a look at the members list of the Khronos group, you will find that AMD is listed in the top category [2] (what ever Ikea is doing there).

[1] https://www.khronos.org/blog/mesh-shading-for-vulkan [2]: https://www.khronos.org/members/list

SiempreViernes2• 3 years ago

IKEA wants to render a lot of its product illustrations instead of having huge photo studios, that's probably why they are active in computer graphics.

badgersnake• 3 years ago

Yep, they want to use VR and AR to sell furniture. I’ve heard far worse metaverse ideas than that.

seiferteric• 3 years ago

It's cheaper to create a 3D model of every product than to just take a picture of it?

kapperchino• 3 years ago

Alan wake 2 pretty much requires it too

pjmlp5• 3 years ago

So far they have only been having good support on the engines targeting DirectX 12 Ultimate, as usual Khronos APIs keep getting later to the party.

IKEA most likely cares about WebGL and WebGPU, which in any case is irrelvant for Mesh Shaders as they are decades away to arrive in the browsers if past performance is any indication of Web 3D adopting native 3D features.

hajile• 3 years ago

The big issue with adding features was mostly security (as I understand it). Then they realized that they were never going to achieve good performance with WebGL and Apple proposed porting Metal to the web as webGPU.

There doesn't seem to be anything inherently insecure about mesh shaders and they now have working examples in both Vulkan and Metal, so I'd expect them to show up sooner rather than later.

RetpolineDrama• 3 years ago

Vulkan only getting a mesh shader API a year ago when Nvidia shipped hardware in 2018 is a joke.

I want Vulkan to be great, but it's painfully obvious it's behind.

samus2• 3 years ago

Khronos is inherently unable to be ahead since it is a consortium of vendors with stakes in computer graphics. Khronos APIs are standardizations and/or abstractions on top of the platform-specific APIs, and new APIs and features usually start out as vendor extensions. They get standardized only when they get stabilized and adopted by other vendors.

This is exactly what happened with mesh shaders - nVidia shipped the first hardware, but the extensions could rightfully not be uplifted to a standard API before other vendors also delivered implementations, as that could inconvenience their efforts.

pjmlp5• 3 years ago

Don't hold your breath regarding Direct Storage like capabilities, or work graphs.

It has been the same following DirectX lead, from GPU vendors collaboration with Microsoft, and extensions spaghetti as OpenGL.

Additionally it seems GLSL is stagnant, and from 2023's panel the suggestion was to adopt HLSL instead as there is no budget for language research.

wlesieutre2• 3 years ago

Nearly 10 years ago Ikea was rendering 75% of their product images, I'm sure it's even higher by now

http://web.archive.org/web/20140627040243/http://www.cgsocie...

Also, RIP CGSociety. Just went looking for that article and found they shut down earlier this month.

Zetobal• 3 years ago

It's 100% for the cutouts and 80% for the "emotional" motifs. We still shoot but mainly for images with human interactions.

Mesh shaders on RDNA graphics cards

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