Live data from Hacker News

Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

apple.com

211–220 of 271 posts

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#211
post #162

I thought this was going to be some sort of US Dollar-based stable coin. Interesting naming.

Pixar started work on the Universal Scene Descriptor format in 2012. [0] Larimer theorized bitUSD in 2013. [1] [0] https://openusd.org/release/intro.html#heritage-of-usd-at-pi... [1] https://www.steem.center/index.php?title=BitShares:Proposal_...

I find that my confusion primarily arises from the utilization of "USD", an abbreviation denoting the United States Dollar which exists since 1792 :)

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#212
post #36

Seen Autodesk here, which might - or might not - mean that the standard is also applicable for 3D engineering artifacts. However I see no explicit mention of this in the article by the link. Can this standard be well used for, say, designing a model for a 3D printer?

Autodesk is huge in ’visual’ pipelines that are not directly related to engineering. Maya etc.

This is very litle about manufacturing, except you can of course always convert a model to 3D mesh for visualization etc. That is quite common, and in that workflow usd is as good as any other ’mesh plus material’ format.

The output of engineering design software usually is: 1) Shop drawings for building the whole thing or sub-assembly 2) CNC machine compatible presentation 3) 3D meshes for visualization 4) conversion to some other engineering format

You can always more or less export a 3D mesh, wich can then be 3D printed. So - printing, yes. But adds nothing to any other visua format in that workflow (stl,obj,…).

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#213

My only question, why aren't they using gltf? What is the issue with gltf? It supports most of the things?

Quoting from the the USD homepage:

"Well-known file formats for interchange in the VFX industry like OBJ, FBX, and Alembic primarily deal with interchanging flat/cached geometry, with no facility for assembling assets or editing the data directly. USD does serve the role of an “interchange file format,” more comprehensively than previous public efforts, because it already interchanges not only geometry, but also shading/materials, lights, rendering, linear-blend skinning and blend-shape animation, rigid body physics, and is extensible along numerous axes."

Basically, glft is primarily designed for sharing individual 3D geometry, while USD is designed for sharing whole 3D scenes and is designed in a way that lots of different departments can collaborate on different parts of the same scene at the same time.

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#214

Can someone ELI5 how this is different from glTF? What information does the OpenUSD format carry?

Quoting from the USD homepage:

"Well-known file formats for interchange in the VFX industry like OBJ, FBX, and Alembic primarily deal with interchanging flat/cached geometry, with no facility for assembling assets or editing the data directly. USD does serve the role of an “interchange file format,” more comprehensively than previous public efforts, because it already interchanges not only geometry, but also shading/materials, lights, rendering, linear-blend skinning and blend-shape animation, rigid body physics, and is extensible along numerous axes."

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#216
post #11

This is a big deal. I used to work at Autodesk, trying to build software that made 3D blueprints available to everyone, everywhere. Rendering things on mobile is hard, in part because you need to writer bespoke renderers, and in part because the data formats for the assets are not aligned. Pixar developed USD, and it should really help to standardize 3D tech. In particular, I hope that USD can help make it easier to…

Can I open an OpenUSD file in a text editor and read it?

Yeah, sounds kind of like the old Renderman RIB files. Does Renderman still use RIB files?

I've been so out of the loop it's insane. I learned not long ago they no longer use the original Renderman Shading Language.

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#218
post #162

I thought this was going to be some sort of US Dollar-based stable coin. Interesting naming.

Pixar started work on the Universal Scene Descriptor format in 2012. [0] Larimer theorized bitUSD in 2013. [1] [0] https://openusd.org/release/intro.html#heritage-of-usd-at-pi... [1] https://www.steem.center/index.php?title=BitShares:Proposal_...

I remember when Jobs was introducing later version of Next he was asked about lack of OpenGL support and replied that Next will use Pixar developed scene description 'something' (already had some early shaders, maybe used by renderman?). You could say Pixar has been preparing for this for almost 40 years :)

there it is https://allaboutstevejobs.com/videos/misc/nextstep_3_demo_19...

"one of the other things that we've done with NeXTSTEP release 3.0 is we've actually built in some three dimensional graphics. We have built in Pixar's RenderMan photorealistic rendering software, which can produce the most photorealistic rendered images from 3D models. In addition to that, we've built in some real time 3D graphics, interactive RenderMan. We've taken photorealistic RenderMan and made a version that will run interactively on the screen."

OpenUSD is Steve Jobs laughing from the grave, once again he got his way.

Re: Pixar, Adobe, Apple, Autodesk, and Nvidia form alliance for OpenUSD

#219
post #20

Stub for arguing about what "USD" means. These comments were originally at the top level but the offtopicness was choking the thread so I'm moving them here. I left https://news.ycombinator.com/item?id=36962294 out because it has actual interesting information about the project.

Yes i'd like to complain. But then Apple is involved, and they don't test their devices outside a California air conditioned and dust free office anyway. Why would they test their names...

USD is the US Dollar currency everywhere. Even americans who have dabbled with forex know. Apparently though, no one in the management of 5 large american tech companies.

Will they sue every currency exchange shop in the world for using their acronym?

Edit: and how are they going to make their format popular when all search engines are just going to give them the currency converter pages?

Post reply on HN