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Comment by a1o | Hacker News Reader

> We did our best job here leaning heavily on the resource system. There's stuff I want to say about the result that's platform specific so I can't. We have a thing, it works, and it could be a lot better.

Literally the only part I wanted to get more information about.

I could use a lot more information on why POSIX is bad and exactly what it means on resource management being “aware” of unified memory. I mostly didn’t get.

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Game consoles aren't UNIX, and the way file system access works has to take into account the specialised hardware.

Like for example, streaming textures from CD with cache directly into the rendering pipeline.

Example for PC, however it was inspired how modern consoles work

https://developer.nvidia.com/rtx-io

Looking at the example graphics in the OP post I would not think something as specific as the rtx-io matter, I thought it was something more conceptually general that could be applied everywhere without tie to a specific vendor.

The specific vendor is PlayStation hardware, and the more general concept modern 3D rendering engines architecture.

Orbis OS might be a FreeBSD fork, but there is very little UNIX on PlayStation games.

Similarly to how little there is on Apple and Google platforms, regardless of the underlying infrastructure, where doing POSIX file IO is equally inconvenient.

It appears this stuff is highly guarded under NDA and not available for anyone, I read the homebrew version (https://github.com/OpenOrbis/OpenOrbis-PS4-Toolchain), the SDL2 port and the other stuff and honestly didn’t find anything much interesting, or that makes any difference. Unless you have something properly as documentation to show I don’t think it is reasonable to expect anyone in an open source engine to care about whatever this “special” thing you mention is.

I also have NDAs from PS2 and Wii days, back when I had a foot into trying to make games, and got access when SCEE still existed with PS2Linux, and Nintendo was still giving away access to indies.

Now, this whole discussion is kind of needless, given that she explains the issues on the article.

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