Re: Shaderc as a JS library

Good idea. Here:
http://kai.graphics/shaderc-demo/

On Thu, Oct 26, 2017, 5:20 AM Kirill Dmitrenko <dmikis@yandex-team.ru>
wrote:

> Can you create a static page somewhere (e.g., on GH itself) to test the
> library?
>
> 26.10.2017, 04:13, "Kai Ninomiya" <kainino@google.com>:
> > oops. wrong thread. reposting in the correct thread.
> >
> > With dev tools open I actually get much less variance in my results
> (maybe performance.now behaves differently).
> >
> > Now I'm getting 32-37 ms for "void main() {}" and 46-49 ms to compile
> the big shadertoy from earlier.
> >
> > On Wed, Oct 25, 2017 at 5:57 PM Kai Ninomiya <kainino@google.com> wrote:
> >> Maciej,
> >> Absolutely. These are on my to-do list, but they're harder to check and
> compare with native.
> >>
> >> I quickly measured the compile time itself (excluding loading, I don't
> know offhand how to measure that), and got about 85-140 ms for this tiny
> "main(){}" shader. I don't know how this compares with native.
> >>
> >> -Kai
> >>
> >> On Wed, Oct 25, 2017 at 5:34 PM Maciej Stachowiak <mjs@apple.com>
> wrote:
> >>>> On Oct 25, 2017, at 5:26 PM, Kai Ninomiya <kainino@google.com> wrote:
> >>>> Hey all,
> >>>>
> >>>> Yesterday I compiled shaderc into a JS library with the minimal entry
> points needed to compile GLSL to SPIRV inside a web application.
> >>>>
> >>>> <Screenshot from 2017-10-24 17-17-52.png>
> >>>>
> >>>> Source (But don't try to build this yet, it won't work - needs manual
> intervention during build).
> >>>>
> https://github.com/kainino0x/shaderc/commit/1035e488ac3dcf759d6017328abf20d1d39b672f
> >>>>
> >>>> kainino@kainino> du -b shaderc.*
> >>>> 176816  shaderc.js
> >>>> 45094   shaderc.js.gz
> >>>> 2007815 shaderc.wasm
> >>>> 589023  shaderc.wasm.gz
> >>>> So a total of 634,117 bytes between shaderc.js.gz and shaderc.wasm.gz.
> >>>>
> >>>> (built with emcc -Oz; js files are the wasm wrappers, not asm.js)
> >>>>
> >>>
> >>> Other interesting performance questions:
> >>>
> >>> - What's the runtime memory cost of loading or using these libraries?
> >>> - How long does it take to transpile a typical shader?
>
>
> --
> Kirill Dmitrenko
> Yandex Maps Team
>