Show HN: WebGL-powered oscilloscope emulator

http://m1el.github.io/woscope/

by m1el • 11 years ago

42 16 11 years ago

m1el.github.io

jkleiser• 11 years ago

I like it, but I would prefer a plain oscilloscope function, and being able to connect it to a Web Audio source of mine.

m1el5• 11 years ago

Maybe I'll try doing that this weekend.

kepakko• 11 years ago

Uncaught TypeError: Cannot read property 'clearColor' of null

m1el5• 11 years ago

You don't have webgl, duh.

Udo3• 11 years ago

I'm not sure "duh" is the right response here.

supercoder• 11 years ago

SyntaxError: Unexpected use of reserved word 'let' in strict mode

Udo3• 11 years ago

Are you on Firefox by chance? I discovered this week that Firefox doesn't do ES6 on included <script> files unless you specify an explicit content type enabling it (which in turn breaks things on all other browsers).

m1el5• 11 years ago

It should work in Firefox, there is a workaround specifically for that.

virgil_disgr4ce• 11 years ago

Nice, I assume this is XY-mode by stereo channel. I did a little writeup here: http://cookingwithsound.com/an-xy-mode-oscilloscope-in-your-...

If you want to get in touch, I'd love to add more detail about how the code works :)

m1el5• 11 years ago

I am planning to do a writeup on the core algorithm myself.

But in a few words: linear algebra and integrals.

*Edit

hughes• 11 years ago

That was one of the highest-fidelity visual experiences I've had on the web. I know there's no more information being displayed than what's in the audio channel, but I feel like this sort of experience just wouldn't translate well to any current video encoding, even at enormous file sizes.

Thanks for building this and for sharing!

m1el5• 11 years ago

You're very welcome.

leetbulb• 11 years ago

khrậng. amazing.

phkahler• 11 years ago

That could be an awesome previewer for .ild files (Laser Show stuff). The OpenLase and VectorBoy projects might like to hear from you.

It would may also be really nice for rendering the old vector games in MAME - I have a Cinematronics emulator that can run about 13 vector games too, mostly black and white.

thrownaway2424• 11 years ago

It says I don't have webgl, but chrome://gpu says "WebGL: Hardware accelerated". Not the first time I've run into this.

Show HN: WebGL-powered oscilloscope emulator

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