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Source code for 4kb demoscene production “Elevated” released

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Re: Source code for 4kb demoscene production “Elevated” released

#91

Post by twic »

polard2 wrote: post #54

Here's their release of how they made it as well. Super interesting read. It's shaders all the way down. http://www.iquilezles.org/www/material/function2009/function...

Complete with creative tensions:

> With cinematic look, like taken with a real camera. We had some dissagreements here

> • I absolutelly wanted to avoid the CG look - the danish part of the team wanted something sharp and shinny

> • I wanted a hand-held TV camera - they wanted a sts04 like smooth lovely cameras

> • I wanted a realistic scenery - they wanted more action in the scene..

And exploiting impressionism as a compression technique:

> The idea is NOT to render perfect snow, but to draw something that evoques snow, and let the viewer’s brain to trick the viewer.

Re: Source code for 4kb demoscene production “Elevated” released

#92

Post by sp332 »

recursive wrote: post #56
aab0 wrote: post #40

Earlier quoted context omitted.

"39. Re graphics: A picture is worth 10K words - but only those to describe the picture. Hardly any sets of 10K words can be adequately described with pictures." It's the pigeonhole principle; there are only a few long videos possibly encodable as short programs because there are only a few short programs in the first place. To get compression performance, one has to target an ever smaller subset of possible videos,…

> It's the pigeonhole principle Is it really? Could a human meaningfully distinguish between 2^4096 different 4 minute videos?

Sure. 2^4096 is 10^1233. Let's just look at dialogue. Even if you limit yourself to boring 5-word sentences with 2,000 possible words for each position (subject verb preposition adjective object), 5^2000 = 8.7 * 10^1397 which means in the very first sentence you've got 10^164 times as many videos as you could possibly index with only 4096 bits.

Re: Source code for 4kb demoscene production “Elevated” released

#93

Post by corysama »

yxlx wrote: post #82
corysama wrote: post #35

Earlier quoted context omitted.

Here's what he's been up to lately: http://mygtc.gputechconf.com/quicklink/esLu6kr

Will an online recording be available of that talk? I'd love to watch it.

Officially, I think the videos from GTC2016 are behind a free registration wall. You can register here: https://mygtc.gputechconf.com/form/account

Unofficially, you can find this particular talk here: http://on-demand.gputechconf.com/gtc/2016/video/S6860.html

Re: Source code for 4kb demoscene production “Elevated” released

#94

Post by jameshart »

tikhonj wrote: post #87
joaorj wrote: post #31

Does this mean that lots of 3:30 minutes 1080p videos could be compressed into 4kb? EDIT: We can be generous and say 40kb for sake of adding more colours / etc.

This is actually an insightful question. The practical answer is no . There is an unimaginable amount of possible 3:30 minute vidoes—far more than the number of possible 4kb or even 40kb files. To be fair, most of those possible vidoes are just noise. We don't have to be able to compress those because people don't care if one video of noise is different from another. We also don't have to reconstruct the video perfec…

4K of English text is a couple of pages of a novel, enough to describe a character and a situation, maybe an interaction. A good writer can conjure up a whole world in 4K... but probably not a description of an arbitrary 3 and a half minutes of activity.

Re: Source code for 4kb demoscene production “Elevated” released

#95

Post by corysama »

j1vms wrote: post #85
passthefist wrote: post #78

Earlier quoted context omitted.

Ha, that's my exact comment from the related reddit thread. Kinda cool, I wonder how often that happens? https://www.reddit.com/r/programming/comments/4msf41/elevate...

And that indeed is what we have to look forward to in online forums over the next 5+ years, as machine learning cuts its teeth on places like reddit, HN & disqus, and spammers try to find new irritating ways of getting eyeballs.

I'm not a fan of quoting XKCD, but... https://xkcd.com/810/

Re: Source code for 4kb demoscene production “Elevated” released

#96

Post by dharma1 »

classic 4k, beautiful stuff. here's another one of my favourites from 5 years ago:

zeo-x-s/cdak

https://vimeo.com/25284552

http://prostheticknowledge.tumblr.com/post/73734927255/cdak-...

Beautiful soundtrack from Lassi Nikko (tpolm/orange) and crazy cool raymarching shader work from unc (quite)

shadertoy version with VR support:

https://www.shadertoy.com/view/MdyGzD

Re: Source code for 4kb demoscene production “Elevated” released

#97

Post by wolfd »

imtringued wrote: post #55
adamnemecek wrote: post #4

Earlier quoted context omitted.

The 4kb restriction isn't there to make it run on weak hw, it's there to push people.

However it does irritate me that it's pregenerating the entire scene in memory. Being allowed to use 300MB of RAM doesn't strike me as very limiting.

You wanted optimized code size and optimized performance?

I mean, sure, but think about how big 4KB is, the tricks that are being used to create the scenes are crazy hacks using default Windows sound files and literally anything the executable can reference on the cheap.

Procedural content generation is really expensive (in general), but that's the beauty of it. You find a way to abstract the content into an algorithm, and then you can reduce the size of the assets, but you pretty much always need to pay the price somewhere.

But hey, I understand the sentiment, I wish Slack didn't consume 2 GB of RAM on my machine.

Re: Source code for 4kb demoscene production “Elevated” released

#98

Post by relaytheurgency »

DanBC wrote: post #88
toxik wrote: post #81

Earlier quoted context omitted.

You do realize he copied your comment, don't you?

That's been happening a bit recently. https://news.ycombinator.com/item?id=11837687 (I think there are others, but I can't find them now.)

Both usernames end in 2

Re: Source code for 4kb demoscene production “Elevated” released

#100

Post by leeoniya »

nickpsecurity wrote: post #84
leeoniya wrote: post #33

also impressive: https://en.wikipedia.org/wiki/.kkrieger

First one I saw and part of how I mentally judge the rest. Amazing work.

here's a great read about how it was made by one of the members: https://fgiesen.wordpress.com/2012/04/08/metaprogramming-for...

i've submitted it previously: https://news.ycombinator.com/item?id=7739599

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