Fan-tastic 4kb Realtime Animation by Alcatraz & Rebels

[kernv0llig]

Is the code available somewhere? I participate on a hackerspace community here in brazil and we are working on demos ourselves, it would be very nice and helpful to study this code. thanks in advance. and many kudos for this pretty work of art!

[beingatliberty]

to put this 4kb demo scene size in context for non techies, this demo was effectively written with a program using only 4096 individual keyboard characters 40 lines of code using 100 letters each (disregarding compression techniques), the demo code could fit 360 times onto a floppy disk ! or a 175,000 times onto a CD

[Dark0Lord7]

@beingatliberty EXE files are stored as opcodes, not text. And demos like this are made in Assembly. It's actually ~455 x64 instructions(One opcode byte and 8 bytes for the 64-bt value), that make the CPU struggle to generate fractal Blinn models, calculate heightmap fluids and metaball particle meshes, over 60 times per second, all sent to the GPU that is relaxing and generating pixel by pixel.

[gunnaralv]

Just amazing!!!!!

[beingatliberty]

mindblowing considering what I could write on my 1kB ZX81 lol, is it in dos or windows ? does it rely in any way on available windows resources to pull this off ? the framebuffer alone would be bigger than 4kB ? presumeably the instruction to perform the animation is 4kB, cart manufacturers are to blame for muddying the water by popularising kilobit (kb) versus kilobyte (kB) confuses people even now. a kilobit is 1000 bits and a kiloByte is 8000 bits. 8 bits to a byte etc … yawn

[RafoCDBS]

@beingatliberty the program itself is 4KB. Doesn't mean it only needs 4KB of RAM. Of course it uses mush more, once music, samples, objects and textures are algorithmically created.

[gerryn2]

@beingatliberty Those are pretty different ways of measuring, as I understand it xbit pertains to the speed of information transfer, whereas xbyte pertains to the size of information

[beingatliberty]

@gerryn2 Bit based storage measurements as I stated earlier were used by cart makers to make cartridge storage capacities sound bigger sadly popularising the term Mbit to describe storage size in that arena, muddying the seperation between xbit for transfer and xbyte for storage size, so a cart maker claimed theres was the first xMbit cart inflating perceived storage by 8 ie 256Mbit cart sounded big but was in fact 32Megabytes in size, the largest carts for the N64 were marketed as 512Mbit etc.

[beingatliberty]

@gerryn2 ie ? 100mbit ethernet means you can move 10 Megabyte's per second, ie a 10 megabyte file on 100mb ethernet can theoretically be copied from one machine on a network to another, in practice you might get 6-8 megabytes a second with packet structure & overheads, drive speed, signal issues etc what counts to the user is actual megabytes per second transferred not theoretical maximums or xbit based measurements for transfer speeds.

[pym480]

@beingatliberty Well thats just wrong.

100mbit is 12,5MB, because there is 8bits to 1Byte

[beingatliberty]

@pym480 true that 100mbit might be capable of 12.5MB per second if your lucky and it hits theoretical maximum, with 1024k to a megabyte etc, but most often people will not get maximum speeds in practice, cable length dependent, certainly easier to get near to max speed on 100mbit, than it is on gigabit for instance which seems flaky to me after certain cable length.

[beingatliberty]

@gerryn2 mainly agree xbit should mainly refer to transfers speed, but it is also a pretty useless measurement for that since everyone has to learn byte sizes in their imagination due to it being a practical requisite in understanding filespace usage as a user, ethernet speeds where Mbit terminology is used, would in my opinion also be more practically described in "actually transferrable" Megabyte rates, as most headline theoretical max's are often not acheived in practice …

[beingatliberty]

@gerryn2 your adsl modem for instance might state its Mbps as 24 Mbps /24,000 Kbps speed, meaning in theory you can download around 2.4 Megabytes per second at maxiumum, but ADSL is truly an arena where Mbps is used a selling tool for transfer speed, by pulling you in with theoretical maximums, but the connection speed your modem actually gets and then the final transfer rate in megabytes you actually get between one ip and another rarely corrolate to the figure you are sold, due to many factors

[Microphallophobia]

Do i get this right: recorded from a programm that is just 4kbit in size? o.0

[NoqturnePL]

@Microphallophobia Yes :)

[NoqturnePL]

@NoqturnePL Ad.: It's actually 4 kiloBYTES not kilobits. Still impressive as fuck.

[sorichiro]

whats the name of the "song" ??? its amazing

[flamingwoodz]

@sorichiro I agree! It reminds me of Tangerine Dream.

[legom7]

If that is only 4KB, how long did it take to upload to youtube?

[iplop]

@legom7

The recording is more than 4kb. The data used to create the video is only 4kb.

Pretty much: assuming you have the correct environment, you could run the 4kb animation and watch it as your computer renders things.

[Ziddletwix]

holy shit... what the fuck

[thesparxinc]

4 fuckin kb! ... awesome!

[coolman562100]

fans and water?

[geezerbigfoot]

yeh more liquid cooling