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Der Rechner by npli
[nfo]
screenshot added by akole on 2013-08-04 22:04:22
platform :
type :
release date : august 2013
release party : Assembly 2013
compo : wild demo
ranked : 3rd
  • rulez 12
  • is ok 5
  • sucks 3
popularity : 0%
 0%
  • rulez 0.45
alltime top: #10398
added on the 2013-08-04 22:04:22 by akole akole

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rulez added on the 2013-08-04 22:21:33 by moqui moqui
Mighty good
rulez added on the 2013-08-04 22:30:26 by Negrostrike Negrostrike
quite dull. i liked the scene in the screenshot tho!
sucks added on the 2013-08-04 23:29:35 by Maali Maali
The "music" sounded like continuous farting. It distracted me from appreciating the visuals. The wireframe models were hard to see. Perhaps double thick lines? Pig until the music gets removed or fixed.
awful presentation of little new or interesting
sucks added on the 2013-08-04 23:40:21 by noby noby
i liked it on the stream (=
rulez added on the 2013-08-05 06:18:50 by sensenstahl sensenstahl
twisters!
rulez added on the 2013-08-05 08:34:45 by las las
That was actually more demo like than first two prods.
rulez added on the 2013-08-05 10:18:55 by Optimus Optimus
:|
added on the 2013-08-05 17:25:28 by provod provod
Amusing to see TI-68k demos in this day and age :)
Motivational thumb for the effort. You should keep making more demos for that platform ;)

Several ideas for improvement of this particular demo:
* either saving the contents of the screen at the beginning of the program and restoring them at the end (< 50 bytes, see the startup code of the GCC4TI library), or redrawing them entirely through the Home Screen Restore method (by Greg Dietsche, less than 120 bytes) - failure to do either is considered user-unfriendly ;)
* alleviating the difficulty of seeing wireframe models, mentioned by Luis above, by temporarily changing the contrast;
* using a less repetitive music with more chans ?
* using double-buffering and synchronization with the LCD refresh, in case you haven't already ? There's no obvious tearing in the video, but in TIEmu, most programs don't flicker the way this one does in some parts. TIEmu's grayscale emulation is known to be both complicated and imperfect, but still.
rulez added on the 2013-08-05 21:22:14 by debrouxl debrouxl
Thanks for all the comments. I thought that I should clarify some things here because I coded this thing.
For those who don't know, this device doesn't have any kind of sound device. However, you can use device's i/o port to produce sound but the result is like having a PC demo with a PC speaker soundtrack. As far as I know there hasn't been any TI demos with a full soundtrack so we thought it would be nice to make one. Of course there's always room for improvement and I wasn't entirely happy with the result, e.g. the final sync is not what I had in my mind. The audio was produced by using polysnd2 library by Geoffrey Anneheim so I can't take credit for the technical part.

The entirely demo was coded in motorola 68k assembly and A68k is an assembler for m68k (for those who wondered).

debrouxl:

I know that not saving the home screen isn't very user friendly but we were using quite a lot of RAM already so I just took an easy way here. Sorry about that. You can restore the screen content by toggling the F5 button after the demo ends.
Those wireframe models were quite hard to see on the screen/video capture but the result is not that bad when watching on a real device. In retrospect I should have used double thick lines or something as suggested.
polysnd2 is limited to 2 channels so it probably would have required a lot of extra work to get more channels. However, I agree with that repetitive part.
We are using double buffering. I stated in the nfo that you shouldn't use an emulator because the demo is not going to work well (terrible tearing, jerky graphics and no music at all). I don't know what's causing all those graphics problems on the emulator but I didn't really care because everything worked very smoothly on the real device. You can always watch the video instead even though all the colors are really monotonic on the video.


added on the 2013-08-05 23:13:41 by tvs tvs
For the platform.
rulez added on the 2013-08-06 02:14:06 by Xyl2k Xyl2k
I know the screen can be (mostly) restored by using F5 and e.g. MODE - but still :)
For the next demo (or a final version of this one):
* the GCC4TI SAVE_SCREEN support occurs on the ~15 KB stack, ~13 KB of which are usable in user programs;
* even if you had to save the screen in the heap, this program does not come close to exhausting all available RAM;
* when both stack and heap are really tight, saving/restoring is moot with the small HSR code I mentioned earlier.

TIEmu does emulate sound if you activate the appropriate mode, it defaults to listening for files as it's clearly a more common use case than emulating sound. But as you mentioned (I had seen the note in the nfo), grayscale looks ugly in TIEmu. Grayscale looks better in the old VTI, but that has no kind of accurate sound emulation.

Besides watching the video, I could run the code on my real TI-68k calculators, I have enough of those ^^

Finally, I don't recognize your nickname... do you attend the open development community's message boards (Omnimaga, Cemetech, TI-Planet) ? If you don't, you should :)
added on the 2013-08-06 07:41:37 by debrouxl debrouxl
Version 1.1 (or something like that). Those wireframe models should be much clearer now and the demo will save and restore your home screen. There probably won't be any specific final release because that would require a lot of redesigning and I really don't have time for that right now.

debrouxl:

I'm not on any of those boards but I consider joining if I'm going to work on some TI related project again :)
added on the 2013-08-06 17:17:45 by tvs tvs
this should be generations ahead of the z80 based TI-Demos but somehow I feel like it isnt.
Anyway, I enjoyed it so have your thumb :)
rulez added on the 2013-08-06 19:32:38 by wysiwtf wysiwtf
I don't really care about the home screen and stuff, it's a demo and not a business application, but even if the effects are kind of solid and so on, I'd really want to see something that I haven't seen literally a thousand times before.
added on the 2013-08-07 20:21:21 by Preacher Preacher
what debrouxl said!
rulez added on the 2013-08-08 15:07:53 by baah baah
Like it !
rulez added on the 2013-08-14 00:34:07 by Chainsaw Chainsaw
There aren't that many demos for the Titanium, and this is the calculator I happen to use, so thumbs up are in order! I'd give you one extra thumb for the sound, but I only have one thumb to give.
rulez added on the 2013-08-16 22:23:17 by Morden Morden
good effects but HORRIBLE music. result : piggy.
added on the 2013-08-18 11:28:50 by Tigrou Tigrou
for the plattform
rulez added on the 2013-09-15 20:40:01 by decca decca

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