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The Hollow by Darklite [web] & Offence [web]
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screenshot added by neon on 2019-07-14 03:51:43
platform :
type :
release date : july 2019
release party : Solskogen 2019
compo : oldskool demo
ranked : 1st
  • 56
  • 3
  • 0
popularity : 62%
 62%
  • 0.95
alltime top: #2618
added on the 2019-07-14 03:51:43 by neon neon

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Nice. This one was very cool in the videostream!
rulez added on the 2019-07-14 09:40:38 by ham ham
Didn't know this hardware, but watched the youtube video, it's quite cool
rulez added on the 2019-07-14 10:32:53 by Optimus Optimus
phet
rulez added on the 2019-07-14 11:31:31 by rudi rudi
Excellent - has all the things I like in a demo: Obscure 80ies 8-bit platform, cool effects nicely integrated with some awesome graphics!
rulez added on the 2019-07-14 12:46:02 by Sdw Sdw
what sdw said!
rulez added on the 2019-07-14 12:54:29 by Asato Asato
Really cool stuff in all departments!
rulez added on the 2019-07-14 13:16:05 by Korvkiosken Korvkiosken
aweseome in all aspects - style, gfx, pacing, music! Interesting machine as well :)
rulez added on the 2019-07-14 13:19:14 by v3nom v3nom
Beautiful work here, kudos. Enjoyed the music style, superb pixeling, and those effects, man those twisters were sexy, I don't know coderwise what the effect after the twisters is, that metablob thingy? But it looks amazing! Awesome!
rulez added on the 2019-07-14 13:41:12 by keito keito
Nice FXs!
rulez added on the 2019-07-14 14:03:57 by baah baah
This rules in so many ways. Even the HW (a norse school computer ffs) looks fucking cool.

@keito: My guess is that the metabob thingy kinda bases on a basic twister routine, but cleverly used (line lookup).
rulez added on the 2019-07-14 15:09:51 by d0DgE d0DgE
Yeah
rulez added on the 2019-07-14 17:20:15 by grip grip
It's literally the best Tiki demo ever! Good pacing, nice effects.
rulez added on the 2019-07-14 19:45:03 by Sesse Sesse
I like how the compo machine literally caught fire... Must be some really optimal inner loops in the code!
rulez added on the 2019-07-14 20:22:08 by Nosferatu Nosferatu
Supernice!
rulez added on the 2019-07-14 20:56:25 by sLASH_1 sLASH_1
Much obscure, strong demo, many codings!
rulez added on the 2019-07-14 21:09:05 by CiH CiH
added on the 2019-07-14 21:18:53 by neon neon
First of all! Regardless of the the platform, this is a very enjoyable and well crafted demo! Now, on a 1984 machine, this is an awesome demo. The Tiki seems to have been a bit ahead of its time, quite neat hardware for its time!
rulez added on the 2019-07-14 21:27:26 by Daniel Daniel
That's really nice, lots of varied screens!
And the remix part in the music is blastingly cool. :D
rulez added on the 2019-07-14 21:39:51 by Dma-Sc Dma-Sc
Soundtrack Medley vote!
rulez added on the 2019-07-14 22:28:15 by wertstahl wertstahl
Good show!
rulez added on the 2019-07-15 00:01:18 by Alpha C Alpha C
Great stuff, can't wait for the writeup. I'm genuinely curious about a few of the effects.
rulez added on the 2019-07-15 02:21:36 by ThePiloseOne ThePiloseOne
really cool work
rulez added on the 2019-07-15 11:25:33 by VBI VBI
Last Tiki Ninja rulez !
rulez added on the 2019-07-15 12:57:06 by Black Dragon Black Dragon
RIP the Tiki-100 which died running this prod on Solskogen ⚰️

Thanks for a fantastic demo, and thanks for keeping the Tiki-100 scene alive.
rulez added on the 2019-07-15 14:14:34 by run run
RULEZ!!
rulez added on the 2019-07-15 15:22:48 by kRiZ^cMz kRiZ^cMz
Platform + fantastic graphics + the metaball FX = big thumb up for me !
rulez added on the 2019-07-15 15:22:59 by norecess norecess
Great music, nice graphics, good effects. What's not to like?
rulez added on the 2019-07-15 17:31:43 by StingRay StingRay
awesome for such rare platform! :)
rulez added on the 2019-07-15 18:48:22 by wbcbz7 wbcbz7
Wondering if its possible to run this on Djupdal's TIKI-100 Emulator. Cannot get it to work.
added on the 2019-07-15 19:23:34 by rudi rudi
Quote:
Wondering if its possible to run this on Djupdal's TIKI-100 Emulator. Cannot get it to work.

No, Djupdal's emulator doesn't emulate the required hotwiering required to get interrupts on video-sync. On the other hand, Neon has developed his own emulator that implements the extra wiering.
No, it will not work on Djupdals emulator. There are several reasons why:

The obvious one is that the demo requires you to connect two sync signals from two pins inside the machine to the printer port to be able to get interrupts on vertical and horizontal sync.

Djupdals emulator is also not really that accurate. It does not emulate the extra waitstate for each instruction fetch (during the M1 cycle on Z80) so the code runs a little bit too fast. The video hardware is also emulated from the high level specification point of view, not the way it is implemented in hardware.

Some of the effects in the demo changes the scroll register every scanline (the twister does this 3 times for each scanline). This requires a nearly cycle exact emulator. The demo also uses an undocumented video mode (mode 0 or 1 color mode) to turn off the screen twice per frame in some parts.

Since the video hardware must read the video memory continuously, extra waitstates are introduced when the CPU is accessing the video memory. The CPU and the video hardware runs on two separate clocks (from two different crystals) so the number of cycles the CPU has to wait varies depending on the video clock. The demo makes use of this to sync the CPU to the beam to time loops to exactly one scanline. (This is done by just reading the video memory).

My own emulator runs the demo of course, but I will not release it yet because the code is a bit horrible, I've only implemented stuff I need (writing to the disk is not supported). It also uses 3rd party code for some of the parts (AY-3-8912 and Z80 + some of the support chips) where I'm unsure about the license terms.
added on the 2019-07-15 20:17:51 by neon neon
Woah this blew me away. Remembering Tiki-100 from highschool I would never imagine one could do these kind of effects on it. This time around not only scanline effects, but also LUTs and 3d scenes. Also + metal points for burning on stage!
rulez added on the 2019-07-16 10:57:03 by rloaderro rloaderro
Brilliant stuff!
rulez added on the 2019-07-16 11:37:23 by kusma kusma
Worth adding a link to a video of what I believed to be the peak graphics capabilities of this machine :
Tiki invaders
added on the 2019-07-16 13:26:17 by rloaderro rloaderro
Superb oldschool demo on a platform I hadn't even heard of before. Cheers!
rulez added on the 2019-07-16 17:47:36 by Mibri Mibri
Awesome!
rulez added on the 2019-07-16 22:06:51 by Mystra Mystra
Beautiful! <3
rulez added on the 2019-07-17 00:05:37 by ISL ISL
Not sure what the Tiki was intended to do. But I'm pretty sure it wasn't this :-)
rulez added on the 2019-07-17 22:36:07 by Emufr3ak Emufr3ak
nice show
rulez added on the 2019-07-17 23:41:29 by krusty krusty
Compo machine is alive again, and running the demo like a champ! It only took a new powersupply and replacing a few chips on the motherboard.
Simply OSSOM demo! \o/
rulez added on the 2019-07-18 09:53:36 by sachy sachy
wtf this is amazing
rulez added on the 2019-07-18 17:59:21 by pandur pandur
Not your run-of-the-mill typical cheap Z80 platform Hw features wise, but the release is nevertheless OSSOM!
rulez added on the 2019-07-18 22:21:51 by Hoild Hoild
Cool demo
rulez added on the 2019-07-19 15:48:32 by bitl bitl
Big kudos for this demo. First I also had no idea about this computer. Secondly great effects and design considering retro platform and last but not least it has hollow in its name ]:->

Anyway, I read about this computer after watching, is it Z80 or 8080 demo?
rulez added on the 2019-07-19 20:07:17 by hollowone hollowone
Quote:
Anyway, I read about this computer after watching, is it Z80 or 8080 demo?

It runs on Z80 (I assume you meant Z80 or 8088).
added on the 2019-07-19 20:33:01 by neon neon
Not bad. :)
added on the 2019-07-20 01:40:52 by AntDude AntDude
for some fx and for the platform
rulez added on the 2019-07-22 22:08:34 by frog frog
Supercool!
rulez added on the 2019-07-23 19:34:45 by tifeco tifeco
!!!
rulez added on the 2019-07-28 18:40:48 by Frequent Frequent
No idea of the HW but seems to be able to produce some cool stuff :) Last Ninja tribute in music :)
rulez added on the 2019-07-29 18:20:43 by Serpent Serpent
Well done! :) Another really impressive production for a machine I remember very well from school (and a friend's house) and considered to be inferior to my Commodore 64 by a good margin. ;) Now the Tiki-100 has finally gotten the attention and recognition it deserved. Wouldn't it be great if some of the original creators of the computer at Tiki-Data AS could see this?
By the way, I know there are no raster interrupts on the stock Tiki-100, but do you have any other indications that you are outside the screen area, horizontal or vertical?
rulez added on the 2019-07-30 14:48:06 by Parody Parody
Quote:
Well done! :) Another really impressive production for a machine I remember very well from school (and a friend's house) and considered to be inferior to my Commodore 64 by a good margin. ;) Now the Tiki-100 has finally gotten the attention and recognition it deserved. Wouldn't it be great if some of the original creators of the computer at Tiki-Data AS could see this?
By the way, I know there are no raster interrupts on the stock Tiki-100, but do you have any other indications that you are outside the screen area, horizontal or vertical?

The guy who created the graphics subsystem did give the demo a like on the Tiki-100 facebook group, so at least one of the creators have seen the demo.

I did spend some time trying to find a way to detect the raster position without hardware mods. I tried to see if the access to the video memory was faster during vblank, but it is not. The video hardware reads the video memory all the time, also when not drawing.
added on the 2019-07-30 15:54:32 by neon neon
Totally awesome guys! Those three twisters, were they perhaps inspired by my Amiga 1200 boot block twister in "Let's twist again" or a mere coincidence? :)
rulez added on the 2019-08-03 19:27:54 by JackAsser JackAsser
Quote:
Totally awesome guys! Those three twisters, were they perhaps inspired by my Amiga 1200 boot block twister in "Let's twist again" or a mere coincidence? :)

I think it was a coincidence, but we were aware of the similarity (or ripoff). We tried to change the colors a bit but didn't find anything that looked as good and just went for it.
added on the 2019-08-03 20:57:51 by neon neon
How great that one of the original creators has seen the demo. :)

By the way, I asked the webmaster here if it would be possible to create a Tiki-100 category, but the answer was that there is a 10 production minimum to be considered. So, keep up the good work! ;)
added on the 2019-08-05 12:33:51 by Parody Parody
great
nice
rulez added on the 2019-08-08 16:48:18 by spritus spritus
Awesome effect show <3 great music by Response, too
rulez added on the 2019-08-09 06:20:19 by Triace Triace
The demoscene hasnt touched every old computer yet with a SPLENDID demo!
Congratz to all involved!
rulez added on the 2019-08-09 11:46:32 by magic magic
Don't know the hardware, but this demo is enjoyable!
rulez added on the 2019-08-10 20:57:07 by Blueberry Blueberry
Wonderful work. Thanks for this!
rulez added on the 2019-08-11 03:06:29 by Alopex Alopex
At first I thought iw was a video-wild. THen the gfx was too pixeled, and then the effects were too "coded-wise" to be still a video-demo.

Great demo. I was really pleased to see a mix of 8bit sound (some Last ninja notes here and there?) and gfx with an almost 16bit code.

Cool prod for a great party! Great work dudes!
Tussen takk!
added on the 2019-08-11 11:29:37 by sim sim
Quote:
My own emulator runs the demo of course

Very impressive and a joy to watch, too - what Slummy said!
rulez added on the 2019-08-11 20:42:45 by zstab zstab
Nice demo on a Tiki-100 saw it now for the first time on Solskogen Online this year
rulez added on the 2020-07-11 12:26:37 by Queen_Luna Queen_Luna
I liked it very much, esp. knowing it is an old trusty Z80 under the bonnet. This seems to be one of the more graphics-rich platforms based on the basis of Z80, so it is fun to see it being capable of all this Amiga-like visuals. Your work is definitely an inspiration.
rulez added on the 2021-04-02 19:55:19 by introspec introspec
Really pleasant to watch and impressive for an 8 bit demo
rulez added on the 2021-12-20 17:03:26 by exocet exocet
<3 Really really nice!
rulez added on the 2022-11-15 09:05:50 by prost prost

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