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Forums > C64 Productions > Demos with user mode
2022-07-31 16:46
Krill

Registered: Apr 2002
Posts: 2969
Demos with user mode

... to prove real-time rendering:

One-Der
Panta Rhei
Andropolis

Please add more to this list!
2022-07-31 18:50
Burglar

Registered: Dec 2004
Posts: 1089
Dutch Breeze

edit: oh, "to prove realtime rendering", well the finger is animated... :P
2022-07-31 19:22
Joe

Registered: Apr 2002
Posts: 226
A Load of Old Shit
2022-07-31 20:10
wacek

Registered: Nov 2007
Posts: 513
Can you add also small info about which exact part and how it is triggered? Not every demo that you link has that info in the trivia etc. Thanks!

Don't know if it counts, but:
Sweet Infection - last part with butterfly, can be controlled by joy#2, activated by pressing fire ;)
2022-07-31 22:29
Krill

Registered: Apr 2002
Posts: 2969
Quoting wacek
Can you add also small info about which exact part and how it is triggered? Not every demo that you link has that info in the trivia etc. Thanks!
True that. :)

One-Der: In the Gouraud shader and dot rotator parts, joystick button enters user mode. (Final Wolfenstein part is obvious, of course.)
Panta Rhei: In the plasma X-rotator and subpixel-precision vector object parts, joystick button enters user mode.
Andropolis: Doom part on side disk image is controllable with joystick.
2022-07-31 23:31
Ziaxx

Registered: Oct 2020
Posts: 18
Zippy Code

Use joystick to move dot.
2022-07-31 23:35
Krill

Registered: Apr 2002
Posts: 2969
Quoting Burglar
Dutch Breeze

edit: oh, "to prove realtime rendering", well the finger is animated... :P
Yes. Intention may be anyone's guess, but i was not aiming at old-timey low-complexity things (where "animation" is obviously ruled out) allowing you to control raster splits or DYCP movements and stuff like that.

Do you mean the mixer part?
2022-08-01 06:38
ChristopherJam

Registered: Aug 2004
Posts: 1408
Letting users tweak parameters for dot plots was pretty common back in the day (eg the dot plotter in Mixer (1989)), but it sounds like that misses your complexity metric?
2022-08-01 08:48
Krill

Registered: Apr 2002
Posts: 2969
Quoting ChristopherJam
but it sounds like that misses your complexity metric?
Yes, it does. :)

A somewhat less arbitrary metric would be "release date not before 1990", unless somebody digs out a 198x demo with controllable vector objects or something.
2022-08-01 11:16
Slammer

Registered: Feb 2004
Posts: 416
1989 demo with controllable vector object -> The larch 3
2022-08-01 11:27
Krill

Registered: Apr 2002
Posts: 2969
Quoting Slammer
1989 demo with controllable vector object -> The larch 3
The Larch 3 2nd part on side 2.
2022-08-01 13:00
zscs

Registered: Sep 2010
Posts: 48
One Year Crest
1st part after the intro, DYCP can be controlled with a joystick. 2nd part: sideborder tech-tech control with joystick. 4th part: sideborder sprite scroll speed. 5th part: joy up/down: sprite multiplexer control. left/right: scroll speed. 7th part: sprites can be controlled.
2022-08-01 13:07
Krill

Registered: Apr 2002
Posts: 2969
Quoting zscs
DYCP can be controlled with a joystick. 2nd part: sideborder tech-tech control with joystick. 4th part: sideborder sprite scroll speed. 5th part: joy up/down: sprite multiplexer control. left/right: scroll speed. 7th part: sprites can be controlled.
How is that different from "i was not aiming at old-timey low-complexity things (where "animation" is obviously ruled out) allowing you to control raster splits or DYCP movements and stuff like that"?
2022-08-01 13:14
ChristopherJam

Registered: Aug 2004
Posts: 1408
Well, DYCP records are often supposedly broken with speedcode that only allows a particular path..
2022-08-01 15:28
zscs

Registered: Sep 2010
Posts: 48
Quote: Quoting zscs
DYCP can be controlled with a joystick. 2nd part: sideborder tech-tech control with joystick. 4th part: sideborder sprite scroll speed. 5th part: joy up/down: sprite multiplexer control. left/right: scroll speed. 7th part: sprites can be controlled.
How is that different from "i was not aiming at old-timey low-complexity things (where "animation" is obviously ruled out) allowing you to control raster splits or DYCP movements and stuff like that"?


you are right, wrong example. But the others linked some crazy cool stuff, would be nice to see similar things in the new prods.
(What if someone created a new compo for demos with user mode? :-) )
2022-08-01 15:39
Krill

Registered: Apr 2002
Posts: 2969
Quoting ChristopherJam
Well, DYCP records are often supposedly broken with speedcode that only allows a particular path..
"Supposedly" :) Where's the entry in The Book insisting on how it must be done?

But there weren't that many user-controllable parts in the 80s anyways, so scratch the arbitrary distinction of "proving real-time rendering" for the purposes of this thread. =)

Quoting zscs
(What if someone created a new compo for demos with user mode? :-) )
Tbh, terrible idea. :)
2022-08-01 15:46
Carrion

Registered: Feb 2009
Posts: 317
Origon by Elysium.
Origon
You can control plasma in part 1 and tv box in later part.
oh and bezier splines too
2022-08-01 16:29
Spinball

Registered: Sep 2002
Posts: 88
Legoland 2, in the 3D-starfield-part you can control the spaceship with joy#2.

Legoland 2
2022-08-01 17:02
chatGPZ

Registered: Dec 2001
Posts: 11359
Quote:
But there weren't that many user-controllable parts in the 80s anyways

yeah? i remember a lot of dycp and plotters and plasmas had this
2022-08-01 22:30
Krill

Registered: Apr 2002
Posts: 2969
Quoting Groepaz
Quote:
But there weren't that many user-controllable parts in the 80s anyways

yeah? i remember a lot of dycp and plotters and plasmas had this
Feel free to dump them here, but in as few posts as possible, please. :)
2022-08-01 22:35
chatGPZ

Registered: Dec 2001
Posts: 11359
As if i remember names :)
2022-08-01 22:39
ws

Registered: Apr 2012
Posts: 251
Is this request restricted to c64 demos only? Because there immediately are a few amiga demos that come to mind...
2022-08-01 22:41
Krill

Registered: Apr 2002
Posts: 2969
Quoting ws
Is this request restricted to c64 demos only? Because there immediately are a few amiga demos that come to mind...
Last time i checked, there wasn't a single Amiga demo in this here database. :)
2022-08-01 23:10
Copyfault

Registered: Dec 2001
Posts: 475
In the last part of Protogeo 100% with the rotating vector cube, you can keep some keys pressed (iirc "a", "s", "d") to "freeze" the rotation around the corresponding axis (x, y or z).
2022-08-03 00:18
Perplex

Registered: Feb 2009
Posts: 255
Not much "rendering" or user input to speak of, but the elastic/electric collisions part at the start of disk 2 of Another Beginning will run without repetition until <space> is pressed.
2022-08-04 14:45
Monte Carlos

Registered: Jun 2004
Posts: 358
Rutig Banan also has a user mode in the final dycp part.
2022-08-06 14:30
Oswald

Registered: Apr 2002
Posts: 5086
Quote: Not much "rendering" or user input to speak of, but the elastic/electric collisions part at the start of disk 2 of Another Beginning will run without repetition until <space> is pressed.

you're kidding right? most demos from 80s have this feature, part runs until space is pressed. :D
2022-08-06 16:22
Perplex

Registered: Feb 2009
Posts: 255
Quote: you're kidding right? most demos from 80s have this feature, part runs until space is pressed. :D

The point was that's what shows the collisions were not precalculated.
2022-08-07 10:01
Oswald

Registered: Apr 2002
Posts: 5086
Quote: The point was that's what shows the collisions were not precalculated.

I get that but thats not user input.
2022-08-07 10:02
Oswald

Registered: Apr 2002
Posts: 5086
Total Decay

another one from bones. used to stare at this for half an hour while tweaking it.
2022-08-08 17:12
Stone

Registered: Oct 2006
Posts: 172
The final part in We Are All Connected is playable if you press fire (joystick port #2) on the title screen.
2022-08-08 17:23
Oswald

Registered: Apr 2002
Posts: 5086
One Year Demo

PART 5 (huge blue TV logo) there is an "oscilloscope" display inside the logo, you can play a spaceship game if you press fire.
2022-08-08 22:41
Wile Coyote
Account closed

Registered: Mar 2004
Posts: 646
Zeros & Ones (2011)

Joystick controlled cursor to select parts.
Does that count?
2022-08-08 22:50
Krill

Registered: Apr 2002
Posts: 2969
No.
2022-08-08 23:01
Stone

Registered: Oct 2006
Posts: 172
Delta Demo also has a (extremely rudimentary) spaceship game.
2022-08-09 00:43
chatGPZ

Registered: Dec 2001
Posts: 11359
Quote:
Joystick controlled cursor to select parts. Does that count?

whats next - "user hast to flip over the disk to see more"?
2022-08-09 00:57
Wile Coyote
Account closed

Registered: Mar 2004
Posts: 646
@Krill 'No.' ?

The sprite is user controlled, and it accesses all borders :D
..how cool is that! :)
2022-08-09 11:11
Scout

Registered: Dec 2002
Posts: 1570
I dare you all to play the loader game of Spoiled Rotten
2022-08-09 11:21
Krill

Registered: Apr 2002
Posts: 2969
Quoting Groepaz
Quote:
Joystick controlled cursor to select parts. Does that count?

whats next - "user hast to flip over the disk to see more"?
User has to press space to see more.

Suddenly, all demos made before... hmm, Elysion - the Requiem (?) are added to this list. =)
2022-08-17 10:21
Ghostrider
Administrator

Posts: 45
Obscene Code
The texture-mapped doom-clone (as such were called in the 90s) in the end-part is fully joystick-controllable.

Holy Refuge
Control of the 3d-landscape part is entered by pressing joystick up-left and pressing fire at the same time. Then you can move and hold fire to go up/down and slide sidewards. (Demo will continue after some time, and timing may be fucked after that, according to the note.)
The Stock released a freezed and patched version of the landscape part of Holy Refuge as a stand-alone without time limit: Holy Refuge landscape part

Brutality
The part with the pyramid, where you can trigger a number of new calculations of the raytracing with the C= key.

Brutal III
Joy-controllable filled vector objects.
Joy-controllable hidden-line vector objects.
In the end-part you can choose between several animated texture-mapped 3d-objects that the part will then calculate and display.
2023-12-10 03:07
Mr SQL

Registered: Feb 2023
Posts: 136
Breakout Pet Factory is a user mode demo where one or two players can take over the controls at any time or relinquish them to the CPU.

Breakout Pet Factory

https://www.youtube.com/watch?v=XJNeu97_YW0

The story the demo tells (in description below video) changes when user mode is engaged.
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