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Precalcing physics-scenes in demos

category: general [glöplog]
... is like holding a live concert with vocal-playback. We don't wanna do that... do we?
added on the 2005-01-31 11:40:09 by Duckers Duckers
If it looks good: do whatever you want..
depends on how much you precalc - some LUTs never hurt i guess...
added on the 2005-01-31 11:58:59 by Gargaj Gargaj
Its like thinking it couldnt be done in realtime, and its cool until "someone comes along and proves you wrong" :). And then, kusma, I'll be pointing and laughing :)
added on the 2005-01-31 12:08:29 by Duckers Duckers
i guess it depends on the complexity of the liveact.
playbacks can be nice to check if choreography is taken to extreme ;)
added on the 2005-01-31 12:27:12 by psenough psenough
Slummy is right, I think. If your demo starts by showing a "loading"-progress-bar, who cares what actually happens between 0-100%? The polite thing to do, of course, is to hide your precalc between the scenes. Nobody likes to wait for more than 5 seconds after launching the exe. Work all day, pray, pay, obey!
added on the 2005-01-31 12:34:32 by Hyde Hyde
hey, the demoscene is about lying and cheating your way to as much money as possible.
added on the 2005-01-31 15:36:31 by kusma kusma
As long as the precalc doesn't last as much as the whole show, anything goes.
Quoting some cool people I know: "Long precalc times bring big expectations".
added on the 2005-01-31 18:31:30 by dixan dixan
I personally prefer precalc to framerate-dependency, but it depends on the effect. If it's got millions of little particles in it, precalc would probably be a bad idea...
added on the 2005-01-31 19:26:05 by s_tec s_tec
"cubes the excess-way" (tm)
added on the 2005-01-31 19:37:52 by gloom gloom
i mean precalc as in making programs like 3dsmax precalc the entire effect, export to a file and just play it back in your demosystem. That's really the same as giving up the demoscene :P
added on the 2005-01-31 20:40:59 by Duckers Duckers
Precalculated physics is killing the scene!
added on the 2005-01-31 20:42:23 by Preacher Preacher
cube.y = fabs(sin(time));

REALTIME PHYSICS!!!!!!!!!!!!1
added on the 2005-01-31 20:47:08 by kusma kusma
precalcing some stuff for physics is really a must to get a more stable framerate across different cpu's. in demos which are non interactive you can precalculate quite much and no, it doesn't take ages to precalc some useful things for physics.
added on the 2005-01-31 21:10:34 by pantaloon pantaloon
I can name at least 3 very cool demos made up of animations, which some might consider even more lame than playing back "physics" animated in 3ds.
added on the 2005-01-31 21:56:48 by dixan dixan
I second kusma's first comment.
added on the 2005-01-31 22:04:29 by thorsten thorsten
We is subjective.
we are the robot.
added on the 2005-01-31 22:59:06 by gloom gloom
we are demo
added on the 2005-01-31 23:20:00 by gemini gemini
we are rasmus
added on the 2005-02-01 08:21:29 by psenough psenough
Duckers: Giving up the demoscene is the future!
Why not precalcing physics at startup or even at authoring time? Why nobody's complaining about "precalced character animations" - gee, they suck, realtime motion synthesis is much more demo spirit, right?
All this is of course to cover our own tracks. Yes I did physics precalc in syntonic dentiforms :)
added on the 2005-02-01 09:49:16 by NeARAZ NeARAZ
Precalc is a technique so integrated with the spirit of the demoscene that it practically *defines* the scene. Who cares how you did something as long as it looks like what it is intended to look like?
added on the 2005-02-05 08:54:20 by trixter trixter
Well, if you base your demo on realtime physics simulation (like that cool snooker demo at ASM2004) then there's no point in precalcs, even if people won't ever notice... it's like showing an animated gif of a plasma :)
added on the 2005-02-05 09:59:13 by dixan dixan
As long as the animated gif of a plasma looks great and fits the rest of the demo, I'm all for it.
added on the 2005-02-05 10:20:04 by Preacher Preacher

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