March 1998
- Describe Concept Stephen Zepp
- Describe Concept Jon A. Lambert
- Describe Concept J C Lawrence
- Describe Concept Jon A. Lambert
- Describe Concept J C Lawrence
- Describe Concept Vadim Tkachenko
- Tutorial: Let's build a Compiler! - Part XI: Lexical Scan Revisited Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XII: Miscellany Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XIII: Procedures Jon A. Lambert
- Tutorial: Let's build a Compiler! Chris Gray
- VEIL Network Protocol Brandon Gillespie
- Tutorial: Let's build a Compiler! - Part XIV: Types Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XV: Back to the Future Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XVI: Unit Construction Jon A. Lambert
- For Ling's FAQ Koster, Raph
- MUD Ratings jlsysinc.ix.netcom.com@ix.netcom.com
- Random Generation Tools Ling
- ANNOUNCE: DB Robin Carey
- THE DARKWHOLE TESTS J C Lawrence
- Magic as Metaphor J C Lawrence
- Magic as Metaphor J C Lawrence
- Magic as Metaphor Jon A. Lambert
- Magic as Metaphor J C Lawrence
- CT - A Hypothetical Session (mid 1995) J C Lawrence
- 2Cyberconf: An article J C Lawrence
- (long) AnarchyMOO Primary Log J C Lawrence
- (short) AnarchyMOO parting salute J C Lawrence
- AnarchyMOO purpose J C Lawrence
- (fwd) CODE RELEASE: [client] Spod! (Java mud client) J C Lawrence
- (fwd) CODE RELEASE: [client]: lyntin (hacker's client) 1.1b Released J C Lawrence
- DarkWhole Test #1 J C Lawrence
- DarkWhole Test #2 J C Lawrence
- DarkWhole test #3 J C Lawrence
- DarkWhole test #4 J C Lawrence
- DarkWhole test #5 J C Lawrence
- DarkWhole test Identity Crisis J C Lawrence
- The Craft of Adventure J C Lawrence
- What in THE Hell was that? Stephen Zepp
- What in THE Hell was that? Ben Greear
- What in THE Hell was that? J C Lawrence
- What in THE Hell was that? Jon A. Lambert
- (fwd) Varying Time Commitment Levels: what's an admin to do? J C Lawrence
- Hello, and a brief intro cimri
- Hello, and a brief intro Ben Greear
- (no title) Time limits? s001gmu@nova.wright.edu
- (no title) Time limits? Justin McKinnerney
- (no title) Time limits? J C Lawrence
- Speaking of Avatars Jon A. Lambert
- Speaking of Avatars Jon A. Lambert
- Speaking of Avatars J C Lawrence
- Speaking of Avatars Jon A. Lambert
- Re: Vadim Tkachenko
- META: Broken mail headers coder@ibm.net
- META: Broken mail headers Alex Oren
- META: Broken mail headers J C Lawrence
- META: Broken mail headers Alex Oren
- META: Broken mail headers J C Lawrence
- META: Broken mail headers Chris Gray
- META: Broken mail headers J C Lawrence
- META: Broken mail headers Caliban Tiresias Darklock
- META: Broken mail headers Chris Gray
- Turn-based MU*'s Sauron
- Balancing Addicts -> soft vs. hard enforcement cimri
- Balancing Addicts -> soft vs. hard enforcement Justin McKinnerney
- Balancing Addicts -> soft vs. hard enforcement J C Lawrence
- Balancing Addicts -> soft vs. hard enforcement Jon A. Lambert
- Balancing Addicts -> soft vs. hard enforcement Ling
- Balancing Addicts -> soft vs. hard enforcement Jon A. Lambert
- Balancing Addicts -> soft vs. hard enforcement Matt Chatterley
- Balancing Addicts -> soft vs. hard enforcement J C Lawrence
- Balancing Addicts -> soft vs. hard enforcement Jon A. Lambert
- Balancing Addicts -> soft vs. hard enforcement Matt Chatterley
- Balancing Addicts -> soft vs. hard enforcement Adam Wiggins
- Balancing Addicts -> soft vs. hard enforcement Joel Dillon
- SfD: Clientside Caching Nathan F Yospe
- SfD: Clientside Caching Jon A. Lambert
- SfD: Clientside Caching Nathan F Yospe
- SfD: Clientside Caching Chris Gray
- SfD: Clientside Caching Jon A. Lambert
- (subject missing) J C Lawrence
- Balancing Addicts Ling
- Balancing Addicts Richard Woolcock
- Balancing Addicts Ling
- Balancing Addicts J C Lawrence
- Transport layer (UDP vs TCP) Ben Greear
- Transport layer (UDP vs TCP) Niklas Elmqvist
- Transport layer (UDP vs TCP) Jon Leonard
- Transport layer (UDP vs TCP) Ben Greear
- Transport layer (UDP vs TCP) Jon Leonard
- Transport layer (UDP vs TCP) Ben Greear
- Transport layer (UDP vs TCP) Chris Gray
- Transport layer (UDP vs TCP) Niklas Elmqvist
- Transport layer (UDP vs TCP) Jon A. Lambert
- Transport layer (UDP vs TCP) Ben Greear
- Time Limits? Jon A. Lambert
- META: topic and thread culling (was Balancing Addicts -> soft vs. hard enforcement ) J C Lawrence
- (subject missing) J C Lawrence
- XShipWars J C Lawrence
- (fwd) INFO: [client] Chaco looking for new parent for Pueblo J C Lawrence
- SIMULATING FUTURE HISTORIES: THE NAU SOLAR SYSTEM SIMULATION & MARS SETTLEMENT J C Lawrence
- (fwd) Functional Security J C Lawrence
- (fwd) Functional Security Ling
- (fwd) Functional Security Chris Gray
- (fwd) Functional Security Matt Chatterley
- (fwd) Functional Security Miroslav Silovic
- (fwd) Functional Security Felix A. Croes
- (fwd) Functional Security J C Lawrence
- SIMULATING FUTURE HISTORIES s001gmu@nova.wright.edu
- Character development [was ] Matt Chatterley
- Character development [was ] J C Lawrence
- Character development [was ] Matt Chatterley
- Character development [was ] Travis Casey
- Character development [was ] J C Lawrence
- Character development [was ] Travis S. Casey
- Character development [was ] Marian Griffith
- Character development [was ] Travis S. Casey
- Character development [was ] Vadim Tkachenko
- Character development [was ] Travis Casey
- Character development [was ] Vadim Tkachenko
- Character development [was ] Travis Casey
- Character development [was ] Vadim Tkachenko
- Character development [was ] Marian Griffith
- Character development [was ] Vadim Tkachenko
- Character development [was ] Marian Griffith
- Character development [was ] s001gmu@nova.wright.edu
- Character development [was ] Marian Griffith
- Character development [was ] J C Lawrence
- Character development [was ] Cimri
- Character development [was ] J C Lawrence
- Character development [was ] s001gmu@nova.wright.edu
- Character development [was ] Caliban Tiresias Darklock
- Character development [was ] Caliban Tiresias Darklock
- Character development [was ] Vadim Tkachenko
- Character development [was ] Ben Greear
- Character development [was ] Matt Chatterley
- Character development [was ] J C Lawrence
- Character development [was ] Matt Chatterley
- Character development [was ] Travis S. Casey
- Character development [was ] J C Lawrence
- Character development [was ] Koster, Raph
- Character development [was ] J C Lawrence
- Character development [was ] Koster, Raph
- Character development [was ] Alex Bertoglio
- Character development [was ] J C Lawrence
- Character development [was ] J C Lawrence
- Character development [was ] John Bertoglio
- 3D engines for MUDs Niklas Elmqvist
- 3D engines for MUDs Chris Gray
- 3D engines for MUDs J C Lawrence
- 3D engines for MUDs Niklas Elmqvist
- 3D engines for MUDs Chris Gray
- 3D engines for MUDs Ling
- 3D engines for MUDs Koster, Raph
- 3D engines for MUDs Mike Sellers
- 3D engines for MUDs Niklas Elmqvist
- 3D engines for MUDs Koster, Raph
- 3D engines for MUDs Ling
- 3D engines for MUDs s001gmu@nova.wright.edu
- Dynamic Loading of Modules Niklas Elmqvist
- Dynamic Loading of Modules Greg Munt
- Dynamic Loading of Modules J C Lawrence
- Parlez vous NPC? Matt Chatterley
- Parlez vous NPC? Vadim Tkachenko
- Parlez vous NPC? Matt Chatterley
- Parlez vous NPC? Chris Gray
- Parlez vous NPC? Matt Chatterley
- Parlez vous NPC? Nathan F Yospe
- Parlez vous NPC? Matt Chatterley
- Dynamic Loading of Modules Niklas Elmqvist
- Dynamic Loading of Modules Chris Gray
- Dynamic Loading of Modules Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? Greg Munt
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? s001gmu@nova.wright.edu
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? Ross Nicoll
- World Persistence, flat files v/s DB v/s ?? Ross Nicoll
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? s001gmu@nova.wright.edu
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Adam Wiggins
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Orion Henry
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Nathan F Yospe
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Greg Munt
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- Jukebox Vadim Tkachenko
- Another recruit for the list? Joel Dillon
- OT: Martin Keegan J C Lawrence
- Old code Joel Dillon
- Old code Michael Hohensee
- UML/Commercial v Free Muds Greg Munt
- UML/Commercial v Free Muds Nathan F Yospe
- UML/Commercial v Free Muds Jon A. Lambert
- Heightfield Terrain Rendering Paper Niklas Elmqvist
- (subject missing) J C Lawrence
- (fwd) Roleplaying J C Lawrence
- (fwd) Roleplaying s001gmu@nova.wright.edu
- (fwd) Roleplaying Katrina McClelan
- (fwd) Roleplaying Ling
- (fwd) Roleplaying J C Lawrence
- (fwd) Roleplaying Travis Casey
- Predicting future motion intelligently J C Lawrence
A useful follow-up for those not overly familiar with B-splines.
Date: Thu, 26 Mar 1998 17:50:38 -0500 (EST)
From: Dan Stimits <Stimits@cris.com>
To: swd@dogstar.mit.edu
Subject: Re: What ship movement info passes from client/server?
On Thu, 26 Mar 1998, Bert Peers wrote:
> Dan Stimits wrote:
>
>> This will sound complicated, but is very easy, and is basically an
>> extension of adding the bank. I don't know if anyone here has ever
>> programmed in Postscript (I love this stack based language...too
>> bad my printer doesn't), but there is something there called a
>> Bezier curve...PEX has support for something similar called a
>> B-Spline curve.B-Splines are very efficient to compute and draw by
>> computers, and Bezier curves in Postscript are what power the
>> graphics display in NeXT computers. We could get a tremendous
>> smoothness increase in the most lagged net conditions by using
>> these.
>
> I'm afraid I don't think this is a good idea... B-Splines are meant
> to have an interpolating curve without the RungeKutta oscillating
> effect common in polygonal interpolations... so it makes a great
> tool for tracing out be-here-at-time-t points when building an
> animation, or to fit surface splines through 3D scanner data to
> compress surface descriptions, but I don't feel it's appropriate for
> this task.
...deletia...
Actually, I do understand most of that. There may be a better way
than B-Splines, but B-Splines are efficient for computers, and the
curves are created by adding discrete points, much like network
packets. The curve is what would be flown, the control simply gives a
sample of points over time. If the net lags, the control will simply
not modify the curve quite as soon. What I'm looking at isn't a large
B-Spline either, just a 3rd or 4th order one, which means a 2nd or 3rd
degree polynomial. The real beauty of it becomes apparent when you
look at the same data plotted for different orders. The more lag you
get, the better the smoothing you'll get by using a higher order. And
both ends will have the data for a spline at any moment in time, so
both will see the same path until a new control point (generated by
the control stick) is added in. If one end adds it in later than the
other, the weighting will shift too, and things will tend to be
self-correcting without any further intervention or computing. In its
own way, it is just a self-predicting system...it doesn't interpolate
anything, it just creates a curve based on control points being
weighted in an intelligent manner. You'd be sending coordinates of
control points, rather than headings.
(~~~~~~~~~~~~~~~~~[ WolfPack Developmers' List ]~~~~~~~~~~~~~~~~~~~~~~)
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(_____________________________________________________________________)
--
J C Lawrence Internet: claw@null.net
(Contractor) Internet: coder@ibm.net
---------(*) Internet: claw@under.engr.sgi.com
...Honourary Member of Clan McFud -- Teamer's Avenging Monolith... - META: New Mail server and ISP J C Lawrence
- (rec.games.mud.admin) Roleplaying (fwd) Nathan F Yospe
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. Jon A. Lambert
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. J C Lawrence
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. J C Lawrence
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. Chris Gray
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. J C Lawrence
- Persistant storage.... My current idea. Ben Greear
- UML & CORBA Greg Munt
- [MUD-Dev]: smoothing J C Lawrence
- [MUD-Dev]: smoothing J C Lawrence