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
On Fri, 20 Mar 1998, Miroslav Silovic wrote:
> Michael Hohensee <michael@sparta.mainstream.net> writes:
>
> > Of course, the POVRAY renderer does take time to work, and wouldn't be
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> This is gross understatement. :) While 2-3 seconds are quite
> acceptable for a game, 1-60 minutes are not.
If we're talking static-screen-like graphics (like in most adventure
games), I agree that 2-3 seconds is quite alright for rendering. However,
if we're talking first-person six-degrees-of-freedom (don't really like
that term...) 3D graphics, something close to 20-40 fps is a *must* (that
is, 1/20 to 1/40 of a second per frame). In addition, if you've seen the
output of some of the new 3D accelerators (3Dfx being prominent among
these), you probably agree that these images are quite adequate and almost
rival simple raytraced images (ok, I'm exaggerating a bit).
Perspective-correct texture mapping, RGBA lights, texture blending and
whatnot is all in a day's (or, actually, a frame's) work for a good 3D
accelerator.
> <ShamelessPlug>
> Feel free to take the code from my renderer for both zbuffering and
> /really/ accelerated raytracing. Gah, now I need to speed up the
> bloody thing for scenes with fewer than 1,000 polygons (as raytracing
> becomes the low overhead operation in the low-complexity case, when
> procedural textures and image pre/postprocessing take over... 320x240
> low-quality previews take 2-3 seconds with 10 objects, 10-20 with
> 1000, using raytracing, and with zbuffering everything gets faster. I
> solved problems with quality loss with zbuffering and as a result, you
> get exactly the same image).
I can get splendid performance out of a 3Dfx accelerator running at
640x480x16bit, and I drool to think about the new Voodoo 2 (especially
the version with 12 megs VRAM) :)
Okay, to get this back on track a bit, let me say this: I am currently
investigating and implementing a Magic Carpet rendering engine on my own,
and it all looks pretty good. One problem with using a height field is
that it is impossible to create sheer, vertical drops, since the grid
nature of the height field prevents having two heights for the same x-y
position in the map. I've heard that techniques such as TIN (Triangular
Irregular Network), where you approximate a regular grid of triangles with
larger triangles (more efficient with large, flat spaces), not only solves
this somewhat but also significantly reduces the triangle count in a
landscape, but this technique has some inherent problems. First of all,
although TINs reduce the size of the data structure representing the
height field, the "lookup" time during rendering is significantly
increased. In addition, since the TIN consists of large triangles, we get
problems with texture coordinates and the likes if we want to have the
large triangle covered with different textures.
As mentioned earlier, polygon height field rendering is ideally suited for
visualizing large, outdoor areas. This is perfect for those MUDs where
most of the action takes place outdoors. In addition, the height field
nature lends itself easily to fractal terrain generation -- maybe it would
be possible for the server to merely send a seed to the clients and have
them generate the fractal terrain client-side. Has there been any
discussion about anything like this earlier?
If anyone is interested to learn more about polygon heightfield rendering
in game applications, I found a very good whitepaper about this. Download
it from <URL:http://www.ndl.com/ndl/download/TerrainPaper.zip> -- as it
happens, it is in the pesky Word 6.0 format, though. :(
> Miro
-- Niklas Elmqvist (d97elm@dtek.chalmers.se) ----------------------
"You can't trample infidels when you're a tortoise. I mean, all you
could do is give them a meaningful look."
- Terry Pratchett, Small Gods - 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
- 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