Hi,
well i am sort of a beginner but "successfully understand and compiled" the NeHe tutorials at gamedev.net ;)
But what i am looking for is an algorithm for a nice tunnel in OpenGL. :/
While working with the codes of NeHe i got some clues about 3D and so, but not really about an tunnel.
Sure i can use a loooooong torus or a camera tracking shot through a möbius strip, but it does not solve my problem...
I want it going random. To the left and to the bottom, to top and to the right, as i say: shaky.
Some bass XM in the background and on a random bass note the direction changes.
In fact, i think the easy part is with XM play and random changes, the difficult with my requirement to code a random tunnel going infinite.
My first demo showing a tunnel was Comas demo "Cocoon" @ 40sec - 55sec (use the norway mirror)
http://scene.org/file.php?file=/parties/2004/start04/demo/comacocoon_partyrelease.divx51.avi&fileinfo
and ever since then i want to program my own tunnel with cool effects and some more.
Is my "project" possible?
If not, can you at last share with me some knowledge about programming a tunnel?
Many thanks
Regards
Soulprayer
ps: hope my english is good enough to understand my request
Hi SoulPrayer and welcome here :)
Maybe you could store only a part of the tunnel : behind you, you don't have to calculate anything since you don't see it, but in front of you, you can calculate the tunnel faces position from your position to a selected distance : you can generate the tunnel while you're traveling in.
To handle memory, you can store calculated triangles in an array or a ptr and delete triangles behind you : like this, you won't need a huge amount of memory and since the tunnel is generated in real-time it can be totally infinite :)
@Soulprayer:
Welcome to the forum. Tunnels are indeed some very fascinating
effect. To have a basic understanding you might be interested in
a very old challenge which was held by this forum - have a look
at the posts in this thread for some tunnel examples (with sources):
http://www.dbfinteractive.com/forum/index.php/topic,80.0.html (http://www.dbfinteractive.com/forum/index.php/topic,80.0.html)
I love tunnels!!! My next game(if ever that comes at all) would involve an abstract tunnel.
(http://rel.betterwebber.com/images/screenies/glass_tunnel.jpg)
Anyways,some tunnels I made in OpenGL:
Ascaris:
http://rel.betterwebber.com/junk.php?id=47
Flower tunnel:
http://rel.betterwebber.com/junk.php?id=57
Glass Tunnel:
http://rel.betterwebber.com/junk.php?id=91
Source included and I'll be online for 3days so you could post your Q's regarding the source anytime.
Hey many thanks for your ideas, I'll try!
And I'll give me time to understand, don't expect me doing this in some days ;)
@relsoft
I love tunnels too! :)
The Ascaris demos are cool!
Thanks for the code, I'll work with it and try to do my demo in C++
@benny
Thanks, I'll have a look at them! :D
@Hezad
Good idea, i'll give it a try.
@Soulprayer:
some more infos about how you could code a tunnel effect:
http://www.dbfinteractive.com/forum/index.php/topic,1942.0.html (http://www.dbfinteractive.com/forum/index.php/topic,1942.0.html)
Quote from: Soulprayer on December 18, 2008
@relsoft
I love tunnels too! :)
The Ascaris demos are cool!
Thanks for the code, I'll work with it and try to do my demo in C++
Guess what? I have a C++ version too!!!
http://rel.betterwebber.com/junk.php?id=48
(http://matthew-4gl.wikispaces.com/space/showimage/A1_Basic4GL_PLasmaTunnel_Pic.jpg)
Hi Soulprayer, there is a tunnel written in Delphi which uses OpenGL here (http://www.sulaco.co.za/opengl_project_plasma_tunnel.htm).
I converted the program to Basic4GL some time ago & you can download it here (http://matthew-4gl.wikispaces.com/space/showimage/PlasmaTunnel.rar).
I also had written a version of it in thinBasic which you can download here (http://matthew-4gl.wikispaces.com/space/showimage/PlasmaTunnel_tb.rar).
Source code & .exes are included with both downloads.
QuoteMy first demo showing a tunnel was Comas demo "Cocoon" and ever since then i want to program my own tunnel with cool effects and some more.
Well, the demo is called Coma (http://www.pouet.net/prod.php?which=11457) and the group's name is Cocoon (http://cocoon.planet-d.net) ;)
Quotei can use a loooooong torus [...] but I want it going random
I'm pretty sure for this specific tunnel Nytrik did exactly that in 3dsmax.
To do it procedurally, you could generate a torus along a spline where you create the position-samples from filtered noise (perlin or such).
You could generate segments of reasonable size as soon as they become visible and trash them after the camera passed through (- just as Hezad pointed out already).
May I ask where in NRW you are located?
Whow, you're great!
Many thanks for your support!
The tutorial is in German, great! :D
And thanks for the link to Cocoons hp!
Now i know what to do in my spare time over christmas and New Year's Eve!
@matthew:
oh you are right.. i totally forgot the site of my good old friend Sulaco from Africa who sadly died some years ago... He was a very very cool and friendly guy, where people can find and learn a lot about OpenGL coding! :goodpost:
Quote from: va!n on December 19, 2008
@matthew:
oh you are right.. i totally forgot the site of my good old friend Sulaco from Africa who sadly died some years ago... He was a very very cool and friendly guy, where people can find and learn a lot about OpenGL coding! :goodpost:
WTF?!!! He's dead?!!! I learned a lot from that guy! Man this sucks.
Quote from: relsoft on December 20, 2008
WTF?!!! He's dead?!!! I learned a lot from that guy! Man this sucks.
Yeah he died back in 2002, his parents were featured in a religious documentary shortly after his death.
A copy of the documentary can be downloaded from this (http://www.sulaco.co.za/messages.htm) webpage.