plib-users

[Plib-users] TIFF support for PLIB

[Chris <cc...@co...>]

Hi,

I've written a TIFF loader for PLIB. Is anyone interested? I can't put 
it in CVS myself.

I wrote it for 1.6.0. Is that a problem? Should I get it going in 1.7.0?

Chris Arena
Virginia Beach, VA

[Plib-users] PLIB with SDL?

[SkyFlash <sky...@ch...>]

I read you can use PLIB with SDL.... anyone ever did that?
 
The problem is that my app already uses SDL and SDL_Net and there is no
way to get it out of it,
and I cant seem to get both GLUT AND SDL working together peacefully.
Which I actually didnt even expect.
 
So, how can I use ssg and draw in the SDL screen? Are there any other
things I need to do / need to think of?
Is there maybe a tutorial page somewhere from someone that did something
daring like that? Lol
 
SkyFlash

[Plib-users] 3ds animation loading...

[SkyFlash <sky...@ch...>]

Ok, thx a lot for the camera help, it worked out great and I got now the
camera like i wanted it...
 
Now the next thing.... our model designer created an Orc with Animation.
How can I load an animation into PLIB and how do I call the different
animations for the model?
 
Like for example the Orc has an anim WALK and ATTACK and WAVE.
 
How can I load those, or, where are examples for that?? Or better, start
those, cause I can load the orc without problems.
 
SkyFlash

AW: [Plib-users] API Documentation and Camera Rotation....

[SkyFlash <sky...@ch...>]

>There is SSG documentation on the web site - and several example
>programs.
>It's on the web site.  Go to http://plib.sf.net/ssg


Actually I was looking for something like a doxygen doc where the API
calls are explained in detail, I already read what you stated... But I
will manage, I can learn from source pretty well. :)


>I don't know Diablo.  I only write computer games - I don't have time
>to play them too!  :-)


LOL thats cool... but there are only some games you need to play, and D2
is one of it. ;) If you like the genre that is of course.. :)

SkyFlash

Re: [Plib-users] API Documentation and Camera Rotation....

[Steve B. <sjb...@ai...>]

SkyFlash wrote:
> Alright, i am experimenting with PLIB right now, but I am kinda lost
> without docu or help....

There is SSG documentation on the web site - and several example
programs.

> I wanna do a few things and how no clue how...
> 
> - Create a floor, which is basicly flat and textured, if possible not
> from a 3D model but just from code.

Look at (for example) src/ssgAux/ssgaShapes.cxx - look at 'ssgaCube::regenerate()'
on about line 184.  That builds a cube without loading it from disk.

> - Have a camera which is locked in an isometric position, looking down
> at a certain angle onto a defined point.

There are at least four ways:

ssgSetCamera ( sgMat4 mat ) ;       -- Give it a matrix describing it's
                                        position and orientation.
ssgSetCamera ( sgCoord *coord ) ;   -- Give it an sgCoord (which contains
                                        X,Y,Z and H,P,R)

ssgSetCameraLookAt ( sgVec3 eyepoint, sgVec3 center ) ; -- Give it a position
                                        and a point in space to look towards.

ssgSetCameraLookAt ( sgVec3 eyepoint, sgVec3 center, sgVec3 up ) ; -- Ditto
                                        and also specify the "up" direction.

> - Have that camera rotate on keypress around that defined point to keep
> the angle on it.

Read the keypress in whatever way suits your application, figure out
the new position - call 'ssgSetCameraLookAt' each time it moves to
reposition it and/or it's "look at" point.

> Now I know SOME 3D math, but I have no clue how to set the coordinates
> for the camera, how to set the angle for the camera, how to make it look
> towards some point in space. Which functions are used for that and whats
> the argument list? Or better, where can I look up that information and
> also for the rest of the API?

It's on the web site.  Go to http://plib.sf.net/ssg

> I pretty much want the setup like in Diablo II, if that helps to
> visualize what I want, just that the camera can be rotated around the
> center point. (where the map is centered on)

I don't know Diablo.  I only write computer games - I don't have time
to play them too!  :-)

> For the floor, I just need some floor so I can see when I move the
> camera and of course later for the game as a real floor. :P

Yep.

If you want, you can download either 'Tuxkart' or 'TuxAQFH' and
'steal' one of the 'levelXXX.ac' files to load initially.  It's
a lot more interesting than just a flat plane - and you can load
it with just a single 'ssgLoad ( filename )' call.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net

[Plib-users] API Documentation and Camera Rotation....

[SkyFlash <sky...@ch...>]

Alright, i am experimenting with PLIB right now, but I am kinda lost
without docu or help....

I wanna do a few things and how no clue how...

- Create a floor, which is basicly flat and textured, if possible not
from a 3D model but just from code.
- Have a camera which is locked in an isometric position, looking down
at a certain angle onto a defined point.
- Have that camera rotate on keypress around that defined point to keep
the angle on it.

Now I know SOME 3D math, but I have no clue how to set the coordinates
for the camera, how to set the angle for the camera, how to make it look
towards some point in space. Which functions are used for that and whats
the argument list? Or better, where can I look up that information and
also for the rest of the API?

I pretty much want the setup like in Diablo II, if that helps to
visualize what I want, just that the camera can be rotated around the
center point. (where the map is centered on)

For the floor, I just need some floor so I can see when I move the
camera and of course later for the game as a real floor. :P

Thx for any help!

SkyFlash

Re: [Plib-users] Problem with texture loading on load3ds

[Norman V. <nh...@ca...>]

SkyFlash writes:
>> 
> >For optional use of PNG textures, download the glpng library from
> >http://www.wyatt100.freeserve.co.uk/download.htm and un-comment
> >the following line.
> 
> Sigh thats another lib I need to add to my never ending required library
> list. Is there any way around it? Like me converting them by hand?

Well if you want to load PNG files will also need libpng which is quite a
bit larger then the glpng library :-)

FWIW I use xnview to convert between file formats on windows  
http://www.xnview.com/

Norman

AW: [Plib-users] Problem with texture loading on load3ds

[SkyFlash <sky...@ch...>]

>The instructions for enabling PNG texture support are in
>$PLIB / src / ssg / ssgconf.h

Uh! Does this mean I need to read the source code of PLIB for
instructions, or is there a documentation of the API somewhere?

>For optional use of PNG textures, download the glpng library from
>http://www.wyatt100.freeserve.co.uk/download.htm and un-comment
>the following line.

Sigh thats another lib I need to add to my never ending required library
list. Is there any way around it? Like me converting them by hand?

Re: [Plib-users] Problem with texture loading on load3ds

[Norman V. <nh...@ca...>]

SkyFlash writes:

> Hi, I am new to PLIB and have a problem loading a 3d model.

Welcome :-)

> I created a test app to see how PLIB works, and converted the viewer
> into a nice OOP app that loads a model and display it. It works fine,
> except I cant load textured models.
> The textures are in the PNG format,

The instructions for enabling PNG texture support are in
$PLIB / src / ssg / ssgconf.h

/// repeated below

HTH

Norman

/*
  For optional use of PNG textures, download the glpng library from
  http://www.wyatt100.freeserve.co.uk/download.htm and un-comment
  the following line.
 */

#undef  SSG_LOAD_PNG_SUPPORTED

[Plib-users] Problem with texture loading on load3ds

[SkyFlash <sky...@ch...>]

Hi, I am new to PLIB and have a problem loading a 3d model.
 
I created a test app to see how PLIB works, and converted the viewer
into a nice OOP app that loads a model and display it. It works fine,
except I cant load textured models.
The textures are in the PNG format, and the loader says he cannot read
it and ask whether I installed ImageMagick. Of course I didnt, as I am
on Windows and not on Linux, so I got ImageMagick for Windows and
installed it. Started it again, same message. Thought maybe it
auto-detects the DLLs and converts by itself or something. Well, bad
thought. :P
 
Then it says I could convert them to rgb myself and reload the model, so
I typed: convert texture.png texture.rgb and sure enough I got a nice
RGB file. So I reloaded the model as told and it said: Sorry, unknown
magic byte. Couldnt recognize magic byte 0x0000. Wondering why its
0x0000 I loaded it with my hex editor and guess what, the whole picture
consisted of 00. Great, great tool, this ImageMagick stuff. :P
 
Now, how can I load my png files into PLIB? OR, how can I convert them
to RGB? Also, why was the rgb format chosen, its like the most
unsupported format I know for graphics?
 
SkyFlash

Re: [Plib-users] configure: error: can not find install-sh

[Steve W. <st...@sh...>]

On Mon, 13 Jan 2003, John K. Grant wrote:

> i'm new.  can someone tell me what i'm doing wrong.  it looks like i'm missing a
> file after a fresh download of the examples tarball.
>
> configure: error: can not find install-sh or install.sh in . ./.. ./../..

This has been discussed here before... just copy the files that are
missing from the main plib archive.

[Plib-users] configure: error: can not find install-sh

[John K. G. <jg...@ia...>]

hi,
i'm new.  can someone tell me what i'm doing wrong.  it looks like i'm missing a
file after a fresh download of the examples tarball.

here's what it looks like:

[root@sniper plib_examples-1.6.1]# ./configure 
loading cache ./config.cache
configure: error: can not find install-sh or install.sh in . ./.. ./../..

thanks for any help!
-john


John K. Grant
jg...@ia...

Re: [Plib-users] Onboard Sound Support?

[<ha...@sl...>]

Though it allows multiple opens, there is a limited number (I forget, is 
it 4? 8? 16?)  But, realistically, the limit will never be a problem for 
most people. 

I certainly agree with what you've said here..
Gotta love those queued up "message announcements" from icq that all hit 
me when I get a pause between songs in xmms.

--
Brian

>ha...@sl... wrote:
>> You can get a SB Live Value for like 30 bucks these days, I'd suggest that 
>> over the sound blaster pci 128 (sb pci 128) cards.  The driver allows 
>> multiple opens on /dev/dsp ...
>
>Ooohhhh!!!  Nice!
>
>That's so much better than the solution that some window managers
>provide where there is a sound mixing deamon that hogs /dev/dsp and
>doesn't let programs that are not written for that window manager
>work.
>
>I may just head down to Fry's and score a couple of those to replace
>the Ensoniq's in my machines.
>
>---------------------------- Steve Baker -------------------------
>HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
>HomePage : http://www.sjbaker.org
>Projects : http://plib.sf.net    http://tuxaqfh.sf.net
>            http://tuxkart.sf.net http://prettypoly.sf.net
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
>http://thinkgeek.com/sf
>_______________________________________________
>plib-users mailing list
>pli...@li...
>https://lists.sourceforge.net/lists/listinfo/plib-users
>

-- 
Brian Hayward

Re: [Plib-users] Onboard Sound Support?

[<ia...@sh...>]

> ha...@sl... wrote:
> > You can get a SB Live Value for like 30 bucks these days, I'd 
> suggest that 
> > over the sound blaster pci 128 (sb pci 128) cards.  The driver 
> allows 
> > multiple opens on /dev/dsp ...
> 
> Ooohhhh!!!  Nice!
> 
> That's so much better than the solution that some window managers
> provide where there is a sound mixing deamon that hogs /dev/dsp and
> doesn't let programs that are not written for that window manager
> work.
> 
> I may just head down to Fry's and score a couple of those to replace
> the Ensoniq's in my machines.
> 
> ---------------------------- Steve Baker -------------------------
> HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
> HomePage : http://www.sjbaker.org
> Projects : http://plib.sf.net    http://tuxaqfh.sf.net
>            http://tuxkart.sf.net http://prettypoly.sf.net

Hmmm! Something tells me I should just go out and purchase the SB Live card -- so that's what I did! I found one for $55 Canadian. I should be all set now.

Cheers,
Iaian

Re: [Plib-users] Onboard Sound Support?

[Curtis L. O. <cu...@me...>]

David Giraud writes:
> ha...@sl... wrote:
> 
> >You can get a SB Live Value for like 30 bucks these days, I'd suggest that 
> >over the sound blaster pci 128 (sb pci 128) cards.  The driver allows 
> >multiple opens on /dev/dsp and it also allows you to mute input's while 
> >you record from that particular input.
> >
> Do you guys think that this card would be a good choice?

This looks like the one ... $23 looks like a great price too ...
You would use the emu10k1 driver under linux ...

> http://www.liquidationetc.com/13/15490.htm?460
> 
> I'm very interested in the "multiple driver"  feature of this card (or 
> should I say drivers).  Would the above card let me have sound in 
> FlightGear and open multiple streams?
> 
> -David Giraud
> 
> P.S.  These things come with headphone ports right? :-)

As I understand it, yes to all of the above ...

Curt.
-- 
Curtis Olson   IVLab / HumanFIRST Program       FlightGear Project
Twin Cities    cu...@me...                  cu...@fl...
Minnesota      http://www.menet.umn.edu/~curt   http://www.flightgear.org

Re: [Plib-users] Onboard Sound Support?

[David G. <xh...@ma...>]

ha...@sl... wrote:

>You can get a SB Live Value for like 30 bucks these days, I'd suggest that 
>over the sound blaster pci 128 (sb pci 128) cards.  The driver allows 
>multiple opens on /dev/dsp and it also allows you to mute input's while 
>you record from that particular input.
>
Do you guys think that this card would be a good choice?

http://www.liquidationetc.com/13/15490.htm?460

I'm very interested in the "multiple driver"  feature of this card (or 
should I say drivers).  Would the above card let me have sound in 
FlightGear and open multiple streams?

-David Giraud

P.S.  These things come with headphone ports right? :-)

Re: [Plib-users] Onboard Sound Support?

[Curtis L. O. <cu...@me...>]

Steve Baker writes:
> ha...@sl... wrote:
> > You can get a SB Live Value for like 30 bucks these days, I'd suggest that 
> > over the sound blaster pci 128 (sb pci 128) cards.  The driver allows 
> > multiple opens on /dev/dsp ...
> 
> Ooohhhh!!!  Nice!
> 
> That's so much better than the solution that some window managers
> provide where there is a sound mixing deamon that hogs /dev/dsp and
> doesn't let programs that are not written for that window manager
> work.
> 
> I may just head down to Fry's and score a couple of those to replace
> the Ensoniq's in my machines.

You will be glad you did, even though you may not want a jet engine
roaring at the same time as your mp3's, it allows you to have multiple
apps running at the same time and gives you control over when and how
to start, stop, or silence your individual apps, rather than being
forced to close out every other audio app in order to play a hand of
solitaire or shoot an approach in a simulator or blow up a couple bad
guys between letting the dogs in our out.

Curt.
-- 
Curtis Olson   IVLab / HumanFIRST Program       FlightGear Project
Twin Cities    cu...@me...                  cu...@fl...
Minnesota      http://www.menet.umn.edu/~curt   http://www.flightgear.org

Re: [Plib-users] Onboard Sound Support?

[Steve B. <sjb...@ai...>]

ha...@sl... wrote:
> You can get a SB Live Value for like 30 bucks these days, I'd suggest that 
> over the sound blaster pci 128 (sb pci 128) cards.  The driver allows 
> multiple opens on /dev/dsp ...

Ooohhhh!!!  Nice!

That's so much better than the solution that some window managers
provide where there is a sound mixing deamon that hogs /dev/dsp and
doesn't let programs that are not written for that window manager
work.

I may just head down to Fry's and score a couple of those to replace
the Ensoniq's in my machines.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net

Re: [Plib-users] Onboard Sound Support?

[Steve B. <sjb...@ai...>]

Ben Woodhead wrote:
> I would recommend creative sound blaster myself. The pci ensonics are really
> cheap and work well. But I would stick with creative labs. They have some
> support for the cards in linux.

I have ensonic's in my two PC's at home - the support for them is OK too - although
in the SuSE 8.0/8.1 distro's, I couldn't get their analog joystick support to work.
That's weird because it's been fine in earlier releases.  However, I have USB joysticks
now - and that's becoming the standard - it's getting hard to buy analog joysticks
anymore.

Creative sound blaster probably has the best support of all though.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net

Re: [Plib-users] Onboard Sound Support?

[<ha...@sl...>]

You can get a SB Live Value for like 30 bucks these days, I'd suggest that 
over the sound blaster pci 128 (sb pci 128) cards.  The driver allows 
multiple opens on /dev/dsp and it also allows you to mute input's while 
you record from that particular input.  The es1370 driver doesn't let you 
do that.  MythTV (www.mythtv.org) requires this ability (it provides 
software to let you do television time-shifting and pausing of live tv).

I recently yanked my sound blaster pci 128 and replaced it with an 
official sb live value I got for $30 including shipping (found by 
searching www.pricewatch.com)

--
Brian


On Thu, 2 Jan 2003, Ben Woodhead wrote:

>I would recommend creative sound blaster myself. The pci ensonics are really
>cheap and work well. But I would stick with creative labs. They have some
>support for the cards in linux.
>
>Later, Ben
>
>----- Original Message -----
>From: "David Giraud" <xh...@ma...>
>To: <pli...@li...>
>Sent: Thursday, January 02, 2003 1:29 AM
>Subject: Re: [Plib-users] Onboard Sound Support?
>
>
>> So if I were to buy a new soundcard for my linux comp (cheap as possible)
>what would you guys recommend?
>>
>> -David Giraud
>>
>>
>> -------------------------------------------------------
>> This sf.net email is sponsored by:ThinkGeek
>> Welcome to geek heaven.
>> http://thinkgeek.com/sf
>> _______________________________________________
>> plib-users mailing list
>> pli...@li...
>> https://lists.sourceforge.net/lists/listinfo/plib-users
>>
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
>http://thinkgeek.com/sf
>_______________________________________________
>plib-users mailing list
>pli...@li...
>https://lists.sourceforge.net/lists/listinfo/plib-users
>

-- 
Brian Hayward

Re: [Plib-users] Onboard Sound Support?

[Curtis L. O. <cu...@me...>]

David Giraud writes:
> So if I were to buy a new soundcard for my linux comp (cheap as
> possible) what would you guys recommend? 

I've had really good luck with the sound blaster lives.  The drivers
allow more than one program to play sound and everything get's mixed
appropriately on the card ... this is really convenient.  If you have
your mp3 player running for instance, you can still start up
flightgear and it can still play sound too ... rather than getting
locked out or starting up with sound disabled.

Regards,

Curt.
-- 
Curtis Olson   IVLab / HumanFIRST Program       FlightGear Project
Twin Cities    cu...@me...                  cu...@fl...
Minnesota      http://www.menet.umn.edu/~curt   http://www.flightgear.org

Re: [Plib-users] Onboard Sound Support?

[Ben W. <za...@ec...>]

I would recommend creative sound blaster myself. The pci ensonics are really
cheap and work well. But I would stick with creative labs. They have some
support for the cards in linux.

Later, Ben

----- Original Message -----
From: "David Giraud" <xh...@ma...>
To: <pli...@li...>
Sent: Thursday, January 02, 2003 1:29 AM
Subject: Re: [Plib-users] Onboard Sound Support?


> So if I were to buy a new soundcard for my linux comp (cheap as possible)
what would you guys recommend?
>
> -David Giraud
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> plib-users mailing list
> pli...@li...
> https://lists.sourceforge.net/lists/listinfo/plib-users
>

Re: [Plib-users] Onboard Sound Support?

[David G. <xh...@ma...>]

So if I were to buy a new soundcard for my linux comp (cheap as possible) what would you guys recommend?

-David Giraud

[Plib-users] Re: Onboard Sound Support?

[Iaian B. <ia...@sh...>]

Curt is L. Olson wrote:

> I messed around with an onboard audio chip once (forget which one.)
> The Linux drivers for it really sucked.  They only supported a small
> subset of possible sound samples (i.e. certain fixed sample rates,
> etc.)  I spent about 2 hours on it, gave up, disabled the onboard
> audio, threw in a sound blaster live, and was done with it.  So, my
> best guess is that the drivers you have found for your chipset are
> incomplete and probably only support one sampling rate (which is
> probably different from the one FlightGear is trying to use.)
>
> Regards,
>
> Curt.

I switched over to the ALSA driver for my onboard audio chip and I did
not receive the 8 bit per sample warning. However, now when I try the
plib examples and FlightGear I get the following warning messages
respectively "slDSP: write: Resource temporarily unavailable" and
"WARNING: slScheduler: Too many pending callback events! slDSP: write:
Resource temporarily unavailable". These warnings along with a similar
audio configuration were previously reported by Felix Kuhling back on
July 25, 2002. In his mail, Felix provided a patch that fixed his
problem. Is that patch still available and if so can I get it? While
the patch may not be the best approach to fix my audio problem
(ie. the source of the problem appears to be the limitations of the
audio driver itself) it might be enough to get FlightGear running with
sound which is my ultimate goal. Note I did try the OSS/Linux driver
and I did get sound from both the plib examples and
FlightGear. However, I experienced annoying crackling noises which
increased in intensity when moving windows around the desktop. I
messed around with the driver configurations as suggested in the OSS/Linux
mailing but the crackling noise did not go away.

Thanks,

Iaian

Re: [Plib-users] Onboard Sound Support?

[Steve B. <sjb...@ai...>]

Curtis L. Olson wrote:
> 
> Yeah, that sounds pretty tempting.  I haven't taken a look at OpenAL
> at all yet, but I have a project here where I need to generate two
> distinct audio streams from a single application (either to the
> left/right stereo channels or to two separate sound cards, or two apps
> to two sound cards, or something ...)

Dunno if OpenAL supports two sound cards - and you might get significant
cross-talk if you try to generate two utterly unique sounds streams
using stereo on a single card.

For SL to be able to drive two cards, you'd have to create two
instances of slDSP - each driving a different /dev/dsp. That's
possible in theory but I've never heard of anyone trying it.

Since only the very lowest levels of SL support stereo (slDSP only),
I don't think SL would help you much with trying out a stereo
solution with one sound card.

OpenAL would probably make life very difficult too. OpenAL is not
a stereo system from the point of view of the API. It's a 3D sound
system that lets you position sound sources in 3D space - it figures
out how best to play those sounds on however many physical channels
you have.  Placing one sound source off to each side of the listener
won't necessarily produce a clean separation of the audio in stereo
space.

Depending on how much manipulation of these sound streams you need
in realtime, I think you'd be better off coding down at the OSS level.
Of course if you need portability (eg to Windoze platforms) then that's
no good either.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://web2.airmail.net/sjbaker1
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net