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From: Kenneth B. R. <kbr...@al...> - 2001-10-01 07:25:52
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> OK, now I change the state in the mouse and keyboard callbacks, but the > problem is when I load a texture in display method, it cost time, well I > load the textures, and I catch them, but in my aplication I fly over > terrain, and I have to load textures while I am moving. > > How can I make a correct context, are there any example? You might want to look at the Grand Canyon demo at http://java.sun.com/products/jfc/tsc/articles/jcanyon/ This demo loads textures in a background thread and hands them off to the main thread. It uses JDK 1.4-specific APIs (and needs to be updated once GL4Java 2.8.0 is out) but the structure is reusable; see terrain.AsyncFetcher. |
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From: Sven G. <sgo...@ja...> - 2001-09-28 23:58:28
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Friday 28 September 2001 17:40, Ricardo Olanda wrote: > ----------------- > OK, now I change the state in the mouse and keyboard callbacks, but the > problem is when I load a texture in display method, it cost time, well I > load the textures, and I catch them, but in my aplication I fly over > terrain, and I have to load textures while I am moving. > > How can I make a correct context, are there any example? > Thanks > read the demo's there are listener modell demo's like gears and derivation ones (the old style of overwriting functions).. look in demos/MiscDemos for example (seek for gljMakeCurrent/gljFree pair's) you should update to the new gl4java @ sourceforge 2.8.0.5 prerelease, cause context switching is updated for your application, you should better buffer/read your textures before using them ! peace, sven - -- my concern about the current attack: http://www.jausoft.com/20010911-wtc/ mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440 ; fax : +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7tQ6fHdOA30NoFAARAtXDAKCu4MDNGP3lxEEbbUz3NBjmQ0rGTwCfWZui ugLjIMW6mk2TCTummI5+kr0= =YewQ -----END PGP SIGNATURE----- |
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From: Ricardo O. <rio...@ya...> - 2001-09-28 15:38:33
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-----Mensaje original----- De: gl4...@li... [mailto:gl4...@li...]En nombre de Kenneth B. Russell Enviado el: viernes, 28 de septiembre de 2001 17:02 Para: Ricardo Olanda CC: gl4...@li... Asunto: Re: [gl4java-usergroup] Problems with textures and gl parameters > I have a problem, I only can load textures in the display method, or in the > init, my aplication read a file with urls of images, and I want to load > them when I read the text file, but I can't, it says me: > "GLUT : Warning in (unamed): GL error: operation not valid" > > when I try to execute: > TextureLoader texLoader = new AWTTextureLoader(this,gl,glu); > > If I execute this in the display function it works ok. You need a valid OpenGL context in order to make OpenGL calls. GL4Java automatically makes the context current before calling display(), init(), reshape(), and a couple of other routines. While you can force the context to be made current outside of these routines, you may find it easier to rearrange your initialization code to run inside these. In a couple of applications I've written, the keyboard and mouse callbacks (which execute in the AWT thread without an OpenGL context available) simply set some state which is then processed in display(). _ ----------------- OK, now I change the state in the mouse and keyboard callbacks, but the problem is when I load a texture in display method, it cost time, well I load the textures, and I catch them, but in my aplication I fly over terrain, and I have to load textures while I am moving. How can I make a correct context, are there any example? Thanks _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com |
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From: Kenneth B. R. <kbr...@al...> - 2001-09-28 15:01:54
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> I have a problem, I only can load textures in the display method, or in the > init, my aplication read a file with urls of images, and I want to load > them when I read the text file, but I can't, it says me: > "GLUT : Warning in (unamed): GL error: operation not valid" > > when I try to execute: > TextureLoader texLoader = new AWTTextureLoader(this,gl,glu); > > If I execute this in the display function it works ok. You need a valid OpenGL context in order to make OpenGL calls. GL4Java automatically makes the context current before calling display(), init(), reshape(), and a couple of other routines. While you can force the context to be made current outside of these routines, you may find it easier to rearrange your initialization code to run inside these. In a couple of applications I've written, the keyboard and mouse callbacks (which execute in the AWT thread without an OpenGL context available) simply set some state which is then processed in display(). |
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From: Ricardo O. <ro...@gl...> - 2001-09-28 10:37:51
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I have a problem, I only can load textures in the display method, or in the init, my aplication read a file with urls of images, and I want to load them when I read the text file, but I can't, it says me: "GLUT : Warning in (unamed): GL error: operation not valid" when I try to execute: TextureLoader texLoader = new AWTTextureLoader(this,gl,glu); If I execute this in the display function it works ok. My question is: Only can execute this function inside display function and init function? I try to do this in the KeyPressed function, and I have the same problem. If I change the parameters,like :"gl.glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);" in the KeyPressed function This don't take effect. I change a variable in Keypressed, and in display function I put the same code, and works, I think it's the same problem, I only can do things of opengl in Init or in display, it's correct? Have this a solution? Thank you |
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From: aNt <an...@to...> - 2001-09-21 17:10:28
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Is there anyway of having a GLCanvas but not showing it on screen? I would like to render off screen then save to file. I don=B9t wont to render anythin= g to the screen or open any Frames or windows. Is there anyway of doing this? aNt |
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From: Kenneth B. R. <kbr...@al...> - 2001-09-17 07:39:43
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> It was for Win98 actually :) I dont think I tried it under Win2k I've had fairly good luck with NVidia's reference drivers. I would recommend upgrading to their new Detonator XP pack for Windows 98, or better yet upgrade to Win2k. |
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From: Shane B. <Sha...@ac...> - 2001-09-17 03:05:38
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It was for Win98 actually :) I dont think I tried it under Win2k - Shane |
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From: Kenneth B. R. <kbr...@al...> - 2001-09-17 02:55:42
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> Back to the coding stuff. Is there a way to make use of the Nvidia Opengl > libraries WITHOUT breaking? I have tried and failed dismally... What platform? NVidia's drivers work great with OpenGL for Java on NT4 and Win2k. If on GNU/Linux, are you using one of the supported distributions? |
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From: Shane B. <Sha...@ac...> - 2001-09-16 22:57:32
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Hey guys, Back to the coding stuff. Is there a way to make use of the Nvidia Opengl libraries WITHOUT breaking? I have tried and failed dismally... - Shane ************************************************************************************* Caution - This e-mail and its contents contain privileged information that is intended solely for the recipient. If you are not the intended recipient you are hereby notified that any use, dissemination, distribution or reproduction of this e-mail is prohibited. If you have received this e-mail in error please notify the Postmaster at pos...@ac... immediately. Any views expressed in this e-mail are of the sender and may not necessarily reflect the views of ACI Packaging ************************************************************************************* |
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From: Sven G. <sgo...@ja...> - 2001-09-15 14:04:44
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 i have added a "guestbook" and some little articles at: http://www.jausoft.com/20010911-wtc/ also i do add (if you do not allow, please tell me) some mailings to an archive there .. all data will be preserved and _not_ taken from the web. if you would like a copy of some files just take 'em, or just email me. peace, sven - -- my concern about the current attack: http://www.jausoft.com/20010911-wtc/ mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440 ; fax : +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7o1/uHdOA30NoFAARAuFAAJoDhjsz1M0rZFtH0uIrfJtP7C3IWACeKmTO lFMGuxqA7LYhDHS1a+0rGrQ= =e0uj -----END PGP SIGNATURE----- |
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From: Sven G. <sgo...@ja...> - 2001-09-13 09:19:40
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
my experience in english is not enough to express
how much i am upset about the current terrorism,
which has happened against the human beings.
i cannot believe - as i never believed in war and death.
i cannot imaging which people and how people can do
such evil things.
fanatic people with a misteached idea of
religion and love declared war against
the human beings, freedom life, democracy, ...
missing education, missing enlightenment,
missing wisdom and missing love
allows people to think killing can be a solution
or appropriate way of public-relations.
extreme islamists does not follow the goals of the islam
the leader of such terror organisations betrayed their religion,
for example like the christians crusades etc.
misleaded people claims rights and land,
just because of history tales and religions.
since we are not able to enlight such people,
we must expect further attacks.
this is an unequal war, because the world is not able
to revenge those attacks, because neither you can hit an
ideology with weapons,
nor with words and wisdom (-> fanatics).
of course we can bomb afghanistan,
of course we can kill people, inocent people inclusive,
of course we may find this terror group and punish them,
but this does not make a change in the heads of this evils.
don't make me wrong, i do not want to compare terror attacks
or any war, like the ones of
- ETA activities
- Germany 3rd Reich with Hitler against jews, gay's, ..
- Hamas and Jihad versus Israel (both parties does terror)
- RFA activities
- Serbien against albanic and other minorities
- UCK activities
- USA against Native Human Beings Of America
the current attack shows a new quality of war
classic war may be over now,
classic weapons may be ineffective.
teach, lern, educate and love
sven goethel
http://www.jausoft.com/20010911-wtc/
- --
mailto:sgo...@ja...
www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/
voice : +49-521-2399440 ; fax : +49-521-2399442
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Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org
iD8DBQE7oHolHdOA30NoFAARApHSAKCIhWTtM9kilem52cFQCsXvlE7UowCfdlxN
Sh0ZEZKnAbu0/YBlvVuWbSQ=
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From: Sven G. <sgo...@ja...> - 2001-09-12 14:44:57
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tuesday 11 September 2001 21:26, Sven Goethel wrote: > http://www.jausoft.com is now located under http://www.jausoft.com/20010911-wtc/ (added a social button on the main index, which links to it) if you do have interesting URL's, informations, thoughts and meanings please feel _free_ to send this information at least to me. also, i am looking for a person named: Vincent Wright, 39 years of age, based in NYC now (based in Bremerhaven, Germany in 1988). thanxs in advance sven - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440 ; fax : +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7n3TSHdOA30NoFAARAi6vAKC3RyaL/f3spUaCja8S5nwucJ14nwCgplbd OIDntTqp/wvp772+vxps/Ns= =tWMo -----END PGP SIGNATURE----- |
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From: The P. <ph...@mu...> - 2001-09-12 13:48:12
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Thank you Sven. This will certainly be a trying times for Americans as we deal with our great anger and desires for revenge. As you say, words fail utterly. For the religious, I think we in America need mostly prayers that we will have the strength and wisdom to prevail over this incident in such a way that innocents are not hurt, and the criminals and conspirators are put on trial before man, and punished accordingly. --physic ph...@te... On Tue, 11 Sep 2001, Sven Goethel wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > dear mailinglist, > > my experience in english is not enough to express > how much i am upset about the current terrorism, > which has happened against the USA. > > i cannot believe - as i never believed in war and death. > > i cannot imaging which people and how people can do > such evil things. > > rest in peace . love > > peace, love & unity > sven > - -- > mailto:sgo...@ja... > www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ > voice : +49-521-2399440 ; fax : +49-521-2399442 > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.0.6 (GNU/Linux) > Comment: For info see http://www.gnupg.org > > iD8DBQE7nk9ZHdOA30NoFAARAmcZAKCqclfK+ni+Jgr92R0gSRC9WgRFzACgqM2f > pTVtHJGCJozkqNvAYZ+SMYw= > =N98O > -----END PGP SIGNATURE----- > > _______________________________________________ > gl4java-usergroup mailing list > gl4...@li... > https://lists.sourceforge.net/lists/listinfo/gl4java-usergroup > |
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From: Sven G. <sgo...@ja...> - 2001-09-11 19:26:22
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 http://www.jausoft.com you are wellcome to place your commentary .. (via email on mailinglist) peace -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7nmVSHdOA30NoFAARAgVvAJ95c1HiwYimQzF0TGyh7ah6mVLUJgCfW9WR v9pHGvMbiugvBDhOrkpIuLc= =GtOv -----END PGP SIGNATURE----- |
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From: Sven G. <sgo...@ja...> - 2001-09-11 17:52:41
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 dear mailinglist, my experience in english is not enough to express how much i am upset about the current terrorism, which has happened against the USA. i cannot believe - as i never believed in war and death. i cannot imaging which people and how people can do such evil things. rest in peace . love peace, love & unity sven - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440 ; fax : +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7nk9ZHdOA30NoFAARAmcZAKCqclfK+ni+Jgr92R0gSRC9WgRFzACgqM2f pTVtHJGCJozkqNvAYZ+SMYw= =N98O -----END PGP SIGNATURE----- |
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From: <NM...@th...> - 2001-08-30 14:59:27
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Hi, I'm a new user trying to figure out GL4Java and I am having a hairy time trying to get a GLJPanel running. Before I start asking dumb questions can someone tell me where I can download the latest GL4Java FAQ? I have followed numerous links and all are 404. Thanks! Noah |
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From: Shane B. <Sha...@ac...> - 2001-08-27 23:17:03
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Hi Jiba, I had a look at using Opale Soya to create a game because it look like a fairly good implementation (on the surface). When I tried to use it I found it a little inefficient. One example was that it didn't use call lists at all, which I found suprising. I also found the use of the Beanary very confusing. As such I have started writing my own engine (but have not gone very fair at all, not due to not knowing how, just that RL keeps getting in the way :)). If your team would accept an outsider I would be willing to lend a hand on the project. Contact me at: sh...@oa... - Shane. Jiba <a1...@So...> on 27/08/2001 03:08:23 Please respond to gl4...@li... To: gl4...@li... cc: (bcc: Shane Blake/IT/Hawthorn/ACI_GLASS/AU) Subject: [gl4java-usergroup] [ANN] Opale.Soya 2 Hi, I just announce the start the Opale.Soya 2, a very high-level 3D engine. Opale.Soya can be used for any app, and is designed with games in mind. Of course, we use GL4Java for rendering ! New changes from the first version (=the Arkanae one) will include : - New modeling and animation package - New feature (BSP and octrees, portal, heighmap, scripting, ...) - We now use GLAnimCanvas (your thread sync is better than mine, Sven ;-) https://savannah.gnu.org/projects/opalesoya/ http://opale.soya.tuxfamily.org/ Jiba _______________________________________________ gl4java-usergroup mailing list gl4...@li... http://lists.sourceforge.net/lists/listinfo/gl4java-usergroup |
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From: Jiba <a1...@So...> - 2001-08-27 12:34:11
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Hi, I just announce the start the Opale.Soya 2, a very high-level 3D engine. Opale.Soya can be used for any app, and is designed with games in mind. Of course, we use GL4Java for rendering ! New changes from the first version (=the Arkanae one) will include : - New modeling and animation package - New feature (BSP and octrees, portal, heighmap, scripting, ...) - We now use GLAnimCanvas (your thread sync is better than mine, Sven ;-) https://savannah.gnu.org/projects/opalesoya/ http://opale.soya.tuxfamily.org/ Jiba |
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From: Sven G. <sgo...@ja...> - 2001-08-18 14:28:14
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Saturday 18 August 2001 01:17, Joe Warmbrodt wrote: > Sven and Abraham, > > thanks for both of your advice. I have followed your starting advice and > read through all of GL4Java. Now I'm thoroughly confused. ;) > > Actually, I have one more question. It looks like the methods you are > talking about, it is still necessary to open a visible window in order > to render anything. Is this true? I am trying to find a way to render > all my GL directly into a BufferedImage that is completely invisible at > all times. This will be for an image server program, so it can't keep > opening windows. > > Maybe I have misunderstood something? Maybe this is not even possible? > no - as i described, it must be possible to create an offscreen GLContext. then you can resize it and render into it the code can be seen at "gl4java.swing.GLJPanel::paintComponent" well, you do not need to show it like the swing implementation within an BufferedImage, in you case, you just should do your opengl rendering and then use the "gl4java.util.textures.TGATextureGrabber" as shown in "morph3d" ! cheers, sven > Thanks, > > Joe > > > _______________________________________________ > gl4java-usergroup mailing list > gl4...@li... > http://lists.sourceforge.net/lists/listinfo/gl4java-usergroup - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440 ; fax : +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7fntlHdOA30NoFAARAqnRAJ93j2m5xxp87YqeR3sx4FzjZnzhZQCcC7eM pTzezzYxvG+nJPs/Q8cJHdA= =sZM5 -----END PGP SIGNATURE----- |
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From: Joe W. <jo...@mo...> - 2001-08-17 23:17:02
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Sven and Abraham, thanks for both of your advice. I have followed your starting advice and read through all of GL4Java. Now I'm thoroughly confused. ;) Actually, I have one more question. It looks like the methods you are talking about, it is still necessary to open a visible window in order to render anything. Is this true? I am trying to find a way to render all my GL directly into a BufferedImage that is completely invisible at all times. This will be for an image server program, so it can't keep opening windows. Maybe I have misunderstood something? Maybe this is not even possible? Thanks, Joe |
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From: Sven G. <sgo...@ja...> - 2001-08-17 02:06:48
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday 16 August 2001 03:22, Joe Warmbrodt wrote: > All, > > I was wondering if someone could give me some advice. > > With GL4Java, I want to render an 3D image into an offscreen buffer and > save it as a GIF. > > I already know how to save a GIF file, and I already know how to render > stuff to the screen. > > I can't figure out how to render into an offscreen buffer (like maybe a > BufferedImage) and that's what is confusing me. > > Can anyone help with this? Any advice or starter info would be > appreciated. > > Thanks! > > jo...@mo... > 1.) save a rendered image .. look at the demo morph3d.java - uses an TGATextureGrabber -> TextureGrabber, - which grabs the pixels with the given spec. buffer name - and save's them into a file, e.g.: tga format well, it would be cool, if you can make another derivation of gl4java.util.textures.TextureGrabber, e.g. PNGTextureGrabber !! you can, of course use this with on- and offscreen rendering 2.) using offscreen rendering .. have a look at gl4java.swing.GLJPanel::paintComponent(..): usage of: GLContext.createOffScreenCtx that's it .. cheers, sven > > _______________________________________________ > gl4java-usergroup mailing list > gl4...@li... > http://lists.sourceforge.net/lists/listinfo/gl4java-usergroup - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440 ; fax : +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7fHwvHdOA30NoFAARAkWJAKCVBPBsih73aiOLDYnZ+uFrjC2aHwCgqUIT U7qhAwOBFfvGLQF5l7KXGgQ= =w5va -----END PGP SIGNATURE----- |
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From: Robert A. W. <raw...@mi...> - 2001-08-16 19:20:42
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Have you looked for anything like a QuadBuffer, SwapBuffer, or QuadSwap? BufferedImage definately sounds like a reasonable buffer name, but I would suggest looking around for any keywords on Quad-Buffering. Moreover, you might want to take a gander at Stereographics.com's developer program. Typically, there is a double buffer as the OpenGL/Java3D/GL4Java gets the images ready for rendering. Only, there are two threads of OpenGL/Java3D/GL4Java going at a time (Left & Right), so there are _four_ offscreen buffers that are drawn before the image gets 'shown' on the screen. Specifically, I would look for any references to quad, pre, post, double, swap, image, buffer, and so forth. Sorry, I don't have the GL4Java specs on hand, but I've worked with the Java3D and OpenGL stuff... Abraham ----------------------------------------------------------------------- Abraham Watson, A.B. Microsoft Certified Systems Engineer email: raw...@mi... cell: 773.469.9544 url: http://home.uchicago.edu/~rawatson ----------------------------------------------------------------------- On Wed, 15 Aug 2001, Joe Warmbrodt wrote: > All, > > I was wondering if someone could give me some advice. > > With GL4Java, I want to render an 3D image into an offscreen buffer and > save it as a GIF. > > I already know how to save a GIF file, and I already know how to render > stuff to the screen. > > I can't figure out how to render into an offscreen buffer (like maybe a > BufferedImage) and that's what is confusing me. > > Can anyone help with this? Any advice or starter info would be > appreciated. > > Thanks! > > jo...@mo... > > > _______________________________________________ > gl4java-usergroup mailing list > gl4...@li... > http://lists.sourceforge.net/lists/listinfo/gl4java-usergroup > |
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From: Joe W. <jo...@mo...> - 2001-08-16 01:22:29
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All, I was wondering if someone could give me some advice. With GL4Java, I want to render an 3D image into an offscreen buffer and save it as a GIF. I already know how to save a GIF file, and I already know how to render stuff to the screen. I can't figure out how to render into an offscreen buffer (like maybe a BufferedImage) and that's what is confusing me. Can anyone help with this? Any advice or starter info would be appreciated. Thanks! jo...@mo... |
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From: Tom N. <sky...@em...> - 2001-08-07 02:31:53
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Hi,
I am working with a research group which is developing software for a
high-resolution wall-sized tiled display system. We would like to get Java
applications running on the display, which uses a distributed version/subset
of OpenGL called WireGL (http://graphics.stanford.edu/software/wiregl/) .
However, there are some OpenGL calls that are currently unimplemented with
WireGL (listed at the bottom of this message). I've tried using gl4java on
simple demos like the Olympic Rings demos, and I get either a glGetProc or
push/pop attrib related errors. Would it be possible to use gl4java-based
programs without calling these unimplemented calls?
Unimplemented GL calls for WireGL
(http://graphics.stanford.edu/software/wiregl/bugs.html)
glCopyPixels
glCopyTexImage*
glCopyTexSubImage*
glGetPixelMap*
glGetPolygonStipple
glGetTexImage
glIsTexture
glPixelMap*
glPopAttrib
glPopClientAttrib
glPushAttrib
glPushClientAttrib
glReadPixels
glTexture3D
glFeedbackBuffer
glInitNames
glLoadName
glPassThrough
glPushName
glRenderMode
glSelectBuffer
Thanks,
Tom Nguyen
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