Re: [JAVA3D] possible improvements

2002-02-13 Thread Artur Biesiadowski
Justin Couch wrote: > My > understanding of the system at the moment is that even if you have > hardware MPEG support, the way J3D is structured is that the frame must > come off the video card and then then get written back to it again > (texture byRef stuff). That's really inefficient and I woul

Re: [JAVA3D] possible improvements

2002-02-13 Thread Justin Couch
Artur Biesiadowski wrote: > Maybe there is a chance of using VolatileImage for that ? Can JMF render > to VolatileImage ? That's what I've been trying to find out. However, the problem with that is that if you go textureByRef then you are *not* supposed to change the source image until you get a

Re: [JAVA3D] Java 3D and Java Web Start

2002-02-13 Thread Pierce, Gregory (TBS)
Title: RE: [JAVA3D] Java 3D and Java Web Start It is currently not possible to auto-download Java3D through webstart but according to people within the bowels of Sun its coming very soon now. > -Original Message- > From: Mona Wong [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, February 1

Re: [JAVA3D] Java 3D and Java Web Start

2002-02-13 Thread Yazel, David J.
Title: RE: [JAVA3D] Java 3D and Java Web Start I don't think the phrase "within the bowels of..." should ever be used   It makes me queasy.   hehe   Dave -Original Message-From: Pierce, Gregory (TBS) [mailto:[EMAIL PROTECTED]]Sent: Wednesday, February 13, 2002 11:02 AMTo: [EMAIL

[JAVA3D] MouseBehavior & reset Flag

2002-02-13 Thread Raj Vaidya
This is kinda weird... My geometry seems to jump when I enable MouseBehavior after having previously disabled it. Just based on a cursory glance of the MouseBehavior class, should the "reset" boolean field be set equal to true upon disabling a MouseBehavior ? still trying to debug Thanks i

[JAVA3D] newbie question

2002-02-13 Thread Michael Newcomb
I'm in desperate need of some newbie help! Think the earth. I've got two points on the Earth, the upper left and lower right of a rectangle (think square, not box). Now those two points lie on a plane. I know which plane because a vector from the center of the earth (0,0,0) to the center of th

Re: [JAVA3D] MouseBehavior & reset Flag

2002-02-13 Thread Salsby, Kent
Jam, I followed the instructions for setting up a new Struts project. I followed the instructions to the letter... There is no Index.jsp in available to right click on. Whassup? btw, Till now, I haven't been able to get Struts to work in JBuilder so I've been using my favorite text editor. I

Re: [JAVA3D] MouseBehavior & reset Flag

2002-02-13 Thread Salsby, Kent
Sorry for this posting... please disregard. Kent -Original Message- From: Salsby, Kent [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 13, 2002 9:55 AM To: [EMAIL PROTECTED] Subject: Re: [JAVA3D] MouseBehavior & reset Flag Jam, I followed the instructions for setting up a new Str

Re: [JAVA3D] newbie question

2002-02-13 Thread Artur Biesiadowski
Michael Newcomb wrote: > Think the earth. I've got two points on the Earth, the upper left and lower > right of a rectangle (think square, not box). Now those two points lie on a > plane. I know which plane because a vector from the center of the earth > (0,0,0) to the center of the square is

[JAVA3D] Three performance questions

2002-02-13 Thread Jacob Marner
Hi, I have a few performance questions (I am fairly new to Java3D but has used OpenGL for quite some time) 1. --- There seem to be some people that think that java3D immediate mode is faster than compiled retained mode. However, in the Sun java3d faq it says the opposite. So which is

Re: [JAVA3D] Three performance questions

2002-02-13 Thread Chien Yang
Jacob, > > Hi, > I have a few performance questions > > (I am fairly new to Java3D but has used OpenGL for quite some time) > > 1. > --- > There seem to be some people that think that java3D immediate > mode is faster than compiled retained mode. However, in the > Sun java3d faq it sa

Re: [JAVA3D] Three performance questions

2002-02-13 Thread Jacob Marner
Excellent! Thanks for the answer. I am very impressed with the amount of support given here. Jacob Marner - Original Message - From: "Chien Yang" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, February 13, 2002 20:00 Subject: Re: [JAVA3D] Three performance questions > Ja

Re: [JAVA3D] Three performance questions

2002-02-13 Thread Fred Klingener
- Original Message - From: "Chien Yang" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, February 13, 2002 2:00 PM Subject: Re: [JAVA3D] Three performance questions > > 2. > > --- > > > > It seems that everybody believes that the placement of viewer > > should be

Re: [JAVA3D] Three performance questions

2002-02-13 Thread Chien Yang
Fred, > > > > The invertion to the view's transform, is a once per frame > cost. > > The transform change above the scene is a per object cost > (including > > TG, SG, S3D ... ), and such operation can be very expensive. > > Really? You compute the whole chain from scratch for every > object for

[JAVA3D] Games with VRML & Java3d : New Stuff: PacMan with Doom View

2002-02-13 Thread P. Flavin
Wow, Thank you, we have a 3d Pac-Man in Java3d from Germany: Pack-Man in Java3d: 3 Views: Doom, 3d, & Classic & etc. http://www.stormzone.de/uni/Hauptstudium/CGPR/Labyrinth/doc/images/pac2k_3views.jpg http://www.stormzone.de/uni/Hauptstudi

Re: [JAVA3D] newbie question

2002-02-13 Thread Michael Newcomb
Yeah I'm not getting it. How many Quaternions will you have? Do you build one for each axis (x,y,z)? Once you have them, how do you get them all into a Transform3D so I can transform the original points into my new system? Let's use an example. two points - p1 = 50,75,50 (upper left of re

Re: [JAVA3D] Java 3D and Java Web Start

2002-02-13 Thread Dutchie Programmer
Title: RE: [JAVA3D] Java 3D and Java Web Start At the moment you can just include the java3D jar files with the rest of your jars, and add the native libs like you would if they were yours and java3D will work fine with webstart. You also have to load the native libs with System.loadLibrar

Re: [JAVA3D] newbie question

2002-02-13 Thread Michael Newcomb
A simpler example is A rectangle, (10,0,10) (20,0,10) (10,0,20) (20,0,20). The middle is (15,0,15). I want that first translated so that the center is now at 0,0,0. So, the corners should now be (-5,0,-5) (5,0,-5) (-5,0,5) (5,0,5). I know how to do the above. I just get a vector to the m

Re: [JAVA3D] newbie question

2002-02-13 Thread Kasparian, Raffi J.
You need a Transform3D set to a Rotation. The problem is you don't know what the rotation is -- you just know how you want the object to look after its been rotated. We need to compute an axis and an angle to rotate around that axis. Here is some quick and careless pseudo-code that should give yo

Re: [JAVA3D] Games with VRML & Java3d : PacMan implementation details

2002-02-13 Thread P. Flavin
Greetings ... Your problem with the VRML was with the VRML loader ... You used the NCSA Loader mentioned in j3d.org FAQ which has many known problems : which ironically is why it's in the j3d.org FAQ :^( Have you tried the VRML Loaders written by Sun ( the 'old' loaders ), or the 'new' V

[JAVA3D] Java3D 1.2.1 under JVM 1.4

2002-02-13 Thread Yuri Nikishkov
Title: Java3D 1.2.1 under JVM 1.4 Hi all, I have been testing Java3D 1.2.1_02 under new release candidate of JVM 1.4.0. It works fine on Sparc-Solaris, but on Win2K I have a problem. No exception or error is thrown, everything seems to be functional but nothing is displayed on a Canvas. I tr

[JAVA3D] waitForOffScreenRendering goes CPU hog

2002-02-13 Thread Bradley White
I have the following Branch group for the View Platform side of the scene graph: VP Viewa --- Canvas3Da | | Viewb -- Canvas3Db | | Canvas3Dc (Off screen canvas) The Canvas3Da node and its View node represents an alternative view of the 3D world is created thus:

Re: [JAVA3D] Java3D 1.2.1 under JVM 1.4

2002-02-13 Thread Doug Twilleager
We will be releasing Java 3D 1.2.1_04 very soon, which will fully support JDK 1.4.0. In the meantime, as you have seen, Java 3D 1.3 beta1 does work with JDK 1.4.0. Doug Twilleager Java 3D Team Sun Microsystems >Delivered-To: [EMAIL PROTECTED] >MIME-Version: 1.0 >Subject: [JAVA3D] Java3D 1.2.1

[JAVA3D] Multi-platform installers

2002-02-13 Thread Yuri Nikishkov
Title: Multi-platform installers Hi all, Does anybody have experience with multi-platform installers? I have noticed that Java3D uses InstallAnywhere. There is also MultiPlatform InstallShield. What are their pros and cons? Does InstallAnywhere run silently? Another question: do you normall

Re: [JAVA3D] waitForOffScreenRendering goes CPU hog

2002-02-13 Thread Kelvin Chung
Hi Bradley, You can try to press Ctrl-Break and see where it hangs from the stack trace. It would be great if you can send us a complete test program to investigate. A possible workaround maybe calling waitForOffScreenRendering() inside a Behavior thread instead of user thread. Thanks. -

Re: [JAVA3D] Java3D 1.2.1 under JVM 1.4

2002-02-13 Thread Guang Bin Liu
I believe my problem encountered last week was related to this. I can not display the stereo images after installing JVM 1.4, which worked well before with JVM 1.3 and Java3D 1.3. By the way, between java3D 1.2.1_04 and Java3D 1.3 beta1, which is newer and better? G.B. Liu --- Yuri Nikishkov

Re: [JAVA3D] Java3D 1.2.1 under JVM 1.4

2002-02-13 Thread Justin Couch
Guang Bin Liu wrote: > 1.3 and Java3D 1.3. By the way, between java3D > 1.2.1_04 and Java3D 1.3 beta1, which is newer and > better? 1.2.1_04 is newer (it isn't out yet) and 1.3 beta 1 is better :) -- Justin Couch http://www.vlc.com.au/~justin/ Java Architect & Bit Twidd

[JAVA3D] Removing Shpa3D from a live SceneGraph

2002-02-13 Thread Durga.Banda
Hello All, How can I remove a Shape3D object or a TransformGroup from a live SceneGraph. ravi === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For genera