Hi Kelvin
>Seems that you are using v1.2.1_01 from the line number.
> Please upgrade the Java3D version to v1.2.1_02. If the
> bug can be reproduced please send us a test case to
> investigate.
Well I've upgraded it but still the same Exception/StackTrace occures
could this be connected to if
hi
Is it possible to set different material
properties for the different sides of a face made double
sided by setting the polygonattribute to CULL_NONE.
basically I want the two sides of the shape to have different colors
How is this possible
regards
Saurabh
hi
8/21/01 11:26:30 AM, Saurabh Akhauri <[EMAIL PROTECTED]> wrote:
>Is it possible to set different material
>properties for the different sides of a face made double
>sided by setting the polygonattribute to CULL_NONE.
>
>basically I want the two sides of the shape to have different colors
>How
Hi Saurabh
> Is it possible to set different material
> properties for the different sides of a face made double
> sided by setting the polygonattribute to CULL_NONE.
Nope this is not possible. To overcome this you could instead add a second
(directional light coming from behind and change the co
For those of you with 3DLabs Graphics cards and are wanting stereo support,
I believe the bug has been fixed
http://www.3dlabs.com/support/troubleshooting/ap-13.htm
Regards
Sky
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Hi
I've got quite some interesting problem (I think).
Okay here's my scenario:
I've got a MainFrame containing a Canvas3D and a SimpleUniverse with a
Scenegraph. I've got a Button somewhere when you press on this one
a JDialog pops up containing also a Canvas3D and a SimpleUniverse.
I have all t
Hi,
This may be impossible in Java3D, but it is definitely
possible OpenGL. So I'm surprised that it is
impossible in Java3D.
Dola
--- Joachim Diepstraten
<[EMAIL PROTECTED]> wrote:
> Hi Saurabh
>
> > Is it possible to set different material
> > properties for the different sides of a face made
Ehlo Dola
> This may be impossible in Java3D, but it is definitely
> possible OpenGL. So I'm surprised that it is
That's right it would work under OpenGL. But definitly not under
DirectX. Maybe that's why it's left out. But I think only a SUN-Engineer
could answer that question
EOF,
J.D.
--
J
Certainly the scenegraph layout does impact performance in several
ways. The Sun engineers can answer this more accurately than I can (I
think Dave Yazel could shed more light on this too) but the biggest
impact I've seen is more in how you model an object. Rendering can clip
and completely igno
Is the OpenGL Full-Screen 'workaround' technique of using a Window object
sized to fill the current screen enough to gain the full advantage of
hardware acceleration? Does it depend on what graphics card you're using?
I'm using a Matrox Millennium G200, in case that makes a difference. My
progr
Hi Fergus
> I'm using a Matrox Millennium G200, in case that makes a difference. My
> always this slow in Java3D, or is my graphics card to blame or something?
Definitly your GFX-Card. Matrox G200 is a business office card not a
3d/gamer card so it's fillrate is awfull low. I would suggest to u
Hi Kevin,
If you want to do Collision Detection for terrain following etc then check
out the Behavior/Collision system included in the Java3D Fly Through demo.
This includes an extensible collision system using picking that can be used
for terrain following etc.
The demo is available (with sourc
>> always this slow in Java3D, or is my graphics card to blame or something?
>Definitly your GFX-Card. Matrox G200 is a business office card not a
>3d/gamer card so it's fillrate is awfull low. I would suggest to upgrade
>it at least to a G400 which is equal to a TNT2. I think the G200 lies
>somew
Hi all !!
I'm trying to animate a VRML world using a Timer to change its viewpoint in a
specified number of milliseconds. But the calls to start(), stop() from the Timer give
an AccessControlException from an applet (it works as an application). Is this a
thread problem ? If not, how can it wo
I think it's D3D that's the limiting factor. Isn't it d3d that does not
render back faces? I know OpenGL can, but my d3d experience is extremely
limited.
- Original Message -
From: "Dola Woolfe" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 21, 2001 7:53 AM
Subject:
John has covered this topic pretty well and accurate. I would like
to add some points to the following question :
If a scene can be represented by m Shape3D nodes. Will breaking the
scene into n Shape3D nodes help rendering performance ?
Where n > m.
There are atleast 3 factors need to be consid
Will it not serve your purpose to just put two faces each facing opposite
directions nearly on top of each other? It would double the number of faces
of course, but would do what you want.
Joel Shellman
Full Service Internet Solutions
[ Design | Flash | eCommerce | Backend | Database | Hosting |
Hi Michael,
You may see the Cube jitters if two separate behaviors
is used to change the camera and another behavior get
back the camera position and setting the cube's position.
The is due to the ordering of behaviors is not gaurantee
in v1.2.1 and the time interval from frames to frames
var
You can animate VRML models with Java3d using
the VRML Loaders developed by Sun and donated
to the Web3d.org ...
I've been working doing animation with VRML
and Java 1.1, and Java3d for several years,
it's a great combination, it works well, its fun,
you can animate Web3d's H-Anim Avatars with
I've developed a class that extends
com.sun.j3d.utils.picking.behaviors.PickRotateBehavior.
I developed an updateScene method for the new class, using as a model
code I found on the web for PickHighlightBehavior.
I need to find the closest vertex of the object hit by the current
pickray.
T
Hi,
Bug 4494571 is filed for this. This and the next problem
that you mention is most likely cause by sharing of
Primitives in geometry utility. We cache the first geometry
create and return it next time. To work around this,
pass GEOMETRY_NOT_SHARED in primflags.
public Sphere(float radius,
Maybe. It does not change your current desktop mode. If you do not receive
hardware accel in the current desktop mode, then you won't in "fullscreen"
because that fullscreen work around simply makes a window the size of the
desktop. Basically, you won't get any performace improvement and will
p
You are all probably aware of a commercial package called Magician, which provides Java
bindings to OpenGL (similar to GL4Java).
We are trying to integrate a Java3D display and a display written in Magician into one
application. We basically took the "HelloUniverse" Java3D demo and the "HelloWorl
Adrian,
Most likely your sphere doesn't have a material applied (i.e. it's
"invisible").
The best first step to debugging these issues is to look at the log
output. If you aren't getting any materials then you won't see
anything. Our loader doesn't render geometry unless it has a color.
Many p
> Delivered-To: [EMAIL PROTECTED]
> Delivered-To: [EMAIL PROTECTED]
> Date: Tue, 21 Aug 2001 16:18:27 -0700
> From: Adrian Meekings <[EMAIL PROTECTED]>
> Subject: [JAVA3D] Movies on walls
> To: [EMAIL PROTECTED]
>
> Hello again
>
> Im interested in hearing about presenting Movies such as MPEGs on
Hi people,
I've been trying to monitor the position of various objects as they are interpolated.
I figured that in that way, you could perform checks before the position of the object
is updated.
Since I'm kinda struggling, I'm just wondering if it is possible at all. I've tried to
printout t
Hello all
Im having dificulty seeing a simple sphere that Im loading using Starfire Research 3ds
loader (as a test) I placed ambient lighting within the scene
but still no luck. Can anyone please tell me what Im doing wrong?
The information to screen appears to inform me that the loader is work
Hello again
Im interested in hearing about presenting Movies such as MPEGs on walls of a j3d room
that Im building. Is this possible or do I have to do something like use an Alpha to
animate a series of "jpeg textures"?
Ive looked under the archives using mpeg, Movie, Animation etc but I eithe
Len, Human Animation is solved, with H-Anim & Java.
I'm sorry, I thought I had posted that fact to:
1) www-vrml,
2) h-anim,
3) java3d-interest
4) comp.lang.java.3d, comp.lang.vrml, comp.lang.java.programmer
Perhaps you had mislead by Aaron Walsh's "Core Web3d"
book or comments from Justin
Thanks Ill look into this...
Your right I didnt realise that about modelers. Trap for young players.
Cheers
A
- Original Message -
From: "John Wright" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, August 22, 2001 11:11 AM
Subject: Re: [JAVA3D] loading a 3ds file constructed
You could create a trigger using WakeupOnElapsedFrames(0); to try an update
the object position. This triggers on every frame so you should be able to
know exactly where the object is. To do collision prevention, you could try
an use greater bounds than necessary and after the WakeupOnCollisionEnt
Yes no details re colours. Unfortunately I can apply any range of colours in
Amapi and have them rendered (by Amapi ) but it appears they dont export
this information.
Just for kicks here is the sphere. Are you able to tell me if Im applying a
colour or texture ? the Amapi material editor is not
Hi Kelvin
>Bug 4494571 is filed for this. This and the next problem
What next problem? You mean the other mail with an interesting problem?
Hmm you're sure that it is related because it has nothing to do with
primitives I used own created basic Shape3Ds
> Primitives in geometry utility. We c
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