Hi Dave,
Did you have any plans for implementing helper methods for device selection
capture inside the overlay?
I'm thinking of an application where you might display a map of your
'universe' in the overlay, and move the user to the location they click on
in the overlay.
Just a thought. Your l
Hi everyone,
As part of a project I'm working on, I need to overlay some text (and
possibly some graphic images) on top of a Canvas3D. The basic idea is to
create a 'Heads-Up Display' on top of Java3D generated content.
So far, I've tried overriding the Canvas3D paint() method, with no
success.
Hi:
I'm getting the following error and I cannot figure out why:
Exception occurred during event dispatching:
java.lang.NullPointerException
at
javax.media.j3d.GeometryArrayRetained.setCoordinates(GeometryArrayRetained.java:
2680)
at javax.media.j3d.GeometryArray.setCoord
> > 2. Overlay is implemented using textured quads.
>
> Why have you choosen quads instead of rasters ?
I used texture quads on a project I was working on some time ago, although it
was not as feature rich as the one David is talking about.
But why use rasters? I havent worked with them before,
Woops, forgot to put this test file with my last message. This program is
a simple example of how you can use the OverlayGroup. (simple
modification of HelloUniverse).
B
On Mon, 11 Jun 2001, Blaine Alex Bell wrote:
> Here is the Overlay Library that I have implemented. I have tried
> minimizi
Here is the Overlay Library that I have implemented. I have tried
minimizing this implementation so it can be as flexible as possible.
Two classes exist, both in the package edu.columbia.cs.cgui.j3d:
FixedCanvas3D and OverlayGroup.
FixedCanvas3D is interchangeable with Canvas3D, and NEEDS to be us
Everything I've read about using texture by reference indicates what to do
for Solaris OpenGL and Win32 OpenGL. How about other platforms:
Direct3D
Linux / Blackdown JVM/J3D
--Mark
Mark Ferneau240-462-6262 (cell)
Director of Adv. Technology 801-437-4608 (efax)
>Delivered-To: [EMAIL PROTECTED]
>MIME-Version: 1.0
>Date: Mon, 11 Jun 2001 21:10:56 +0200
>From: Joachim Diepstraten <[EMAIL PROTECTED]>
>Subject: Re: [JAVA3D] readRaster when to call?
>To: [EMAIL PROTECTED]
>
>Ehlo
>
>Not only that the speedup is tremendously. And another thing
>is odd the light
"Yazel, David J." wrote:
> 17. No plans to implement resize because of the issus involved in rebuilding
> the sub-textures. Would be easier to just make a new one. We might support
> use of model-clips to clip in from a maximum size.
I was trying to do overlay system some time ago and failed.
Hmm...
Maybe your card uses the Zbuffer as an integer, and you
are trying to interpret it as a float??
Just a guess.
-Kyle
--
_
---ooO( )Ooo---
Kyle J. McDonald
"Yazel, David J." wrote:
> 2. Overlay is implemented using textured quads.
Why have you choosen quads instead of rasters ?
Artur
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Ehlo
Not only that the speedup is tremendously. And another thing
is odd the lighting of the scene is suddenly differnt. It's
the exact opposite as in D3D! As if the normals or the light
source is suddenly facing in the opposite direction.
I think I better stay away from the D3D interface in the
Hi Joachim,
Bug 4468363 -
D3D: Raster getDepthCompoent did not return [0..1] range for
DepthComponentFloat
is submit for this. This happen in DirectX version which
we should manually divide the z buffer content get back
from depth buffer by depth buffer depth value. (Unlike
OGL which do th
Ehlo
Yep it's definitly connected to the interface. I switched from
Direct3d to OpenGL and now I get values between 0.0-1.0. So it
seems to me that this is actually a bug in the D3D Interface
EOF,
J.D.
--
Jmark2k+1 (http://www.antiflash.net/jmark)
Test the performance of your PC online!
=
> Date: Fri, 8 Jun 2001 14:44:54 -0400
> From: Jean Laleuf <[EMAIL PROTECTED]>
> Subject: [JAVA3D] java3d, javawebstart, and javaOne?
> To: [EMAIL PROTECTED]
>
> A little while ago it was suggested that the j3d team might take advantage
> of JavaOne to re-release j3d in a JavaWebStart module. Is t
Hi
On Mon, 11 Jun 2001, Yazel, David J. wrote:
> I always get 0..1 back.
Well I don't :(. Maybe a driver/interface problem?
I get 1.6777215E7 instead of 1.0
EOF,
J.D.
--
Jmark2k+1 (http://www.antiflash.net/jmark)
Test the performance of your PC online!
==
I always get 0..1 back.
-Original Message-
From: Joachim Diepstraten
[mailto:[EMAIL PROTECTED]]
Sent: Monday, June 11, 2001 2:40 PM
To: [EMAIL PROTECTED]
Subject: Re: [JAVA3D] readRaster when to call?
Ehlo
Hmm after checking the documentation again. The values should actually
lie betwe
Ehlo
Hmm after checking the documentation again. The values should actually
lie between [0,1] with a DepthComponentFloat but they don't. They lie
between 0 and 2^24-1. Is this a bug, or am I doing something wrong?
EOF,
J.D.
--
Jmark2k+1 (http://www.antiflash.net/jmark)
Test the performance of
We have started working on an overlay library for java3d. I know this is
something that might be of interest to all of you. Initial tests are
proving very favorable. We are seeing speeds which rival video textures,
which means limited by texture transfer time. We will be releasing the code
when
>Delivered-To: [EMAIL PROTECTED]
>MIME-Version: 1.0
>Date: Mon, 11 Jun 2001 15:20:48 +0800
>From: Xiang Xu <[EMAIL PROTECTED]>
>Subject: [JAVA3D] flickering cursor
>To: [EMAIL PROTECTED]
>
>Hi,
>
>When I point my cursor to the Applet, the cursor always flickers. Anyone who
>know how to solve this
hi there to all,
I'm just wondering. With regards to system performance, which one is
better, adding a Behavior class (this behavior only uses, say, mouse and
keyboard inputs) or implementing the
java.awt.event.MouseListener/MouseMotionListener/KeyListener? What are the
advantages/disadvan
My cursor behaves in the same way under Win2000. I have also noticed the rendering is slowed down considerably. If the mouse is used to rotate the scene when dragged, the speed increases dramatically if the dragging continues outside of the internal frame where the Canvas3D is placed.
Is there an
We get the same effect with Windows2000 when a behavior consumes 100% (it
wakeups with a wakeUpOnElapsedFrames(0) condition)of the CPU.
If this is your problem, you must modify the cursor's configuration in the
O.S
> -Mensaje original-
> De: Discussion list for Java 3D API
> [mailto:[EMA
Hi,
When I point my cursor to the Applet, the cursor always flickers. Anyone who
know how to solve this problem?
Thanks in advance.
Xiang Xu
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