Messaggio della discussione su
HUD problem using ProximitySensor...
Path: g2news1.google.com!news4.google.com!news2.google.com!proxad.net!infeed-1.proxad.net!news3-e.free.fr!not-for-mail
Subject: Re: HUD problem using ProximitySensor...
From: O.L. <nowh...@invalid.net>
References: <42ba7977$1_2@x-privat.org>
Newsgroups: comp.lang.vrml
Message-ID: <mn.bac47d5630949049.18740@invalid.net>
X-Newsreader: MesNews/1.02.00.01
Date: Thu, 23 Jun 2005 11:48:37 +0200
MIME-Version: 1.0
X-Face: #0?irvdFiM!(Tpl}/tO%_kuSW_^9G5aeIEnY1uNPcd@N_U.B30\*[%N-cnqSC,rEfeq\m:b oR({RM{x03]Iv}^2xc7\J][^MkbL3DYdLevZ$&h0WbH!i:>O1i#FLy/mO2G~xMF<YSj^@q9sRC~iP> *uQnfN4xre8v9%0fqg;i.!ymm~6w2nEx);Q~Q*8&dUO(fn
Content-Type: text/plain; charset="iso-8859-15"; format=flowed
Content-Transfer-Encoding: 8bit
Lines: 158
Organization: Guest of ProXad - France
NNTP-Posting-Date: 23 Jun 2005 11:48:40 MEST
NNTP-Posting-Host: 213.36.172.191
X-Trace: 1119520120 news3-e.free.fr 31239 213.36.172.191:1328
X-Complaints-To: abuse@proxad.net
Hello,
You could use a HUD or a Layer2D/Layer3D extension node, but it's no
more pure VRML ...
I had the same problem when I tried to put an object very very close to
the "avatar" ...
Good luck :)
O.L.
bboy a exprimé avec précision :
> Hi everybody! :)
>
> I'm facing a problem that's really making me mad: i'm using a ProximitySensor
> to catch user viewpoint position and orientation, and using routes I move a
> box (that should be representing an hud) in front of the user camera...
>
> This trick is working if the user is not too much far from the "center" of
> the vrml world (coordinates 0, 0, 0)...but when he starts going away, let's
> say coordinates in order of 1.000.000, it all starts to flicker, jitter, and
> other strange behaviour... :(
>
> I need to let the user be able to go that far from the center of the vrml
> world beacause i'm using geo-vrml to let him navigate through some
> geo-referenced land representation, and the geovrml creates those nodes at
> location whose coordinates are in the order of 3-4.000.000, using vrml
> measure unit.
>
> Here you will find a page with two simple example of what I'm talking about:
> the vrml code is pretty the same, except for the "main" Transform node, whose
> translation field is set to 100, 100, 100 for the first one (that in fact is
> working correctly) and to 1.000.000, 1.000.000, 1.000.000 for the second, the
> one with the artifacts...
>
> http://snipurl.com/frxz
>
> Ah, btw, i'm using the last version of the cortona vrml viewer under
> windowsXP...
>
> Thank you! :)
>
>
> ps: if you mind, this is the vrml code...
>
> #VRML V2.0 utf8
>
> # Global objects
> Transform
> {
> translation 100 100 100
> # For the example with flickers, the translation is set to this:
> # translation 1000000 1000000 1000000
>
> children [
>
> DEF SENSOR ProximitySensor {
> size 10 10 10
> center 0 0 10
> }
>
> # Real-World objects <<<----
> Transform {
> children [
> DirectionalLight {
> ambientIntensity 0.8
> }
> Transform {
> translation 3 0 0
> children [
> Shape {
> appearance Appearance {
> material Material {
> diffuseColor 0 0 1
> }
> }
> geometry Cone {}
> }
> ]
> }
> Shape {
> appearance Appearance {
> material Material {
> diffuseColor 0 1 0
> }
> }
> geometry Sphere {}
> }
> Transform {
> translation -3 0 0
> children [
> Shape {
> appearance Appearance {
> material Material {
> diffuseColor 1 0 0
> }
> }
> geometry Box {}
> }
> ]
> }
> ]
> }
>
>
> #HUD objects <<<-----
> DEF HUDVIEW Viewpoint {
> description "HUD View"
> position 0 0 10
> }
> DEF HUD Transform {
> translation 0 0 10
> children [
> Collision {
> collide FALSE
> children [
> DirectionalLight {
> ambientIntensity 0.8
> }
> Transform {
> translation 0 -0.075 -0.2
> children [
> Shape {
> appearance Appearance {
> material Material {
> diffuseColor 1 0 1
> }
> }
> geometry Box {
> size 0.03 0.03 0.000000001
> }
> }
> ]
> }
> ]
> }
> ]
> }
> ]
> }
>
> # Routes to bind camera to hud
> ROUTE SENSOR.orientation_changed TO HUD.set_rotation
> ROUTE SENSOR.position_changed TO HUD.set_translation
> ROUTE SENSOR.position_changed TO SENSOR.set_center
--
Ceci est une signature automatique de MesNews.
Site : http://mesnews.no-ip.com
|
