Re: [osg-users] sky model tracking the camera...
Look in the osghandglide example for MoveEarthySkyWithEyePointTransform; you will need to add the z-coordinate transform as well (currently 0.0 in the code). David ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] sky model tracking the camera...
Viggo,
Thanks much...:)
-Shayne
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Viggo Løvli
Sent: Tuesday, July 29, 2008 11:56 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] sky model tracking the camera...
Hi Shayne,
Add your sky node where-ever you want it in your scene-graph (not as child
of camera). Override the sky's transform node's traverse function and do
something like this:
void yourNode::traverse( osg::NodeVisitor nv ) {
switch( nv.getVisitorType() )
{
case osg::NodeVisitor::CULL_VISITOR:
setPosition( nv.getEyePoint() );
break;
}
}
Your node will be set to the camera position on each cull-traverse. It will
therefore work properly nomatter how many camera or render passes you add to
your scene.
Hope it helps,
Viggo
Date: Tue, 29 Jul 2008 18:14:25 -0600
From: [EMAIL PROTECTED]
To: osg-users@lists.openscenegraph.org
Subject: [osg-users] sky model tracking the camera...
Hello,
I would like to have my sky model track the camera position so that as the
camera moves, the sky model moves with it. To do this, would I add the sky
model transform as a child of the cameraNode? Does anyone have any code
snippets that may demonstrate how I might do this?
Thanks in advance
-Shayne
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Re: [osg-users] sky model tracking the camera...
David, Thanks for your help as well... -Shayne -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Spilling Sent: Wednesday, July 30, 2008 1:31 AM To: OpenSceneGraph Users Subject: Re: [osg-users] sky model tracking the camera... Look in the osghandglide example for MoveEarthySkyWithEyePointTransform; you will need to add the z-coordinate transform as well (currently 0.0 in the code). David smime.p7s Description: S/MIME cryptographic signature ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] sky model tracking the camera...
Hello, I would like to have my sky model track the camera position so that as the camera moves, the sky model moves with it. To do this, would I add the sky model transform as a child of the cameraNode? Does anyone have any code snippets that may demonstrate how I might do this? Thanks in advance. -Shayne smime.p7s Description: S/MIME cryptographic signature ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] sky model tracking the camera...
Hi Shayne,
Add your sky node where-ever you want it in your scene-graph (not as child of
camera). Override the sky's transform node's traverse function and do something
like this:
void yourNode::traverse( osg::NodeVisitor nv )
{
switch( nv.getVisitorType() )
{
case osg::NodeVisitor::CULL_VISITOR:
setPosition( nv.getEyePoint() );
break;
}
}
Your node will be set to the camera position on each cull-traverse. It will
therefore work properly nomatter how many camera or render passes you add to
your scene.
Hope it helps,
Viggo
Date: Tue, 29 Jul 2008 18:14:25 -0600From: [EMAIL PROTECTED]: [EMAIL
PROTECTED]: [osg-users] sky model tracking the camera...
Hello,
I would like to have my sky model track the camera position so that as the
camera moves, the sky model moves with it. To do this, would I add the sky
model transform as a child of the cameraNode? Does anyone have any code
snippets that may demonstrate how I might do this?
Thanks in advance…
-Shayne
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Re: [osg-users] sky model tracking the camera...
Forgot one thing...
At end of traverse function:
osg::Group::traverse( nv );
My sky is a osg::Group which hold a pointer to the postionTransfor object, so I
am therefore calling osg::Group::traverse and not something else :-)
Viggo
From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Wed, 30 Jul 2008 07:56:01
+0200Subject: Re: [osg-users] sky model tracking the camera...
Hi Shayne, Add your sky node where-ever you want it in your scene-graph (not as
child of camera). Override the sky's transform node's traverse function and do
something like this: void yourNode::traverse( osg::NodeVisitor nv ){
switch( nv.getVisitorType() ){case osg::NodeVisitor::CULL_VISITOR:
setPosition( nv.getEyePoint() );break;}} Your node will be set to
the camera position on each cull-traverse. It will therefore work properly
nomatter how many camera or render passes you add to your scene. Hope it
helps,Viggo
Date: Tue, 29 Jul 2008 18:14:25 -0600From: [EMAIL PROTECTED]: [EMAIL
PROTECTED]: [osg-users] sky model tracking the camera...
Hello,
I would like to have my sky model track the camera position so that as the
camera moves, the sky model moves with it. To do this, would I add the sky
model transform as a child of the cameraNode? Does anyone have any code
snippets that may demonstrate how I might do this?
Thanks in advance…
-Shayne
Få Hotmail du også. Windows Live Hotmail nå med 5000 MB gratis lagringsplass.
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