I resolve my problem in this way:
while(!(viewer.done))
{
//code that modify structure
viewer.(frame);
}
Thanks a lot.
Ignazio
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OK Paul..thanks a lot
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[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Paul Martz
Sent: Tuesday, April 21, 2009 1:16 PM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] Dynamic Modification..
Please take a look at the osgcallback example, it will be
@lists.openscenegraph.org
Subject: Re: [osg-users] Dynamic Modification..
Thanks..Accoding you I must extend the UpdatCallBack,in this way
class lux : public osg::Drawable::UpdateCallback {
virtual void operator()( osg::ShapeDrawable* drawable)
{
drawable ->setCo
Thanks a lot.I try to do what you suggested..Thanks
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Hello Ignazio,
So a last question..I change color for example for 3 seconds,after this time I
must set the default solid color..
And during this time others sphere must brighten..Thanks a lot..
It's up to you to define your application's behavior any way you like...
We can't really go around
Thanks, I change the methods like you..So a last question..I change color for
example for 3 seconds,after this time I must set the default solid color..
And during this time others sphere must brighten..Thanks a lot..
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Hello Ignazio,
Thanks..Accoding you I must extend the UpdatCallBack,in this way
class lux : public osg::Drawable::UpdateCallback
{
virtual void operator()( osg::ShapeDrawable* drawable)
{
drawable ->setColor(osg::Vec4(1,1,1,1));
}
};
Is what I speak ri
Thanks..Accoding you I must extend the UpdatCallBack,in this way
class lux : public osg::Drawable::UpdateCallback
{
virtual void operator()( osg::ShapeDrawable* drawable)
{
drawable ->setColor(osg::Vec4(1,1,1,1));
}
};
Is what I speak right?
Thank advance
Hello Ignazio,
I must apply a changing to an osg::ShapeDrawable element,not a osg:Node.Is
possible apply an update call back to a Drawable?
Please see the OSG reference docs.
http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00185.html#08ef7a88aa216afff5b072bf03ae6969
Hi Jean-Sébastien, I must apply a changing to an osg::ShapeDrawable element,not
a osg:Node.Is possible apply an update call back to a Drawable?
I remenber you my datastructure:
I have a osg::Group root,
an array of osg::ShapeDrawable drawable[]
an a osg::Geode geode.
then:
geode -> addDrawable(d
I'm not too good at callbacks as yet. But I'll certainly look @ the examples.
:)
Allen
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Thanks Allen..Now I try to do what you suggested me.
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Hi Allen,
welcome. And I believe the only way to change anything in osg dynamically is
to do so with function calls that make those changes within the viewer frame
loop like so:
As Robert said earlier today, that's one way, the other is to create an
update callback that you will attach to
welcome. And I believe the only way to change anything in osg dynamically is
to do so with function calls that make those changes within the viewer frame
loop like so:
while(!viewer.done())
{
// YOUR CODE GOES HERE TO CHANGE A
// NODE IN THE OSG SCENE TREE
// BEFORE osg Updates the sc
Thanks a lot Allen and Robert. I'll try to modify my source code with our
directions..
I explane you my true problem.I must change the solid color dinamically, during
the execution.
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kool robert, thx for the correction. I just pulled that code from an example I
found. It works but I never understood the details - I'm a newbie too. So all
the help I can get, I'll take it! :)
Thx again.
Allen
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HI Allen,
viewer.frame() calls viewer.updateTraversal(), and viewer.run() calls
viewer.frame() so your suggest frame loop would only call
updateTraversal() twice.
Instead to expand viewer.run() -> a frame loop with it's component
parts you do (please look at the implementation itself to confirm
t
Hey,
here's the article Paul is speaking about:
http://forum.openscenegraph.org/viewtopic.php?t=2190
I'm one of the guys in that discussion. I asked how to modify a line
dynamically.
Since you're using viewer.run(), that makes life difficult. I believe you'll
need to use the viewer frame loop
users@lists.openscenegraph.org
Subject: [osg-users] Dynamic Modification..
Hi,
I'm a new member of this forum..So if I make mistakes please apologize me..
I have a problem... :)
I create a 3d application(a simple application, I have a set of cones and
Cylinders).
The structure of application is :
osg::ref_ptr
Hi,
I'm a new member of this forum..So if I make mistakes please apologize me..
I have a problem... :)
I create a 3d application(a simple application, I have a set of cones and
Cylinders).
The structure of application is :
osg::ref_ptr root;
Cosg::Cone* unitCone;
osg::Cylinder* unitCylinder;
I
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