Re: [osg-users] HeadUpDisplay Problem
On Mon, 2008-11-03 at 21:48 +0200, Ümit Uzun wrote: > Hi Jeremy, > > Thanks for your detailed description. You are so helpful people :) But > firstly I should examine your API and samples then I will try to > implement my target operation on it, if I can't achive, I will be glad > to help me :) > > Thanks for your all efforts. And I am waiting porting osganimation in > osgWidget api. > > But I am so thoughtful about why I can't achive simple HUD operatıion > on textured Quad, and I wonder to know the reason. >From a quick cursory glance at your example it appears you're not setting colors for the vertexes--and you may want to disable lighting. Also, I don't see you setting the binding (PER_VERTEX, OVERALL, etc). Doing that will probably clear things up, but I could be missing something. At any rate, this is the kind of tedium osgWidget aims to abstract. :) > Best Regards. > > 2008/11/3 Jeremy Moles <[EMAIL PROTECTED]> > On Mon, 2008-11-03 at 21:10 +0200, Ümit Uzun wrote: > > Hi Jeremy, > > > > Thanks for reply. My target with creating HUD display is > playing > > osgMovie imagestreamed texture in it. If I can achive this > operation > > by osgWidget I glad to use this API. And if it is possible, > which > > osgWidget sample should I glimps? Because I have never tried > osgWidget > > before except looking built-in samples in osg. > > > Here's basically all you need: > > --- > > WindowManager* wm = new WindowManager(...); > Box* box= new Box(...); > Widget*widget = new Widget(...); > ImageStream* stream = new ImageStream(...); > > widget->setImage(stream, true); > > box->addWidget(widget); > > wm->addChild(box); > > viewer.setSceneData(wm->createParentOrthoCamera(...)); > > --- > > Send me your ImageStream data directly (not over the lists) > and I'll > whip up a real example if you wish. :) > > > > Best Regards. > > > > 2008/11/3 Jeremy Moles <[EMAIL PROTECTED]> > > On Mon, 2008-11-03 at 18:56 +0200, Ümit Uzun wrote: > > > Hi Folks, > > > > > > I have tried to create HUD for textured quad. I > have read > > all about > > > archive and looked to osgHUD sample but it isn't > working for > > textured > > > quad. And same time given code works for text. I > can create > > HUD text > > > on the screen but can not create textured quad on > the > > screen. I know > > > giving lots of code isn't good for you but I will > paste all > > of them if > > > anyone want to look for find out the problem. > > > > > > I really think you should try using osgWidget; even > in it's > > very young > > stage of development, it can handle easy stuff like > this > > without a > > hitch. And, of course, I'm very responsive to > questions about > > it so > > you're bound to get the help you need (except on the > weekends, > > which I > > waste playing video games). > > > > If I have my way, all e-mails about creating custom > "HUDs" > > will be > > gone. :) > > > > > > > If created texture quad add as a child to the root > node, it > > works > > > without giving any problem. But if add as a child > to the > > osg::Camera > > > node it get visible and is seen nothing. I think > so, the > > problem is in > > > osg::Camera node which was initilazed by; > > > > > > > > /--Camera-/ > > > // create a camera to set up the projection and > model view > > matrices, > > > and the subgraph to drawn in the HUD > > >osg::ref_ptr camera = new > osg::Camera; > > > > > >// set the projection matrix > > > > > > camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024)); > > > > > >// set the view matrix > > > > camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF); > > >camera->setView
Re: [osg-users] HeadUpDisplay Problem
Hi Jeremy,
Thanks for your detailed description. You are so helpful people :) But
firstly I should examine your API and samples then I will try to implement
my target operation on it, if I can't achive, I will be glad to help me :)
Thanks for your all efforts. And I am waiting porting osganimation in
osgWidget api.
But I am so thoughtful about why I can't achive simple HUD operatıion on
textured Quad, and I wonder to know the reason.
Best Regards.
2008/11/3 Jeremy Moles <[EMAIL PROTECTED]>
> On Mon, 2008-11-03 at 21:10 +0200, Ümit Uzun wrote:
> > Hi Jeremy,
> >
> > Thanks for reply. My target with creating HUD display is playing
> > osgMovie imagestreamed texture in it. If I can achive this operation
> > by osgWidget I glad to use this API. And if it is possible, which
> > osgWidget sample should I glimps? Because I have never tried osgWidget
> > before except looking built-in samples in osg.
>
> Here's basically all you need:
>
> ---
>
> WindowManager* wm = new WindowManager(...);
> Box* box= new Box(...);
> Widget*widget = new Widget(...);
> ImageStream* stream = new ImageStream(...);
>
> widget->setImage(stream, true);
>
> box->addWidget(widget);
>
> wm->addChild(box);
>
> viewer.setSceneData(wm->createParentOrthoCamera(...));
>
> ---
>
> Send me your ImageStream data directly (not over the lists) and I'll
> whip up a real example if you wish. :)
>
> > Best Regards.
> >
> > 2008/11/3 Jeremy Moles <[EMAIL PROTECTED]>
> > On Mon, 2008-11-03 at 18:56 +0200, Ümit Uzun wrote:
> > > Hi Folks,
> > >
> > > I have tried to create HUD for textured quad. I have read
> > all about
> > > archive and looked to osgHUD sample but it isn't working for
> > textured
> > > quad. And same time given code works for text. I can create
> > HUD text
> > > on the screen but can not create textured quad on the
> > screen. I know
> > > giving lots of code isn't good for you but I will paste all
> > of them if
> > > anyone want to look for find out the problem.
> >
> >
> > I really think you should try using osgWidget; even in it's
> > very young
> > stage of development, it can handle easy stuff like this
> > without a
> > hitch. And, of course, I'm very responsive to questions about
> > it so
> > you're bound to get the help you need (except on the weekends,
> > which I
> > waste playing video games).
> >
> > If I have my way, all e-mails about creating custom "HUDs"
> > will be
> > gone. :)
> >
> >
> > > If created texture quad add as a child to the root node, it
> > works
> > > without giving any problem. But if add as a child to the
> > osg::Camera
> > > node it get visible and is seen nothing. I think so, the
> > problem is in
> > > osg::Camera node which was initilazed by;
> > >
> > >
> /--Camera-/
> > > // create a camera to set up the projection and model view
> > matrices,
> > > and the subgraph to drawn in the HUD
> > >osg::ref_ptr camera = new osg::Camera;
> > >
> > >// set the projection matrix
> > >
> >
> camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
> > >
> > >// set the view matrix
> > >camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
> > >camera->setViewMatrix(osg::Matrix::identity());
> > >
> > >// only clear the depth buffer
> > >camera->setClearMask(GL_DEPTH_BUFFER_BIT);
> > >
> > >// draw subgraph after main camera view.
> > >camera->setRenderOrder(osg::Camera::POST_RENDER);
> > >
> > >// add geode to the camera node as a child
> > >camera->addChild( geode );
> > >
> /--Camera-/
> > >
> > > Best Regards.
> > > --
> > > Ümit Uzun,
> > > Environmental Tectonics Corporation Turkey
> > > ODTU Teknokent
> > > Gumus Bloklar A Blok
> > > Zemin Kat Bati Cephe Suit 1
> > > 06531 ODTU
> > > Ankara, Turkey
> > > Tel: 90 (312) 210 17 80
> > > Fax: 90 (312) 210 17 84
> > > E-Mail: umituzun84gmailcom
> > > Website: http://www.etc-turkey.com
> > >
> > >
> /---HUD---/
> > > int main()
> > > {
> > >osg::Vec3 coords[] =
> > >{
> > > osg::Vec3(-1, 0.f ,-1), //LL
> > > osg::Vec3( 1, 0.f, -1), //LR
> > > osg::Vec3( 1, 0.f, 1), //UR
> > > osg::Vec3( -1, 0.f, 1) //
Re: [osg-users] HeadUpDisplay Problem
On Mon, 2008-11-03 at 21:10 +0200, Ümit Uzun wrote:
> Hi Jeremy,
>
> Thanks for reply. My target with creating HUD display is playing
> osgMovie imagestreamed texture in it. If I can achive this operation
> by osgWidget I glad to use this API. And if it is possible, which
> osgWidget sample should I glimps? Because I have never tried osgWidget
> before except looking built-in samples in osg.
Here's basically all you need:
---
WindowManager* wm = new WindowManager(...);
Box* box= new Box(...);
Widget*widget = new Widget(...);
ImageStream* stream = new ImageStream(...);
widget->setImage(stream, true);
box->addWidget(widget);
wm->addChild(box);
viewer.setSceneData(wm->createParentOrthoCamera(...));
---
Send me your ImageStream data directly (not over the lists) and I'll
whip up a real example if you wish. :)
> Best Regards.
>
> 2008/11/3 Jeremy Moles <[EMAIL PROTECTED]>
> On Mon, 2008-11-03 at 18:56 +0200, Ümit Uzun wrote:
> > Hi Folks,
> >
> > I have tried to create HUD for textured quad. I have read
> all about
> > archive and looked to osgHUD sample but it isn't working for
> textured
> > quad. And same time given code works for text. I can create
> HUD text
> > on the screen but can not create textured quad on the
> screen. I know
> > giving lots of code isn't good for you but I will paste all
> of them if
> > anyone want to look for find out the problem.
>
>
> I really think you should try using osgWidget; even in it's
> very young
> stage of development, it can handle easy stuff like this
> without a
> hitch. And, of course, I'm very responsive to questions about
> it so
> you're bound to get the help you need (except on the weekends,
> which I
> waste playing video games).
>
> If I have my way, all e-mails about creating custom "HUDs"
> will be
> gone. :)
>
>
> > If created texture quad add as a child to the root node, it
> works
> > without giving any problem. But if add as a child to the
> osg::Camera
> > node it get visible and is seen nothing. I think so, the
> problem is in
> > osg::Camera node which was initilazed by;
> >
> >
> /--Camera-/
> > // create a camera to set up the projection and model view
> matrices,
> > and the subgraph to drawn in the HUD
> >osg::ref_ptr camera = new osg::Camera;
> >
> >// set the projection matrix
> >
> camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
> >
> >// set the view matrix
> >camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
> >camera->setViewMatrix(osg::Matrix::identity());
> >
> >// only clear the depth buffer
> >camera->setClearMask(GL_DEPTH_BUFFER_BIT);
> >
> >// draw subgraph after main camera view.
> >camera->setRenderOrder(osg::Camera::POST_RENDER);
> >
> >// add geode to the camera node as a child
> >camera->addChild( geode );
> >
> /--Camera-/
> >
> > Best Regards.
> > --
> > Ümit Uzun,
> > Environmental Tectonics Corporation Turkey
> > ODTU Teknokent
> > Gumus Bloklar A Blok
> > Zemin Kat Bati Cephe Suit 1
> > 06531 ODTU
> > Ankara, Turkey
> > Tel: 90 (312) 210 17 80
> > Fax: 90 (312) 210 17 84
> > E-Mail: umituzun84gmailcom
> > Website: http://www.etc-turkey.com
> >
> >
> /---HUD---/
> > int main()
> > {
> >osg::Vec3 coords[] =
> >{
> > osg::Vec3(-1, 0.f ,-1), //LL
> > osg::Vec3( 1, 0.f, -1), //LR
> > osg::Vec3( 1, 0.f, 1), //UR
> > osg::Vec3( -1, 0.f, 1) //UL
> >};
> >
> >osg::Vec2 tCoords[] =
> >{
> > osg::Vec2(0,0),
> > osg::Vec2(1,0),
> > osg::Vec2(1,1),
> > osg::Vec2(0,1)
> >};
> >
> >int numCoords = sizeof(coords) / sizeof(osg::Vec3);
> >int numTexCoords = sizeof(tCoords) / sizeof(osg::Vec2);
> >
> > osg::ref_ptr root = new osg::Group();
> > osgViewer::Viewer viewer;
> > osg::Geode *geode = new osg::Geode();
> > osg::Geometry *quad = new osg::Geometry();
> >
> > quad->setVertexArray(new osg::Vec3Array(numCoo
Re: [osg-users] HeadUpDisplay Problem
Hi Jeremy,
Thanks for reply. My target with creating HUD display is playing osgMovie
imagestreamed texture in it. If I can achive this operation by osgWidget I
glad to use this API. And if it is possible, which osgWidget sample should I
glimps? Because I have never tried osgWidget before except looking built-in
samples in osg.
Best Regards.
2008/11/3 Jeremy Moles <[EMAIL PROTECTED]>
> On Mon, 2008-11-03 at 18:56 +0200, Ümit Uzun wrote:
> > Hi Folks,
> >
> > I have tried to create HUD for textured quad. I have read all about
> > archive and looked to osgHUD sample but it isn't working for textured
> > quad. And same time given code works for text. I can create HUD text
> > on the screen but can not create textured quad on the screen. I know
> > giving lots of code isn't good for you but I will paste all of them if
> > anyone want to look for find out the problem.
>
> I really think you should try using osgWidget; even in it's very young
> stage of development, it can handle easy stuff like this without a
> hitch. And, of course, I'm very responsive to questions about it so
> you're bound to get the help you need (except on the weekends, which I
> waste playing video games).
>
> If I have my way, all e-mails about creating custom "HUDs" will be
> gone. :)
>
> > If created texture quad add as a child to the root node, it works
> > without giving any problem. But if add as a child to the osg::Camera
> > node it get visible and is seen nothing. I think so, the problem is in
> > osg::Camera node which was initilazed by;
> >
> >
> /--Camera-/
> > // create a camera to set up the projection and model view matrices,
> > and the subgraph to drawn in the HUD
> >osg::ref_ptr camera = new osg::Camera;
> >
> >// set the projection matrix
> >camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
> >
> >// set the view matrix
> >camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
> >camera->setViewMatrix(osg::Matrix::identity());
> >
> >// only clear the depth buffer
> >camera->setClearMask(GL_DEPTH_BUFFER_BIT);
> >
> >// draw subgraph after main camera view.
> >camera->setRenderOrder(osg::Camera::POST_RENDER);
> >
> >// add geode to the camera node as a child
> >camera->addChild( geode );
> >
> /--Camera-/
> >
> > Best Regards.
> > --
> > Ümit Uzun,
> > Environmental Tectonics Corporation Turkey
> > ODTU Teknokent
> > Gumus Bloklar A Blok
> > Zemin Kat Bati Cephe Suit 1
> > 06531 ODTU
> > Ankara, Turkey
> > Tel: 90 (312) 210 17 80
> > Fax: 90 (312) 210 17 84
> > E-Mail: umituzun84gmailcom
> > Website: http://www.etc-turkey.com
> >
> >
> /---HUD---/
> > int main()
> > {
> >osg::Vec3 coords[] =
> >{
> > osg::Vec3(-1, 0.f ,-1), //LL
> > osg::Vec3( 1, 0.f, -1), //LR
> > osg::Vec3( 1, 0.f, 1), //UR
> > osg::Vec3( -1, 0.f, 1) //UL
> >};
> >
> >osg::Vec2 tCoords[] =
> >{
> > osg::Vec2(0,0),
> > osg::Vec2(1,0),
> > osg::Vec2(1,1),
> > osg::Vec2(0,1)
> >};
> >
> >int numCoords = sizeof(coords) / sizeof(osg::Vec3);
> >int numTexCoords = sizeof(tCoords) / sizeof(osg::Vec2);
> >
> > osg::ref_ptr root = new osg::Group();
> > osgViewer::Viewer viewer;
> > osg::Geode *geode = new osg::Geode();
> > osg::Geometry *quad = new osg::Geometry();
> >
> > quad->setVertexArray(new osg::Vec3Array(numCoords, coords));
> > quad->setTexCoordArray(0, new osg::Vec2Array(numTexCoords,
> > tCoords));
> > quad->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,
> > 0, numCoords));
> >
> > geode->addDrawable(quad);
> >
> > osg::Image* image = osgDB::readImageFile( "RWR_256_256.bmp" );
> > if (image == NULL)
> > {
> > osg::notify(osg::WARN) << "Can't find texture file:" <<
> > std::endl;
> > }
> >
> > osg::Texture2D* texture = new osg::Texture2D();
> > texture->setImage(image);
> > texture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::REPEAT);
> > texture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::REPEAT);
> >
> > osg::StateSet *stateSet = quad->getOrCreateStateSet();
> > stateSet->setTextureAttributeAndModes(0, texture,
> > osg::StateAttribute::ON);
> > stateSet->setMode(GL_BLEND,osg::StateAttribute::ON);
> > stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
> > stateSet->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
> >
> >// create a camera to set up the projection and model view
> > matrices, and the subgraph to drawn in the HUD
> >osg::ref_ptr camera = new osg::Camera;
> >
> >// set the projection matrix
> >camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
> >
> >// set the view matrix
> >camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
> >camera->setViewMatrix(osg::Matri
Re: [osg-users] HeadUpDisplay Problem
On Mon, 2008-11-03 at 18:56 +0200, Ümit Uzun wrote:
> Hi Folks,
>
> I have tried to create HUD for textured quad. I have read all about
> archive and looked to osgHUD sample but it isn't working for textured
> quad. And same time given code works for text. I can create HUD text
> on the screen but can not create textured quad on the screen. I know
> giving lots of code isn't good for you but I will paste all of them if
> anyone want to look for find out the problem.
I really think you should try using osgWidget; even in it's very young
stage of development, it can handle easy stuff like this without a
hitch. And, of course, I'm very responsive to questions about it so
you're bound to get the help you need (except on the weekends, which I
waste playing video games).
If I have my way, all e-mails about creating custom "HUDs" will be
gone. :)
> If created texture quad add as a child to the root node, it works
> without giving any problem. But if add as a child to the osg::Camera
> node it get visible and is seen nothing. I think so, the problem is in
> osg::Camera node which was initilazed by;
>
> /--Camera-/
> // create a camera to set up the projection and model view matrices,
> and the subgraph to drawn in the HUD
>osg::ref_ptr camera = new osg::Camera;
>
>// set the projection matrix
>camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
>
>// set the view matrix
>camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
>camera->setViewMatrix(osg::Matrix::identity());
>
>// only clear the depth buffer
>camera->setClearMask(GL_DEPTH_BUFFER_BIT);
>
>// draw subgraph after main camera view.
>camera->setRenderOrder(osg::Camera::POST_RENDER);
>
>// add geode to the camera node as a child
>camera->addChild( geode );
> /--Camera-/
>
> Best Regards.
> --
> Ümit Uzun,
> Environmental Tectonics Corporation Turkey
> ODTU Teknokent
> Gumus Bloklar A Blok
> Zemin Kat Bati Cephe Suit 1
> 06531 ODTU
> Ankara, Turkey
> Tel: 90 (312) 210 17 80
> Fax: 90 (312) 210 17 84
> E-Mail: umituzun84gmailcom
> Website: http://www.etc-turkey.com
>
> /---HUD---/
> int main()
> {
>osg::Vec3 coords[] =
>{
> osg::Vec3(-1, 0.f ,-1), //LL
> osg::Vec3( 1, 0.f, -1), //LR
> osg::Vec3( 1, 0.f, 1), //UR
> osg::Vec3( -1, 0.f, 1) //UL
>};
>
>osg::Vec2 tCoords[] =
>{
> osg::Vec2(0,0),
> osg::Vec2(1,0),
> osg::Vec2(1,1),
> osg::Vec2(0,1)
>};
>
>int numCoords = sizeof(coords) / sizeof(osg::Vec3);
>int numTexCoords = sizeof(tCoords) / sizeof(osg::Vec2);
>
> osg::ref_ptr root = new osg::Group();
> osgViewer::Viewer viewer;
> osg::Geode *geode = new osg::Geode();
> osg::Geometry *quad = new osg::Geometry();
>
> quad->setVertexArray(new osg::Vec3Array(numCoords, coords));
> quad->setTexCoordArray(0, new osg::Vec2Array(numTexCoords,
> tCoords));
> quad->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,
> 0, numCoords));
>
> geode->addDrawable(quad);
>
> osg::Image* image = osgDB::readImageFile( "RWR_256_256.bmp" );
> if (image == NULL)
> {
> osg::notify(osg::WARN) << "Can't find texture file:" <<
> std::endl;
> }
>
> osg::Texture2D* texture = new osg::Texture2D();
> texture->setImage(image);
> texture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::REPEAT);
> texture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::REPEAT);
>
> osg::StateSet *stateSet = quad->getOrCreateStateSet();
> stateSet->setTextureAttributeAndModes(0, texture,
> osg::StateAttribute::ON);
> stateSet->setMode(GL_BLEND,osg::StateAttribute::ON);
> stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
> stateSet->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
>
>// create a camera to set up the projection and model view
> matrices, and the subgraph to drawn in the HUD
>osg::ref_ptr camera = new osg::Camera;
>
>// set the projection matrix
>camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
>
>// set the view matrix
>camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
>camera->setViewMatrix(osg::Matrix::identity());
>
>// only clear the depth buffer
>camera->setClearMask(GL_DEPTH_BUFFER_BIT);
>
>// draw subgraph after main camera view.
>camera->setRenderOrder(osg::Camera::POST_RENDER);
>
>// add geode to the camera node as a child
>camera->addChild(geode);
>
>// add camera to the root node as a child
>root->addChild(camera.get());
>
>viewer.setSceneData(root.get());
>viewer.setCameraManipulator(new osgGA::TrackballManipulator());
>
>viewer.run();
>
>return 0;
> }
> /---HUD--
[osg-users] HeadUpDisplay Problem
Hi Folks,
I have tried to create HUD for textured quad. I have read all about archive
and looked to osgHUD sample but it isn't working for textured quad. And same
time given code works for text. I can create HUD text on the screen but can
not create textured quad on the screen. I know giving lots of code isn't
good for you but I will paste all of them if anyone want to look for find
out the problem.
If created texture quad add as a child to the root node, it works without
giving any problem. But if add as a child to the osg::Camera node it get
visible and is seen nothing. I think so, the problem is in osg::Camera node
which was initilazed by;
/--Camera-/
// create a camera to set up the projection and model view matrices, and
the subgraph to drawn in the HUD
osg::ref_ptr camera = new osg::Camera;
// set the projection matrix
camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
// set the view matrix
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setViewMatrix(osg::Matrix::identity());
// only clear the depth buffer
camera->setClearMask(GL_DEPTH_BUFFER_BIT);
// draw subgraph after main camera view.
camera->setRenderOrder(osg::Camera::POST_RENDER);
// add geode to the camera node as a child
camera->addChild( geode );
/--Camera-/
Best Regards.
--
Ümit Uzun,
Environmental Tectonics Corporation Turkey
ODTU Teknokent
Gumus Bloklar A Blok
Zemin Kat Bati Cephe Suit 1
06531 ODTU
Ankara, Turkey
Tel: 90 (312) 210 17 80
Fax: 90 (312) 210 17 84
E-Mail: umituzun84gmailcom
Website: http://www.etc-turkey.com
/---HUD---/
int main()
{
osg::Vec3 coords[] =
{
osg::Vec3(-1, 0.f ,-1), //LL
osg::Vec3( 1, 0.f, -1), //LR
osg::Vec3( 1, 0.f, 1), //UR
osg::Vec3( -1, 0.f, 1) //UL
};
osg::Vec2 tCoords[] =
{
osg::Vec2(0,0),
osg::Vec2(1,0),
osg::Vec2(1,1),
osg::Vec2(0,1)
};
int numCoords = sizeof(coords) / sizeof(osg::Vec3);
int numTexCoords = sizeof(tCoords) / sizeof(osg::Vec2);
osg::ref_ptr root = new osg::Group();
osgViewer::Viewer viewer;
osg::Geode *geode = new osg::Geode();
osg::Geometry *quad = new osg::Geometry();
quad->setVertexArray(new osg::Vec3Array(numCoords, coords));
quad->setTexCoordArray(0, new osg::Vec2Array(numTexCoords, tCoords));
quad->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS, 0,
numCoords));
geode->addDrawable(quad);
osg::Image* image = osgDB::readImageFile( "RWR_256_256.bmp" );
if (image == NULL)
{
osg::notify(osg::WARN) << "Can't find texture file:" << std::endl;
}
osg::Texture2D* texture = new osg::Texture2D();
texture->setImage(image);
texture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::REPEAT);
texture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::REPEAT);
osg::StateSet *stateSet = quad->getOrCreateStateSet();
stateSet->setTextureAttributeAndModes(0, texture,
osg::StateAttribute::ON);
stateSet->setMode(GL_BLEND,osg::StateAttribute::ON);
stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
stateSet->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
// create a camera to set up the projection and model view matrices, and
the subgraph to drawn in the HUD
osg::ref_ptr camera = new osg::Camera;
// set the projection matrix
camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
// set the view matrix
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setViewMatrix(osg::Matrix::identity());
// only clear the depth buffer
camera->setClearMask(GL_DEPTH_BUFFER_BIT);
// draw subgraph after main camera view.
camera->setRenderOrder(osg::Camera::POST_RENDER);
// add geode to the camera node as a child
camera->addChild(geode);
// add camera to the root node as a child
root->addChild(camera.get());
viewer.setSceneData(root.get());
viewer.setCameraManipulator(new osgGA::TrackballManipulator());
viewer.run();
return 0;
}
/---HUD---/
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