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_ptrosg::Camera 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: umituzun84atgmaildotcom
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_ptrosg::Group 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_ptrosg::Camera 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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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_ptrosg::Camera 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: umituzun84atgmaildotcom
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_ptrosg::Group 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_ptrosg::Camera 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
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_ptrosg::Camera 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: umituzun84atgmaildotcom
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_ptrosg::Group 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
