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<osg::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: umituzun84<at>gmail<dot>com > 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<osg::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_ptr<osg::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---------------------------------------/ > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
