FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added code to load the bluemarble.ive database instead of the texture mapped

Browse Source 
sphere for the earth model in the logo.
This commit is contained in:
Robert Osfield
2003-11-05 10:24:51 +00:00
parent 4e8992d8c1
commit e043f6c89d
1 changed files with 47 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
examples/osglogo/osglogo.cpp
View File

@@ -187,33 +187,47 @@ osg:: Node* createTextLeft(const osg::BoundingBox& bb)
return geode;
}
osg:: Node* createGlobe(const osg::BoundingBox& bb,float ratio)
osg:: Node* createGlobe(const osg::BoundingBox& bb,float ratio, const std::string& filename)
{
osg::Geode* geode = new osg::Geode();
osg::StateSet* stateset = geode->getOrCreateStateSet();
osg::Image* image = osgDB::readImageFile("Images/land_shallow_topo_2048.jpg");
if (image)
{
osg::Texture2D* texture = new osg::Texture2D;
texture->setImage(image);
texture->setMaxAnisotropy(8);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
}
osg::Material* material = new osg::Material;
stateset->setAttribute(material);
// the globe
geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(bb.center(),bb.radius()*ratio)));
osg::MatrixTransform* xform = new osg::MatrixTransform;
xform->setUpdateCallback(new osgUtil::TransformCallback(bb.center(),osg::Vec3(0.0f,0.0f,1.0f),osg::inDegrees(30.0f)));
xform->addChild(geode);
xform->setUpdateCallback(new osgUtil::TransformCallback(bb.center(),osg::Vec3(0.0f,0.0f,1.0f),osg::inDegrees(10.0f)));
osg::Node* bluemarble = osgDB::readNodeFile(filename.c_str());
if (bluemarble)
{
const osg::BoundingSphere& bs = bluemarble->getBound();
float s = 1.2*bb.radius()/bs.radius();
osg::MatrixTransform* positioner = new osg::MatrixTransform;
positioner->setMatrix(osg::Matrix::translate(-bs.center())*osg::Matrix::scale(s,s,s)*osg::Matrix::translate(bb.center()));
positioner->addChild(bluemarble);
xform->addChild(positioner);
}
else
{
osg::Geode* geode = new osg::Geode();
osg::StateSet* stateset = geode->getOrCreateStateSet();
osg::Image* image = osgDB::readImageFile("Images/land_shallow_topo_2048.jpg");
if (image)
{
osg::Texture2D* texture = new osg::Texture2D;
texture->setImage(image);
texture->setMaxAnisotropy(8);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
}
osg::Material* material = new osg::Material;
stateset->setAttribute(material);
// the globe
geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(bb.center(),bb.radius()*ratio)));
xform->addChild(geode);
}
return xform;
}
@@ -331,7 +345,7 @@ osg:: Node* createBackdrop(const osg::Vec3& corner,const osg::Vec3& top,const os
return geode;
}
osg::Node* createLogo()
osg::Node* createLogo(const std::string& filename)
{
osg::BoundingBox bb(osg::Vec3(0.0f,0.0f,0.0f),osg::Vec3(100.0f,100.0f,100.0f));
float chordRatio = 0.5f;
@@ -366,7 +380,7 @@ osg::Node* createLogo()
// add the transform to the group.
logo_group->addChild(xform);
logo_group->addChild(createGlobe(bb,sphereRatio));
logo_group->addChild(createGlobe(bb,sphereRatio,filename));
// add the text to the group.
//group->addChild(createTextBelow(bb));
@@ -408,7 +422,8 @@ int main( int argc, char **argv )
// set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates both text, animation and billboard via custom transform to create the OpenSceneGraph logo..");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+"[options] [filename] ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
arguments.getApplicationUsage()->addCommandLineOption("ps","Render the Professional Services logo");
@@ -440,7 +455,10 @@ int main( int argc, char **argv )
return 1;
}
osg::Node* node = createLogo();
osg::Node* node = 0;
if (arguments.argc()>1) createLogo(arguments[1]);
else node = createLogo("bluemarble.ive");
// add model to viewer.
viewer.setSceneData( node );