FGFS-4.1/OpenSceneGraph
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Added --object, --ortho and --persp OverlayNode options

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This commit is contained in:
Robert Osfield 2007-05-28 15:44:37 +00:00
parent adf95c8261
commit 2528eabd0e
1 changed files with 26 additions and 7 deletions
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33
examples/osgspheresegment/osgspheresegment.cpp
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@ -329,7 +329,7 @@ osg::Vec3 computeTerrainIntersection(osg::Node* subgraph,float x,float y)
// MAIN SCENE GRAPH BUILDING FUNCTION
//////////////////////////////////////////////////////////////////////////////
void build_world(osg::Group *root, unsigned int testCase)
void build_world(osg::Group *root, unsigned int testCase, bool useOverlay, osgSim::OverlayNode::OverlayTechnique technique)
{
// create terrain
@ -567,8 +567,26 @@ void build_world(osg::Group *root, unsigned int testCase)
}
root->addChild(terrainGeode.get());
if (useOverlay)
{
osgSim::OverlayNode* overlayNode = new osgSim::OverlayNode(technique);
overlayNode->getOrCreateStateSet()->setTextureAttribute(1, new osg::TexEnv(osg::TexEnv::DECAL));
const osg::BoundingSphere& bs = terrainGeode->getBound();
osg::Group* overlaySubgraph = createOverlay(bs.center(), bs.radius()*0.5f);
overlaySubgraph->addChild(ss.get());
overlayNode->setOverlaySubgraph(overlaySubgraph);
overlayNode->setOverlayTextureSizeHint(1024);
overlayNode->setOverlayBaseHeight(0.0);
overlayNode->addChild(terrainGeode.get());
root->addChild(overlayNode);
}
else
{
root->addChild(terrainGeode.get());
}
// create particle effects
{
osg::Vec3 position = computeTerrainIntersection(terrainGeode.get(),100.0f,100.0f);
@ -626,12 +644,13 @@ int main(int argc, char **argv)
// if user request help write it out to cout.
unsigned int testCase = 0;
if (arguments.read("-t", testCase)) {}
while (arguments.read("-t", testCase)) {}
bool useOverlay = false;
osgSim::OverlayNode::OverlayTechnique technique = osgSim::OverlayNode::OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY;
while (arguments.read("--object")) technique = osgSim::OverlayNode::OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY;
while (arguments.read("--ortho") || arguments.read("--orthographic")) technique = osgSim::OverlayNode::VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY;
while (arguments.read("--persp") || arguments.read("--perspective")) technique = osgSim::OverlayNode::VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY;
while (arguments.read("--object")) { useOverlay = true; technique = osgSim::OverlayNode::OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY; }
while (arguments.read("--ortho") || arguments.read("--orthographic")) { useOverlay = true; technique = osgSim::OverlayNode::VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY; }
while (arguments.read("--persp") || arguments.read("--perspective")) { useOverlay = true; technique = osgSim::OverlayNode::VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY; }
// if user request help write it out to cout.
@ -652,7 +671,7 @@ int main(int argc, char **argv)
}
osg::Group *root = new osg::Group;
build_world(root, testCase);
build_world(root, testCase, useOverlay, technique);
// add a viewport to the viewer and attach the scene graph.
viewer.setSceneData(root);