FGFS-4.1/OpenSceneGraph
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Added osgSim::OverlayNode to osganimate and osgspheresegment examples, and

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added support for setting texture size hint and coping with scene graphs
with CoordinateSystemNode in them.
This commit is contained in:
Robert Osfield
2005-09-06 15:48:18 +00:00
parent db24ea247c
commit 5283c11f8a
5 changed files with 135 additions and 48 deletions
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30
examples/osgspheresegment/osgspheresegment.cpp
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@@ -12,6 +12,7 @@
#include <osgText/Text>
#include <osgSim/SphereSegment>
#include <osgSim/OverlayNode>
#include <osgParticle/ExplosionEffect>
#include <osgParticle/SmokeEffect>
@@ -173,9 +174,11 @@ osg::Vec3 computeTerrainIntersection(osg::Node* subgraph,float x,float y)
void build_world(osg::Group *root)
{
osg::Geode* terrainGeode = new osg::Geode;
// create terrain
osg::ref_ptr<osg::Geode> terrainGeode = 0;
{
terrainGeode = new osg::Geode;
osg::StateSet* stateset = new osg::StateSet();
osg::Image* image = osgDB::readImageFile("Images/lz.rgb");
if (image)
@@ -205,13 +208,15 @@ void build_world(osg::Group *root)
}
terrainGeode->addDrawable(new osg::ShapeDrawable(grid));
root->addChild(terrainGeode);
}
// create sphere segment
osg::ref_ptr<osgSim::SphereSegment> ss = 0;
{
osgSim::SphereSegment* ss = new osgSim::SphereSegment(
computeTerrainIntersection(terrainGeode,550.0f,780.0f), // center
ss = new osgSim::SphereSegment(
computeTerrainIntersection(terrainGeode.get(),550.0f,780.0f), // center
500.0f, // radius
osg::DegreesToRadians(135.0f),
osg::DegreesToRadians(245.0f),
@@ -221,13 +226,24 @@ void build_world(osg::Group *root)
ss->setAllColors(osg::Vec4(1.0f,1.0f,1.0f,0.5f));
ss->setSideColor(osg::Vec4(0.0f,1.0f,1.0f,0.1f));
root->addChild(ss);
root->addChild(ss.get());
}
#if 1
osgSim::OverlayNode* overlayNode = new osgSim::OverlayNode;
overlayNode->setOverlaySubgraph(ss.get());
overlayNode->setOverlayTextureSizeHint(2048);
overlayNode->addChild(terrainGeode.get());
root->addChild(overlayNode);
#else
root->addChild(terrainGeode);
#endif
// create particle effects
{
osg::Vec3 position = computeTerrainIntersection(terrainGeode,100.0f,100.0f);
osg::Vec3 position = computeTerrainIntersection(terrainGeode.get(),100.0f,100.0f);
osgParticle::ExplosionEffect* explosion = new osgParticle::ExplosionEffect(position, 10.0f);
osgParticle::SmokeEffect* smoke = new osgParticle::SmokeEffect(position, 10.0f);
@@ -240,7 +256,7 @@ void build_world(osg::Group *root)
// create particle effects
{
osg::Vec3 position = computeTerrainIntersection(terrainGeode,200.0f,100.0f);
osg::Vec3 position = computeTerrainIntersection(terrainGeode.get(),200.0f,100.0f);
osgParticle::ExplosionEffect* explosion = new osgParticle::ExplosionEffect(position, 1.0f);
osgParticle::SmokeEffect* smoke = new osgParticle::SmokeEffect(position, 1.0f);