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From Tom Jolly, Fixes to osgSim::BlinkSequence to enable proper saving and

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This commit is contained in:
Robert Osfield
2004-02-05 10:50:29 +00:00
parent e4dac2e6f6
commit 22b2e7343e
5 changed files with 76 additions and 26 deletions
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57
examples/osglightpoint/osglightpoint.cpp
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@@ -16,6 +16,7 @@
#include <osgSim/LightPointNode>
#define INTERPOLATE(member) lp.member = start.member*rstart + end.member*rend;
void addToLightPointNode(osgSim::LightPointNode& lpn,osgSim::LightPoint& start,osgSim::LightPoint& end,unsigned int noSteps)
@@ -52,10 +53,10 @@ osg::Node* createLightPointsDatabase()
osgSim::LightPoint start;
osgSim::LightPoint end;
start._position.set(0.0f,0.0f,0.0f);
start._position.set(-500.0f,-500.0f,0.0f);
start._color.set(1.0f,0.0f,0.0f,1.0f);
end._position.set(1000.0f,0.0f,0.0f);
end._position.set(500.0f,-500.0f,0.0f);
end._color.set(1.0f,1.0f,1.0f,1.0f);
osg::Transform* transform = new osg::Transform;
@@ -107,6 +108,56 @@ osg::Node* createLightPointsDatabase()
return group;
}
static osg::Node* CreateBlinkSequenceLightNode()
{
osgSim::LightPointNode* lightPointNode = new osgSim::LightPointNode;;
osgSim::LightPointNode::LightPointList lpList;
osg::ref_ptr<osgSim::SequenceGroup> seq_0;
seq_0 = new osgSim::SequenceGroup;
seq_0->_baseTime = 0.0;
osg::ref_ptr<osgSim::SequenceGroup> seq_1;
seq_1 = new osgSim::SequenceGroup;
seq_1->_baseTime = 0.5;
const int max_points = 32;
for( int i = 0; i < max_points; ++i )
{
osgSim::LightPoint lp;
double x = cos( (2.0*osg::PI*i)/max_points );
double z = sin( (2.0*osg::PI*i)/max_points );
lp._position.set( x, 0.0f, z + 100.0f );
lp._blinkSequence = new osgSim::BlinkSequence;
for( int j = 10; j > 0; --j )
{
float intensity = j/10.0f;
lp._blinkSequence->addPulse( 1.0/max_points,
osg::Vec4( intensity, intensity, intensity, intensity ) );
}
if( max_points > 10 )
{
lp._blinkSequence->addPulse( 1.0 - 10.0/max_points,
osg::Vec4( 0.0f, 0.0f, 0.0f, 0.0f ) );
}
if( i & 1 )
{
lp._blinkSequence->setSequenceGroup( seq_1.get() );
}
else
{
lp._blinkSequence->setSequenceGroup( seq_0.get() );
}
lp._blinkSequence->setPhaseShift( i/(static_cast<double>(max_points)) );
lpList.push_back( lp );
}
lightPointNode->setLightPointList( lpList );
return lightPointNode;
}
int main( int argc, char **argv )
{
@@ -150,7 +201,7 @@ int main( int argc, char **argv )
// load the nodes from the commandline arguments.
rootnode->addChild(osgDB::readNodeFiles(arguments));
rootnode->addChild(createLightPointsDatabase());
rootnode->addChild(CreateBlinkSequenceLightNode());
// run optimization over the scene graph
osgUtil::Optimizer optimzer;