FGFS-4.1/OpenSceneGraph
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Ported follow examples to osgViewer:

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osgshape
    osgsimplifier
    osgsimulation
    osgslice
    osgspacewarp
    osgspheresegment
    osgspotlight
    osgstereoimage
This commit is contained in:
Robert Osfield
2007-01-11 11:47:01 +00:00
parent 5ee30edbea
commit d6291a0ffc
32 changed files with 185 additions and 521 deletions
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46
examples/osgslice/osgslice.cpp
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@@ -4,13 +4,14 @@
// graphics window, and OSG for rendering.
#include <osg/Timer>
#include <osg/GraphicsContext>
#include <osg/ApplicationUsage>
#include <osgUtil/SceneView>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgProducer/Viewer>
#include <sstream>
#include <iostream>
#define MIN_NEARFAROFFSET 0.1
@@ -108,26 +109,29 @@ int main( int argc, char **argv )
return 1;
}
// create the window to draw to.
osg::ref_ptr<Producer::RenderSurface> renderSurface = new Producer::RenderSurface;
renderSurface->setWindowName("osgsimple");
renderSurface->setWindowRectangle(100,100,numberSlices,numberSlices);
renderSurface->useBorder(true);
// make sure we have a alpha channel in the colour buffer, to enable
// alpha on read back.
Producer::VisualChooser* rs_vc = renderSurface->getVisualChooser();
if (!rs_vc)
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
traits->x = 100;
traits->y = 100;
traits->width = numberSlices;
traits->height = numberSlices;
traits->alpha = 8;
traits->windowDecoration = true;
traits->doubleBuffer = true;
traits->sharedContext = 0;
traits->pbuffer = false;
osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get());
if (!gc || !gc->valid())
{
rs_vc = new Producer::VisualChooser;
rs_vc->setSimpleConfiguration();
renderSurface->setVisualChooser(rs_vc);
osg::notify(osg::NOTICE)<<"Error: unable to create graphics window"<<std::endl;
return 1;
}
rs_vc->setAlphaSize(8);
// create the graphics context.
renderSurface->realize();
gc->realize();
gc->makeCurrent();
// create the view of the scene.
osg::ref_ptr<osgUtil::SceneView> sceneView = new osgUtil::SceneView;
sceneView->setDefaults();
@@ -157,7 +161,7 @@ int main( int argc, char **argv )
osg::Image* tmpImage = new osg::Image;
// main loop (note, window toolkits which take control over the main loop will require a window redraw callback containing the code below.)
for( unsigned int i = 0 ; i < sp->_sliceNumber && renderSurface->isRealized() ; ++i )
for( unsigned int i = 0 ; i < sp->_sliceNumber && gc->isRealized() ; ++i )
{
// set up the frame stamp for current frame to record the current time and frame number so that animtion code can advance correctly
osg::ref_ptr<osg::FrameStamp> frameStamp = new osg::FrameStamp;
@@ -168,7 +172,7 @@ int main( int argc, char **argv )
sceneView->setFrameStamp(frameStamp.get());
// update the viewport dimensions, incase the window has been resized.
sceneView->setViewport(0,0,renderSurface->getWindowWidth(),renderSurface->getWindowHeight());
sceneView->setViewport(0,0,traits->width,traits->height);
// set the view
@@ -189,7 +193,7 @@ int main( int argc, char **argv )
sceneView->draw();
// Swap Buffers
renderSurface->swapBuffers();
gc->swapBuffers();
std::cout << "before readPixels: _r = " << sp->_image->r() << std::endl;