def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
if argc<2 :
print argv[0], ": requires filename argument."
return 1
numRepeats = 2
if arguments.read("--repeat",numRepeats) or arguments.read("-r",numRepeats) or arguments.read("--repeat") or arguments.read("-r") :
sharedModel = arguments.read("--shared")
enableVBO = arguments.read("--vbo")
model = osg.Node()
if sharedModel :
model = osgDB.readNodeFiles(arguments)
if not model : return 0
if enableVBO :
enableVBOs = EnableVBOVisitor()
model.accept(enableVBOs)
threadingModel = osgViewer.Viewer.AutomaticSelection
while arguments.read("-s") : threadingModel = osgViewer.Viewer.SingleThreaded
while arguments.read("-g") : threadingModel = osgViewer.Viewer.CullDrawThreadPerContext
while arguments.read("-d") : threadingModel = osgViewer.Viewer.DrawThreadPerContext
while arguments.read("-c") : threadingModel = osgViewer.Viewer.CullThreadPerCameraDrawThreadPerContext
for(unsigned int i=0 i<numRepeats ++i)
osg.notify(osg.NOTICE), "+++++++++++++ New viewer ++++++++++++"
viewer = osgViewer.Viewer()
viewer.setThreadingModel(threadingModel)
if sharedModel : viewer.setSceneData(model)
else:
node = osgDB.readNodeFiles(arguments)
if not node : return 0
if enableVBO :
enableVBOs = EnableVBOVisitor()
node.accept(enableVBOs)
viewer.setSceneData(node)
viewer.run()
osg.notify(osg.NOTICE), "------------ Viewer ended ----------"
def main(argv):
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer(arguments)
node = osgDB.readNodeFiles(arguments)
if not node : return 0
gce = osg.GraphicsCostEstimator()
viewer.setSceneData(node)
viewer.realize()
compileCost = gce.estimateCompileCost(node)
drawCost = gce.estimateDrawCost(node)
OSG_NOTICE, "estimateCompileCost(", node.getName(), "), CPU=", compileCost.first, " GPU=", compileCost.second
OSG_NOTICE, "estimateDrawCost(", node.getName(), "), CPU=", drawCost.first, " GPU=", drawCost.second
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# set the osgDB.Registy read file callback to catch all requests for reading files.
osgDB.Registry.instance().setReadFileCallback(MyReadFileCallback())
# initialize the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
rootnode = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if rootnode is None:
rootnode = osgDB.readNodeFile("cow.osgt")
if rootnode is None:
osg.notify(osg.NOTICE), "Please specify a file on the command line"
return 1
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
# insert all the callbacks
icv = InsertCallbacksVisitor()
# rootnode.accept(icv)
cuc = CameraUpdateCallback(
) # TODO - crashes if I do create this persistent reference
viewer.getCamera().setUpdateCallback(cuc)
ceu = CameraEventCallback(
) # TODO - crashes if I do create this persistent reference
viewer.getCamera().setEventCallback(ceu)
# set the scene to render
viewer.setSceneData(rootnode)
return viewer.run()
def createSceneGraph(arguments):
node = osgDB.readNodeFiles(arguments)
if not node : return 0
group = osg.Group()
spacing = node.getBound().radius() * 2.0
position = osg.Vec3d(0.0,0.0,0.0)
sa1 = NULL
stateset = group.getOrCreateStateSet()
sa = osg.ShaderAttribute()
sa.setType(osg.StateAttribute.Type(10000))
sa1 = sa
stateset.setAttribute(sa)
vertex_shader = osg.Shader(osg.Shader.VERTEX)
vertex_shader.addCodeInjection(-1,"varying vec4 color\n")
vertex_shader.addCodeInjection(-1,"varying vec4 texcoord\n")
vertex_shader.addCodeInjection(0,"color = gl_Color\n")
vertex_shader.addCodeInjection(0,"texcoord = gl_MultiTexCoord0\n")
vertex_shader.addCodeInjection(0,"gl_Position = ftransform()\n")
sa.addShader(vertex_shader)
fragment_shader = osg.Shader(osg.Shader.FRAGMENT)
fragment_shader.addCodeInjection(-1,"varying vec4 color\n")
fragment_shader.addCodeInjection(-1,"varying vec4 texcoord\n")
fragment_shader.addCodeInjection(-1,"uniform sampler2D baseTexture \n")
fragment_shader.addCodeInjection(0,"gl_FragColor = color * texture2DProj( baseTexture, texcoord )\n")
sa.addShader(fragment_shader)
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# set the osgDB.Registy read file callback to catch all requests for reading files.
osgDB.Registry.instance().setReadFileCallback(MyReadFileCallback())
# initialize the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
rootnode = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if rootnode is None:
rootnode = osgDB.readNodeFile("cow.osgt")
if rootnode is None:
osg.notify(osg.NOTICE), "Please specify a file on the command line"
return 1
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
# insert all the callbacks
icv = InsertCallbacksVisitor()
# rootnode.accept(icv)
cuc = CameraUpdateCallback() # TODO - crashes if I do create this persistent reference
viewer.getCamera().setUpdateCallback( cuc )
ceu = CameraEventCallback() # TODO - crashes if I do create this persistent reference
viewer.getCamera().setEventCallback(ceu)
# set the scene to render
viewer.setSceneData(rootnode)
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("cow.osgt")
if not loadedModel :
osg.notify(osg.NOTICE), "Please specifiy a filename and the command line"
return 1
# decorate the scenegraph with a clip node.
rootnode = decorate_with_clip_node(loadedModel)
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
viewer = osgViewer.Viewer()
# set the scene to render
viewer.setSceneData(rootnode)
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("glider.osgt")
# create a room made of foor walls, a floor, a roof, and swinging light fitting.
rootnode = createRoom(loadedModel)
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( rootnode )
# create the windows and run the threads.
viewer.realize()
viewer.getCamera().setCullingMode( viewer.getCamera().getCullingMode() ~osg.CullStack.SMALL_FEATURE_CULLING)
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# add local test manipulator more suitable for testing impostors.
viewer.setCameraManipulator(TestManipulator)()
# load the nodes from the commandline arguments.
model = osgDB.readNodeFiles(arguments)
if model :
# the osgSim.InsertImpostorsVisitor used lower down to insert impostors
# only operators on subclass of Group's, if the model top node is not
# a group then it won't be able to insert an impostor. We therefore
# manually insert an impostor above the model.
if dynamic_cast<osg.Group*>(model)==0 :
bs = model.getBound()
if bs.valid() :
impostor = osgSim.Impostor()
# standard LOD settings
impostor.addChild(model)
impostor.setRange(0,0.0,1e7f)
impostor.setCenter(bs.center())
# impostor specfic settings.
impostor.setImpostorThresholdToBound(5.0)
model = impostor
# we insert an impostor node above the model, so we keep a handle
# on the rootnode of the model, the is required since the
# InsertImpostorsVisitor can add a root in automatically and
# we would know about it, other than by following the parent path
# up from model. This is really what should be done, but I'll pass
# on it right now as it requires a getRoots() method to be added to
# osg.Node, and we're about to make a release so no features not
rootnode = osg.Group()
rootnode.addChild(model)
# now insert impostors in the model using the InsertImpostorsVisitor.
ov = osgSim.InsertImpostorsVisitor()
# traverse the model and collect all osg.Group's and osg.LOD's.
# however, don't traverse the rootnode since we want to keep it as
# the start of traversal, otherwise the insertImpostor could insert
# and Impostor above the current root, making it nolonger a root not
model.accept(ov)
# insert the Impostors above groups and LOD's
ov.insertImpostors()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
maxNumLevels = 16
targetNumIndicesPerLeaf = 16
while arguments.read("--max", maxNumLevels) :
while arguments.read("--leaf", targetNumIndicesPerLeaf) :
osgDB.Registry.instance().setBuildKdTreesHint(osgDB.ReaderWriter.Options.BUILD_KDTREES)
scene = osgDB.readNodeFiles(arguments)
if not scene :
print "No model loaded, please specify a valid model on the command line."
return 0
viewer = osgViewer.Viewer()
viewer.setSceneData(scene)
return viewer.run()
if __name__ == "__main__":
main(sys.argv)
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel: loadedModel = osgDB.readNodeFile("cow.osgt")
if not loadedModel:
osg.notify(
osg.NOTICE), "Please specifiy a filename and the command line"
return 1
# decorate the scenegraph with a clip node.
rootnode = decorate_with_clip_node(loadedModel)
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
viewer = osgViewer.Viewer()
# set the scene to render
viewer.setSceneData(rootnode)
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
rootnode = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not rootnode : rootnode = osgDB.readNodeFile("cessnafire.osgt")
if not rootnode :
osg.notify(osg.NOTICE), "Please specify a model filename on the command line."
return 1
image = osgDB.readImageFile("Images/reflect.rgb")
if image :
texture = osg.Texture2D()
texture.setImage(image)
texgen = osg.TexGen()
texgen.setMode(osg.TexGen.SPHERE_MAP)
texenv = osg.TexEnv()
texenv.setMode(osg.TexEnv.BLEND)
texenv.setColor(osg.Vec4(0.3,0.3,0.3,0.3))
stateset = osg.StateSet()
stateset.setTextureAttributeAndModes(1,texture,osg.StateAttribute.ON)
stateset.setTextureAttributeAndModes(1,texgen,osg.StateAttribute.ON)
stateset.setTextureAttribute(1,texenv)
rootnode.setStateSet(stateset)
else:
osg.notify(osg.NOTICE), "unable to load reflect map, model will not be mutlitextured"
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( rootnode )
# create the windows and run the threads.
viewer.realize()
for(unsigned int contextID = 0
contextID<osg.DisplaySettings.instance().getMaxNumberOfGraphicsContexts()
++contextID)
textExt = osg.Texture.getExtensions(contextID,False)
if textExt :
if not textExt.isMultiTexturingSupported() :
print "Warning: multi-texturing not supported by OpenGL drivers, unable to run application."
return 1
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(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 use of convex planer occluders.")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...")
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
arguments.getApplicationUsage().addCommandLineOption("-m","Mannually create occluders")
# initialize the viewer.
viewer = osgViewer.Viewer()
manuallyCreateOccluders = False
while arguments.read("-m") : manuallyCreateOccluders = True
if manuallyCreateOccluders :
viewer.addEventHandler(OccluderEventHandler(viewer))
# if user requests help write it out to cout.
if arguments.read("-h") or arguments.read("--help") :
arguments.getApplicationUsage().write(std.cout)
return 1
# load the nodes from the commandline arguments.
loadedmodel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try using default mode instead.
if not loadedmodel : loadedmodel = osgDB.readNodeFile("glider.osgt")
if not loadedmodel :
osg.notify(osg.NOTICE), "Please specify a model filename on the command line."
return 1
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(loadedmodel)
# add the occluders to the loaded model.
rootnode = osg.Group()
if manuallyCreateOccluders :
rootnode = osg.Group()
rootnode.addChild(loadedmodel)
else:
rootnode = createOccludersAroundModel(loadedmodel)
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( rootnode )
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage().setApplicationName(arguments.getApplicationName())
arguments.getApplicationUsage().setDescription(arguments.getApplicationName()+" is an OpenSceneGraph example that shows how to use the accumulation buffer to achieve a simple motion blur effect.")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...")
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
arguments.getApplicationUsage().addCommandLineOption("-P or --persistence","Set the motion blur persistence time")
# construct the viewer.
viewer = osgViewer.Viewer()
# if user request help write it out to cout.
if arguments.read("-h") or arguments.read("--help") :
arguments.getApplicationUsage().write(std.cout)
return 1
persistence = 0.25
arguments.read("-P", persistence) or arguments.read("--persistence", persistence)
# read the scene from the list of file specified commandline args.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("cow.osgt")
# if no model has been successfully loaded report failure.
if not loadedModel :
print arguments.getApplicationName(), ": No data loaded"
return 1
# set the display settings we can to request, OsgCameraGroup will read this.
osg.DisplaySettings.instance().setMinimumNumAccumBits(8,8,8,8)
# pass the loaded scene graph to the viewer.
viewer.setSceneData(loadedModel)
# create the windows and run the threads.
viewer.realize()
windows = osgViewer.Viewer.Windows()
viewer.getWindows(windows)
for(osgViewer.Viewer.Windows.iterator itr = windows.begin()
not = windows.end()
++itr)
(*itr).add(MotionBlurOperation(persistence))
def main(argv):
arguments = osg.ArgumentParser( argc, argv )
root = osgDB.readNodeFiles( arguments )
if root == NULL :
osg.notify( osg.FATAL ), "Unable to load model from command line."
return( 1 )
configureShaders( root.getOrCreateStateSet() )
int width( 800 ), height( 450 )
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# load the images specified on command line
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("dumptruck.osgt")
if not loadedModel :
osg.notify(osg.NOTICE), arguments.getApplicationUsage().getCommandLineUsage()
return 0
stateset = create1DTextureStateToDecorate(loadedModel)
if not stateset :
print "Error: failed to create 1D texture state."
return 1
loadedModel.setStateSet(stateset)
osg. Group *root = osg. Group()
root . addChild( loadedModel )
# The contour banded color texture is used in conjunction with TexGenNode
# to create contoured models, either in object linear coords - like
# contours on a map, or eye linear which contour the distance from
# the eye. An app callback toggles between the two tex gen modes.
texgenNode = osg.TexGenNode()
texgenNode.setReferenceFrame( osg.TexGenNode.ABSOLUTE_RF )
texgenNode.getTexGen().setMode( osg.TexGen.OBJECT_LINEAR )
bs = loadedModel.getBound()
zBase = bs.center().z()-bs.radius()
zScale = 2.0/bs.radius()
texgenNode.getTexGen().setPlane(osg.TexGen.S,osg.Plane(0.0,0.0,zScale,-zBase))
texgenNode.setUpdateCallback(AnimateTexGenCallback())
root . addChild( texgenNode )
viewer.setSceneData( root )
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(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 how to use glBlendEquation for mixing rendered scene and the frame-buffer.")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...")
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
# construct the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("cessnafire.osgt")
if not loadedModel :
print arguments.getApplicationName(), ": No data loaded"
return 1
root = osg.Group()
root.addChild(loadedModel)
stateset = osg.StateSet()
stateset.setDataVariance(osg.Object.DYNAMIC)
blendEquation = osg.BlendEquation(osg.BlendEquation.FUNC_ADD)
blendEquation.setDataVariance(osg.Object.DYNAMIC)
stateset.setAttributeAndModes(blendEquation,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
#tell to sort the mesh before displaying it
stateset.setRenderingHint(osg.StateSet.TRANSPARENT_BIN)
loadedModel.setStateSet(stateset)
viewer.addEventHandler(TechniqueEventHandler(blendEquation))
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( root )
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# add the state manipulator
viewer.addEventHandler( osgGA.StateSetManipulator(viewer.getCamera().getOrCreateStateSet()) )
# add stats
viewer.addEventHandler( osgViewer.StatsHandler() )
needToSetHomePosition = False
# read the scene from the list of file specified commandline args.
scene = osgDB.readNodeFiles(arguments)
# if one hasn't been loaded create an earth and sun test model.
if not scene :
scene = createScene()
needToSetHomePosition = True
# pass the loaded scene graph to the viewer.
viewer.setSceneData(scene)
viewer.setCameraManipulator(osgGA.TrackballManipulator)()
if needToSetHomePosition :
viewer.getCameraManipulator().setHomePosition(osg.Vec3d(0.0,-5.0*r_earth,0.0),osg.Vec3d(0.0,0.0,0.0),osg.Vec3d(0.0,0.0,1.0))
zNear = 1.0, zMid=10.0, zFar=1000.0
if arguments.read("--depth-partition",zNear, zMid, zFar) :
# set up depth partitioning
dps = osgViewer.DepthPartitionSettings()
dps._mode = osgViewer.DepthPartitionSettings.FIXED_RANGE
dps._zNear = zNear
dps._zMid = zMid
dps._zFar = zFar
viewer.setUpDepthPartition(dps)
else:
# set up depth partitioning with default settings
viewer.setUpDepthPartition()
return viewer.run()
def main(argv):
if argc<2 :
print argv[0], ": requires filename argument."
return 1
arguments = osg.ArgumentParser(argv)
# load the scene.
loadedModel = osgDB.readNodeFiles(arguments)
if not loadedModel :
print argv[0], ": No data loaded."
return 1
if arguments.read("--CompositeViewer") :
width = 1024
height = 800
viewerWindow = CompositeViewerFLTK(100,100,width,height)
viewerWindow.resizable(viewerWindow)
view1 = osgViewer.View()
view1.getCamera().setGraphicsContext(viewerWindow.getGraphicsWindow())
view1.getCamera().setProjectionMatrixAsPerspective(30.0, static_cast<double>(width)/static_cast<double>(height/2), 1.0, 1000.0)
view1.getCamera().setViewport(osg.Viewport(0,0,width,height/2))
view1.setCameraManipulator(osgGA.TrackballManipulator)()
view1.setSceneData(loadedModel)
viewerWindow.addView(view1)
view2 = osgViewer.View()
view2.getCamera().setGraphicsContext(viewerWindow.getGraphicsWindow())
view2.getCamera().setProjectionMatrixAsPerspective(30.0, static_cast<double>(width)/static_cast<double>(height/2), 1.0, 1000.0)
view2.getCamera().setViewport(osg.Viewport(0,height/2,width,height/2))
view2.setCameraManipulator(osgGA.TrackballManipulator)()
view2.setSceneData(loadedModel)
viewerWindow.addView(view2)
viewerWindow.show()
Fl.set_idle(idle_cb)
return Fl.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("glider.osgt")
if not loadedModel :
osg.notify(osg.NOTICE), "Please specify model filename on the command line."
return 1
root = osg.Group()
root.addChild(loadedModel)
stateset = osg.StateSet()
logicOp = osg.LogicOp(osg.LogicOp.OR_INVERTED)
stateset.setAttributeAndModes(logicOp,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
#tell to sort the mesh before displaying it
stateset.setRenderingHint(osg.StateSet.TRANSPARENT_BIN)
loadedModel.setStateSet(stateset)
# construct the viewer.
viewer = osgViewer.Viewer()
viewer.addEventHandler(TechniqueEventHandler(logicOp))
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(root)
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( root )
return viewer.run()
def main(argv):
arguments = osg.ArgumentParser( argc, argv )
model = osgDB.readNodeFiles( arguments )
if not model : model = osgDB.readNodeFile( "cow.osgt" )
if not model :
print arguments.getApplicationName(), ": No data loaded"
return 1
viewer = CustomViewer()
viewer.addEventHandler( JoystickHandler )()
viewer.addEventHandler( osgViewer.StatsHandler )()
viewer.addEventHandler( osgViewer.WindowSizeHandler )()
viewer.addEventHandler( osgGA.StateSetManipulator(viewer.getCamera().getOrCreateStateSet()) )
viewer.setSceneData( model )
viewer.setUpViewInWindow( 250, 50, 800, 600 )
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# read the scene from the list of file specified commandline args.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("cessna.osgt")
# if no model has been successfully loaded report failure.
if not loadedModel :
print arguments.getApplicationName(), ": No data loaded"
return 1
# optimize the scene graph, remove redundant nodes and state etc.
optimizer = osgUtil.Optimizer()
optimizer.optimize(loadedModel)
# add a transform with a callback to animate the loaded model.
loadedModelTransform = osg.MatrixTransform()
loadedModelTransform.addChild(loadedModel)
nc = osg.AnimationPathCallback(loadedModelTransform.getBound().center(),osg.Vec3(0.0,0.0,1.0),osg.inDegrees(45.0))
loadedModelTransform.setUpdateCallback(nc)
# finally decorate the loaded model so that it has the required multipass/bin scene graph to do the reflection effect.
rootNode = createMirroredScene(loadedModelTransform)
# set the scene to render
viewer.setSceneData(rootNode)
# hint to tell viewer to request stencil buffer when setting up windows
osg.DisplaySettings.instance().setMinimumNumStencilBits(8)
#osgDB.writeNodeFile(*rootNode, "test.osgt")
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# read the scene from the list of file specified commandline args.
scene = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default model instead.
if not scene : scene = osgDB.readNodeFile("dumptruck.osgt")
if not scene :
geode = osg.Geode()
drawable = osg.ShapeDrawable(osg.Box(osg.Vec3(0,0,0), 100))
drawable.setColor(osg.Vec4(0.5, 0.5, 0.5,1))
geode.addDrawable(drawable)
scene = geode
# construct the viewer.
viewer = osgViewer.Viewer()
group = osg.Group()
# add the HUD subgraph.
if scene.valid() : group.addChild(scene)
viewer.setCameraManipulator(osgGA.MultiTouchTrackballManipulator())
viewer.realize()
gc = viewer.getCamera().getGraphicsContext()
#ifdef __APPLE__
# as multitouch is disabled by default, enable it now
win = dynamic_cast<osgViewer.GraphicsWindowCocoa*>(gc)
if win : win.setMultiTouchEnabled(True)
def main(argv):
arguments = osg.ArgumentParser(argv)
# initialize the viewer.
viewer = osgViewer.Viewer(arguments)
ds = viewer.getDisplaySettings() : osg.DisplaySettings: if (viewer.getDisplaySettings()) else instance()
ds.readCommandLine(arguments)
model = osgDB.readNodeFiles(arguments)
if not model :
OSG_NOTICE, "No models loaded, please specify a model file on the command line"
return 1
OSG_NOTICE, "Stereo ", ds.getStereo()
OSG_NOTICE, "StereoMode ", ds.getStereoMode()
viewer.setSceneData(model)
# add the state manipulator
viewer.addEventHandler( osgGA.StateSetManipulator(viewer.getCamera().getOrCreateStateSet()) )
# add the stats handler
viewer.addEventHandler(osgViewer.StatsHandler)()
# add camera manipulator
viewer.setCameraManipulator(osgGA.TrackballManipulator())
OSG_NOTICE, "KeystoneFileNames.size()=", ds.getKeystoneFileNames().size()
for(osg.DisplaySettings.FileNames.iterator itr = ds.getKeystoneFileNames().begin()
not = ds.getKeystoneFileNames().end()
++itr)
OSG_NOTICE, " keystone filename = ", *itr
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(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 use high quality light point, typically used for naviagional lights.")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...")
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
arguments.getApplicationUsage().addCommandLineOption("--sprites","Point sprites.")
# construct the viewer.
viewer = osgViewer.Viewer()
# if user request help write it out to cout.
if arguments.read("-h") or arguments.read("--help") :
arguments.getApplicationUsage().write(std.cout)
return 1
usePointSprites = False
while arguments.read("--sprites") : usePointSprites = True
rootnode = osg.Group()
# load the nodes from the commandline arguments.
rootnode.addChild(osgDB.readNodeFiles(arguments))
rootnode.addChild(createLightPointsDatabase())
rootnode.addChild(CreateBlinkSequenceLightNode())
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( rootnode )
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# add local test manipulator more suitable for testing impostors.
viewer.setCameraManipulator(TestManipulator)()
# load the nodes from the commandline arguments.
model = osgDB.readNodeFiles(arguments)
if model :
# the osgSim.InsertImpostorsVisitor used lower down to insert impostors
# only operators on subclass of Group's, if the model top node is not
# a group then it won't be able to insert an impostor. We therefore
# manually insert an impostor above the model.
if dynamic_cast<osg.Group*>(model)==0 :
bs = model.getBound()
if bs.valid() :
impostor = osgSim.Impostor()
# standard LOD settings
impostor.addChild(model)
impostor.setRange(0,0.0,1e7f)
impostor.setCenter(bs.center())
# impostor specfic settings.
impostor.setImpostorThresholdToBound(5.0)
model = impostor
# we insert an impostor node above the model, so we keep a handle
# on the rootnode of the model, the is required since the
# InsertImpostorsVisitor can add a root in automatically and
# we would know about it, other than by following the parent path
# up from model. This is really what should be done, but I'll pass
# on it right now as it requires a getRoots() method to be added to
# osg.Node, and we're about to make a release so no features not
rootnode = osg.Group()
rootnode.addChild(model)
# now insert impostors in the model using the InsertImpostorsVisitor.
ov = osgSim.InsertImpostorsVisitor()
# traverse the model and collect all osg.Group's and osg.LOD's.
# however, don't traverse the rootnode since we want to keep it as
# the start of traversal, otherwise the insertImpostor could insert
# and Impostor above the current root, making it nolonger a root not
model.accept(ov)
# insert the Impostors above groups and LOD's
ov.insertImpostors()
else:
# no user model so we'll create our own world.
model = Root = osg.Group()
CreateHouses()
LayoutAsGrid()
# add model to viewer.
viewer.setSceneData(model)
return viewer.run()
def main(argv):
arguments = osg.ArgumentParser(argv)
viewer = osgViewer.Viewer(arguments)
if arguments.argc() <= 1 :
cerr, "Need a scene.\n"
return 1
loadedModel = osgDB.readNodeFiles(arguments)
if not loadedModel :
cerr, "couldn't load ", argv[1], "\n"
return 1
optimizer = osgUtil.Optimizer()
optimizer.optimize(loadedModel)
bound = loadedModel.getBound()
displacement = 2.25 * bound.radius()
scene = Group()
rootSS = scene.getOrCreateStateSet()
vertexShader = Shader(Shader.VERTEX)
vertexShader.setShaderSource(vertexShaderSource)
fragmentShader = Shader(Shader.FRAGMENT)
fragmentShader.setShaderSource(fragmentShaderSource)
prog = Program()
prog.addShader(vertexShader)
prog.addShader(fragmentShader)
prog.addBindUniformBlock("colors0", 0)
rootSS.setAttributeAndModes(prog, StateAttribute.ON)
# Place 3 instances of the loaded model with different uniform
# blocks for each.
#
# The blocksize is known because of the std140 format.
blockSize = 20 * sizeof(GLfloat)
colorArray = FloatArray(colors1[0],
colors1[sizeof(colors1) / sizeof(GLfloat)])
ubo = UniformBufferObject()
colorArray.setBufferObject(ubo)
group1 = Group()
ss1 = group1.getOrCreateStateSet()
group1.addChild(loadedModel)
scene.addChild(group1)
ubb1 = UniformBufferBinding(0, ubo, 0, blockSize)
ss1.setAttributeAndModes(ubb1, StateAttribute.ON)
colorArray2 = FloatArray(colors2[0],
colors2[sizeof(colors2) / sizeof(GLfloat)])
ubo2 = UniformBufferObject()
colorArray2.setBufferObject(ubo2)
group2 = MatrixTransform()
mat2 = Matrix.translate(-displacement, 0.0, 0.0)
group2.setMatrix(mat2)
ss2 = group2.getOrCreateStateSet()
group2.addChild(loadedModel)
scene.addChild(group2)
ubb2 = UniformBufferBinding(0, ubo2, 0, blockSize)
ss2.setAttributeAndModes(ubb2, StateAttribute.ON)
colorArray3 = FloatArray(colors2[0],
colors2[sizeof(colors2) / sizeof(GLfloat)])
ubo3 = UniformBufferObject()
colorArray3.setBufferObject(ubo3)
group3 = MatrixTransform()
mat3 = Matrix.translate(displacement, 0.0, 0.0)
group3.setMatrix(mat3)
ss3 = group3.getOrCreateStateSet()
group3.addChild(loadedModel)
scene.addChild(group3)
ubb3 = UniformBufferBinding(0, ubo3, 0, blockSize)
ubb3.setUpdateCallback(UniformCallback)()
ubb3.setDataVariance(Object.DYNAMIC)
ss3.setAttributeAndModes(ubb3, StateAttribute.ON)
viewer.setSceneData(scene)
viewer.realize()
return viewer.run()
if helpType :
arguments.getApplicationUsage().write(std.cout, helpType)
return 1
# report any errors if they have occurred when parsing the program arguments.
if arguments.errors() :
arguments.writeErrorMessages(std.cout)
return 1
dragger_name = "TabBoxDragger"
arguments.read("--dragger", dragger_name)
start_tick = osg.Timer.instance().tick()
# read the scene from the list of file specified command line args.
loadedModel = osgDB.readNodeFiles(arguments)
# if no model has been successfully loaded report failure.
tragger2Scene = bool(True)
if not loadedModel :
#print arguments.getApplicationName(), ": No data loaded"
#return 1
loadedModel = createDemoScene(fixedSizeInScreen)
tragger2Scene=False
# any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized()
# report any errors if they have occurred when parsing the program arguments.
if arguments.errors() :
arguments.writeErrorMessages(std.cout)
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# read the scene from the list of file specified commandline args.
scene = osgDB.readNodeFiles(arguments)
if not scene and arguments.read("--relative-camera-scene") :
# Create a test scene with a camera that has a relative reference frame.
group = osg.Group()
sphere = osg.Geode()
sphere.setName("Sphere")
sphere.addDrawable(osg.ShapeDrawable(osg.Sphere()))
cube = osg.Geode()
cube.setName("Cube")
cube.addDrawable(osg.ShapeDrawable(osg.Box()))
camera = osg.Camera()
camera.setRenderOrder(osg.Camera.POST_RENDER)
camera.setClearMask(GL_DEPTH_BUFFER_BIT)
camera.setReferenceFrame(osg.Transform.RELATIVE_RF)
camera.setViewMatrix(osg.Matrix.translate(-2, 0, 0))
xform = osg.MatrixTransform(osg.Matrix.translate(1, 1, 1))
xform.addChild(camera)
group.addChild(sphere)
group.addChild(xform)
camera.addChild(cube)
scene = group
# if not loaded assume no arguments passed in, try use default mode instead.
if not scene : scene = osgDB.readNodeFile("fountain.osgt")
group = dynamic_cast<osg.Group*>(scene)
if not group :
group = osg.Group()
group.addChild(scene)
updateText = osgText.Text()
# add the HUD subgraph.
group.addChild(createHUD(updateText))
if arguments.read("--CompositeViewer") :
view = osgViewer.View()
# add the handler for doing the picking
view.addEventHandler(PickHandler(updateText))
# set the scene to render
view.setSceneData(group)
view.setUpViewAcrossAllScreens()
viewer = osgViewer.CompositeViewer()
viewer.addView(view)
return viewer.run()
else:
viewer = osgViewer.Viewer()
# add all the camera manipulators
keyswitchManipulator = osgGA.KeySwitchMatrixManipulator()
keyswitchManipulator.addMatrixManipulator( ord("1"), "Trackball", osgGA.TrackballManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("2"), "Flight", osgGA.FlightManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("3"), "Drive", osgGA.DriveManipulator() )
num = keyswitchManipulator.getNumMatrixManipulators()
keyswitchManipulator.addMatrixManipulator( ord("4"), "Terrain", osgGA.TerrainManipulator() )
pathfile = str()
keyForAnimationPath = ord("5")
while arguments.read("-p",pathfile) :
apm = osgGA.AnimationPathManipulator(pathfile)
if apm or not apm.valid() :
num = keyswitchManipulator.getNumMatrixManipulators()
keyswitchManipulator.addMatrixManipulator( keyForAnimationPath, "Path", apm )
++keyForAnimationPath
keyswitchManipulator.selectMatrixManipulator(num)
viewer.setCameraManipulator( keyswitchManipulator )
# add the handler for doing the picking
viewer.addEventHandler(PickHandler(updateText))
# set the scene to render
viewer.setSceneData(group)
return viewer.run()
def main(argv):
arguments = osg.ArgumentParser( argc, argv )
root = osg.Group()
# Child 0: We'll replace this every frame with an updated representation
# of the view frustum.
root.addChild( makeFrustumFromCamera( NULL ) )
scene = osg.Node()
scene = osgDB.readNodeFiles( arguments )
if not scene :
# User didn't specify anything, or file(s) didn't exist.
# Try to load the cow...
osg.notify( osg.WARN ), arguments.getApplicationName(), ": Could not find specified files. Trying \"cow.osgt\" instead."
if not (scene = osgDB.readNodeFile( str( "cow.osgt" ) ) ) :
osg.notify( osg.FATAL ), arguments.getApplicationName(), ": No data loaded."
return 1
root.addChild( scene )
viewer = osgViewer.CompositeViewer( arguments )
# Turn on FSAA, makes the lines look better.
osg.DisplaySettings.instance().setNumMultiSamples( 4 )
# Create View 0 -- Just the loaded model.
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# read the scene from the list of file specified commandline args.
scene = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default model instead.
if not scene : scene = osgDB.readNodeFile("dumptruck.osgt")
if not scene :
osg.notify(osg.NOTICE), "No model loaded"
return 1
if arguments.read("--Viewer") :
# construct the viewer.
viewer = osgViewer.Viewer()
# create a HUD as slave camera attached to the master view.
viewer.setUpViewAcrossAllScreens()
windows = osgViewer.Viewer.Windows()
viewer.getWindows(windows)
if windows.empty() : return 1
hudCamera = createHUD()
# set up cameras to render on the first window available.
hudCamera.setGraphicsContext(windows[0])
hudCamera.setViewport(0,0,windows[0].getTraits().width, windows[0].getTraits().height)
viewer.addSlave(hudCamera, False)
# set the scene to render
viewer.setSceneData(scene)
return viewer.run()
if arguments.read("--CompositeViewer") :
# construct the viewer.
viewer = osgViewer.CompositeViewer()
# create the main 3D view
view = osgViewer.View()
viewer.addView(view)
view.setSceneData(scene)
view.setUpViewAcrossAllScreens()
view.setCameraManipulator(osgGA.TrackballManipulator)()
# now create the HUD camera's view
windows = osgViewer.Viewer.Windows()
viewer.getWindows(windows)
if windows.empty() : return 1
hudCamera = createHUD()
# set up cameras to render on the first window available.
hudCamera.setGraphicsContext(windows[0])
hudCamera.setViewport(0,0,windows[0].getTraits().width, windows[0].getTraits().height)
hudView = osgViewer.View()
hudView.setCamera(hudCamera)
viewer.addView(hudView)
return viewer.run()
else:
# construct the viewer.
viewer = osgViewer.Viewer()
postDrawCallback = SnapImage("PostDrawCallback.png")
viewer.getCamera().setPostDrawCallback(postDrawCallback)
viewer.addEventHandler(SnapeImageHandler(ord("p"),postDrawCallback))
finalDrawCallback = SnapImage("FinalDrawCallback.png")
viewer.getCamera().setFinalDrawCallback(finalDrawCallback)
viewer.addEventHandler(SnapeImageHandler(ord("f"),finalDrawCallback))
group = osg.Group()
# add the HUD subgraph.
if scene.valid() : group.addChild(scene)
group.addChild(createHUD())
# set the scene to render
viewer.setSceneData(group)
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
scene = osgDB.readNodeFiles(arguments)
if not scene :
print "No model loaded, please specify a valid model on the command line."
return 0
print "Intersection "
bs = scene.getBound()
useIntersectorGroup = True
useLineOfSight = True
#osg.CoordinateSystemNode* csn = dynamic_cast<osg.CoordinateSystemNode*>(scene)
#osg.EllipsoidModel* em = csn.getEllipsoidModel() if (csn) else 0
if useLineOfSight :
start = bs.center() + osg.Vec3d(0.0,bs.radius(),0.0)
end = bs.center() - osg.Vec3d(0.0, bs.radius(),0.0)
deltaRow = osg.Vec3d( 0.0, 0.0, bs.radius()*0.01)
deltaColumn = osg.Vec3d( bs.radius()*0.01, 0.0, 0.0)
los = osgSim.LineOfSight()
#if 1
numRows = 20
numColumns = 20
hat = osgSim.HeightAboveTerrain()
hat.setDatabaseCacheReadCallback(los.getDatabaseCacheReadCallback())
for(unsigned int r=0 r<numRows ++r)
for(unsigned int c=0 c<numColumns ++c)
s = start + deltaColumn * double(c) + deltaRow * double(r)
e = end + deltaColumn * double(c) + deltaRow * double(r)
los.addLOS(s,e)
hat.addPoint(s)
print "Computing LineOfSight"
startTick = osg.Timer.instance().tick()
los.computeIntersections(scene)
endTick = osg.Timer.instance().tick()
print "Completed in ", osg.Timer.instance().delta_s(startTick,endTick)
for(unsigned int i=0 i<los.getNumLOS() i++)
intersections = los.getIntersections(i)
for(osgSim.LineOfSight.Intersections.const_iterator itr = intersections.begin()
not = intersections.end()
++itr)
print " point ", *itr
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("cow.osgt")
if not loadedModel :
print arguments.getApplicationName(), ": No data loaded"
return 1
if arguments.read("--dome") or arguments.read("--puffer") :
setDomeCorrection(viewer, arguments)
viewer.setSceneData( loadedModel )
elif arguments.read("--faces") :
setDomeFaces(viewer, arguments)
viewer.setSceneData( loadedModel )
else:
distortionNode = createDistortionSubgraph( loadedModel, viewer.getCamera().getClearColor())
viewer.setSceneData( distortionNode )
while arguments.read("--sky-light") :
viewer.setLightingMode(osg.View.SKY_LIGHT)
if viewer.getLightingMode()==osg.View.HEADLIGHT :
viewer.getLight().setPosition(osg.Vec4(0.0,0.0,0.0,1.0))
# load the nodes from the commandline arguments.
if not viewer.getSceneData() :
osg.notify(osg.NOTICE), "Please specify a model filename on the command line."
return 1
# set up the camera manipulators.
keyswitchManipulator = osgGA.KeySwitchMatrixManipulator()
keyswitchManipulator.addMatrixManipulator( ord("1"), "Trackball", osgGA.TrackballManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("2"), "Flight", osgGA.FlightManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("3"), "Drive", osgGA.DriveManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("4"), "Terrain", osgGA.TerrainManipulator() )
pathfile = str()
keyForAnimationPath = ord("5")
while arguments.read("-p",pathfile) :
apm = osgGA.AnimationPathManipulator(pathfile)
if apm or not apm.valid() :
num = keyswitchManipulator.getNumMatrixManipulators()
keyswitchManipulator.addMatrixManipulator( keyForAnimationPath, "Path", apm )
keyswitchManipulator.selectMatrixManipulator(num)
++keyForAnimationPath
viewer.setCameraManipulator( keyswitchManipulator )
viewer.setThreadingModel(osgViewer.Viewer.SingleThreaded)
# add the state manipulator
viewer.addEventHandler( osgGA.StateSetManipulator(viewer.getCamera().getOrCreateStateSet()) )
# add the stats handler
viewer.addEventHandler(osgViewer.StatsHandler)()
return viewer.run()
def main(argv):
arguments = osg.ArgumentParser( argc, argv )
usage = arguments.getApplicationUsage()
usage.setDescription( arguments.getApplicationName() +
" is the example which demonstrates how to render high-resolution images (posters).")
usage.setCommandLineUsage( arguments.getApplicationName() + " [options] scene_file" )
usage.addCommandLineOption( "-h or --help", "Display this information." )
usage.addCommandLineOption( "--color <r> <g> <b>", "The background color." )
usage.addCommandLineOption( "--ext <ext>", "The output tiles' extension (Default: bmp)." )
usage.addCommandLineOption( "--poster <filename>", "The output poster's name (Default: poster.bmp)." )
usage.addCommandLineOption( "--tilesize <w> <h>", "Size of each image tile (Default: 640 480)." )
usage.addCommandLineOption( "--finalsize <w> <h>", "Size of the poster (Default: 6400 4800)." )
usage.addCommandLineOption( "--enable-output-poster", "Output the final poster file (Default)." )
usage.addCommandLineOption( "--disable-output-poster", "Don't output the final poster file." )
#usage.addCommandLineOption( "--enable-output-tiles", "Output all tile files." )
#usage.addCommandLineOption( "--disable-output-tiles", "Don't output all tile files (Default)." )
usage.addCommandLineOption( "--use-fb", "Use Frame Buffer for rendering tiles (Default, recommended).")
usage.addCommandLineOption( "--use-fbo", "Use Frame Buffer Object for rendering tiles.")
usage.addCommandLineOption( "--use-pbuffer","Use Pixel Buffer for rendering tiles.")
usage.addCommandLineOption( "--use-pbuffer-rtt","Use Pixel Buffer RTT for rendering tiles.")
usage.addCommandLineOption( "--inactive", "Inactive capturing mode." )
usage.addCommandLineOption( "--camera-eye <x> <y> <z>", "Set eye position in inactive mode." )
usage.addCommandLineOption( "--camera-latlongheight <lat> <lon> <h>", "Set eye position on earth in inactive mode." )
usage.addCommandLineOption( "--camera-hpr <h> <p> <r>", "Set eye rotation in inactive mode." )
if arguments.read("-h") or arguments.read("--help") :
usage.write( std.cout )
return 1
# Poster arguments
activeMode = True
outputPoster = True
#bool outputTiles = False
tileWidth = 640, tileHeight = 480
posterWidth = 640*2, posterHeight = 480*2
posterName = "poster.bmp", extName = "bmp"
bgColor = osg.Vec4(0.2, 0.2, 0.6, 1.0)
renderImplementation = osg.Camera.FRAME_BUFFER_OBJECT
while arguments.read("--inactive") : activeMode = False
while arguments.read("--color", bgColor.r(), bgColor.g(), bgColor.b()) :
while arguments.read("--tilesize", tileWidth, tileHeight) :
while arguments.read("--finalsize", posterWidth, posterHeight) :
while arguments.read("--poster", posterName) :
while arguments.read("--ext", extName) :
while arguments.read("--enable-output-poster") : outputPoster = True
while arguments.read("--disable-output-poster") : outputPoster = False
#while arguments.read("--enable-output-tiles") : outputTiles = True
#while arguments.read("--disable-output-tiles") : outputTiles = False
while arguments.read("--use-fbo") : renderImplementation = osg.Camera.FRAME_BUFFER_OBJECT
while arguments.read("--use-pbuffer") : renderImplementation = osg.Camera.PIXEL_BUFFER
while arguments.read("--use-pbuffer-rtt") : renderImplementation = osg.Camera.PIXEL_BUFFER_RTT
while arguments.read("--use-fb") : renderImplementation = osg.Camera.FRAME_BUFFER
# Camera settings for inactive screenshot
useLatLongHeight = True
eye = osg.Vec3d()
latLongHeight = osg.Vec3d( 50.0, 10.0, 2000.0 )
hpr = osg.Vec3d( 0.0, 0.0, 0.0 )
if arguments.read("--camera-eye", eye.x(), eye.y(), eye.z()) :
useLatLongHeight = False
activeMode = False
elif arguments.read("--camera-latlongheight", latLongHeight.x(), latLongHeight.y(), latLongHeight.z()) :
activeMode = False
latLongHeight.x() = osg.DegreesToRadians( latLongHeight.x() )
latLongHeight.y() = osg.DegreesToRadians( latLongHeight.y() )
if arguments.read("--camera-hpr", hpr.x(), hpr.y(), hpr.z()) :
activeMode = False
hpr.x() = osg.DegreesToRadians( hpr.x() )
hpr.y() = osg.DegreesToRadians( hpr.y() )
hpr.z() = osg.DegreesToRadians( hpr.z() )
# Construct scene graph
scene = osgDB.readNodeFiles( arguments )
if not scene : scene = osgDB.readNodeFile( "cow.osgt" )
if not scene :
print arguments.getApplicationName(), ": No data loaded"
return 1
# Create camera for rendering tiles offscreen. FrameBuffer is recommended because it requires less memory.
camera = osg.Camera()
camera.setClearColor( bgColor )
camera.setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT )
camera.setReferenceFrame( osg.Transform.ABSOLUTE_RF )
camera.setRenderOrder( osg.Camera.PRE_RENDER )
camera.setRenderTargetImplementation( renderImplementation )
camera.setViewport( 0, 0, tileWidth, tileHeight )
camera.addChild( scene )
# Set the printer
printer = PosterPrinter()
printer.setTileSize( tileWidth, tileHeight )
printer.setPosterSize( posterWidth, posterHeight )
printer.setCamera( camera )
posterImage = 0
if outputPoster :
posterImage = osg.Image()
posterImage.allocateImage( posterWidth, posterHeight, 1, GL_RGBA, GL_UNSIGNED_BYTE )
printer.setFinalPoster( posterImage )
printer.setOutputPosterName( posterName )
#if 0
# While recording sub-images of the poster, the scene will always be traversed twice, from its two
# parent node: root and camera. Sometimes this may not be so comfortable.
# To prevent this behaviour, we can use a switch node to enable one parent and disable the other.
# However, the solution also needs to be used with care, as the window will go blank while taking
# snapshots and recover later.
root = osg.Switch()
root.addChild( scene, True )
root.addChild( camera, False )
#else:
root = osg.Group()
root.addChild( scene )
root.addChild( camera )
#endif
viewer = osgViewer.Viewer()
viewer.setSceneData( root )
viewer.getDatabasePager().setDoPreCompile( False )
if renderImplementation==osg.Camera.FRAME_BUFFER :
# FRAME_BUFFER requires the window resolution equal or greater than the to-be-copied size
viewer.setUpViewInWindow( 100, 100, tileWidth, tileHeight )
else:
# We want to see the console output, so just render in a window
viewer.setUpViewInWindow( 100, 100, 800, 600 )
if activeMode :
viewer.addEventHandler( PrintPosterHandler(printer) )
viewer.addEventHandler( osgViewer.StatsHandler )()
viewer.addEventHandler( osgGA.StateSetManipulator(viewer.getCamera().getOrCreateStateSet()) )
viewer.setCameraManipulator( osgGA.TrackballManipulator )()
viewer.run()
else:
camera = viewer.getCamera()
if not useLatLongHeight : computeViewMatrix( camera, eye, hpr )
computeViewMatrixOnEarth = else( camera, scene, latLongHeight, hpr )
renderer = CustomRenderer( camera )
camera.setRenderer( renderer )
viewer.setThreadingModel( osgViewer.Viewer.SingleThreaded )
# Realize and initiate the first PagedLOD request
viewer.realize()
viewer.frame()
printer.init( camera )
while not printer.done() :
viewer.advance()
# Keep updating and culling until full level of detail is reached
renderer.setCullOnly( True )
while viewer.getDatabasePager().getRequestsInProgress() :
viewer.updateTraversal()
viewer.renderingTraversals()
renderer.setCullOnly( False )
printer.frame( viewer.getFrameStamp(), viewer.getSceneData() )
viewer.renderingTraversals()
return 0
# Translated from file 'PosterPrinter.cpp'
#include <osg/ClusterCullingCallback>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <string.h>
#include <iostream>
#include <sstream>
#include "PosterPrinter.h"
# PagedLoadingCallback: Callback for loading paged nodes while doing intersecting test
class PagedLoadingCallback (osgUtil.IntersectionVisitor.ReadCallback) :
def readNodeFile(filename):
return osgDB.readNodeFile( filename )
static PagedLoadingCallback g_pagedLoadingCallback = PagedLoadingCallback()
# LodCullingCallback: Callback for culling LODs and selecting the highest level
class LodCullingCallback (osg.NodeCallback) :
virtual void operator()( osg.Node* node, osg.NodeVisitor* nv )
lod = static_cast<osg.LOD*>(node)
if lod and lod.getNumChildren()>0 :
lod.getChild(lod.getNumChildren()-1).accept(*nv)
static LodCullingCallback g_lodCullingCallback = LodCullingCallback()
# PagedCullingCallback: Callback for culling paged nodes and selecting the highest level
class PagedCullingCallback (osg.NodeCallback) :
virtual void operator()( osg.Node* node, osg.NodeVisitor* nv )
pagedLOD = static_cast<osg.PagedLOD*>(node)
if pagedLOD and pagedLOD.getNumChildren()>0 :
numChildren = pagedLOD.getNumChildren()
updateTimeStamp = nv.getVisitorType()==osg.NodeVisitor.CULL_VISITOR
if nv.getFrameStamp() and updateTimeStamp :
timeStamp = nv.getFrameStamp().getReferenceTime() if (nv.getFrameStamp()) else 0.0
frameNumber = nv.getFrameStamp().getFrameNumber() if (nv.getFrameStamp()) else 0
pagedLOD.setFrameNumberOfLastTraversal( frameNumber )
pagedLOD.setTimeStamp( numChildren-1, timeStamp )
pagedLOD.setFrameNumber( numChildren-1, frameNumber )
pagedLOD.getChild(numChildren-1).accept(*nv)
# Request for child
if not pagedLOD.getDisableExternalChildrenPaging() and
nv.getDatabaseRequestHandler() and
numChildren<pagedLOD.getNumRanges() :
if pagedLOD.getDatabasePath().empty() :
nv.getDatabaseRequestHandler().requestNodeFile(
pagedLOD.getFileName(numChildren), nv.getNodePath(),
1.0, nv.getFrameStamp(),
pagedLOD.getDatabaseRequest(numChildren), pagedLOD.getDatabaseOptions() )
else:
nv.getDatabaseRequestHandler().requestNodeFile(
pagedLOD.getDatabasePath()+pagedLOD.getFileName(numChildren), nv.getNodePath(),
1.0, nv.getFrameStamp(),
pagedLOD.getDatabaseRequest(numChildren), pagedLOD.getDatabaseOptions() )
#node.traverse(*nv)
static PagedCullingCallback g_pagedCullingCallback = PagedCullingCallback()
# PosterVisitor: A visitor for adding culling callbacks to newly allocated paged nodes
PosterVisitor.PosterVisitor()
: osg.NodeVisitor(osg.NodeVisitor.TRAVERSE_ALL_CHILDREN),
_appliedCount(0), _needToApplyCount(0),
_addingCallbacks(True)
void PosterVisitor.apply( osg.LOD node )
#if not hasCullCallback(node.getCullCallback(), g_lodCullingCallback) :
#
# if not node.getName().empty() :
#
# itr = _pagedNodeNames.find( node.getName() )
# if itr not =_pagedNodeNames.end() :
#
# insertCullCallback( node, g_lodCullingCallback )
# _appliedCount++
#
#
#
# def if _addingCallbacks .
#
# node.removeCullCallback( g_lodCullingCallback )
# _appliedCount--
#
traverse( node )
void PosterVisitor.apply( osg.PagedLOD node )
if not hasCullCallback(node.getCullCallback(), g_pagedCullingCallback) :
for ( unsigned int i=0 i<node.getNumFileNames() ++i )
if node.getFileName(i).empty() : continue
itr = _pagedNodeNames.find( node.getFileName(i) )
if itr not =_pagedNodeNames.end() :
node.addCullCallback( g_pagedCullingCallback )
_appliedCount++
break
def if _addingCallbacks .
node.removeCullCallback( g_pagedCullingCallback )
if _appliedCount>0 : _appliedCount--
traverse( node )
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage().setApplicationName(arguments.getApplicationName())
arguments.getApplicationUsage().setDescription(arguments.getApplicationName()+" creates a hierarchy of files for paging which can be later loaded by viewers.")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...")
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
arguments.getApplicationUsage().addCommandLineOption("-o","set the output file (defaults to output.ive)")
arguments.getApplicationUsage().addCommandLineOption("--makeAllChildrenPaged","Force all children of LOD to be written out as external PagedLOD children")
# if user request help write it out to cout.
if arguments.read("-h") or arguments.read("--help") :
arguments.getApplicationUsage().write(std.cout)
return 1
outputfile = str("output.ive")
while arguments.read("-o",outputfile) :
makeAllChildrenPaged = False
while arguments.read("--makeAllChildrenPaged") : makeAllChildrenPaged = True
# any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized()
# report any errors if they have occurred when parsing the program arguments.
if arguments.errors() :
arguments.writeErrorMessages(std.cout)
return 1
# if arguments.argc()<=1 :
#
# arguments.getApplicationUsage().write(std.cout,osg.ApplicationUsage.COMMAND_LINE_OPTION)
# return 1
#
model = osgDB.readNodeFiles(arguments)
if not model :
osg.notify(osg.NOTICE), "No model loaded."
return 1
basename = str( osgDB.getNameLessExtension(outputfile) )
ext = ord(".")+ osgDB.getFileExtension(outputfile)
converter = ConvertToPageLODVistor(basename,ext, makeAllChildrenPaged)
model.accept(converter)
converter.convert()
nameNodes = NameVistor()
model.accept(nameNodes)
#CheckVisitor checkNodes
#model.accept(checkNodes)
if model.valid() :
osgDB.writeNodeFile(*model,outputfile)
woplsv = WriteOutPagedLODSubgraphsVistor()
model.accept(woplsv)
return 0
if __name__ == "__main__":
main(sys.argv)
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# construct the viewer.
viewer = osgViewer.Viewer()
# load the nodes from the commandline arguments.
loadedModel = osgDB.readNodeFiles(arguments)
# if not loaded assume no arguments passed in, try use default mode instead.
if not loadedModel : loadedModel = osgDB.readNodeFile("cow.osgt")
if not loadedModel :
osg.notify(osg.NOTICE), "Please specifiy a model filename on the command line."
return 1
# to do scribe mode we create a top most group to contain the
# original model, and then a second group contains the same model
# but overrides various state attributes, so that the second instance
# is rendered as wireframe.
rootnode = osg.Group()
decorator = osg.Group()
rootnode.addChild(loadedModel)
rootnode.addChild(decorator)
decorator.addChild(loadedModel)
# set up the state so that the underlying color is not seen through
# and that the drawing mode is changed to wireframe, and a polygon offset
# is added to ensure that we see the wireframe itself, and turn off
# so texturing too.
stateset = osg.StateSet()
polyoffset = osg.PolygonOffset()
polyoffset.setFactor(-1.0)
polyoffset.setUnits(-1.0)
polymode = osg.PolygonMode()
polymode.setMode(osg.PolygonMode.FRONT_AND_BACK,osg.PolygonMode.LINE)
stateset.setAttributeAndModes(polyoffset,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
stateset.setAttributeAndModes(polymode,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
#if 1
material = osg.Material()
stateset.setAttributeAndModes(material,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
stateset.setMode(GL_LIGHTING,osg.StateAttribute.OVERRIDE|osg.StateAttribute.OFF)
#else:
# version which sets the color of the wireframe.
material = osg.Material()
material.setColorMode(osg.Material.OFF) # switch glColor usage off
# turn all lighting off
material.setAmbient(osg.Material.FRONT_AND_BACK, osg.Vec4(0.0,0.0,0.0,1.0))
material.setDiffuse(osg.Material.FRONT_AND_BACK, osg.Vec4(0.0,0.0,0.0,1.0))
material.setSpecular(osg.Material.FRONT_AND_BACK, osg.Vec4(0.0,0.0,0.0,1.0))
# except emission... in which we set the color we desire
material.setEmission(osg.Material.FRONT_AND_BACK, osg.Vec4(0.0,1.0,0.0,1.0))
stateset.setAttributeAndModes(material,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
stateset.setMode(GL_LIGHTING,osg.StateAttribute.OVERRIDE|osg.StateAttribute.ON)
#endif
stateset.setTextureMode(0,GL_TEXTURE_2D,osg.StateAttribute.OVERRIDE|osg.StateAttribute.OFF)
# osg.LineStipple* linestipple = osg.LineStipple()
# linestipple.setFactor(1)
# linestipple.setPattern(0xf0f0)
# stateset.setAttributeAndModes(linestipple,osg.StateAttribute.OVERRIDE_ON)
decorator.setStateSet(stateset)
# run optimization over the scene graph
optimzer = osgUtil.Optimizer()
optimzer.optimize(rootnode)
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData( rootnode )
return viewer.run()
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage().setApplicationName(arguments.getApplicationName())
arguments.getApplicationUsage().setDescription(arguments.getApplicationName()+" example provides an interactive viewer for visualising point clouds..")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...")
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
arguments.getApplicationUsage().addCommandLineOption("--sprites","Point sprites.")
arguments.getApplicationUsage().addCommandLineOption("--points","Sets the polygon mode to GL_POINT for front and back faces.")
# construct the viewer.
viewer = osgViewer.Viewer()
shader = False
while arguments.read("--shader") : shader = True
# if user request help write it out to cout.
if arguments.read("-h") or arguments.read("--help") :
arguments.getApplicationUsage().write(std.cout)
return 1
usePointSprites = False
while arguments.read("--sprites") : usePointSprites = True
forcePointMode = False
while arguments.read("--points") : forcePointMode = True
if arguments.argc()<=1 :
arguments.getApplicationUsage().write(std.cout,osg.ApplicationUsage.COMMAND_LINE_OPTION)
return 1
# read the scene from the list of file specified commandline args.
loadedModel = osgDB.readNodeFiles(arguments)
# if no model has been successfully loaded report failure.
if not loadedModel :
print arguments.getApplicationName(), ": No data loaded"
return 1
# optimize the scene graph, remove redundant nodes and state etc.
optimizer = osgUtil.Optimizer()
optimizer.optimize(loadedModel)
# set the scene to render
viewer.setSceneData(loadedModel)
stateset = loadedModel.getOrCreateStateSet()
if usePointSprites :
#/ Setup cool blending
fn = osg.BlendFunc()
stateset.setAttributeAndModes(fn, osg.StateAttribute.ON)
#/ Setup the point sprites
sprite = osg.PointSprite()
stateset.setTextureAttributeAndModes(0, sprite, osg.StateAttribute.ON)
#/ The texture for the sprites
tex = osg.Texture2D()
tex.setImage(osgDB.readImageFile("Images/particle.rgb"))
stateset.setTextureAttributeAndModes(0, tex, osg.StateAttribute.ON)
if forcePointMode :
#/ Set polygon mode to GL_POINT
pm = osg.PolygonMode(
osg.PolygonMode.FRONT_AND_BACK, osg.PolygonMode.POINT )
stateset.setAttributeAndModes( pm, osg.StateAttribute.ON | osg.StateAttribute.OVERRIDE)
# register the handler for modifying the point size
viewer.addEventHandler(KeyboardEventHandler(viewer.getCamera().getOrCreateStateSet()))
if shader :
stateset = loadedModel.getOrCreateStateSet()
#################################/
# vertex shader using just Vec4 coefficients
char vertexShaderSource[] =
"void main(void) \n"
" \n"
"\n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex\n"
"\n"
program = osg.Program()
stateset.setAttribute(program)
vertex_shader = osg.Shader(osg.Shader.VERTEX, vertexShaderSource)
program.addShader(vertex_shader)
#if 0
#################################
# fragment shader
#
char fragmentShaderSource[] =
"void main(void) \n"
" \n"
" gl_FragColor = gl_Color \n"
"\n"
