FGFS-4.1/OpenSceneGraph
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Added CameraProperty and associated command line parameters for controlling camera position and animation.

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--center x y z
  --eye x y z
  --up x y z 
  --rotation-center x y z
  --rotation-axis x y z
  --rotation-speed degreesPerSecond
This commit is contained in:
Robert Osfield
2012-12-04 12:47:46 +00:00
parent cbf6745da5
commit b6d19d1052
5 changed files with 201 additions and 19 deletions
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75
examples/osgframerenderer/osgframerenderer.cpp
View File

@@ -5,6 +5,7 @@
#include <osg/AnimationPath>
#include "UpdateProperty.h"
#include "CameraProperty.h"
#include "CameraPathProperty.h"
#include "EventProperty.h"
@@ -65,6 +66,12 @@ int main( int argc, char **argv )
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of 3D textures.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
arguments.getApplicationUsage()->addCommandLineOption("--center x y z","View center");
arguments.getApplicationUsage()->addCommandLineOption("--eye x y z","Camera eye point");
arguments.getApplicationUsage()->addCommandLineOption("--up x y z","Camera up vector");
arguments.getApplicationUsage()->addCommandLineOption("--rotation-center x y z","Position to rotatate around");
arguments.getApplicationUsage()->addCommandLineOption("--rotation-axis x y z","Axis to rotate around");
arguments.getApplicationUsage()->addCommandLineOption("--rotation-speed v","Degrees per second");
osgViewer::Viewer viewer;
@@ -77,12 +84,13 @@ int main( int argc, char **argv )
double fps = 0.0f;
unsigned int nframes = 0;
bool readCaptureSettings = false;
std::string filename;
if (arguments.read("--cs",filename))
{
osg::ref_ptr<osg::Object> object = osgDB::readObjectFile(filename);
gsc::CaptureSettings* input_cs = dynamic_cast<gsc::CaptureSettings*>(object.get());
if (input_cs) fc = input_cs;
if (input_cs) { fc = input_cs; readCaptureSettings = true; }
else OSG_NOTICE<<"Unable to read CaptureSettings from file: "<<filename<<std::endl;
}
if (arguments.read("-i",filename)) fc->setInputFileName(filename);
@@ -117,8 +125,34 @@ int main( int argc, char **argv )
fc->addUpdateProperty(cpp.get());
}
else
{
osg::ref_ptr<gsc::CameraProperty> cp = fc->getPropertyOfType<gsc::CameraProperty>();
if (!cp)
{
cp = new gsc::CameraProperty;
osg::ref_ptr<osg::Node> node = fc->getInputFileName().empty() ? 0 : osgDB::readNodeFile(fc->getInputFileName());
if (node.valid()) cp->setToModel(node.get());
fc->addUpdateProperty(cp.get());
}
osg::Vec3d vec;
while (arguments.read("--center",vec.x(), vec.y(), vec.z())) { cp->setCenter(vec); }
while (arguments.read("--eye",vec.x(), vec.y(), vec.z())) { cp->setEyePoint(vec); }
while (arguments.read("--up",vec.x(), vec.y(), vec.z())) { cp->setUpVector(vec); }
while (arguments.read("--rotation-center",vec.x(), vec.y(), vec.z())) { cp->setRotationCenter(vec); }
while (arguments.read("--rotation-axis",vec.x(), vec.y(), vec.z())) { cp->setRotationAxis(vec); }
double speed;
while (arguments.read("--rotation-speed",speed)) { cp->setRotationSpeed(speed); }
}
if (arguments.read("--offscreen")) fc->setOffscreen(true);
if (arguments.read("--screen")) fc->setOffscreen(false);
unsigned int width = 1024;
if (arguments.read("-w",width)) fc->setWidth(width);
@@ -196,28 +230,31 @@ int main( int argc, char **argv )
}
if (duration!=0.0)
if (!readCaptureSettings)
{
if (fps!=0.0) nframes = static_cast<unsigned int>(ceil(duration*fps));
else if (nframes!=0) fps = duration/static_cast<double>(nframes);
else
if (duration!=0.0)
{
fps = 60.0;
nframes = static_cast<unsigned int>(ceil(duration/fps));
if (fps!=0.0) nframes = static_cast<unsigned int>(ceil(duration*fps));
else if (nframes!=0) fps = duration/static_cast<double>(nframes);
else
{
fps = 60.0;
nframes = static_cast<unsigned int>(ceil(duration/fps));
}
}
else // duration == 0.0
{
if (fps==0.0) fps=60.0;
if (nframes==0) nframes=1;
duration = static_cast<double>(nframes)/fps;
}
fc->setNumberOfFrames(nframes);
fc->setFrameRate(fps);
OSG_NOTICE<<"Duration="<<duration<<", FPS="<<fps<<", Number of Frames="<<nframes<<std::endl;
}
else // duration == 0.0
{
if (fps==0.0) fps=60.0;
if (nframes==0) nframes=1;
duration = static_cast<double>(nframes)/fps;
}
fc->setNumberOfFrames(nframes);
fc->setFrameRate(fps);
OSG_NOTICE<<"Duration="<<duration<<", FPS="<<fps<<", Number of Frames="<<nframes<<std::endl;