bool CameraMath::isInFOV( osg::Vec3d point, osg::ref_ptr<osg::Camera> camera )
{
double left, right, bottom, top, zNear, zFar;
camera->getProjectionMatrixAsFrustum( left, right, bottom, top, zNear, zFar );
osg::Matrixd& mv = camera->getViewMatrix();
osg::Matrixd& mp = camera->getProjectionMatrix();
osg::Vec3d pView = point * mv * mp;
if ( pView.z() < 0.0 ) {
return false;
}
return true;
}
