osg动画路径的问题

songbo_1220

我想做条物体移动的过程，但不用osgAnimation,还是用以前的osg::AnimationPath，但是做了个小程序测试，始终不见东西，不知道哪块出问题了，各位同仁能帮忙看下吗？折腾好久了，烦
    osgViewer::Viewer viewer;
    osg::Group* group = new osg::Group;

    osg::AnimationPath* animationPath_test = new osg::AnimationPath;;
    animationPath_test->setLoopMode(osg::AnimationPath:OOP);
    animationPath_test->insert( 0, osg::AnimationPath::ControlPoint(osg::Vec3(0.0, 0.0, 0.0), osg:uat(0.0,0.0,0.0,0.0)) );
    animationPath_test->insert( 2, osg::AnimationPath::ControlPoint(osg::Vec3(2.0, 0.0, 0.0), osg::Quat(0.0,0.0,0.0,0.0)) );
    animationPath_test->insert( 4, osg::AnimationPath::ControlPoint(osg::Vec3(4.0, 0.0, 0.0), osg::Quat(0.0,0.0,0.0,0.0)) );

    osg::ShapeDrawable* shape_test = new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(0.0f, 0.0f, 0.0f), 2));
    shape_test->setColor( osg::Vec4(1.0f, 1.0f, 0.0f, 1.0f) );
    osg::Geode* geode_test = new osg::Geode();
    geode_test->addDrawable( shape_test );

    osg::MatrixTransform* xform_test = new osg::MatrixTransform;
    xform_test->setUpdateCallback( new osg::AnimationPathCallback( animationPath_test ) );
    xform_test->addChild ( geode_test );
    group->addChild ( xform_test );

    viewer.setSceneData( group );
    return viewer.run();

array

animationPath_test->insert( 0, osg::AnimationPath::ControlPoint(osg::Vec3(0.0, 0.0, 0.0), osg:uat(0.0,0.0,0.0,0.0)) );
    animationPath_test->insert( 2, osg::AnimationPath::ControlPoint(osg::Vec3(2.0, 0.0, 0.0), osg::Quat(0.0,0.0,0.0,0.0)) );
    animationPath_test->insert( 4, osg::AnimationPath::ControlPoint(osg::Vec3(4.0, 0.0, 0.0), osg::Quat(0.0,0.0,0.0,0.0)) );

问题在osg:: Quat(0.0,0.0,0.0,0.0)！四元数的默认值是Quat(0,0,0,1)，您这里的设置反而会使得旋转的计算出现问题

songbo_1220

呵呵 果然是这个问题，多谢array了，要不然这个问题又折腾我好久

tianxiao888

mark 下以后注意