osg读取fbx模型并播放动画（附代码和模型）

 

本文主要介绍通过osg读取fbx 3d模型，并播放模型所带的动画。

所使用到的类为AnimationManagerBase。

下面是完整代码：

 

 

//#include "AnimtkViewer.h"

//#include "AnimtkViewerKeyHandler.h"

#include <Windows.h>

#include <iostream>

#include <osgDB/ReadFile>

#include <osgViewer/ViewerEventHandlers>

#include <osgAnimation/BasicAnimationManager>

 

#include <iostream>

 

struct AnimationManagerFinder : public osg::NodeVisitor

{

osg::ref_ptr<osgAnimation::BasicAnimationManager> _am;

AnimationManagerFinder() : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}

void apply(osg::Node* node) {

if (_am.valid())

return;

if (node->getUpdateCallback()) {

osgAnimation::AnimationManagerBase* b = dynamic_cast<osgAnimation::AnimationManagerBase*>(node->getUpdateCallback());

if (b) {

_am = new osgAnimation::BasicAnimationManager(*b);

return;

}

}

traverse(*node);

}

};

 

 

int main(int argc, char ** argv)

{

osgViewer::Viewer viewer;

 

//读取带动画的节点

osg::Node *animationNode = osgDB::readNodeFile("./Naruto/Naruto.fbx");

//获得节点的动画列表

AnimationManagerFinder  *m_cFinder = new AnimationManagerFinder();

m_cFinder->apply(animationNode);

animationNode->accept(*m_cFinder);

if (m_cFinder->_am.valid())

{

animationNode->setUpdateCallback(m_cFinder->_am.get());

}

osgAnimation::AnimationList::const_iterator it = m_cFinder->_am->getAnimationList().begin();

it++;

it++;

it++;

std::string animationName = (*it)->getName();

osgAnimation::Animation::PlayMode playMode = osgAnimation::Animation::LOOP;

(*it)->setPlayMode(playMode);//设置播放模式

//(*it)->setDuration(5.0);//设置播放时间

//从动画列表中选择一个动画，播放

m_cFinder->_am->playAnimation(*it);

 

viewer.setSceneData(animationNode);

return viewer.run();

}

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最终效果（用手机拍的效果不是很好）：

 

模型下载地址：https://download.youkuaiyun.com/download/github_39611196/11182576

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