C++博客-YuanCheng's Blog-文章分类-Computer

Ogre鼠标拣选物体

YuanCheng — Tue, 18 Dec 2007 14:06:00 GMT

void MoveMesh(const oVector2 &vec2Cursor)
{

   Vector3 vec3MouseCursor = Vector3::ZERO ;

   Ray mouseRay = g_pCamera->getCameraToViewportRay(vec2Cursor.x, vec2Cursor.y) ;
   Plane plGround = Plane(oVector3(0, 1, 0), _R(0)) ;

   std::pair<bool, Real> intersection_distance = mouseRay.intersects(plGround) ;

   Real fLength = 0 ;

   if(intersection_distance.first)
   {
      fLength = intersection_distance.second ;
   }

   vec3MouseCursor = mouseRay * fLength ;

   m_pMeshNode->setPosition(vec3MouseCursor) ;

}

YuanCheng 2007-12-18 22:06 发表评论

Ogre中使用StaticGeometry

YuanCheng — Wed, 12 Dec 2007 12:47:00 GMT

    Ogre::Entity* ent=this->sceneMgr->createEntity("wall_ent","box_1_1.mesh");
    ent->setMaterialName("Examples/MazeWallTexture");

    Ogre::StaticGeometry* sg=this->sceneMgr->createStaticGeometry("Walls");
    for(int i=0;i<length;i++)
    {
        for(int j=0;j<length;j++)
        {
            if(mMazeData[i][j]==1)
            {
                Ogre::Vector3 pos=PhKit::getSingletonPtr()->NxToOgreVec(this->GetCoordinate(i,j));
                sg->addEntity(ent,pos,Ogre::Quaternion::IDENTITY,this->WallSize);

                NxActor* actor=PhKit::getSingletonPtr()->CreateStaticBoxActor((NxVec3(WallSize.x/2,WallSize.y/2,WallSize.z/2)),NULL);
                actor->setGlobalPosition(NxVec3(pos.x,pos.y,pos.z));
            }
        }
    }
    sg->build();

YuanCheng 2007-12-12 20:47 发表评论

联系Ogre和Physx的方法

YuanCheng — Tue, 11 Dec 2007 11:50:00 GMT

整合Ogre和Physx方法：

(1)：将Physx的NxActor的userData指针指向Ogre的SceneNode:

frameStarted():

NxScene* PhScene;

PhScene->simulate(elapsedTime);
        PhScene->flushStream();
        PhScene->fetchResults(NX_RIGID_BODY_FINISHED,false);


        NxU32 nb=PhScene->getNbActors();
        NxActor** actors=PhScene->getActors();

        while(nb--)
        {

            NxActor* actor=*actors++;

            if(!actor->isDynamic()) continue;
            if(actor->isSleeping()) continue;
            if(!actor->userData) continue;

            Ogre::SceneNode * node=(Ogre::SceneNode*)actor->userData;


            NxMat34 nm=actor->getGlobalPose();
            NxVec3 pos(nm.t);
            NxQuat quat(nm.M);
            node->setPosition(pos.x,pos.y,pos.z);
            node->setOrientation(quat.w,quat.x,quat.y,quat.z);



        }

(2):建立一个SceneNode和NxActor的对应表
//code.....

YuanCheng 2007-12-11 19:50 发表评论

Ogre、Cegui 中事件处理预定方法

YuanCheng — Tue, 11 Dec 2007 11:35:00 GMT

class DemoApp

{

void initCEGUI(void);
bool GuiQuitHandle(const CEGUI::EventArgs& args);
}

void DemoApp::initCEGUI(void)
{
CEGUI::Window* rootWindow=CEGUI::WindowManager::getSingleton().createWindow("DefaultWindow","Root_Window");
    this->mGUISystem->setGUISheet(rootWindow);


    CEGUI::Window* MultiColumnList=CEGUI::WindowManager::getSingleton().loadWindowLayout("ogregui.layout");
    rootWindow->addChildWindow(MultiColumnList);

    CEGUI::PushButton* quitBtn=(CEGUI::PushButton*)CEGUI::WindowManager::getSingleton().getWindow("OgreGuiDemo/TabCtrl/Page1/QuitButton");
    quitBtn->subscribeEvent(CEGUI::PushButton::EventClicked,CEGUI::Event::Subscriber(&DemoApp::GuiQuitHandle,this) );

}

bool DemoApp::GuiQuitHandle(const CEGUI::EventArgs& args)
{
// do something
}

YuanCheng 2007-12-11 19:35 发表评论