Ogre3D 1.7版本 SampleBrowser 分析

01

virtual

void

go(Sample* initialSample = 0)

02

{

03

04

while

(!mLastRun)

05

{

06

mLastRun =

true

;

// assume this is our last run

07

08

createRoot();

09

if

(!oneTimeConfig())

return

;

10

11

// if the context was reconfigured, set requested renderer

12

if

(!mFirstRun) mRoot->setRenderSystem(mRoot->getRenderSystemByName(mNextRenderer));

13

14

setup();

15

16

// restore the last sample if there was one or, if not, start initial sample

17

if

(!mFirstRun) recoverLastSample();

18

else

if

(initialSample) runSample(initialSample);

19

20

mRoot->startRendering();

// start the render loop

21

22

mRoot->saveConfig();

23

shutdown();

24

if

(mRoot) OGRE_DELETE mRoot;

25

26

mFirstRun =

false

;

27

}

28

29

}

1

virtual

void

createRoot()

2

{

3

Ogre::String pluginsPath = Ogre::StringUtil::BLANK;

4

mRoot = OGRE_NEW Ogre::Root(pluginsPath, mFSLayer->getWritablePath(

"ogre.cfg"

),

5

mFSLayer->getWritablePath(

"ogre.log"

));

6

}

01

/*-----------------------------------------------------------------------------

02

| Sets up the context after configuration.

03

-----------------------------------------------------------------------------*/

04

virtual

void

setup()

05

{

06

createWindow();

//创建渲染窗口

07

setupInput();

//设置输入系统

08

locateResources();

//定位本地资源

09

loadResources();

//载入资源

10

11

Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5);

12

13

// adds context as listener to process context-level (above the sample level) events

14

mRoot->addFrameListener(

this

);

//增加Frame监听

15

Ogre::WindowEventUtilities::addWindowEventListener(mWindow,

this

);

//增加窗口事件监听

16

}

01

/*-----------------------------------------------------------------------------

02

| Extends setup to create dummy scene and tray interface.

03

-----------------------------------------------------------------------------*/

04

virtual

void

setup()

05

{

06

07

createWindow();

08

setupInput();

09

locateResources();

10

11

Ogre::ResourceGroupManager::getSingleton().initialiseResourceGroup(

"Essential"

);

12

13

mTrayMgr =

new

SdkTrayManager(

"BrowserControls"

, mWindow, mMouse,

this

);

14

mTrayMgr->showBackdrop(

"SdkTrays/Bands"

);

15

mTrayMgr->getTrayContainer(TL_NONE)->hide();

16

17

createDummyScene();

18

loadResources();

19

Sample* startupSample = loadSamples();

20

21

Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5);

22

23

// adds context as listener to process context-level (above the sample level) events

24

mRoot->addFrameListener(

this

);

25

Ogre::WindowEventUtilities::addWindowEventListener(mWindow,

this

);

26

27

// create template material for sample thumbnails

28

Ogre::MaterialPtr thumbMat = Ogre::MaterialManager::getSingleton().create(

"SampleThumbnail"

,

"Essential"

);

29

thumbMat->getTechnique(0)->getPass(0)->createTextureUnitState();

30

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setupWidgets();

32

windowResized(mWindow);

// adjust menus for resolution

33

// if this is our first time running, and there's a startup sample, run it

34

if

(startupSample && mFirstRun) runSample(startupSample);

35

}