实时3D地形引擎——Chapter6_01——初读

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Three.js 浅尝：基础3D渲染（二）从基础的 WebGL 渲染示例着手，简单介绍了 Three.js 如何执行渲染任务。本篇博客内容涵盖 Three.js 中与渲染相关的几个重要的类。阅读详情

坑已经开几天了，就从今天开始吧。书的第六章只有一个例子，而且不长，但实际上这个例子用到的框架也需要阅读，所以估计也要看很久。

class cMyHost:public cGameHost
{
public:
	cMyHost(){};
	~cMyHost(){};

	HRESULT InitDeviceObjects();
	HRESULT RestoreDeviceObjects();
	HRESULT InvalidateDeviceObjects();
	HRESULT DeleteDeviceObjects();
	HRESULT updateScene();
	HRESULT renderScene();
	HRESULT OneTimeSceneInit(); 

    LRESULT MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );

	cTerrain m_terrainSystem;
	cTexture* m_pHeightMap;

	cRenderMethod* m_pRenderMethod;
	cSurfaceMaterial* m_pSurfaceMaterial;

};

以上就是这章用到的类，可以看到该类继承了cGameHost，所以接下来看看cGameHost类。

class cGameHost : public CD3DApplication, public cSingleton<cGameHost>
{
public:

	// Creators...
    cGameHost();
    ~cGameHost();

	// Mutators...
	const cSystemInfo& systemInfo()const;
	cResourcePoolManager& resourceManager();
	cDisplayManager& displayManager();
	cLightManager& lightManager();

	void setupWorldQuadTree(const cRect3d& worldExtents);

    const D3DPRESENT_PARAMETERS& presentParams()const;  // Parameters for CreateDevice/Reset
    HWND  appWindow()const;            // The main app window
    HWND  focusWindow()const;          // The D3D focus window (usually same as m_hWnd)
    LPDIRECT3D9 d3dInterface()const;
    LPDIRECT3DDEVICE9 d3dDevice()const;   // The D3D rendering device
    const D3DCAPS9& d3dCaps()const;    // Caps for the device
    const D3DSURFACE_DESC& d3dsdBackBuffer()const; // Surface desc of the backbuffer
    const RECT& rcWindowClient()const; // Saved client area size for mode switches
    const TCHAR* windowTitle()const;
    bool hardwareVertexShadersAllowed()const;
    void setActiveCamera(cCamera* pCamera);
    void beginRenderStage(uint8 stage);
    void en