shader_membrane.h

游戏编程精华02－含有几十个游戏编程例子

/*********************************************************************NVMH2****
Path:  E:\devrel\NV_SDK_4\DX8\NVEffectsBrowser\Effects\Membrane
File:  shader_Membrane.h

Copyright (C) 1999, 2000 NVIDIA Corporation
This file is provided without support, instruction, or implied warranty of any
kind.  NVIDIA makes no guarantee of its fitness for a particular purpose and is
not liable under any circumstances for any damages or loss whatsoever arising
from the use or inability to use this file or items derived from it.

Comments:


******************************************************************************/


#ifndef SHADER_Membrane_H
#define SHADER_Membrane_H
#include "MouseUI.h"
#include <string>

struct MembraneVertex
{
	float x, y, z;
	float nx, ny, nz;
	float u0;         //texcoord for stage 0
	enum FVF
	{
		FVF_Flags = D3DFVF_XYZ | D3DFVF_NORMAL | D3DFVF_TEX1 | D3DFVF_TEXCOORDSIZE1( 0 )
	};
};

typedef enum tageMembraneDisplayOptions
{
	MembraneDisplay_SILHOUETTES = 0,
	MembraneDisplay_SHADING = 1,
	MembraneDisplay_SILHOUETTESANDSHADING = 2
} eMembraneDisplayOptions;



class CShaderMembrane : public EBEffect
{
public:	
	CShaderMembrane();
	~CShaderMembrane();

	virtual void PropertyUpdateCallback(const EBProperty* pProperty, bool bWritten );

	virtual void    UpdateProperties();
	virtual HRESULT Initialize(IDirect3DDevice8* pDev);
	virtual HRESULT Free();
	virtual HRESULT Start();
	virtual HRESULT Tick(EBTimer* pTimer);
	virtual HRESULT ConfirmDevice(D3DCAPS8* pCaps, DWORD dwBehavior, D3DFORMAT Format);
	virtual void MouseMove(HWND hWnd, int x, int y);
	virtual void MouseButton(HWND hWnd, eButtonID Button, bool bDown, int x, int y);
	virtual void Keyboard(DWORD dwKey, UINT nFlags, bool bDown);

	void LoadTexture( LPDIRECT3DTEXTURE8 * ppTex, const EBString & filename );
	
	void SetView();			// sets view matrix
	void SetDefaultView();

		
private:

	LPDIRECT3DVERTEXBUFFER8 m_pVertexBuffer;
	LPDIRECT3DINDEXBUFFER8  m_pIndexBuffer;

	LPDIRECT3DTEXTURE8 m_pShadeTexture;
	LPDIRECT3DTEXTURE8 m_pEdgeTexture;
	
	D3DXATTRIBUTERANGE *m_pAttributes;
	
	//our matrices
	D3DXMATRIX m_world;
	D3DXMATRIX m_view;
	D3DXMATRIX m_proj;
	
	D3DXVECTOR3 m_vEye;
	D3DXVECTOR3 m_vLookAt, m_vUp;
	

	//number of sections in the mesh
	DWORD m_dwNumSections;
	
	DWORD m_dwCurrentShader;

	std::string m_strFileName;

	bool m_bWireframe;
	bool m_bUseTrilinear;
	bool m_bCycleTexture;		// cycle loading of new textures
	bool m_bCycleTexCoords;		// animate tex coord menu controlled variable
	bool m_bAppCycleTexCoords;	// animate tex coord non-menu controlled variable

	float m_tc[4];

	MouseUI* m_pUI;

	eMembraneDisplayOptions m_eDisplayOption;
	
	HRESULT LoadXFile(const char* fileName, const DWORD dwFVF);
	HRESULT SetVertexShaderMatrices();
	HRESULT SetTextureStageStates();
	
	void	SetTCCycle( bool on );

};

#endif