www.pudn.com > 3DmaxSLoader.rar > glStructures.h

////////////////////////////////////////////////////////////////////// 
// 
//	C3dsReader, CTriObject 和 CTriList 类的数据结构的定义. 
// 
////////////////////////////////////////////////////////////////////// 
 
#ifndef GLSTRUCTURES_H 
#define GLSTRUCTURES_H 
 
const long SizeofChunk = sizeof(unsigned short)+sizeof(long); 
 
//PI的宏定义 
#define M_PI        3.141592653589 
#define M_2PI       6.283185307178 
 
// 定义块的结构 
typedef struct { 
    unsigned short		id; 
    long				len; 
} Chunk3DS; 
 
// 定义块的标识 
const unsigned short	M3DMAGIC			= 0x4d4d;//基本块 
const unsigned short	CMAGIC				= 0xc23d;// 
const unsigned short	M3D_VERSION			= 0x0002;//版本号 
const unsigned short	MDATA				= 0x3d3d;//编辑程序块 
const unsigned short	MESH_VERSION		= 0x3d3e;//编辑程序配置主块 
const unsigned short	MAT_ENTRY			= 0xafff;//材质列表开始 
const unsigned short	MASTER_SCALE		= 0x0100;// 
const unsigned short	NAMED_OBJECT		= 0x4000;//物体描述块 
const unsigned short	MAT_NAME			= 0xa000;//材质名称 
const unsigned short	MAT_AMBIENT			= 0xa010; 
const unsigned short	MAT_DIFFUSE			= 0xa020;//满射色。父chunk：0xafff子chunk：0x0011、0x0012 
//长度：头长度+子chunk长度内容：无 
 
const unsigned short	MAT_SPECULAR		= 0xa030; 
const unsigned short	MAT_SHININESS		= 0xa040; 
const unsigned short	MAT_TRANSPARENCY	= 0xa050; 
const unsigned short	MAT_SHADING			= 0xa100; 
const unsigned short	N_TRI_OBJECT		= 0x4100;//三角形列表 
const unsigned short	POINT_ARRAY			= 0x4110;//定点列表 
const unsigned short	FACE_ARRAY			= 0x4120;//面列表 
const unsigned short	MSH_MAT_GROUP		= 0x4130;//面材质 
const unsigned short	SMOOTH_GROUP		= 0x4150;//面光滑组 
const unsigned short	MESH_MATRIX			= 0x4160;//平移矩阵 
const unsigned short	COLOR_24			= 0x0011;//字节格式的颜色a 
const unsigned short	LIN_COLOR_24		= 0x0012;//字节格式的gamma矫正a 
const unsigned short	COLOR_F				= 0x0010;//浮点数格式的颜色a 
const unsigned short	INT_PERCENTAGE		= 0x0030;//字格式的百分比a 
const unsigned short	FLOAT_PERCENTAGE	= 0x0031;//浮点数格式的百分比a 
const unsigned short	N_DIRECT_LIGHT		= 0x4600;//光源块 
const unsigned short	N_CAMERA			= 0x4700;//相机块 
const unsigned short	KFDATA				= 0xb000;//关键帧主chunk，包含所有的关键帧信息 
const unsigned short	KFHDR				= 0xb00a;//未知 
const unsigned short	KFSEG				= 0xb008;//关键帧的起点和终点 
//父chunk：0xB000起始帧（一个双字）结尾帧（一个双字） 
 
const unsigned short	OBJECT_NODE_TAG		= 0xb002;//物体信息开始块 
const unsigned short	NODE_ID				= 0xb030;//关键帧的索引 
const unsigned short	NODE_HDR			= 0xb010;//名称与层次结构描述 
const unsigned short	PIVOT				= 0xb013;//支点坐标 
const unsigned short	POS_TRACK_TAG		= 0xb020;//物体中心点 
const unsigned short	ROT_TRACK_TAG		= 0xb021;//转动的关键帧信息 
const unsigned short	SCL_TRACK_TAG		= 0xb022;//缩放的关键帧信息 
 
#define W_TENS  1 
#define W_CONT  (1<<1) 
#define W_BIAS  (1<<2) 
#define W_EASETO  (1<<3) 
#define W_EASEFROM  (1<<4) 
 
// 材料的数据结构 
struct tMaterial { 
	float		ambientColor[3]; 
	float		diffuseColor[3]; 
	float		specularColor[3]; 
	float		emissiveColor[3]; 
	float		shininess; 
	float		transparency; 
}; 
 
// 定义材料符号表 
const int MaxMaterialDictEntries = 256; 
 
class MaterialDict { 
private: 
	char*			m_name[MaxMaterialDictEntries]; 
	long			m_count; 
	tMaterial		m_material[MaxMaterialDictEntries]; 
public: 
	void Clear(void)  
	{ 
		for (int i = 0; i < m_count; i++) { 
			if (m_name[i] != NULL) { 
				delete [] m_name[i]; 
			} 
		} 
		m_count = 0; 
	} 
 
	MaterialDict(void) 
	{ 
		m_count = 0; 
		for (int i = 0; i < MaxMaterialDictEntries; i++) { 
			m_name[i] = NULL; 
		} 
	} 
 
	~MaterialDict(void)  
	{ 
		Clear();	 
	} 
 
	tMaterial* Lookup(char* name)  
	{ 
		for (long i = 0; i < m_count; i++) { 
			if (strcmp(name, m_name[i]) == 0) { 
				return &m_material[i]; 
			} 
		} 
		return NULL; 
	} 
 
	void Add(char* name, tMaterial& material) 
	{ 
		if (Lookup(name) == NULL) { 
			m_name[m_count] = new char[strlen(name)+1]; 
			strcpy(m_name[m_count], name); 
			m_material[m_count++] = material; 
		} 
	} 
 
	tMaterial* operator[](int index) 
	{ 
		if (index >= 0 && index < m_count) { 
			return &m_material[index]; 
		} 
		return NULL; 
	} 
 
}; 
 
 
struct tVector		//位置矢量 
{ 
	float x,y,z; 
}; 
 
struct tVectorRGBA	//RGBA颜色 
{ 
	float r,g,b,a; 
}; 
 
struct tQuaternion	//四元数 
{ 
	float x,y,z,a; 
}; 
 
struct Key		//帧结构 
{ 
	float tension; 
	float continuity; 
	float bias; 
	float easeto; 
	float easefrom; 
	long  time; 
}; 
 
struct Poskey		//Poskey 
{ 
	float tension; 
	float continuity; 
	float bias; 
	float easeto; 
	float easefrom; 
	long  time; 
	float pos[3]; 
}; 
 
struct Rotkey		//Rotkey 
{ 
	float tension; 
	float continuity; 
	float bias; 
	float easeto; 
	float easefrom; 
	long  time; 
	float angle; 
	float axis[3]; 
}; 
 
 
#endif