M2文件头

M2文件中的信息大体是这样的

全局纹理列表

全局顶点列表

• Position
• Blend weights
• Blend indices
• Normal
• Texture coordinates

LOD (每个模型共4级?)

• Vertex indices (这级LOD用到的顶点 为全局顶点列表的索引)
• Face indices (每个三角形有三个, 同样是全局顶点列表中的索引)
• Vertex properties (每个顶点索引有一个, 未知)
• Submeshes (一般每种材质一个)
• Texture units (引用Subemesh, 全局纹理列表的索引, 绑定纹理单元的数目)

全局包围体 (用来碰撞检测?)

动画(Animations, global sequences)

骨骼(Skeleton)

额外的渲染信息: 颜色, 透明度, 纹理动画, 模型混合等.

特效: 条带, 粒子

灯光

摄像机

 struct ModelHeader {char id[4];//"MD20" uint8 version[4];uint32 nameLength;//model name length (including /0)uint32 nameOfs;//model name offset uint32 type;//Model type? always 0, 1 or 3 (mostly 0) uint32 nGlobalSequences;//number of global sequences uint32 ofsGlobalSequences;//offset to global sequences uint32 nAnimations;//number of animation sequences uint32 ofsAnimations;//offset to animation sequences uint32 nC;uint32 ofsC;uint32 nD;//always 201 or 203 depending on WoW client version uint32 ofsD;uint32 nBones;//number of bones uint32 ofsBones;//offset to bones uint32 nF;//bone lookup table uint32 ofsF;uint32 nVertices;//number of vertices uint32 ofsVertices;//offset to vertices uint32 nViews;//number of views (LOD versions?) 4 for every model uint32 ofsViews;//offset to views uint32 nColors;//number of color definitions uint32 ofsColors;//offset to color definitions uint32 nTextures;//number of textures uint32 ofsTextures;//offset to texture definitions uint32 nTransparency;//number of transparency definitions uint32 ofsTransparency;//offset to transparency definitions uint32 nI;// always unused ?uint32 ofsI;uint32 nTexAnims;//number of texture animations uint32 ofsTexAnims;//offset to texture animations uint32 nTexReplace;uint32 ofsTexReplace;uint32 nTexFlags;//number of blending mode definitions uint32 ofsTexFlags;//offset to blending mode definitions uint32 nY;//bone lookup table uint32 ofsY;uint32 nTexLookup;//number of texture lookup table entries uint32 ofsTexLookup;//offset to texture lookup table uint32 nTexUnitLookup;//texture unit definitions? uint32 ofsTexUnitLookup;uint32 nTransparencyLookup; //number of transparency lookup table entries uint32 ofsTransparencyLookup;//offset to transparency lookup table uint32 nTexAnimLookup;//number of texture animation lookup table entries uint32 ofsTexAnimLookup;float floats[14];uint32 nBoundingTriangles;uint32 ofsBoundingTriangles;uint32 nBoundingVertices;uint32 ofsBoundingVertices;uint32 nBoundingNormals;uint32 ofsBoundingNormals;uint32 nAttachments;uint32 ofsAttachments;uint32 nAttachLookup;uint32 ofsAttachLookup;uint32 nQ;uint32 ofsQ;uint32 nLights;//number of lights uint32 ofsLights;//offset to lights uint32 nCameras;//number of cameras uint32 ofsCameras;//offset to cameras uint32 nT;uint32 ofsT;uint32 nRibbonEmitters;//number of ribbon emitters uint32 ofsRibbonEmitters;//offset to ribbon emitters uint32 nParticleEmitters;//number of particle emitters uint32 ofsParticleEmitters;//offset to particle emitters };

这把刀看起来挺漂亮, 就拿它开刀了:

16进制文件分析: