3D建模的方法

1.實體建模

這個方法是比較專業的，工程師常用，包含掃掠，立體布爾運算和表面圍成，也就是平面拉伸、旋轉與兩個固體做嵌合、相交、相減都需要邏輯運算與數學計算，所以不是和各位。

2.表面建模

這個方法就比較直接，直接拉進物件做表面外型的縫合與相減動作，我們就是用這種方法。

實體建模包含表面建模，所以當然可以生出表面建模，但反之就不行。

像我們常用的3D建模檔案類型STL和OBJ就是比較簡單的表面建模檔案，不包含動畫、材質特性、貼圖路徑、動力學、粒子等信息 。

底下是3D建模的檔案類型，參考就好

3D graphics

3D graphics are 3D models that allow building models in real-time or non real-time 3D rendering.

3DMF – QuickDraw 3D Metafile (.3dmf)

3DM – OpenNURBS Initiative 3D Model (used by Rhinoceros 3D) (.3dm)

3DS – Legacy 3D Studio Model (.3ds)

AC – AC3D Model (.ac)

AMF – Additive Manufacturing File Format

AN8 – Anim8or Model (.an8)

AOI – Art of Illusion Model (.aoi)

B3D – Blitz3D Model (.b3d)

BLEND – Blender (.blend)

BLOCK – Blender encrypted blend files (.block)

C4D – Cinema 4D (.c4d)

Cal3D – Cal3D (.cal3d)

CCP4 – X-ray crystallography voxels (electron density)

CFL – Compressed File Library (.cfl)

COB – Caligari Object (.cob)

CORE3D – Coreona 3D Coreona 3D Virtual File(.core3d)

CTM – OpenCTM (.ctm)

DAE – COLLADA (.dae)

DFF – RenderWare binary stream, commonly used by Grand Theft Auto III-era games as well as other RenderWare titles

DPM – deepMesh (.dpm)

DTS – Torque Game Engine (.dts)

EGG – Panda3D Engine

FACT – Electric Image (.fac)

FBX – Autodesk FBX (.fbx)

G – BRL-CAD geometry (.g)

GLM – Ghoul Mesh (.glm)

JAS – Cheetah 3D file (.jas)

LWO – Lightwave Object (.lwo)

LWS – Lightwave Scene (.lws)

LXO – Luxology Modo (software) file (.lxo)

MA – Autodesk Maya ASCII File (.ma)

MAX – Autodesk 3D Studio Max file (.max)

MB – Autodesk Maya Binary File (.mb)

MD2 – Quake 2 model format (.md2)

MD3 – Quake 3 model format (.md3)

MDX – Blizzard Entertainment's own model format (.mdx)

MESH – New York University(.m)

MESH – Meshwork Model (.mesh)

MM3D – Misfit Model 3d (.mm3d)

MPO – Multi-Picture Object – This JPEG standard is used for 3d images, as with the Nintendo 3DS

MRC – voxels in cryo-electron microscopy

NIF – Gamebryo NetImmerse File (.nif)

OBJ – Wavefront .obj file (.obj)

OFF – OFF Object file format (.off)

PRC – Adobe PRC (embedded in PDF files)

POV – POV-Ray document (.pov)

RWX – RenderWare Object (.rwx)

SIA – Nevercenter Silo Object (.sia)

SIB – Nevercenter Silo Object (.sib)

SKP – Google Sketchup file (.skp)

SLDASM – SolidWorks Assembly Document (.sldasm)

SLDPRT – SolidWorks Part Document (.sldprt)

SMD – Valve Studiomdl Data format. (.smd)

U3D – Universal 3D file format (.u3d)

VRML97 - VRML Virtual reality modeling language (.wrl)

VUE – Vue scene file (.vue)

WINGS – Wings3D (.wings)

X – DirectX 3D Model (.x)

X3D – Extensible 3D (.x3d)

Z3D – Zmodeler (.z3d)

http://www.programmer-club.com.tw/ShowSameTitleN/gameprogram/5825.html