3D???????3DS Max?????????

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??3D API (3D??????)
??Application Programming Interface(API)??????,??????????3D API??????????3D???????API????????API???????????????3D??????3D????????????????3D?????????????3D???????????3D API????????3D API?DirectX?OpenGL?Glide?Heidi??




??Direct 3D
???????1996??PC???API??Windows 95 ?Windows NT?Power Mac???????????????????GDI????????API????????????????????????????????????????????????????DirectX????????????????????,???3DS MAX?????????????????????????????

??OpenGL (???????)
????SGI?????IRIS GL???????3D?????????????????????????????????????????/???????????????Direct 3D??????3D??????????3D API????????????????3D???????????3Dfx???VOODOO??3D??????????3D?????????????????????????????3D??????OpenGL??????????3DS MAX?????????????Direct 3D????

??Heidi
?????Quick Draw 3D???Autodesk???????????????????????????????????????????????????????????Heidi?????????3D Studio MAX???????Auto CAD?3D Studio VIZ????Autodesk???????????WHIP????????????????????

??Glide
????3dfx?????Voodoo?????3D API??????PC????????????????????????????????D3D?OpenGL????????????????

??PowerSGL
???NEC??PowerVR????????????

??3D??: Alpha Blending (???)
???????????3D?????????????????3D????????????????????3D?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

??Fog Effect (????)
???????3D???????????????????????????????????????????????????????????????????????????????????????3D?????????

??Attenuation (??)
?????????????????????????????????????????????3D Studio MAX?????????�??�??????????????????????????????????????????????????????????????

??Perspective Correction (???????)
??????????????????????????????????????????????

??Anti?aliasing (?????)
?????????????????????�??�??????????????????????????????????????????????3D????????????

??Adaptive Degradation (??????)
??????????????????????????????????????????????????????????????????????????3D Studio MAX???Adaptive Degradation?????????????????????????????????????2-3??????????????

??Z-Buffer (Z??)
??Z-buffering?????????????�?????�????????????????????????????



???3D????????????????????????????????Z??????Z Buffer????????????????????????????????3D?????????16??Z Buffer?????????????????32??Z Buffer????????????????3D???????????????????????????,3D Studio MAX????64??Z-buffer?

??W-Buffer (W??)
???Z-buffer??????????????????????????????????

??G-Buffer (G??)
??G?buffering????Video Post???????????????????????????????????????ID???ID???????????

??A-Buffer (A??)
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

??T-Buffer (T??)
???3DFX?????????A??????????????????????????????????????????

??Double Buffering (???????)
?????????OpenGl?3D??????????????????????????????�????�?�????�?????�????�???????????????????????�????�?????????????????�????�??????????????�????�?????????????????????????????????????????????

??IK (????)
??Inverse kinematics(IK)?????????????????????????????????????????????

??Kinematic Chain (??????)
??Kinematic Chain??????????????????????????????????????

??NURBS
??Non-Uniform Rational B-Splines?NURBS???????3D????&???????NURBS???3D????????

??Mapping(????):

??Texture Mapping (????)
??????????????????????????????????????????????????????????????????????????????????????????????????????????

??Mip Mapping (Mip??) ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????LOD(????)??????????????????????????????????

??Bump Mapping (????)
???????3D?????????????????????????????????3D????????????????????????????????????????????????GeForce256?????????????????????

??Video Texture Mapping ( ??????)
????????????????


????????????????????????????????????????????????AVI?MPEG?????????????????3D????????

??Texture Map Interpolation (????????)
????????????????3D??????????????????????????????????2D???????3D????????????????????????????????????????????????????????????????????�????�?�????�?�????�??�??????�?
??1.Nearest Neighbor (????)
??????Point sampling(???)??????????????????????????????????????????????????????????????????????????????????????3D???????????????
??2.Bilinear Interpolation (????)
??????????????????????????????????????????????????????????????????????????�???�????????????????????????????????????????????????????????????Depth Aliasing artifacts(??????)?????????????

??3.Trilinear Interpolation (????)
?????????????????????????????????????????????????????????????512×512??????????256×256??????????128×128??????????????1×1??????????????????????????????????????????????????�????�????????�????�?????????????????????21/3??????????????????????????�????�??????????????????�??�????????????????????????????�????�?????????????
??4.Anisotropic Interpolation (??????)
???????????8???????????????????????

??2-sided (??) ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

??Material ID (?????)
???????????????????????????????????????????????????????????????????

??Shading(????):

???????3D????????polygon???????????????????????????????wire frame???????????????????,??????Flat Shading?Gouraud Shading ?Phone Shading?Scanline Renderer?Ray-Traced ?

??Flat Shading (????)
?????�????�???????????????????????????????????????????????????????????????????????????????????????,?????????
?Gouraud Shading (?????/????)
?????????????????????????????????


???3D?????????????????????????????????????????????????????????????????????????????????????????

??Phone Shading (????)
?????????????????????????????????????????????????????????????????????????????????????????????????????????????

??Scanline Renderer (?????)
????3DS MAX?????????????????????????????????????????????????

??Ray-Traced (??????)
??????????????????????????????????????????????????????????????????????????????CG?????????

??Radiosity (????)
???????????????????????????????????????????????????????????????????????????????????????????????????????????

??Voxels (????)
?????????????????????????????X?Y?????????????????????????????Z????????????????????????????????????????????????????????????????????????????????????

??Polygon (???)
??Polygon?????????????????????????????????Vertices(??)?????????????????????????????????????????

??Alpha Channel (Alpha??)
???24????????????8??Alpha?????????????

??Dithering (????)
???????????????????????????????????????????????????????????????????????????????

??MMX???
??MMX????????SIMD??????(?????????)??Intel????????CPU???2-4???8?????????????????CPU???????????????????3D??????????MMX????CPU????????????????MMX??????3D????????
3D Now!???
??3D Now!???3D???????AMD??????????SIMD????????????????CPU????????????????????4??????????MMX???

??SSE???
??SSE?Streaming SIMD Extension??????KNI??????????Intel Pentium III??????????????????MMX???????SSE????????CPU?3D??????????70????50?SIMD?????????3D???12??MMX???8???????????????

??AGP
??AGP?Accelerated Graphics Port(??????)?????Intel??????????????????????????????????????????AGP???1x?2x?4x?????AGP1x???66MHz?2x???133MHz?4x???266MHz?

??GPU (?????)
??n VIDIA?????3D????GeForce 256???????????????????????????????????????????1000?????????????????

??????
??1.FPM DRAM(??RAM)
??FPM?Fast Page Mode RAM?????????????????5%?EDO DRAM????



??2.EDO DRAM(??????DRAM)
??EDO DRAM?Extended Data Out DRAM?????DRAM????????????????????????
??3.VRAM(??RAM)
??VRAM?Video RAM???????????????????????(????RAMDAC??CPU??????)????????????????????????
??4.WRAM(???VRRAM)
??WRAM?Windows RAM????????VRAM??20%?????????????????????
??5.SDRAM(??DRAM)
??SDRAM?Synchronous DRAM?????????????????????????DRAM????????????????????????????
??6.SGRAM(????RAM)
??SGRAM?Synchronous Graphics DRAM?????????????????????????-??-?????SGRAM????????????????????
??7.MDRAM(??DRAM)
??MDRAM?Multibank RAM????????????????????????????????????????????????
??8.RDRAM
??????????????????????500MHz??????????50MHz?75MHz?????RDRAM?16Bit????1.6Gbps(EDO??????533Mbps)?32Bit??????4Gbps?

??IGES (?????????)
??The Initial Graphics Exchange Specification(IGES)??????Computer-Aided Design (CAD)&Computer-Aided Manufacturing (CAM) systems (??????&????????)???????????ANSI???????3D Studio MAX??????IGES???????????????????????????IGES??????????????????NURBS??????Maya?Pro/ENGINEER, SOFTIMAGE, CATIA???????????????????5.3???IGES???

??NTSC (???????????)
??National Television Standards Committee(NTSC),?????????????????????????????????30/S?60????????????????

??PAL (??????)
??Phase Alternating Line(PAL)??????????????????????????????????25/S?50????????????????