3D???????glTF?1?

liefeng603

glTF?Khronos Group?????3D?????????????Mesh???????????????????3D??????????????????????????3D???????????

?/??

?????????????

???????�?? = ?? + ????�????3D??????????????3D???????????????????????????????3D??????????????????????????????3D????????????????????????????????????????????????

??????glTF??

?????Unreal Engine???????????????????????????3D?????????????glTF????????????glTF????????????????????????????????????????

glTF?????

• glTF?GL Transmission Format????
• glTF???3D?????????Khronos Group????Khronos Group????OpenGL???OpenCL?????????
• glTF???????????????????????????API???????????????
• glTF?OpenGL ES?WebGL?????
• glTF?????3D???JPEG?
• ????????2015?10????glTF 1.0???????????????????????????
• glTF???????2.0??2017?6??????
  

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

??????????????????�????�????????Wavefont OBJ?Autodesk FBX??????????????????????????????????????????????????????FBX??COLLADA???????????????????????3D?????Unity3D?Unreal Engine????????import????FBX???????????????????????????3D???????????????????????????????????????

??????????????????????3D???????????????????????3D??????????????????????3DS MAX?Maya?Blender?????????glTF??????????????????

glTF???????

??????????????????????

• glTF????????????SceneGraph?????????????????????Transform????????????????????????????????mesh?camera???
• ??mesh?skin??????????????????????
• ????????????????????????????????????????Skeleton?????????????mesh??????
• ??Morph Target????Blend Shape????????
• ????????glTF 1.0??????technique???????Unity3D??ShaderLab???D3D??effect???
  

glTF????????????????????????????

• ??JSON??????????????????????????????????? JSON ????????? json.org ????
• ????????????Vertex Buffer?Index Buffer????????????OpenGL??WebGL API????????????????????
• ???????shader?????????
  

?????

glTF????
glTF 2.0 ????
glTF 1.0 ????
glTF Tutorial