How to export obj by dp modeling

At present, the tilt models produced in the market, especially the 3D model data of tilt photography processed by Smart3D, are generally organized in binary storage OSGB format, with embedded linked texture data. jpg)。 Open scene Gragh Binary is the full name of OSGB, where Binary means binary.

This kind of data files are fragmented, huge in number and huge in high-level pyramid files, so it is difficult to form an efficient and standardized network publishing scheme, and thus it is impossible to share data between different regions and departments.

2. Target document

OBJ file is a standard 3D model file format developed by Alias|Wavefront Company for its workstation-based 3D modeling and animation software "AdvancedVisualizer", which is very suitable for mutual guidance among 3D software models and can also be read and written by Maya. For example, the model generated in Smart3D needs to be decorated, and it can be output in OBJ format, and then imported into 3dsMax for processing; Or build a model in 3dsMax and want to transfer it to Maya for rendering or animation. Exporting an OBJ file is a good choice.

An OBJ file usually includes three subfiles, namely. obj，。 Mtl and. jpg。 In addition to the model file, you need a. jpg texture file.

At present, almost all well-known 3D software supports reading and writing OBJ files, but many of them need plug-ins. In addition, the OBJ file is also a text file, which can be directly opened with WordPad for viewing, editing and modification.

3.FBX

FBX is the format used by FilmBoX, which was later renamed Motionbuilder. Because Motionbuilder is a platform for motion production, the biggest use of FBX is to guide the model, material, motion and camera information among 3dsMax, Maya, softimage and other software, so that the advantages of Max, Maya and other software can be brought into play.

4. Standard template library

STL file format (abbreviation of stereolithography) is an interface protocol formulated by 3D SYSTEMS in 1988, which is a 3D graphic file format serving rapid prototyping manufacturing technology.

STL file is a file format used to represent triangular mesh in computer graphics application system. Its file format is very simple and widely used. STL is the standard file type used by most rapid prototyping systems.

The format is simple, which can only describe the geometric information of three-dimensional objects, but does not support information such as color and material. It is the most common file format supported by computer graphics processing CG, CAD and other digital geometry processing, 3D printer and other digital geometry industrial applications.

5.3DS

3DS is a derivative file format of 3DSMAX modeling software. Max's scene file can be exported to 3ds format, which is compatible with other modeling software and can also be used for rendering.

The advantage is that you don't have to stick to the software version. For example, if a 3D MAX file is made using 3D MAX20 15, the file cannot be opened in 3D MAX20 14 and earlier versions. If you want to open it with a lower version of the file, you can only choose to save it as a 3DS file, so that even 3D MAX08 versions 08 and 09 can be opened.