What is an OBJ file used for?
An OBJ file (. obj) contains information about the geometry of 3D objects. The files are used for exchanging information, CAD, and 3D printing. OBJ files can support unlimited colors, and one file can define multiple objects.
What program opens OBJ files?
Programs that open or reference OBJ filesMicrosoft 3D Builder.Microsoft Paint 3D.NewTek Lightwave 3D.Autodesk Maya 2023.Autodesk 3ds Max 2023.DAZ 3D DAZ Studio 4.Blender.MeshLab.More items...•
Can windows open OBJ files?
OBJ file (a 3D image file) in Windows or macOS. Windows comes an app that supports . OBJ, but if you're a Mac user, you'll need to download a viewer like MeshLab.
Is OBJ a CAD file?
An OBJ file is usually generated by CAD (Computer Aided Design) software as an end product of the 3D modeling process. The file extension corresponding to the OBJ file format is simply “. OBJ”.
How do I view 3D objects?
Online 3D Viewer is another great viewer that made the list. ... Sketchfab is a website for publishing, sharing and discovering 3D and VR content. ... It allows you to easily display 3D models on the web and view them on any browser, mobile, desktop, or a Virtual Reality headset.More items...•
Can SketchUp open .OBJ files?
Yes, SketchUp can open OBJ files. OBJ files are 3D models that can be used by many different programs, including SketchUp, AutoCAD, and Maya.
What is the difference between STL and OBJ?
STL files store objects as sets of vertices joined by edges to make triangular faces. OBJ files store 3D information as a list of vertices joined by edges, and unlike STLs, they support polygonal faces that allow for a closer representation of the original geometry.
What is a .OBJ file C++?
C++ Object File (*. obj, *.o) Go Up to File Types Index. A C++ object file is an intermediate file produced by a C++ compiler from a C++ implementation file and the C++ header files that the implementation file includes. The C++ linker produces the output executable or library of your project from your C++ object files ...
How do I open an OBJ file in AutoCAD?
Right now, AutoCAD cannot read an . obj file directly. Please use Autodesk 3DS Max to create the . dwg file from the OBJ file.
Does AutoCAD accept OBJ files?
AutoCAD does not support importing of OBJ format files by default - see CAD formats - and you will need additional software to convert OBJ-> DWG .
How do I convert OBJ to DWG?
How do I convert multiple OBJ files to DWG?Download and Install reaConverter. ... Load OBJ Files. ... Choose Output Folder. ... Select DWG as Output Format. ... Video tutorial. ... Command-line interface.
How do I edit OBJ files?
Another Microsoft app that you can try to edit OBJ files is 3D Builder. Like Paint 3D, it is also a native 3D modeling app in Windows 10. Windows 11 users can download and install this free app from Microsoft Store. You can simply open an OBJ model and then modify it using several 3D modeling tools.
What is an OBJ File?
OBJ files are used by Wavefront’s Advanced Visualizer application to define and store the geometric objects. Backward and forward transmission of geometric data is made possible through OBJ files. Both polygonal geometry like points, lines, texture vertices, faces and free-form geometry (curves and surfaces) are supported by OBJ format.
History
Wavefront Technologies created OBJ file format for its Advanced Visualizer application to store geometric objects and 3D data. Its version 2.11 is superseded by a newly documented version 3. The file format is open and has been implemented by other vendors for their 3D graphics application.
OBJ File Format
In 3D objects, encoding the surface geometry is a challenging job that OBJ file format accomplished very well. This format is quite versatile as it offers a number of choices to encode surface geometry. Following are three allowed formats having their own benefits and shortcomings:
What is an obj file?
OBJ is a vector file, which makes the defined objects scalable. There’s no maximum file size.
Why are OBJ files used?
Because one of the primary uses of OBJ files is 3D printing, understanding how 3D files become 3D objects is key. At a high level, this is what happens:
What program to open an obj file?
You need a CAD or 3D graphics/modeling program to view, open, or edit an OBJ file using Windows, Mac, or Linux. Here’s a comprehensive list of software you can use to work with OBJ files.
When was OBJ created?
The format was created in the 1980s by Wavefront Technologies for its Advanced Visualizer animation software (Autodesk Maya has since replaced Advanced Visualizer). The file extension OBJ comes from the name Wavefront OBJect (the full name is rarely used). Other companies have adopted the OBJ format for use in their applications.
Can obj files be referenced?
OBJ files can reference vertices, normal, etc. by either absolute position or by relative position. Not all software supports both methods, so take care when opening files to ensure they are compatible with the software you’re using.
Is OBJ a large user base?
OBJ has a large user base and support system, so if that is important to you, consider using OBJ.
Can you edit an OBJ file by hand?
Technically, since the OBJ format is simple (the data is uncompressed, and is in ASCII), you could conceivably edit a file by hand (but this doesn’t happen often).
What is an OBJ file?
An OBJ file, or .obj file, is a very common type of 3D file. It is often used as an exchange format by many software programs as an alternative to STL files (.stl files) when information about colours or materials is desirable.
Why are OBJ files used?
Often used as an alternative to STL files, OBJ files differ: Because they allow colours, textures and materials (including texture coordinates) to be encoded; Because they can process non-triangular faces (quadrilaterals, etc.), along with the challenge that these faces must remain flat;
How to open 3D files?
Opening a 3D file can be done using file conversion software. Blender is one possible solution. More simply, you can also send the OBJ file to the Sculpteo platform , which imports these files directly.
Who created the OBJ file format?
The OBJ file format was developed by Wavefront Technologies (designers of 3D Maya modelling software) for its Advanced Visualizer package.
Can you download an OBJ file and an MTL file together?
On sculpteo.com, for example, the MTL file and the OBJ file can be downloaded together into an archive file (ZIP file for example) to use the texture, colour and material information. It’s one of the best formats for printing multi-coloured material.
What is an obj file?
OBJ (or .OBJ) is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. The file format is open and has been adopted by other 3D graphics application vendors.
What is a free form geometry statement?
A free-form geometry statement can be specified in a line starting with the string vp. Define points in parameter space of a curve or surface. u only is required for curve points, u and v for surface points and control points of non-rational trimming curves, and u, v and w (weight) for control points of rational trimming curves.
what is a .obj file?
It is a file format used for a three-dimensional object containing 3D coordinates (polygon lines and points), texture maps, and other object information. It contains a standard 3D image format that can be exported and opened by several 3D image editing programs. Object files can be in ASCII format (.obj) or binary format (.mod) however does not contain color definitions for faces. Because of their format, they are human readable. It supports both polygonal objects and free-form objects. Polygonal geometry uses points, lines, and faces to define objects while free-form geometry uses curves and surfaces. Files in OBJ format can be opened with Autodesk Maya 2013, Blender, and MeshLab in Microsoft Windows, Mac OS, and Linux platforms.
How to open an OBJ file?
Launch a .obj file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .obj file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .obj files aren't yet associated with it. In this case, when you try to open a .obj file, you can tell Windows which application is the correct one for that file. From then on, opening a .obj file will open the correct application. Click here to fix .obj file association errors
what is a file extension?
A file extension is the set of three or four characters at the end of a filename; in this case, .obj. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.
What is an obj file?
The OBJ file format is a simple data format that renders only 3D geometry - the UV position of each texture coordinate vertex, the position of each vertex, vertex normals, and the faces that define each polygon as a list of vertices. and texture vertices.
When to use OBJ file?
OBJ file format can be used when you want to easily exchange 3D model data with other pre-existing tools.
Why is FBX file format so efficient?
The FBX file format is highly efficient because it uses a binary format. A binary file is faster to read and write, compared to a text-based format. It also saves space as binary representations take less space than human-readable numbers.
What is the format for 3D rendering?
Apart from FBX and OBJ, you must have heard about one more 3D rendering format which is glTF format.
Why are text based files slower to process?
Text-based formats are slower to process compared to binary file formats, especially as they get large as conversion between human-readable numbers and the computer-readable bytes requires time.
Is 3D file format space efficient?
These file formats are not space-efficient. When writing large amounts of numbers, the core of 3-D model data, more memory is required to write the numbers as human-readable text instead of raw computer-readable bytes.
Can you save 3D animation in OBJ?
That said, if you want to save a 3D scene or an animated character, you cannot use the OBJ format.