Full Answer
How to create OBJ file?
These tips will help you decide if the format is the right choice:
- OBJ has a large user base and support system, so if that is important to you, consider using OBJ.
- OBJ has a simple file structure compared to COLLOADA.
- OBJ is open source, and it’s a good bridge for converting files to other formats if you can’t convert between the two directly.
How to open an OBJ file?
OBJ file format
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What does OBJ stand for?
OBJ: Orange Blossom Jamboree. Miscellaneous » Unclassified. Rate it: OBJ: Order Browns Jersey. ...
How to import .OBJ?
Import Obj With Textures In SketchUpSimLab OBJ importer for SketchUp, enables SketchUp users to import .obj files. The plugin imports geometries, colors, nor...
What can open OBJ files?
Files in OBJ format can be opened with Autodesk Maya 2013, Blender, and MeshLab in Microsoft Windows, Mac OS, and Linux platforms.
What is OBJ format for 3D model?
An OBJ file is a standard 3D image format that can be exported and opened by various 3D image editing programs. It contains a three-dimensional object, including 3D coordinates, texture maps, polygonal faces, and other object information. OBJ files may also store references to one or more .
How are OBJ files formatted?
The OBJ file format is a simple data-format that represents 3D geometry alone — namely, the position of each vertex, the UV position of each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of vertices, and texture vertices.
Is OBJ the same as STL?
OBJ vs. The big difference between STL and OBJ meshes is what's displayed on the surface. STL files don't display any data on the surface of the mesh. They indicate only the surface itself– the geometry of the object, how big it is and the shape of its sides, but that's about it.
Whats better for 3D printing OBJ or STL?
Color & Texture STL simply can't store any information regarding these properties. Therefore, it's not the best format for purely graphical applications or those involving multicolor or multi-material 3D printing. OBJ excels at this point, being especially useful for 3D scanning applications.
Can Blender Open .OBJ files?
Luckily, Blender offers a wide range of file formats (e.g. OBJ, FBX, 3DS, PLY, STL, etc.) that can be used to import and export.
How do I create an OBJ file?
Create an OBJ Cube With Your Favorite ImagesStep 1: OBJ With Textures? ... Step 2: Collect Your Desired Pictures. ... Step 3: Download 3D Builder. ... Step 4: Create a Text Document. ... Step 5: Add OBJ Vertices. ... Step 6: Add Normals and Texture Coordinates. ... Step 7: Add Face Related Information. ... Step 8: Review Your OBJ File for Errors.More items...•
Can I 3D print an OBJ file?
The OBJ file format absolutely supports multi-color 3D printing.
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 ...
Should I export as STL or OBJ?
In terms of geometry description, OBJ is more capable than STL, as it can describe "real" curves, without the need to approximate them to a series of polygons.
Can a 3D printer print STL?
The STL (Standard Triangle Language) is the industry standard file type for 3D Printing. It uses a series of triangles to represent the surfaces of a solid model. All modern CAD (Computer Aided Design) software allow you to export their native file format into STL.
Does AutoCAD support OBJ?
Right now, AutoCAD cannot read an . obj file directly. Please use Autodesk 3DS Max to create the . dwg file from the OBJ file.
Material template library
A single .mtl file may define multiple materials. Materials are defined one after another in the file, each starting with the newmtl command:
See also
PLY (file format) is an alternative file format offering more flexibility than most stereolithography applications.
What is an obj file?
OBJ is a vector file, which makes the defined objects scalable. There’s no maximum file size.
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).
Can an OBJ file be referenced to multiple MTL files?
To reference an MTL file, use the following syntax in the OBJ file: OBJ files can reference multiple MTL files, which allows the ability to add numerous features to objects. Multiple OBJ files can reference the same MTL file. Each MTL file may contain one or more color and texture definitions.
Is OBJ better than STL?
Like all file formats, OBJ files do have some limitations, and it may be better to use a different format. Those scenarios include: Not all printers support OBJ, so STL may be a better option. Either way, check to make sure the printer you want to use supports your file format.
Can Blender import OBJ files?
It can import OBJ files and convert them to Blender’s format (called a BLEND file). You can also add OBJ files to existing BLEND files. Blender can also export files in the OBJ format, but because BLEND files have more data, not everything will be available in the exported file.
Is OBJ open source?
OBJ has a simple file structure compared to COLLOADA. OBJ is open source, and it’s a good bridge for converting files to other formats if you can’t convert between the two directly.
Can you add visual information to an OBJ file?
OBJ files don’t contain visual information, but you can add this information to the objects in the OBJ file by referencing a support file. Here’s an example of an MTL file from Florida State University:
Can you edit an obj file?
The OBJ file format is a text file format, which means you can edit OBJ files in a text editor if you are hard-core. Unfortunately, the original specification didn't seem to state what the end of line character should be, so some tools use carriage-returns and some use linefeeds. You may have to convert the end of line characters depending on which ...
Does Poser 3 use OBJ?
Poser 3 only uses a subset of the full OBJ file format. Here's everything you need to know about OBJ files if your just using Poser. This document leaves out all non- Poser usable commands and options so you aren't confused about things you'll never need. I recommend reading this tutorial, then opening up a couple OBJ files and checking them out, ...
When to use OBJ file?
You should use the OBJ file format when you want to easily exchange just 3D model data with other pre-existing tools. It is not the most efficient format, but for 3D object data, it is sufficient. The OBJ file format is incredibly widely supported.
What is an obj file?
The file format name, OBJ, is in reference to its purpose of storing 3D OBJ ects. The OBJ format was originally the native file format for the 1980s-era Advanced Visualizer 3D modeling package. Advanced Visualizer 3D is now obsolete, but some of its code was incorporated into its successor, the Maya 3D editing suite.
What is the strength of an OBJ file?
A strength of the OBJ file format is that it enables the storage of position, UV, and normal data that has different topology. This is optimal for high-quality modeling tools.
Why are text based files slower to process?
This means that text-based formats are slower to process, especially as they get large, compared to binary file formats.
When was the OBJ file format discontinued?
As mentioned earlier, the OBJ file format was created as the native file format for the Advanced Visualizer 3D software, but this software was discontinued in the mid-1990s. Since then, the OBJ file format hasn’t really had direction to keep up with the times. There have been a few attempts to improve the OBJ file to address some ...
Is OBJ file format space efficient?
Text-based file formats like the OBJ file format, while easy to write, have two very large downsides if you're dealing with a lot of data. First, these file formats are not space-efficient. When writing out large amounts of numbers, which is the core of 3D model data, it takes more disk space to write out the numbers as human readable text rather ...
Can you use OBJ files for 3D animation?
This means that if you want to store a 3D scene or an animated character, you cannot use the OBJ format.
Overview
File format
Anything following a hash character (#) is a comment.
An OBJ file may contain vertex data, free-form curve/surface attributes, elements, free-form curve/surface body statements, connectivity between free-form surfaces, grouping and display/render attribute information. The most common elements are geometric vertices, texture coordinates, vertex normals and polygonal faces:
Material template library
The Material Template Library format (MTL) or .MTL File Format is a companion file format to .OBJ, also defined by Wavefront Technologies, that describes surface shading (material) properties of objects within one or more .OBJ files. A .OBJ file references one or more .MTL files (called "material libraries"), and from there, references one or more material descriptions by name. .MTL files are ASCII text that define the light reflecting properties of a surface for the purposes of computer …
See also
• glTF
• OFF (file format)
• STL (file format)
• PLY (file format) is an alternative file format offering more flexibility than most stereolithography applications.
External links
• Appendix B1. Object Files (.obj), Advanced Visualizer Manual
• Mtl Specification
• Tools, libraries and example files
• FileFormat.Info: Wavefront OBJ File Format Summary