What is an OBJ file? 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, which includes 3D coordinates, texture maps, polygonal faces, and other object information.
What can open an OBJ file?
Files in OBJ format can be opened with Autodesk Maya 2013, Blender, and MeshLab in Microsoft Windows, Mac OS, and Linux platforms.
Can you 3D print OBJ files?
The OBJ file format absolutely supports multi-color 3D printing. The standard 3D printing format STL does not support colors, and the other 3D printing formats like AMF, 3MF, and VRML are too fringe to consider for mainstream use.21-Sept-2021
How do I create an OBJ file?
Create an OBJ Cube With Your Favorite ImagesStep 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...•12-Jan-2018
Is STL or OBJ better?
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.09-Mar-2018
Can solidworks save as OBJ?
When using Solidworks, the exported models should be in OBJ or DAE format. When using other Solidworks formats, a conversion must be done prior to an upload on Augment, to match Augment requirements.
Can you slice an OBJ file?
Yes but you need to convert that OBJ file to an stl to be able to slice it in sliced program to be able to print it.
What does an MTL file do?
An MTL file is a material settings file used by 3D object editing applications, such as Adobe Photoshop and Autodesk Maya. It is stored alongside an . OBJ file and describes how a program should apply textures to that object.26-Jun-2020
Can you open OBJ files in Blender?
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. Popular formats are enabled by default, other formats are also supported and distributed with Blender, these can be enabled in the User Preferences through the use of Add-ons.
How do you make an OBJ file in Blender?
Procedure for exporting an object from Blender as OBJ:Select the object or objects you want to export. ... Choose File > Export > Wavefront (. ... From the Export window, expand the Export OBJ panel on the left side.Set Scale to 100.00.Leave all other settings at default.Press Export OBJ.23-Sept-2021
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.16-Jun-2020
Is STL obsolete?
STL Format Is Obsolete: Here's Why You Should Be Using 3MF - 3D Printing Industry.27-Aug-2021
Is an OBJ file a mesh?
Because of its aesthetic value, it's usually used by 3D animators and artists but since it is a watertight mesh you can use it for printing too. It offers a more realistic likeness to the object itself, vibrant color and photographic accuracy, meaning that it saves loads of CAD modeling time.
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:
Why is OBJ file so big?
The format is simple and text-based, which is one reason why many programs use it. However, the simple format structure may also lead to huge OBJ file sizes if they store large and complex 3D objects.
What is the best format to save 3D models?
NOTE: While the OBJ format is one of the most common formats used for storing 3D models, it is only one of many options for saving models. Some other options include .DAE, .STL, .IGS , .FBX, .MAX, .DWG, and .3DS.
Can you open an obj file?
If you receive an OBJ file you can choose from a large number of free and commercial applications to open it. However, you should select the program based on the context in which the OBJ file will be used. For example, if you are looking to open and modify a 3D object utilized in film special effects and are on a tight budget, ...
What is a vertex command?
The vertex command, this specifies a vertex by its three coordinates. The vertex is implicitly named by the order it is found in the file. For example, the first vertex in the file is referenced as '1', the second as '2' and so on. None of the vertex commands actually specify any geometry, they are just points in space.
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, ...
What command specifies a normal vector?
They really don't tell you anything by themselves, they must be grouped with a vertex in a 'f' face command. The vertex normal command specifies a normal vector. A lot of times these aren't used, because the 'f' face command will use the order the 'v' commands are given to determine the normal instead.
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 ...
What direction do you flip a normal in 3D?
They are assumed to be in counter-clockwise direction. If you aren't using vn's to specify the normal and you wanted to 'flip the normal' you would reverse the order of the verticies. In most 3D programs, if the normal points the wrong way, there will appear to be a hole in the object.
What is a G name?
g name. The group name command specifies a sub-object grouping. All 'f' face commands that follow are considered to be in the same group. usemtl name. The use material command lets you name a material to use. All 'f' face commands that follow will use the same material, until another usemtl command is encountered.