| Full Name | Joint Photographic Experts Group |
| Extension | JPEG |
| Type | Image |
| Mime Type | image/jpeg |
| Format | Binary |
A JPEG file is a flat, two-dimensional image file format created for the purpose of storing photographic images in a highly efficient digital format. JPEG files are widely used and supported by all image editing applications and can be opened on most devices with no additional image viewing software.
For many years, image file formats consumed large amounts of storage space while not offering 16.7 million full-color capabilities. JPEG aimed to solve this by offering a full-color solution combined with lossy compression techniques to allow high-resolution photographs to be stored using very little storage space and bandwidth.
Uses
The JPEG format is ideally suited to storing full-color photographic images. Due to the lossy compression it employs, it is not suitable for storing high-fidelity items such as logos and any image that contains transparency.
| Full Name | Wavefront |
| Extension | OBJ |
| Type | 3D Model |
| Mime Type | text/plain |
| Format | Text |
An OBJ file is a text-based file format used for the storage of 3D model data. The format was developed in the 1980s by Wavefront Technologies as a means to store the geometric mesh data associated with a 3D model. It has garnered widespread support in the following years, and you will find options to load from and save to the OBJ format in most modern 3D modeling applications.
As OBJ files are essentially text files, they can grow quite large when working with large and detailed 3D models.
Mesh Geometry
Within a 3D OBJ file are lists of vertices, mesh faces, face normals, texture coordinates, and more. The vertices, normals, and texture coordinates are stored in a continuous list and are indexed referenced within a separate list of mesh faces, ensuring optimal use of space within the file. A mesh face may contain three or more points, each of which can use a unique vector normal and texture coordinate.
