| Full Name | Graphics Interchange Format |
| Extension | GIF |
| Type | Image |
| Mime Type | image/gif |
| Format | Binary |
GIF files are a popular image format on the internet and are a common format used in the distribution of internet memes. GIF files have been around since the dawn of the internet and were designed to offer high-resolution image capabilities within a small file size.
Due to their ability to be used as an animation format, GIF files have become particularly popular as the format of choice for distributing internet memes. Their lack of full 24-bit color support has, however, seen the PNG format used in preference to GIF for many applications.
Uses
GIF files are particularly useful for storing animation sequences, and this is one of the main reasons for the format's popularity. In the early days of the internet, the use of GIF files to store photographic images and other web assets declined in favor of more modern formats such as JPG and PNG.
| 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.
