Which MIME types are related to file extension ".b3dm"?
The .b3dm file extension is associated with 3 MIME types:
application/json, application/octet-stream, application/vnd.maxar.archive.3tz+zip.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .b3dm Files
B3DM files are a specialized container for batched 3D models used in the 3D Tiles Archive File Format.
They package multiple glTF assets into a single binary file for rapid streaming and rendering in large-scale 3D environments.
This format is popular in geospatial and urban visualization, where efficiency and scalability matter.
The MIME types hint at different aspects of its usage:
- application/json: Often used to manage or describe metadata related to the 3D content.
- application/octet-stream: Indicates that the file carries raw binary data, typical for complex 3D models.
- application/vnd.maxar.archive.3tz+zip: Suggests the file might be delivered as a compressed archive for efficient transfer.
B3DM files are essential for applications like CesiumJS and other GIS or 3D visualization software that implement the 3D Tiles standard.
According to FilExt.com, this format ensures smooth integration and high-performance streaming of detailed 3D models.
Relationship between file extension and MIME type
A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.
File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.
File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.
Associated MIME types
application/json, application/octet-stream, application/vnd.maxar.archive.3tz+zip
FAQ
What is a MIME type?
A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.
MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.
How do I find the MIME type for a file?
You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.
Why can one extension have multiple MIME types?
Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.