Signatures
|
| External signatures |
File extension: obj
|
| Internal signatures |
| Name |
Wavefront OBJ Polygonal Geometry |
| Description |
BOF:0-1024 (can be unlimited preamble, but we want to anchor near the beginning of the file for most cases).
Must have vertices:
v <space> 3 x space separated floating point values that can have a negative value or not representing x, y, z. w is optional, line ending.
Later, the vertices must have a face:
f <space> 3+ integer values, can be negative, separated by space. Faces count from 1. PRONOM uses this minimally viable set, however each face can have values for ‘vertex textures’ and ‘vertex normals’ - if present, these values are separated by /. Each row ends in new line character |
| Byte sequences |
| Position type |
Absolute from BOF |
| Offset |
0 |
| Maximum Offset |
1024 |
| Byte order |
|
| Value |
7620{0-8}[30:39]2E[30:39]{0-32}20{0-8}[30:39]2E[30:39]{0-32}20{0-8}[30:39]2E[30:39]{0-64}0A*6620{0-1}[31:39]{0-20}20{0-1}[31:39]{0-20}20{0-1}[31:39]{0-40}0A |
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Details: File format summary
: detailed report on file format 
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