Complete documentation for Model format 0.3

docs/model-format.man

@@ -65,6 +65,23 @@ Unnecessary files should not be present in the archive, but archives with
 unnecessary files are still valid.
 .
 .
+.SH FORMAT VERSION
+.PP
+.
+Every Facecam2D model has a version code in the 
+.B model.toml
+in the format "major.minor".
+A given version of Facecam2D can read model files with the same
+major version as the version it is compatible with.
+For example, if Facecam2D can read the model format up to version 0.3,
+the same build of Facecam2D can also read a model written in format 0.2,
+but cannot play a model written in format 1.2 or 0.5.
+It is only backwards compatible with the same major version.
+Higher minor versions of the model format indicate that there are newer
+optional features available, but does not break compatibility with formats
+of the same major version.
+.
+.
 .SH KEYS
 .SS format
 .TP
@@ -114,6 +131,26 @@ Float: How far the part will move towards the
 point.
 If negative, the part will move in the opposite direction.
 .
+.TP
+rot_factor, scale_factor
+Float: How much the part will rotate/scale.
+Default is 1.0.
+Higher values result in more exaggerated rotation or scaling.
+.
+.TP
+origin
+Float Array: Origin (pivot point) of the model defined in
+normalized coordinates.
+Default is [0.0, 0.0].
+.
+.TP
+pos_offset, scale_offset
+Float Array: Positional offset or scale of a part.
+Default is [0.0, 0.0] for
+.B pos_offset
+and [1.0, 1.0] for
+.B scale_offset.
+.
 .SS textures
 .TP
 file