--help : Show this help
--field
: Set the field to extract data from. Supported fields:
- normal * rgb (default) - label - z - curvature - intensity
--scale
: Apply scaling to extracted data (only for z, curvature, and
intensity fields). Supported options: - <float> : Scale by a fixed number - auto : Auto-scale
to the full range - no : No scaling If the option is omitted then default scaling (depends on the
field type) will be used.
--colors : Choose color mapping mode for labels (only for label
field). Supported options: * mono : Use shades of gray (default) - rgb: Use randomly generated
RGB colors
Note: The converter will try to use RGB field if '--field' option is not
supplied.