| -h | Prints usage information. |
| -a | Viewing angles in degrees. If roll is defined then the mode is "absolute".. |
| -f | Fixed point position, default (0,0,0). |
| -d | Distance parameter, default 0.0. |
| -f | Bibfile defining the view parameters e.g. from MAPaint or warp input I/O. Override all other parameter input. |
| -m | Viewing mode, possible values:
| Parameter value | Viewing mode |
| 0 | up-is-up, default |
| 1 | statue |
| 2 | absolute |
|
| -r | Voxel size rescaling mode flags: bit 1 set - use voxel-size rescaling, bit 2 set - enable global scaling, default 1.0. |
| -s | Scale factor, default 1.0. |
| -o | Output filename, default is stdout. |
| -u | Up vector for up-is-up mode, default (0, 0, -1). |
| -t | Depth or thickness of the projection, Default: 0.0 (implies whole volume) |
| -i | Integration mode, possible values:
| n | none | shadow domain |
| d | domain | uniform domain (default) |
| v | values | value integration |
|
| -D | Domain density for use with uniform domain density integration mode, range [0-255] (default 255). |
| -V | Value to density look up table for use with value integration mode, all 256 entries to have range [0-255] (default identity). |