| Argument | Variable | Type | Length | Range | Default | Description |
| id | Id | str | 1 | | 0 | script id |
| handle | Self | self | 1 | | | handle to self |
| disabled | Disabled | bool | 1 | | 0 | disable execution and piping |
| i | Image | vtkImageData | 1 | | | the input image |
| ifile | ImageInputFileName | str | 1 | | | filename for the default Image reader |
| array | ArrayName | str | 1 | | | name of the array to display |
| renderer | vmtkRenderer | vmtkRenderer | 1 | | | external renderer |
| sampledistance | SampleDistance | float | 1 | (0.0,) | 1.0 | the distance at sample projections are generated |
| autosampledistance | AutoSampleDistance | bool | 1 | | 1 | toggle automatic sample distance |
| windowlevel | WindowLevel | float | 2 | | [0.0, 0.0] | the window/level for generating the rendering |
| opacity | Opacity | float | 2 | | None | the opacity range is defined from 0 (transparent) to 1 (opaque) |
| display | Display | bool | 1 | | 1 | toggle rendering |
| ofile | ImageOutputFileName | str | 1 | | | filename for the default Image writer |
