| Type | Readable | Writeable | Constant |
| int | Always | Never | Yes |
This predefined symbol returns a value that indicates the purpose for which the current calculation is used. A formula can change its behavior depending on this value. For example, you could use a higher-quality but slower calculation when rendering.
Possible values are:
| Value | Meaning |
| 0 | Normal: the formula is used by a regular fractal window |
| 1 | Thumbnail: the formula is used by the browser to show thumbnails |
| 2 | Render: the formula is used by the disk rendering engine to produce a high-quality final image |
| 3 | Live preview: the formula is used for a live preview image in the Fractal Mode tool window (when exploring, eyedropping, or switching) |
Example:
if #calculationPurpose == 2 ; Formula is used in a disk render operation else ; Normal fractal window or thumbnail/preview calculation endif
See Also
Predefined symbols