This setting is an int value that specifies the built-in fractal formula to use. Currently, there are two built-in formulas, so the value of the setting can be either 1 or 2. The following types are defined:
| Type | Description | Parameter 1 | Parameter 2 |
| 1 | Mandelbrot: z = z*z + c | complex start (starting value) | float bailout (bail-out value) |
| 2 | Julia: z = z*z + c | complex seed (Julia seed) | float bailout (bail-out value) |
Usually you don't need to write your own formulas using the built-in formulas, since all built-in types are implemented in Standard.ufm distributed with Ultra Fractal.
This setting can only be used in the builtin section in fractal formulas.
Example:
builtin: type = 1
See Also
Writing fractal formulas