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cheatsheet-tldr/tldr/ppmforge

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# ppmforge
> Generate fractals resembling clouds, planets and starry skies.
> More information: <https://netpbm.sourceforge.net/doc/ppmforge.html>.
- Generate an image of a planet:
`ppmforge > {{path/to/image.ppm}}`
- Generate an image of clouds or the night sky:
`ppmforge -{{night|clouds}} > {{path/to/image.ppm}}`
- Use a custom mesh size and dimension for fractal generation and specify the dimensions of the output:
`ppmforge -mesh {{512}} -dimension {{2.5}} -xsize {{1000}} -ysize {{1000}} > {{path/to/image.ppm}}`
- Control the tilt and the angle from which the generated planet is illuminated:
`ppmforge -tilt {{-15}} -hour {{12}} > {{path/to/image.ppm}}`