ppmforge

Generate fractal terrain and cloud images

TLDR

Generate fractal terrain

$ ppmforge > [terrain.ppm]

Generate clouds

$ ppmforge -clouds > [clouds.ppm]

Generate night view

$ ppmforge -night > [night.ppm]

Specify dimensions

$ ppmforge -width [512] -height [512] > [output.ppm]

ppmforge generates fractal-based images using procedural algorithms, producing realistic terrain, cloud, and planetary surface images. The terrain mode creates elevation-colored landscapes with water, while the cloud mode generates atmospheric patterns.A random seed parameter allows reproducible generation, and mesh size controls the level of fractal detail. The night mode creates star field images. Output dimensions are configurable independently for width and height. Part of the Netpbm toolkit.

PARAMETERS

-clouds

Generate cloud image.

-night

Generate night view.

-width N

Output width.

-height N

Output height.

-seed N

Random seed.

-mesh N

Mesh size.

INSTALL

sudo apt install netpbm

sudo dnf install netpbm

sudo pacman -S netpbm

sudo apk add netpbm

sudo zypper install netpbm

brew install netpbm

nix profile install nixpkgs#netpbm

CAVEATS

Procedural generation. Part of Netpbm suite.

HISTORY

ppmforge was created as part of Netpbm for fractal image generation.