Karl the Fog

Karl is San Francisco's beloved fog that rolls in from the Pacific Ocean, particularly during summer months. Named affectionately by locals, this marine layer creates the city's iconic atmospheric conditions, draping the Golden Gate Bridge and downtown skyline in a mysterious blanket of grey.

This fractal visualization captures Karl's movement across San Francisco's distinctive skyline using recursive Perlin noise algorithms. The fog density varies with fractal layers creating realistic wispy tendrils and thick banks. Watch as day transitions to night with changing sky colors, city lights emerging, and Karl rolling through the city.

Adjust fog density to control opacity, speed for Karl's movement rate, time speed for the day/night cycle, and fractal detail for the complexity of fog patterns. The skyline features recognizable landmarks including the Transamerica Pyramid, Salesforce Tower, and rolling hills.