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Emulating nature: of Planets, Galaxies, fractals and Perlin noise
Transcript of Emulating nature: of Planets, Galaxies, fractals and Perlin noise
The need for noise
Perlin noise at its best
Pure old whitenoise
... is a band limited repeatable `random' function over R^n
- Approximation to gaussian filtered noise
- Implemented as a pseudo-random spline
- The trick is to make it fast
Perlin noise 2
Future space-based experiments will require high-resolution mock data
However, current methods are based on existing
high-resolution HST data
Shapelet images have minimal variation, and are limited to the resolution of the original iamge
When simulated strong lenses, crucial details are lost
Deep-field images are important for strong
Procedural computer games