Umbra — Adding Some Chaos (On Purpose)

• Real telescopes don’t hand you a perfect light curve, they hand you a noisy mess with a signal buried in it, so I added a noise toggle to make Umbra actually look like real data instead of a simple ahh textbook diagram

• Used a Box-Muller transform to turn two uniform randoms into a proper gaussian sample, tuned roughly to TESS-scale scatter so it’s not comically noisy, just enough to make the dip look like something you’d actually have to squint at

• New “N” button sits next to the reset one, goes amber when it’s on, same button family as everything else up there

• The bit I actually spent time thinking about, which was that the noise only touches what gets drawn on the graph, not the underlying flux value. Transit detection, transit counting, period measurement, and the stats panel all still read the clean number

• I wanted it this way on purpose, in real analysis you don’t just throw the noise away, you fit the curve through it, so having Umbra’s detection stay accurate underneath a noisy-looking graph felt like the more honest way to represent that, rather than making the sim itself worse at its job just for realism points lol