starry: Edge wip

StarryNights/Ariane13.js

 // Ariane13 par PLN
 // À partir d'une photo prise le 13 avril 2019 par le téléscope Hubble de Abell 2261, une galaxie géante 10 fois plus grande que notre Voie Lactée.
 // https://nech.pl/ariane13
+// Original image credit: NASA; ESA; M. Postman, STScI; T. Lauer, NOAO, Tucson; CLASH team.
+
 s0.initImage("https://git.plnech.fr/pln/Hydra/raw/e8cd9c3651615342ee7af334fe21684585409941/StarryNights/img/april-13-2019-galaxy-cluster-abell-2261.jpg")
-// s0.initImage("file:///home/pln/Work/Hydra/StarryNights/img/april-13-2019-galaxy-cluster-abell-2261.jpg")
 src(s0)
 .brightness(0.13).contrast(1.72)
 .out(o0)

StarryNights/Edge.js

+s0.initImage("/home/pln/Work/Hydra/StarryNights/img/Edge.png");
+src(s0).out(o0);
+
+periodScale = 2.9;
+
+noise(200, 0.13)
+  .blend(
+    // Filter out the center by blending a diffed shape
+    solid(1, 1, 1).diff(shape(30).color(1, 1, 1).scale(1.8).scrollX(-0.015))
+  )
+  .thresh(0.95)
+  .color(0.71,
+         0,
+         () => 0.49 + 0.1 * Math.sin(time),
+         0
+       )
+  .out(o1);
+
+src(o0)
+  .blend(src(o0).rotate(0.5).scale(() => 1.05 + 0.05 * Math.sin(time / periodScale)))
+  .blend(src(o0).rotate(0.25).scale(() => 0.95 - 0.05 * Math.sin(time / periodScale)))
+  .out(o2);
+
+src(o1)
+.diff(src(o2))
+// .blend(src(o2)
+// .modulate(shape(30)
+  // .scale(() => 0.4 + Math.sin(time /20) * 0.059, 0.88)
+  // .rotate(() => time/4 % 360)
+  // .scrollX(-0.02)
+// )
+// )
+.out(o3)
+
+render(o3)

StarryNights/SquareWorlds.js

@@ -13,16 +13,12 @@ src(o0)
 
 src(o2)
   .blend(src(o2).scale(0.99))
-  .blend(src(o2)
-    // .rotate(() => Math.sin(time / (100 * (time / 250))))
-, 0.05)
-  // .blend(o2)
-  .modulateScale(osc(20), 0.00015)
+  .blend(src(o2), 0.05)
+  .modulateScale(osc(20), 0.0005)
   .out(o1)
 
 src(o1)
   .blend(o0,0.24)
-  // .blend(o1,0.3)
   .brightness(0.1).contrast(1.3)
   .scale(() => 1.2 + Math.sin(time/70) * 0.6)
 .out(o3)

StarryNights/Study/GalaxyTrip.js

+// Galaxy Trip
+// by Rangga Purnama Aji
+// https://ranggapurnamaaji1.wixsite.com/portfolio
+
+shape(1,1)
+  .mult(voronoi(1000,2)
+  .blend(o0).luma())
+  .add(shape(3,0.125)
+       .rotate(1,1).mult(voronoi(1000,1).luma())
+       .rotate(1.5)).scrollX([0.1,-0.0625,0.005,0.00001],0)
+  .scrollY([0.1,-0.0625,0.005,0.00001],0)
+  .out()
\ No newline at end of file

StarryNights/backlog.md

+# Giant Growth
+https://www.nasa.gov/feature/goddard/2021/hubble-watches-how-a-giant-planet-grows/
+> “We just don’t know very much about how giant planets grow,”
+> Credits: NASA, ESA, STScI, Joseph Olmsted (STScI)
+
+
+# Edge of Destruction
+https://www.nasa.gov/feature/goddard/2021/hubble-captures-giant-star-on-the-edge-of-destruction
+> AG Carinae, is waging a tug-of-war between gravity and radiation to avoid self-destruction.
+> These images are a composite of separate exposures acquired by the WFC3/UVIS instrument on the Hubble Space Telescope. Several filters were used to sample narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter.
+> Credits: NASA, ESA, STScI
+
+# Merge
+https://www.nasa.gov/feature/goddard/2021/hubble-spots-double-quasars-in-merging-galaxies/
+> This artist's conception shows the brilliant light of two quasars residing in the cores of two galaxies that are in the chaotic process of merging. The gravitational tug-of-war between the two galaxies stretches them, forming long tidal tails and igniting a firestorm of starbirth. Quasars are brilliant beacons of intense light from the centers of distant galaxies. They are powered by supermassive black holes voraciously feeding on infalling matter. This feeding frenzy unleashes a torrent of radiation that can outshine the collective light of billions of stars in the host galaxy. In a few tens of millions of years, the black holes and their galaxies will merge, and so will the quasar pair, forming an even more massive black hole. A similar sequence of events will happen a few billion years from now when our Milky Way galaxy merges with the neighboring Andromeda galaxy.
+Credits: NASA, ESA, and J. Olmsted (STScI)
+
+# Small Black Holes
+https://www.nasa.gov/feature/goddard/2021/hubble-uncovers-concentration-of-small-black-holes/
+> Astronomers found something they weren't expecting at the heart of the globular cluster NGC 6397: a concentration of smaller black holes lurking there instead of one massive black hole.
+> ...a stellar graveyard...
+> Credits: NASA/GSFC/SVS/M.Subbarao & NASA/CXC/SAO/A.Jubett