HOLLOWPRISM  -  a shader pack for Minecraft Java (Iris or OptiFine)

INSTALL
  1. Install Iris (recommended) or OptiFine.
  2. Options > Video Settings > Shader Packs > "Open Shader Pack Folder".
  3. Drop Hollowprism.zip (do not unzip) into that folder, select it.

WHAT IT DOES
  * The world curves UPWARD around you, as if you live on the inside of a sphere.
  * Colors rotate around the color wheel with distance, through an iridescent mist.
  * Procedural sky: spectral-ringed sun, cratered moon, nacreous clouds,
    nebula + aurora at night (clouds/sky from vanilla are replaced).
  * Ink outlines up close, neon prismatic rim-light on far silhouettes.
  * Screen-space shadows, rose-violet torchlight falloff, prismatic water.
  * Nether and End have their own versions (world-1 / world1 folders, each a full copy).

OPTIONS (Shader Pack Settings)
  Hollow Curvature, Prism Hue Drift, Mist Distance, Outlines, Shadows, Aurora, Waving.

NOTES
  * If the far rim of the world vanishes when you look up, that is the game's
    chunk culling (it culls using the un-bent positions). Lower curvature helps.
  * Wants 1.17+ block names. Tested design target: Iris 1.6+.
