Hollow Shader — PrismTide Equinox
==================================
Lightweight/medium shader for Iris + Fabric.

Features:
- Foliage waving (grass, flowers, leaves, crops, vines)
- Soft directional shadows (1024px map)
- Color grading + subtle vignette
- Rippled water reflections

--- v2 additions (custom new gbuffers) ---

[gbuffers_water]  — ENHANCED, NOT original
  * Multi-octave vertex waves (7 harmonics)
  * Procedural FBM normal map (3 scrolling layers)
  * Caustic shimmer pattern
  * Physical Fresnel (Schlick) + Blinn-Phong specular
  * Deep/shallow body color gradient
  * No external texture required

[gbuffers_clouds]  — NEW GBUFFER (was not present before)
  * Fully procedural volumetric-style clouds
  * 3-octave FBM base shape + mid detail + wispy edges
  * Edge erosion noise for soft Rethinking Voxels look
  * Physical top-lit / shadowed-underside lighting model
  * Dense core darkening
  * Horizon atmospheric fade
  * Slow animated drift
  * No external texture required

Compatible: Iris 1.6+, Minecraft 1.16–1.21, Fabric
