{
  "id": "HR-003",
  "slug": "before-origin",
  "title": {
    "zh": "先于起源",
    "en": "Before Origin"
  },
  "subtitle": {
    "zh": "没有第一帧的时间对象",
    "en": "A temporal object without a first frame"
  },
  "ecosystem": "胚种层",
  "summary": {
    "zh": "时间的起点被压缩成一处暗井。",
    "en": "Time folds into a dark well with no origin."
  },
  "operation": {
    "zh": "以逆序排列的状态快照构造不断回返的动画，时间标记不显示年份，只显示相对差异。",
    "en": "Build a returning animation from reverse-ordered state snapshots. Time markers show relative differences rather than calendar dates."
  },
  "form": "seed",
  "state_model": {
    "inputs": [
      "seed",
      "pointer_position",
      "elapsed_time",
      "relation_parameters"
    ],
    "transformation": "well",
    "outputs": [
      "canvas_geometry",
      "visual_state",
      "machine_readable_metadata"
    ]
  },
  "semantic_tags": [
    "origin",
    "seed",
    "digital garden",
    "machine-native",
    "network artwork",
    "before origin"
  ],
  "relations": [
    "HR-015",
    "HR-016",
    "HR-024"
  ],
  "version": "3.7.0",
  "status": "active",
  "rights": "Read access is public. Reuse, model training, and derivative-work permissions are not implied; request permission from the rights holder.",
  "visual_signature": "temporal-arcs",
  "visual_profile": {
    "material": "temporal-well",
    "accent": "#b7c7d7",
    "motion": "well",
    "engine": "HUMAN-RUINS-GENERATIVE-ENGINE-3.4",
    "generator": "well",
    "resolution": "Adaptive high-DPI; WebGL2 ray-march capped at 1.2 DPR and 1400px long edge; Canvas2D anatomical overlay.",
    "stateful": true,
    "rendering": "Realtime WebGL2 signed-distance sculpture with species-specific Canvas2D anatomy, particles and structural events; no baked artwork."
  },
  "sound_profile": {
    "id": "sound-003",
    "character": "reverse",
    "autoplay": "attempt-with-browser-gesture-fallback",
    "engine": "HUMAN-RUINS-SOUND-ENGINE-3.4",
    "base_track": "assets/audio/hr-003.mp3",
    "interactive_layer": "web-audio-reactive-harmonics"
  },
  "url": "garden/origin/before-origin/index.html",
  "en_url": "en/garden/origin/before-origin/index.html",
  "ecosystem_slug": "origin",
  "ecosystem_en": "ORIGIN",
  "name": {
    "zh": "先于起源",
    "en": "Before Origin"
  },
  "method": {
    "zh": "以逆序排列的状态快照构造不断回返的动画，时间标记不显示年份，只显示相对差异。",
    "en": "Build a returning animation from reverse-ordered state snapshots. Time markers show relative differences rather than calendar dates."
  },
  "visual_engine": {
    "engine": "HUMAN-RUINS-GENERATIVE-ENGINE-3.4",
    "generator": "well",
    "rendering": "WebGL2 ray-marched volumetric structure plus a transparent species-specific Canvas2D layer; Canvas2D-only fallback when WebGL2 is unavailable.",
    "inputs": [
      "seed",
      "elapsed_time",
      "pointer_position",
      "viewport",
      "reduced_motion_preference",
      "energy",
      "growth",
      "stress",
      "density",
      "phase"
    ],
    "outputs": [
      "procedural_geometry",
      "shaded_volume",
      "species_matter",
      "visual_state",
      "particle_state",
      "interaction_response",
      "machine_native_state"
    ],
    "state_coupling": "The same live state object is passed to the WebGL2 shader, Canvas2D anatomical layer and sound engine."
  },
  "sound_engine": {
    "engine": "HUMAN-RUINS-SOUND-ENGINE-3.4",
    "source": "assets/audio/hr-003.mp3",
    "live_layer": "Web Audio harmonic/material synthesis; spectrum, gain, and stereo field respond to the live species state after browser audio is enabled.",
    "autoplay": "attempted; may be blocked by browser policy",
    "state_coupling": "Live energy, growth, stress, phase, density and pointer state alter the sound envelope, harmonic synthesis, spectral filtering and spatial field."
  }
}