p73: 昼夜光照四时段档（清晨/正午/黄昏/夜晚）

M6Presentation 新增 periodAtTick/periodLighting 参数表（AmbientTint 乘性色调 + Veil/VeilAlpha 加性覆盖 + LanternGlow），边界与 timePeriodLabel 一致；正午为恒等档不改白平衡。DrawWorldView 并入时段色调与 effectiveLanternGlow（黄昏 0.6 起点亮、夜晚 1.0），覆盖色最后叠加。新增 P73 回归；新增 LV_P73_SHOT 同机位四帧证据 + analyze-p73（verdict=PASS）；字形表补 正/午（345）。Desktop 346/346、Kernel 120/120、digest 与 p70 一致。

1 files changed, 181 insertions, 0 deletions

diff --git a/scripts/analyze-p73.py b/scripts/analyze-p73.py
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+#!/usr/bin/env python3
+"""P73（昼夜光照层次：四时段档）证据分析：同一桥头机位 6/12/18/22 时四张真实帧。
+
+判据（读真实实跑日志 + 逐帧像素统计）：
+  1. 日志含四行 `p73-shot=p73-<period> hour=.. period=.. blend=.. lantern=.. tint=.. veil=..`，
+     时段名覆盖 清晨/正午/黄昏/夜晚。
+  2. 参数一致性：正午 veil=0 且 lantern=0；黄昏 lantern>=0.3（路灯/灯笼开始点亮）；
+     夜晚 lantern>=1.0；四行 veil/tint/blend 组合两两不同。
+  3. 抽帧 PNG：1280x720、非空白（std>=8）、无 24x24 纯黑块。
+  4. 可辨差异：逐帧平均亮度（night 最暗、noon 最亮）与平均暖度（黄昏 R-B 最高）；
+     四帧两两像素 diff > 0。
+  5. 色调是否「好看/自然」的 vision 复核由 Hermes 侧完成，非本脚本判据。
+
+Usage: python3 scripts/analyze-p73.py <record-dir> <out-txt>
+Exit 0 pass / 1 fail / 2 usage.
+"""
+
+import re
+import sys
+from pathlib import Path
+
+import numpy as np
+from PIL import Image
+
+SHOT_RE = re.compile(
+    r"^p73-shot=(\S+) hour=([\d.]+) tick=(\d+) period=(\S+) blend=([\d.]+) lantern=([\d.]+) tint=(\d+),(\d+),(\d+) veil=(\d+)$",
+    re.MULTILINE,
+)
+ORDER = ["p73-morning", "p73-noon", "p73-dusk", "p73-night"]
+DARK_SIDE = 24
+DARK_MAX = 8
+
+
+def max_block(rgba, side, predicate):
+    h, w = rgba.shape[0], rgba.shape[1]
+    if h < side or w < side:
+        return 0
+    mask = predicate(rgba).astype(np.int64)
+    integral = np.zeros((h + 1, w + 1), dtype=np.int64)
+    integral[1:, 1:] = mask.cumsum(axis=0).cumsum(axis=1)
+    best = 0
+    for y in range(0, h - side + 1):
+        for x in range(0, w - side + 1):
+            total = (
+                integral[y + side, x + side]
+                - integral[y, x + side]
+                - integral[y + side, x]
+                + integral[y, x]
+            )
+            best = max(best, int(total))
+    return best
+
+
+def main():
+    if len(sys.argv) != 3:
+        print(__doc__)
+        return 2
+    rec = Path(sys.argv[1])
+    out = Path(sys.argv[2])
+    log = (rec / "log.txt").read_text(encoding="utf-8", errors="replace")
+    failures = []
+    lines = [
+        "P73（昼夜光照层次：清晨/正午/黄昏/夜晚四档）证据分析 — 真实 Desktop xvfb 1280x720",
+        "钩子：LV_P73_SHOT=1（同一桥头光源机位，6/12/18/22 各一帧，画面差异只来自光照）",
+        "路径：tick → periodAtTick → periodLighting(环境色调/覆盖色/VeilAlpha/灯光) + 连续 blend/warmth veils",
+        "",
+    ]
+
+    shots = {}
+    for m in SHOT_RE.finditer(log):
+        name = m.group(1)
+        if name not in shots:
+            shots[name] = {
+                "hour": float(m.group(2)),
+                "tick": int(m.group(3)),
+                "period": m.group(4),
+                "blend": float(m.group(5)),
+                "lantern": float(m.group(6)),
+                "tint": (int(m.group(7)), int(m.group(8)), int(m.group(9))),
+                "veil": int(m.group(10)),
+            }
+    for name in ORDER:
+        if name not in shots:
+            failures.append(f"log missing p73-shot={name}")
+        else:
+            s = shots[name]
+            lines.append(
+                f"{name}: hour={s['hour']} tick={s['tick']} period={s['period']} blend={s['blend']} lantern={s['lantern']} tint={s['tint']} veil={s['veil']}"
+            )
+    lines.append("")
+
+    if "p73-noon" in shots:
+        s = shots["p73-noon"]
+        if s["veil"] != 0:
+            failures.append(f"noon veil {s['veil']} != 0 (must be identity)")
+        if s["lantern"] != 0.0:
+            failures.append(f"noon lantern {s['lantern']} != 0")
+    if "p73-dusk" in shots and shots["p73-dusk"]["lantern"] < 0.3:
+        failures.append(f"dusk lantern {shots['p73-dusk']['lantern']} < 0.3 (lamps must start at dusk)")
+    if "p73-night" in shots and shots["p73-night"]["lantern"] < 1.0:
+        failures.append(f"night lantern {shots['p73-night']['lantern']} < 1.0")
+    combos = {(s["blend"], s["lantern"], s["tint"], s["veil"]) for s in shots.values()}
+    if len(combos) < len(shots):
+        failures.append("two periods share identical (blend,lantern,tint,veil) parameters")
+    lines.append("")
+
+    stats = {}
+    for name in ORDER:
+        path = rec / f"{name}.png"
+        if not path.exists():
+            failures.append(f"missing frame {name}.png")
+            continue
+        rgba = np.asarray(Image.open(path).convert("RGBA"), dtype=np.uint8)
+        rgb = rgba[:, :, :3].astype(np.float64)
+        h, w = rgb.shape[0], rgb.shape[1]
+        mean = rgb.mean(axis=(0, 1))
+        warmth = float(mean[0] - mean[2])
+        brightness = float(rgb.mean())
+        std = float(rgb.std())
+        dark = max_block(
+            rgba, DARK_SIDE,
+            lambda a: (a[:, :, 0] <= DARK_MAX) & (a[:, :, 1] <= DARK_MAX) & (a[:, :, 2] <= DARK_MAX) & (a[:, :, 3] >= 250),
+        )
+        stats[name] = {"brightness": brightness, "warmth": warmth, "std": std}
+        lines.append(
+            f"{name}.png: size={w}x{h} brightness={brightness:.1f} R={mean[0]:.1f} G={mean[1]:.1f} B={mean[2]:.1f} warmth(R-B)={warmth:+.1f} std={std:.1f} dark_block={dark}"
+        )
+        if (w, h) != (1280, 720):
+            failures.append(f"{name}.png size {w}x{h} != 1280x720")
+        if std < 8.0:
+            failures.append(f"{name}.png looks blank (std={std:.1f})")
+        if dark > 0:
+            failures.append(f"{name}.png has {DARK_SIDE}x{DARK_SIDE} pure-black block")
+    lines.append("")
+
+    have = [n for n in ORDER if n in stats]
+    for i in range(len(have)):
+        for j in range(i + 1, len(have)):
+            a = np.asarray(Image.open(rec / f"{have[i]}.png").convert("RGB"), dtype=np.int16)
+            b = np.asarray(Image.open(rec / f"{have[j]}.png").convert("RGB"), dtype=np.int16)
+            differing = int((np.abs(a - b).sum(axis=2) > 0).sum())
+            lines.append(f"diff {have[i]} vs {have[j]}: differing_pixels={differing}")
+            if differing == 0:
+                failures.append(f"{have[i]} identical to {have[j]}")
+
+    if all(n in stats for n in ORDER):
+        if not (stats["p73-dusk"]["warmth"] > stats["p73-noon"]["warmth"]):
+            failures.append("dusk is not warmer than noon (R-B)")
+        if not (stats["p73-night"]["warmth"] < stats["p73-noon"]["warmth"]):
+            failures.append("night is not cooler than noon (R-B)")
+        if not (stats["p73-night"]["brightness"] < stats["p73-dusk"]["brightness"]):
+            failures.append("night is not darker than dusk")
+        if not (stats["p73-night"]["brightness"] < stats["p73-morning"]["brightness"]):
+            failures.append("night is not darker than morning")
+        lines.append("")
+        lines.append(
+            f"brightness order: "
+            + " > ".join(f"{n.split('-')[1]}({stats[n]['brightness']:.1f})" for n in sorted(ORDER, key=lambda n: -stats[n]["brightness"]))
+        )
+        lines.append(
+            f"warmth order: "
+            + " > ".join(f"{n.split('-')[1]}({stats[n]['warmth']:+.1f})" for n in sorted(ORDER, key=lambda n: -stats[n]["warmth"]))
+        )
+
+    lines.append("")
+    if failures:
+        lines.append("verdict=FAIL")
+        for f in failures:
+            lines.append("  - " + f)
+    else:
+        lines.append("verdict=PASS")
+        lines.append("  four periods have distinct parameters; noon identity, dusk lamps on, night lamps full;")
+        lines.append("  real frames render 1280x720, differ pairwise, night darker / noon brighter / dusk warmer.")
+    out.parent.mkdir(parents=True, exist_ok=True)
+    out.write_text("\n".join(lines) + "\n", encoding="utf-8")
+    print(f"wrote {out} verdict={'FAIL' if failures else 'PASS'}")
+    return 1 if failures else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())