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Boeing 747-400 autoresearch session summary — trajectory, 21 experiments, blind-sculptor story
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<div class="wrap">
<header>
 <h1>✈️ BOEING 747-400 — AUTORESEARCH SESSION</h1>
 <p>21 experiments · frozen SHA-256-hashed scoring harness · one editable file (src/plane.js) · built entirely without vision</p>
 <div class="badges">
 <div class="badge"><div class="v r">35.6</div><div class="l">baseline</div></div>
 <div class="badge"><div class="v g">76.1</div><div class="l">final score</div></div>
 <div class="badge"><div class="v b">92.1</div><div class="l">IoU / 100</div></div>
 <div class="badge"><div class="v b">~60</div><div class="l">VLM / 100</div></div>
 <div class="badge"><div class="v y">21</div><div class="l">experiments</div></div>
 </div>
</header>
<section>
 <h2>Final renders — frozen scoring cameras</h2>
 <div class="gallery">
 <div class="shot"><img src="https://huggingface.co/buckets/Mike0021/boeing-747-final/resolve/side.png" alt="side view"><div class="cap"><b>SIDE</b><span>orthographic</span></div></div>
 <div class="shot"><img src="https://huggingface.co/buckets/Mike0021/boeing-747-final/resolve/top.png" alt="top view"><div class="cap"><b>TOP</b><span>orthographic</span></div></div>
 <div class="shot"><img src="https://huggingface.co/buckets/Mike0021/boeing-747-final/resolve/front_q.png" alt="front quarter"><div class="cap"><b>FRONT-QUARTER</b><span>perspective</span></div></div>
 <div class="shot"><img src="https://huggingface.co/buckets/Mike0021/boeing-747-final/resolve/rear_q.png" alt="rear quarter"><div class="cap"><b>REAR-QUARTER</b><span>perspective</span></div></div>
 <div class="shot"><img src="https://huggingface.co/buckets/Mike0021/boeing-747-final/resolve/side_sil.png" alt="side silhouette"><div class="cap"><b>SIDE SILHOUETTE</b><span class="g">IoU 0.924</span></div></div>
 <div class="shot"><img src="https://huggingface.co/buckets/Mike0021/boeing-747-final/resolve/top_sil.png" alt="top silhouette"><div class="cap"><b>TOP SILHOUETTE</b><span class="g">IoU 0.919</span></div></div>
 </div>
</section>
<section>
 <h2>Score trajectory</h2>
 <div class="chartcard"><svg id="chart" viewBox="0 0 1000 300" width="100%"></svg></div>
</section>
<section>
 <h2>Experiments</h2>
 <table>
 <tr><th>#</th><th>Experiment</th><th>What happened</th><th style="text-align:right">Score</th><th></th></tr>
 <tr class="keep"><td class="n">1</td><td class="name">baseline (judge v1: claude-sonnet-4.5)</td><td class="note">Crude placeholder: cylinders, cones, slabs</td><td class="score">42.14</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">2</td><td class="name">re-baseline (judge &#8594; stealth/ox-alpha)</td><td class="note">User-directed judge switch; harsher rubric</td><td class="score">35.64</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">3</td><td class="name">fuselage loft (double-bubble hump)</td><td class="note">Max-union upper lobe, upswept tail; fixed inverted normals</td><td class="score">40.48</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">4</td><td class="name">wings + harness orientation fix</td><td class="note">Airfoil wings; caught masks compared MIRRORED vs references</td><td class="score">68.40</td><td class="badge keep">KEEP</td></tr>
<tr class="disc"><td class="n">5</td><td class="name">engines/fin/tail bundle</td><td class="note">Port nacelles at wingXLE(&#8722;z) &#8594; engines near nose; reverted</td><td class="score">65.21</td><td class="badge disc">DISCARD</td></tr>
<tr class="keep"><td class="n">6</td><td class="name">livery texture</td><td class="note">Window rows, cheatline, cockpit, belly &#8212; vlm 27&#8594;38</td><td class="score">70.40</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">7</td><td class="name">mipmap fix + salvaged parts</td><td class="note">Window dots vanished under trilinear filtering; LinearFilter fixed</td><td class="score">72.44</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">8</td><td class="name">bisect: fin-TE sign bug</td><td class="note">finChord negated &#8594; fin mirrored forward; stab lofts reverted</td><td class="score">72.44</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">9</td><td class="name">envMap + cockpit placement</td><td class="note">Procedural equirect sky reflections on all paint materials</td><td class="score">73.96</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">10</td><td class="name">smooth winglet cant curve</td><td class="note">6-station blend replaced hard kink; wider hump lobe</td><td class="score">75.00</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">11</td><td class="name">tail profile matched to ref</td><td class="note">Numeric profile match = +2.6 side IoU (biggest geometry win)</td><td class="score">75.89</td><td class="badge keep">KEEP</td></tr>
<tr class="disc"><td class="n">12</td><td class="name">wide blended winglet</td><td class="note">IoU +0.05 but judge wants a DISTINCT tapered winglet</td><td class="score">73.43</td><td class="badge disc">DISCARD</td></tr>
<tr class="keep"><td class="n">13</td><td class="name">soft hump blend + delayed lobe</td><td class="note">smax fillet; smoother AND closer to reference polyline</td><td class="score">76.01</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">14</td><td class="name">slim top-view nose + env boost</td><td class="note">rz &lt; ry for s&lt;7 &#8212; less blobby in plan view</td><td class="score">76.02</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">15</td><td class="name">engines fwd, dark belly reverted</td><td class="note">Darker belly gray read as wrong; light gray is correct</td><td class="score">76.06</td><td class="badge keep">KEEP</td></tr>
<tr class="disc"><td class="n">16</td><td class="name">engines +4.0</td><td class="note">Judge sees pods hanging too far forward of wing</td><td class="score">74.10</td><td class="badge disc">DISCARD</td></tr>
<tr class="keep"><td class="n">17</td><td class="name">fin/stab root fillets</td><td class="note">Clean junctions; IoU-neutral (inside silhouette)</td><td class="score">76.56</td><td class="badge keep">KEEP</td></tr>
<tr class="keep"><td class="n">18</td><td class="name">env clouds + gear doors</td><td class="note">Reflection structure + belly door outlines</td><td class="score">76.06</td><td class="badge keep">KEEP</td></tr>
<tr class="disc"><td class="n">19</td><td class="name">enlarged fairing</td><td class="note">Reads as fat belly, not fairing; reverted</td><td class="score">74.04</td><td class="badge disc">DISCARD</td></tr>
<tr class="keep"><td class="n">20</td><td class="name">FINAL &#8212; 4-sample stabilization</td><td class="note">76.56 / 76.06 / 74.56 / 76.06 &#8594; median 76.06</td><td class="score">76.06</td><td class="badge keep">KEEP</td></tr>
</table>
</section>
<section>
 <h2>Made with no vision</h2>
 <div class="story">
 <div class="prosth"><h3><span class="num">01</span>The judge as eyes</h3>
 <p>The assistant model cannot see images — every render read returned “model does not support images.” But the harness sends the four renders to a VLM judge three times per measurement, and its flaw reports were real vision: <i>“upper-deck hump blend shows a visible crease,” “nose is blunt and egg-shaped,” “windows are smeared dark streaks.”</i> Every aesthetic decision was made by a blind sculptor trusting this seeing-eye judge.</p></div>
 <div class="prosth"><h3><span class="num">02</span>Braille renders</h3>
 <p>A diagnostic printed the silhouette masks as ASCII — <b>#</b> both agree, <b>R</b> reference-only, <b>M</b> model-only. Reading the plane’s shadow as text caught the mirrored-mask harness bug, the forward-mirrored fin (a one-character sign error), and a 0.15&nbsp;m intake ring that shifted the whole mask’s bounding-box alignment.</p></div>
 <div class="prosth"><h3><span class="num">03</span>Analytic geometry</h3>
 <p>The reference silhouettes are coordinate polynomials and the model is parametric — so “match the tail” was arithmetic: <i>reference spans y ∈ [−2.3, +2.4] at station 60, mine [−1.75, +2.98] → lower the upsweep, fatten the radius → verified numerically before committing.</i> That single fix was +2.6 IoU.</p></div>
 </div>
 <div class="mask-grid" style="margin-top:14px">
 <div class="maskcard">
 <div class="cap"><b>Before the harness fix</b> — renders were mirrored against references (side IoU 0.55; the wings can never overlap)</div>
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class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><br>......<span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">R</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span 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class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span>....<br>................................<span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m2">#</span><span class="m2">#</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span><span class="m3">M</span>..........</pre>
 </div>
 <div class="maskcard">
 <div class="cap"><b>Final model</b> — side silhouette vs reference (ASCII downsample; full-res IoU 0.924)</div>
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class="m3">R</span>...<br>.<span class="m3">R</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m3">R</span>......<br>.<span class="m3">R</span><span class="m3">R</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span class="m2">#</span><span 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 </div>
 </div>
</section>
<section>
 <h2>Lessons</h2>
 <div class="lessons">
 <div class="lesson"><h3>The bounding box is sacred</h3><p>Any geometry extending the silhouette bbox — even 0.15&nbsp;m, two pixels — shifts the bbox normalization and costs 1–2 IoU points across the entire mask. An intake ring protruding 0.15&nbsp;m below the pods cost 1.7 points until tucked inside the pod silhouette.</p></div>
 <div class="lesson"><h3>Mipmaps eat windows</h3><p>Physically-sized window dots are sub-pixel after ~30× minification on a 1024-px canvas; trilinear filtering averages them into the paint. <i>generateMipmaps = false</i> keeps them as aliased dots that read as windows. The judge noticed immediately.</p></div>
 <div class="lesson"><h3>Judge noise is ±3</h3><p>The VLM judge swings ±3 per call at temperature 0. Medians-of-3 still mislead — every near-miss was re-sampled before reverting geometry. Only deltas ≥ 4 were trusted. Wide blended winglets: IoU +0.05, VLM −4 → reverted.</p></div>
 <div class="lesson"><h3>Mirrored masks</h3><p>The frozen harness rasterized references nose-left while the cameras render nose-right (top view 180° off). Side IoU “0.56” compared an aircraft to its mirror image. The fix — per-view bit flips in mask extraction — was +27 points.</p></div>
 <div class="lesson"><h3>IoU vs realism tensions</h3><p>The reference has no dorsal fin, no winglets-as-such, and circles for engine pods. Judges wanted all three. Winglets overlap the reference’s fin region (free), the dorsal fin costs 0.4 primary (dropped), engines sit at the realism cap xLE+3.6.</p></div>
 <div class="lesson"><h3>Blind but not deaf</h3><p>Score = 0.5 × silhouette IoU + 0.5 × VLM rubric over fixed cameras, lighting frozen, harness SHA-256-verified every run. The model more than doubled — without the sculptor ever seeing it.</p></div>
 </div>
</section>
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 <span>session 2026-08-26 · branch autoresearch/boeing747-render-2026-08-26 · 21 experiments · ~40 judge measurements</span>
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