diff --git a/docs/gallery/assets/bake-normal-high-to-low-hero.webp b/docs/gallery/assets/bake-normal-high-to-low-hero.webp
index bda5faac..ded2aec7 100644
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diff --git a/docs/gallery/assets/lightmap-uv-channel-hero.webp b/docs/gallery/assets/lightmap-uv-channel-hero.webp
index 022c028e..23d9e99d 100644
Binary files a/docs/gallery/assets/lightmap-uv-channel-hero.webp and b/docs/gallery/assets/lightmap-uv-channel-hero.webp differ
diff --git a/docs/gallery/bake-normal-high-to-low/index.html b/docs/gallery/bake-normal-high-to-low/index.html
index a7882dfe..312842b8 100644
--- a/docs/gallery/bake-normal-high-to-low/index.html
+++ b/docs/gallery/bake-normal-high-to-low/index.html
@@ -16,13 +16,13 @@
   <meta property="og:image" content="https://tmhsdigital.github.io/Blender-Developer-Tools/gallery/assets/bake-normal-high-to-low-hero.webp" />
   <meta property="og:image:width" content="1280" />
   <meta property="og:image:height" content="720" />
-  <meta property="og:image:alt" content="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern." />
+  <meta property="og:image:alt" content="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths." />
   <meta property="og:site_name" content="Blender Developer Tools" />
   <meta name="twitter:card" content="summary_large_image" />
   <meta name="twitter:title" content="bake-normal-high-to-low — Examples — Blender Developer Tools" />
   <meta name="twitter:description" content="A collapse-decimated hatch plate receiving a Cycles cage-baked tangent normal map from a ribbed high-poly source" />
   <meta name="twitter:image" content="https://tmhsdigital.github.io/Blender-Developer-Tools/gallery/assets/bake-normal-high-to-low-hero.webp" />
-  <meta name="twitter:image:alt" content="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern." />
+  <meta name="twitter:image:alt" content="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths." />
   <style>
     /* fonts are deployed by the landing build (docs/fonts/) */
     @font-face { font-family: 'Barlow Condensed'; font-weight: 600; font-display: swap;
@@ -268,8 +268,8 @@ <h1>bake-normal-high-to-low</h1>
     <p>A collapse-decimated hatch plate receiving a Cycles cage-baked tangent normal map from a ribbed high-poly source</p>
   </header>
   <main id="main">
-    <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern.">
-      <img src="../assets/bake-normal-high-to-low-hero.webp" alt="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern." width="1280" height="720" />
+    <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths.">
+      <img src="../assets/bake-normal-high-to-low-hero.webp" alt="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths." width="1280" height="720" />
     </button>
     <p class="zoom-hint">Rendered headless by the example itself — click to zoom.</p>
     <div class="callout"><span class="tag">witnesses</span> Statistical gates not byte-identity: detail frac 0.7211 / MAD 0.09356 vs flat 0.0000 / 0.00277; --flat-source exits 5; type=NORMAL not bake_type; RNA identical on 4.5.11, 5.1.2, 5.2.1</div>
@@ -284,6 +284,7 @@ <h1>bake-normal-high-to-low</h1>
 <ul><li><strong>Detail bake is not flat.</strong> <code>frac &gt;= 0.40</code> and <code>MAD &gt;= 0.05</code> (measured 0.7211 / 0.09356 on 4.5.11, 5.1.2, and 5.2.1). Catches an inactive Image Texture node, reversed selection, or EEVEE/GPU mis-setup that writes a blank map. MAD floor is half the measured hatch value, still ~30× a flat bake.</li><li><strong>Flat control is flat.</strong> <code>frac &lt;= 0.05</code> and <code>MAD &lt;= 0.03</code> (measured 0.0000 / 0.00277). Catches a noisy or wrongly-typed bake that would also satisfy the detail gates.</li><li><strong>Monotonic gap.</strong> <code>detail_frac - flat_frac &gt;= 0.30</code>. The two maps must separate; a tolerance wide enough to pass both would have no discriminating power.</li><li><strong><code>--flat-source</code> is the falsifier.</strong> Skips the ribs and still runs the detail gates. Must exit 5. Analogous to <code>--same-axis</code> in <a href="https://github.com/TMHSDigital/Blender-Developer-Tools/tree/main/examples/export-preset-axis"><code>export-preset-axis</code></a>.</li></ul>
 <p>Neighbor of <a href="https://github.com/TMHSDigital/Blender-Developer-Tools/tree/main/examples/lod-decimate-chain"><code>lod-decimate-chain</code></a> (the LOD is the cage target; collapse keeps UVs) and <a href="https://github.com/TMHSDigital/Blender-Developer-Tools/tree/main/examples/image-pixels-testcard"><code>image-pixels-testcard</code></a> (<code>save_render</code>, not <code>Image.save()</code>, if you persist the datablock). UV transfer and atlas packing are out of scope.</p>
 <p>The still stages the baked map as an unlit card beside the LOD wearing it. If the bake were flat, the card would be uniform <code>(128, 128, 255)</code> periwinkle and the plate would shade like the undisplaced cage.</p>
+<p>Staging is render-only. Each panel stands in a low display plinth, lifted so its lowest evaluated point sits 35 mm in the slot. Both panels used to balance on an edge, and the leaning plate pierced the floor. The solidify rim wears plain bronze instead of the baked map. The slight waviness along the plate&#x27;s border is the bake itself, normal-map shading inside the UV margin, and is left as the map produces it. Bake statistics are unchanged: frac 0.7211, MAD 0.09356 on all three binaries.</p>
 <p>Operator RNA (<code>type=&#x27;NORMAL&#x27;</code>, <code>use_selected_to_active</code>, <code>cage_extrusion</code>, <code>cage_object</code> as a string, <code>normal_space=&#x27;TANGENT&#x27;</code>, <code>margin_type</code>) is identical on 4.5.11, 5.1.2, and 5.2.1 — no shim.</p>
 <h2>Run</h2>
 <pre><code># Cheap correctness check (no render) - the CI check:
@@ -686,6 +687,55 @@ <h2>Source</h2>
     <span class="k">return</span> ob
 
 
+PLINTH_H = <span class="n">0.10</span>
+PLINTH_SEAT = <span class="n">0.035</span>
+PLINTH_PAD = <span class="n">0.08</span>
+
+
+<span class="k">def</span> seat_on_plinth(ob, name):
+    <span class="s">&quot;&quot;&quot;Stand a display panel in a low plinth by its own lowest point.
+
+    Render-only staging. The panel is lifted so its lowest evaluated vertex
+    sits PLINTH_SEAT inside a dark slab sized from the panel&#x27;s footprint.
+    Both panels used to balance on an edge, and the leaning plate&#x27;s lower
+    edge pierced the floor.
+    &quot;&quot;&quot;</span>
+    bpy.context.view_layer.update()
+    dg = bpy.context.evaluated_depsgraph_get()
+    ev = ob.evaluated_get(dg)
+    me = ev.to_mesh()
+    <span class="k">try</span>:
+        pts = [ev.matrix_world @ v.co <span class="k">for</span> v <span class="k">in</span> me.vertices]
+    <span class="k">finally</span>:
+        ev.to_mesh_clear()
+    ob.location.z += (PLINTH_H - PLINTH_SEAT) - min(p.z <span class="k">for</span> p <span class="k">in</span> pts)
+    base = [p <span class="k">for</span> p <span class="k">in</span> pts <span class="k">if</span> p.z &lt; min(q.z <span class="k">for</span> q <span class="k">in</span> pts) + <span class="n">0.15</span>]
+    x0 = min(p.x <span class="k">for</span> p <span class="k">in</span> base) - PLINTH_PAD
+    x1 = max(p.x <span class="k">for</span> p <span class="k">in</span> base) + PLINTH_PAD
+    y0 = min(p.y <span class="k">for</span> p <span class="k">in</span> base) - PLINTH_PAD
+    y1 = max(p.y <span class="k">for</span> p <span class="k">in</span> base) + PLINTH_PAD
+    slab = bpy.data.meshes.new(name)
+    bm = bmesh.new()
+    <span class="k">try</span>:
+        bmesh.ops.create_cube(bm, size=<span class="n">1.0</span>)
+        <span class="k">for</span> v <span class="k">in</span> bm.verts:
+            v.co.x = (x0 + x1) / <span class="n">2</span> + v.co.x * (x1 - x0)
+            v.co.y = (y0 + y1) / <span class="n">2</span> + v.co.y * (y1 - y0)
+            v.co.z = PLINTH_H / <span class="n">2</span> + v.co.z * PLINTH_H
+        bmesh.ops.bevel(bm, geom=list(bm.edges), offset=<span class="n">0.012</span>, segments=<span class="n">2</span>,
+                        affect=<span class="s">&quot;EDGES&quot;</span>, clamp_overlap=<span class="k">True</span>)
+        bm.to_mesh(slab)
+    <span class="k">finally</span>:
+        bm.free()
+    pmat = bpy.data.materials.new(name + <span class="s">&quot;Mat&quot;</span>)
+    pmat.use_nodes = <span class="k">True</span>
+    paint_principled(pmat, (<span class="n">0.045</span>, <span class="n">0.042</span>, <span class="n">0.04</span>, <span class="n">1.0</span>), <span class="n">0.0</span>, <span class="n">0.55</span>)
+    slab.materials.append(pmat)
+    plinth = bpy.data.objects.new(name, slab)
+    bpy.context.scene.collection.objects.link(plinth)
+    <span class="k">return</span> plinth
+
+
 <span class="k">def</span> render_still(low, mat, tex, path, engine):
     scene = bpy.context.scene
     <span class="k">for</span> ob <span class="k">in</span> list(scene.objects):
@@ -694,13 +744,22 @@ <h2>Source</h2>
             ob.hide_viewport = <span class="k">True</span>
 
     wire_normal_map(mat, tex)
+    <span class="c"># The solidify rim is the plate&#x27;s edge, not baked surface: give it plain</span>
+    <span class="c"># bronze. Wearing the map, it sampled the UV border and rendered ragged.</span>
+    rim = bpy.data.materials.new(<span class="s">&quot;BronzeRim&quot;</span>)
+    rim.use_nodes = <span class="k">True</span>
+    paint_principled(rim, (<span class="n">0.22</span>, <span class="n">0.13</span>, <span class="n">0.07</span>, <span class="n">1.0</span>), <span class="n">0.58</span>, <span class="n">0.44</span>)
+    low.data.materials.append(rim)
     solid = low.modifiers.new(<span class="s">&quot;SolidifyDisplay&quot;</span>, <span class="s">&quot;SOLIDIFY&quot;</span>)
     solid.thickness = THICKNESS
     solid.offset = <span class="n">1.0</span>
+    solid.material_offset_rim = <span class="n">1</span>
     low.rotation_euler.x = math.radians(<span class="n">72.0</span>)
     low.location = (<span class="n">1.20</span>, <span class="n">0.0</span>, <span class="n">1.05</span>)
     card = make_map_card(tex.image)
     card.location = (-<span class="n">1.50</span>, <span class="n">0.0</span>, <span class="n">1.05</span>)
+    plinths = [seat_on_plinth(ob, name) <span class="k">for</span> ob, name <span class="k">in</span>
+               ((card, <span class="s">&quot;CardPlinth&quot;</span>), (low, <span class="s">&quot;PlatePlinth&quot;</span>))]
 
     floor_me = bpy.data.meshes.new(<span class="s">&quot;Floor&quot;</span>)
     bm = bmesh.new()
@@ -780,7 +839,7 @@ <h2>Source</h2>
         scene,
         cam,
         hero=[card, low],
-        elements=[card, low],
+        elements=[card, low] + plinths,
         stage=[floor, wall],
     )
     <span class="k">if</span> fcode:
@@ -840,7 +899,7 @@ <h2>Source</h2>
   </main>
   <dialog class="lightbox" id="lightbox" aria-label="Full-size render">
     <button class="lightbox-close" type="button" autofocus>Close</button>
-    <img src="../assets/bake-normal-high-to-low-hero.webp" alt="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern." />
+    <img src="../assets/bake-normal-high-to-low-hero.webp" alt="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths." />
   </dialog>
   <footer>
     <div class="statusbar">
diff --git a/docs/gallery/contact-sheets/bake-normal-high-to-low-contact-sheet.webp b/docs/gallery/contact-sheets/bake-normal-high-to-low-contact-sheet.webp
index 65a127be..4bf27c65 100644
Binary files a/docs/gallery/contact-sheets/bake-normal-high-to-low-contact-sheet.webp and b/docs/gallery/contact-sheets/bake-normal-high-to-low-contact-sheet.webp differ
diff --git a/docs/gallery/contact-sheets/lightmap-uv-channel-contact-sheet.webp b/docs/gallery/contact-sheets/lightmap-uv-channel-contact-sheet.webp
new file mode 100644
index 00000000..34f9f28c
Binary files /dev/null and b/docs/gallery/contact-sheets/lightmap-uv-channel-contact-sheet.webp differ
diff --git a/docs/gallery/index.html b/docs/gallery/index.html
index 4974f724..a45c1ef7 100644
--- a/docs/gallery/index.html
+++ b/docs/gallery/index.html
@@ -816,7 +816,7 @@ <h2><a href="modular-kit-snap/">modular-kit-snap</a></h2>
       </article>
       <article class="card" data-tags="uv game-pipeline rendering">
         <a class="card-media" href="lightmap-uv-channel/" tabindex="-1" aria-hidden="true">
-          <img src="assets/lightmap-uv-channel-hero.webp" alt="A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands." loading="lazy" decoding="async" />
+          <img src="assets/lightmap-uv-channel-hero.webp" alt="A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands." loading="lazy" decoding="async" />
         </a>
         <div class="card-body">
           <h2><a href="lightmap-uv-channel/">lightmap-uv-channel</a></h2>
@@ -882,7 +882,7 @@ <h2><a href="gn-zone-iterate/">gn-zone-iterate</a></h2>
       </article>
       <article class="card" data-tags="mesh">
         <a class="card-media" href="bake-normal-high-to-low/" tabindex="-1" aria-hidden="true">
-          <img src="assets/bake-normal-high-to-low-hero.webp" alt="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern." loading="lazy" decoding="async" />
+          <img src="assets/bake-normal-high-to-low-hero.webp" alt="A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths." loading="lazy" decoding="async" />
         </a>
         <div class="card-body">
           <h2><a href="bake-normal-high-to-low/">bake-normal-high-to-low</a></h2>
diff --git a/docs/gallery/lightmap-uv-channel/index.html b/docs/gallery/lightmap-uv-channel/index.html
index 2f41ce21..0e502c4a 100644
--- a/docs/gallery/lightmap-uv-channel/index.html
+++ b/docs/gallery/lightmap-uv-channel/index.html
@@ -16,13 +16,13 @@
   <meta property="og:image" content="https://tmhsdigital.github.io/Blender-Developer-Tools/gallery/assets/lightmap-uv-channel-hero.webp" />
   <meta property="og:image:width" content="1280" />
   <meta property="og:image:height" content="720" />
-  <meta property="og:image:alt" content="A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands." />
+  <meta property="og:image:alt" content="A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands." />
   <meta property="og:site_name" content="Blender Developer Tools" />
   <meta name="twitter:card" content="summary_large_image" />
   <meta name="twitter:title" content="lightmap-uv-channel — Examples — Blender Developer Tools" />
   <meta name="twitter:description" content="A market cart carrying the two-channel UV contract for baked lighting: UV0 untouched, UVLight packed with no overlaps and a respected margin." />
   <meta name="twitter:image" content="https://tmhsdigital.github.io/Blender-Developer-Tools/gallery/assets/lightmap-uv-channel-hero.webp" />
-  <meta name="twitter:image:alt" content="A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands." />
+  <meta name="twitter:image:alt" content="A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands." />
   <style>
     /* fonts are deployed by the landing build (docs/fonts/) */
     @font-face { font-family: 'Barlow Condensed'; font-weight: 600; font-display: swap;
@@ -268,8 +268,8 @@ <h1>lightmap-uv-channel</h1>
     <p>A market cart carrying the two-channel UV contract for baked lighting: UV0 untouched, UVLight packed with no overlaps and a respected margin.</p>
   </header>
   <main id="main">
-    <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands.">
-      <img src="../assets/lightmap-uv-channel-hero.webp" alt="A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands." width="1280" height="720" />
+    <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands.">
+      <img src="../assets/lightmap-uv-channel-hero.webp" alt="A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands." width="1280" height="720" />
     </button>
     <p class="zoom-hint">Rendered headless by the example itself — click to zoom.</p>
     <div class="callout"><span class="tag">witnesses</span> Per-part UVMap/UVLight with active vs active_render pinned (ops clear both flags), UV0 drift 0.0, 3680 islands with 0 SAT overlaps, min island distance 0.00401.</div>
@@ -278,7 +278,7 @@ <h1>lightmap-uv-channel</h1>
       <button class="copy-btn" id="copyRun" type="button">Copy</button>
     </div>
     <section class="detail-section md">
-<p>A runnable example building the second UV layer engines require for baked lighting, on an asset built to be reused: a market cart assembled from 21 named, watertight parts — a plank-grooved bed with side rails, corner brackets, and fasteners, real wheel assemblies (disc + hub + iron band + bolt ring) on a capped axle, four posts, and a ribbed canvas canopy. Ground-level pivot at <code>z=0</code>, identity transforms by construction, <code>Cart.*</code> datablocks. (An earlier revision shipped a soft uniform-tan cart with lumpy polygon wheels and was remodeled under the asset-quality gate; its wheel material was also silently never applied — a name-key lookup bug the exact per-part mapping now replaces.) UV0 is the texture channel (deterministic dominant-axis box projection per face); UVLight is the baked-lighting atlas (<code>smart_project</code> → <code>lightmap_pack</code>).</p>
+<p>A runnable example building the second UV layer engines require for baked lighting, on an asset built to be reused: a market cart assembled from 21 named, watertight parts — a plank-grooved bed with side rails, corner brackets, and fasteners, real wheel assemblies (disc + hub + iron band + bolt ring) on a capped axle, four posts, and a ribbed canvas canopy. Each post rises from inside the bed into the canopy&#x27;s underside, its top sheared to the arc at its own station for a uniform 12 mm bite. Fixed 1.35 m posts used to stop 0.33 m short of the arc, so the canopy floated. The UV1 contract is unchanged: every part keeps its island count, zero overlap and minimum island distance. Ground-level pivot at <code>z=0</code>, identity transforms by construction, <code>Cart.*</code> datablocks. (An earlier revision shipped a soft uniform-tan cart with lumpy polygon wheels and was remodeled under the asset-quality gate; its wheel material was also silently never applied — a name-key lookup bug the exact per-part mapping now replaces.) UV0 is the texture channel (deterministic dominant-axis box projection per face); UVLight is the baked-lighting atlas (<code>smart_project</code> → <code>lightmap_pack</code>).</p>
 <p><strong>What it witnesses</strong> (all independently derived, nothing trusted from the packer):</p>
 <ul><li><strong>The flag trap.</strong> <code>uv_layers.new()</code> does <strong>not</strong> move the active flags — the first layer keeps <code>active</code> + <code>active_render</code>, so a UV op runs against channel 0 unless you move <code>active</code> yourself (probed: unwrap+pack with the flags unmoved destroys channel 0, measured drift <strong>2.068</strong>). Worse, the edit-mode UV ops <strong>clear both flags</strong> — the sequence must re-assert them. The check pins, per part: exactly two layers <code>UVMap</code>/<code>UVLight</code>, <code>active == UVLight</code> (edit target), <code>active_render == UVMap</code> (render target).</li><li><strong>Channel zero untouched.</strong> UV0 loops snapshotted before the UVLight unwrap, compared after: drift <strong>0.0</strong> on every part (tol 1e-6).</li><li><strong>Bounds.</strong> Every UVLight loop inside <code>[0, 1]</code> within 1e-5.</li><li><strong>Non-overlap.</strong> UV1 triangles binned into a 256² spatial hash and tested pairwise with strict SAT (epsilon-separated, so shared edges don&#x27;t count): <strong>0</strong> overlapping pairs.</li><li><strong>Margin.</strong> <code>MARGIN_DIV</code> semantics measured live: nominal margin == <code>MARGIN_DIV × 0.01</code> UV units; the check requires the measured min island-pair distance ≥ half the nominal — measured <strong>0.00401</strong> (≈ 2× the nominal 0.002, the packer&#x27;s per-island margin applied twice).</li><li><strong>Island census + watertight parts.</strong> Connected components counted independently per part; loops conserved; every part manifold.</li></ul>
 <p><strong>What each check catches on failure:</strong> wrong layer names/count (exit 3); flags not re-established after the ops (exit 4); channel 0 touched by the UV1 unwrap (exit 5 — probed via the clobber trap, drift 2.068); UV1 loops outside the unit square (exit 6); overlapping islands (exit 7 — probed by translating an island onto a neighbor, 15 SAT hits); margin floor broken (exit 8 — probed with <code>MARGIN_DIV=0</code>, measured 2e-5 &lt; 0.001); non-watertight part (exit 9).</p>
@@ -577,11 +577,26 @@ <h2>Source</h2>
             <span class="s">f&quot;</span><span class="s">Cart.Wheel.</span>{tag}<span class="s">.Band</span><span class="s">&quot;</span>, <span class="n">0.47</span>, <span class="n">0.435</span>, <span class="n">0.10</span>, (<span class="n">0.55</span>, y, <span class="n">0.45</span>))
         parts[<span class="s">f&quot;</span><span class="s">Wheel.</span>{tag}<span class="s">.Bolts</span><span class="s">&quot;</span>] = _bolt_ring(
             <span class="s">f&quot;</span><span class="s">Cart.Wheel.</span>{tag}<span class="s">.Bolts</span><span class="s">&quot;</span>, <span class="n">6</span>, <span class="n">0.09</span>, <span class="n">0.02</span>, (<span class="n">0.55</span>, y + sy * <span class="n">0.085</span>, <span class="n">0.45</span>))
+    <span class="c"># Each post runs from inside the bed up into the canopy&#x27;s underside at</span>
+    <span class="c"># its own station, read off the canopy arc. A fixed 1.35 m post stopped</span>
+    <span class="c"># 0.33 m short of the arc, so the canopy floated over four sticks.</span>
+    <span class="c"># The top is sheared to follow the arc, so the bite is the same across</span>
+    <span class="c"># the post&#x27;s width rather than deep on one side and open on the other.</span>
+    canopy_z0, canopy_r, canopy_t, post_bite = <span class="n">1.9</span>, <span class="n">0.85</span>, <span class="n">0.04</span>, <span class="n">0.012</span>
+    post_z0 = <span class="n">0.875</span>
+    r_in = canopy_r - canopy_t
     <span class="k">for</span> tag, (px, py) <span class="k">in</span> ((<span class="s">&quot;FL&quot;</span>, (<span class="n">0.95</span>, <span class="n">0.48</span>)), (<span class="s">&quot;FR&quot;</span>, (<span class="n">0.95</span>, -<span class="n">0.48</span>)),
                           (<span class="s">&quot;RL&quot;</span>, (-<span class="n">0.95</span>, <span class="n">0.48</span>)), (<span class="s">&quot;RR&quot;</span>, (-<span class="n">0.95</span>, -<span class="n">0.48</span>))):
-        parts[<span class="s">f&quot;</span><span class="s">Post.</span>{tag}<span class="s">&quot;</span>] = _box(<span class="s">f&quot;</span><span class="s">Cart.Post.</span>{tag}<span class="s">&quot;</span>, (<span class="n">0.09</span>, <span class="n">0.09</span>, <span class="n">1.35</span>),
-                                    (px, py, <span class="n">1.55</span>), <span class="n">0.015</span>)
-    parts[<span class="s">&quot;Canopy&quot;</span>] = _canopy(<span class="s">&quot;Cart.Canopy&quot;</span>, <span class="n">2.3</span>, <span class="n">0.85</span>, <span class="n">0.04</span>, <span class="n">1.9</span>)
+        top = canopy_z0 + math.sqrt(r_in * r_in - py * py) + post_bite
+        me = _box(<span class="s">f&quot;</span><span class="s">Cart.Post.</span>{tag}<span class="s">&quot;</span>, (<span class="n">0.09</span>, <span class="n">0.09</span>, top - post_z0),
+                  (px, py, <span class="n">0.5</span> * (post_z0 + top)), <span class="n">0.015</span>)
+        <span class="k">for</span> v <span class="k">in</span> me.vertices:
+            <span class="k">if</span> v.co.z &gt; top - <span class="n">0.05</span>:
+                arc = canopy_z0 + math.sqrt(r_in * r_in - v.co.y * v.co.y) + post_bite
+                v.co.z += arc - top
+        me.update()
+        parts[<span class="s">f&quot;</span><span class="s">Post.</span>{tag}<span class="s">&quot;</span>] = me
+    parts[<span class="s">&quot;Canopy&quot;</span>] = _canopy(<span class="s">&quot;Cart.Canopy&quot;</span>, <span class="n">2.3</span>, canopy_r, canopy_t, canopy_z0)
     parts[<span class="s">&quot;Canopy.Ribs&quot;</span>] = _canopy_ribs(<span class="s">&quot;Cart.Canopy.Ribs&quot;</span>, (-<span class="n">0.75</span>, <span class="n">0.0</span>, <span class="n">0.75</span>),
                                         <span class="n">0.07</span>, <span class="n">0.875</span>, <span class="n">0.035</span>, <span class="n">1.9</span>)
     <span class="k">return</span> parts
@@ -1145,7 +1160,7 @@ <h2>Source</h2>
   </main>
   <dialog class="lightbox" id="lightbox" aria-label="Full-size render">
     <button class="lightbox-close" type="button" autofocus>Close</button>
-    <img src="../assets/lightmap-uv-channel-hero.webp" alt="A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands." />
+    <img src="../assets/lightmap-uv-channel-hero.webp" alt="A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands." />
   </dialog>
   <footer>
     <div class="statusbar">
diff --git a/examples/bake-normal-high-to-low/README.md b/examples/bake-normal-high-to-low/README.md
index 981061c5..0e7d1b35 100644
--- a/examples/bake-normal-high-to-low/README.md
+++ b/examples/bake-normal-high-to-low/README.md
@@ -41,6 +41,14 @@ The still stages the baked map as an unlit card beside the LOD wearing it.
 If the bake were flat, the card would be uniform `(128, 128, 255)` periwinkle
 and the plate would shade like the undisplaced cage.
 
+Staging is render-only. Each panel stands in a low display plinth, lifted
+so its lowest evaluated point sits 35 mm in the slot. Both panels used to
+balance on an edge, and the leaning plate pierced the floor. The
+solidify rim wears plain bronze instead of the baked map. The slight
+waviness along the plate's border is the bake itself, normal-map shading
+inside the UV margin, and is left as the map produces it. Bake
+statistics are unchanged: frac 0.7211, MAD 0.09356 on all three binaries.
+
 Operator RNA (`type='NORMAL'`, `use_selected_to_active`, `cage_extrusion`,
 `cage_object` as a string, `normal_space='TANGENT'`, `margin_type`) is
 identical on 4.5.11, 5.1.2, and 5.2.1 — no shim.
diff --git a/examples/bake-normal-high-to-low/bake_normal_high_to_low.py b/examples/bake-normal-high-to-low/bake_normal_high_to_low.py
index 0959446f..8eb20edc 100644
--- a/examples/bake-normal-high-to-low/bake_normal_high_to_low.py
+++ b/examples/bake-normal-high-to-low/bake_normal_high_to_low.py
@@ -378,6 +378,55 @@ def make_map_card(image, name="BakeCard"):
     return ob
 
 
+PLINTH_H = 0.10
+PLINTH_SEAT = 0.035
+PLINTH_PAD = 0.08
+
+
+def seat_on_plinth(ob, name):
+    """Stand a display panel in a low plinth by its own lowest point.
+
+    Render-only staging. The panel is lifted so its lowest evaluated vertex
+    sits PLINTH_SEAT inside a dark slab sized from the panel's footprint.
+    Both panels used to balance on an edge, and the leaning plate's lower
+    edge pierced the floor.
+    """
+    bpy.context.view_layer.update()
+    dg = bpy.context.evaluated_depsgraph_get()
+    ev = ob.evaluated_get(dg)
+    me = ev.to_mesh()
+    try:
+        pts = [ev.matrix_world @ v.co for v in me.vertices]
+    finally:
+        ev.to_mesh_clear()
+    ob.location.z += (PLINTH_H - PLINTH_SEAT) - min(p.z for p in pts)
+    base = [p for p in pts if p.z < min(q.z for q in pts) + 0.15]
+    x0 = min(p.x for p in base) - PLINTH_PAD
+    x1 = max(p.x for p in base) + PLINTH_PAD
+    y0 = min(p.y for p in base) - PLINTH_PAD
+    y1 = max(p.y for p in base) + PLINTH_PAD
+    slab = bpy.data.meshes.new(name)
+    bm = bmesh.new()
+    try:
+        bmesh.ops.create_cube(bm, size=1.0)
+        for v in bm.verts:
+            v.co.x = (x0 + x1) / 2 + v.co.x * (x1 - x0)
+            v.co.y = (y0 + y1) / 2 + v.co.y * (y1 - y0)
+            v.co.z = PLINTH_H / 2 + v.co.z * PLINTH_H
+        bmesh.ops.bevel(bm, geom=list(bm.edges), offset=0.012, segments=2,
+                        affect="EDGES", clamp_overlap=True)
+        bm.to_mesh(slab)
+    finally:
+        bm.free()
+    pmat = bpy.data.materials.new(name + "Mat")
+    pmat.use_nodes = True
+    paint_principled(pmat, (0.045, 0.042, 0.04, 1.0), 0.0, 0.55)
+    slab.materials.append(pmat)
+    plinth = bpy.data.objects.new(name, slab)
+    bpy.context.scene.collection.objects.link(plinth)
+    return plinth
+
+
 def render_still(low, mat, tex, path, engine):
     scene = bpy.context.scene
     for ob in list(scene.objects):
@@ -386,13 +435,22 @@ def render_still(low, mat, tex, path, engine):
             ob.hide_viewport = True
 
     wire_normal_map(mat, tex)
+    # The solidify rim is the plate's edge, not baked surface: give it plain
+    # bronze. Wearing the map, it sampled the UV border and rendered ragged.
+    rim = bpy.data.materials.new("BronzeRim")
+    rim.use_nodes = True
+    paint_principled(rim, (0.22, 0.13, 0.07, 1.0), 0.58, 0.44)
+    low.data.materials.append(rim)
     solid = low.modifiers.new("SolidifyDisplay", "SOLIDIFY")
     solid.thickness = THICKNESS
     solid.offset = 1.0
+    solid.material_offset_rim = 1
     low.rotation_euler.x = math.radians(72.0)
     low.location = (1.20, 0.0, 1.05)
     card = make_map_card(tex.image)
     card.location = (-1.50, 0.0, 1.05)
+    plinths = [seat_on_plinth(ob, name) for ob, name in
+               ((card, "CardPlinth"), (low, "PlatePlinth"))]
 
     floor_me = bpy.data.meshes.new("Floor")
     bm = bmesh.new()
@@ -472,7 +530,7 @@ def light(name, loc, energy, size, col, rot):
         scene,
         cam,
         hero=[card, low],
-        elements=[card, low],
+        elements=[card, low] + plinths,
         stage=[floor, wall],
     )
     if fcode:
diff --git a/examples/bake-normal-high-to-low/preview.webp b/examples/bake-normal-high-to-low/preview.webp
index be76ca54..fccc5da1 100644
Binary files a/examples/bake-normal-high-to-low/preview.webp and b/examples/bake-normal-high-to-low/preview.webp differ
diff --git a/examples/gallery.json b/examples/gallery.json
index b3206d7f..2adf7f31 100644
--- a/examples/gallery.json
+++ b/examples/gallery.json
@@ -588,7 +588,7 @@
       "name": "lightmap-uv-channel",
       "dir": "examples/lightmap-uv-channel",
       "teaches": "A market cart carrying the two-channel UV contract for baked lighting: UV0 untouched, UVLight packed with no overlaps and a respected margin.",
-      "alt": "A wooden covered cart beside a board showing its packed lightmap UV atlas as coloured islands.",
+      "alt": "A wooden covered cart, its four posts carrying an arched canvas canopy, beside a board showing its packed lightmap UV atlas as coloured islands.",
       "witnessesFix": "Per-part UVMap/UVLight with active vs active_render pinned (ops clear both flags), UV0 drift 0.0, 3680 islands with 0 SAT overlaps, min island distance 0.00401.",
       "hero": "docs/gallery/assets/lightmap-uv-channel-hero.webp",
       "preview": "examples/lightmap-uv-channel/preview.webp",
@@ -670,7 +670,7 @@
       "name": "bake-normal-high-to-low",
       "dir": "examples/bake-normal-high-to-low",
       "teaches": "A collapse-decimated hatch plate receiving a Cycles cage-baked tangent normal map from a ribbed high-poly source",
-      "alt": "A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern.",
+      "alt": "A baked tangent-space normal map shown as a lilac card beside a bronze plate wearing it, with a radial embossed pattern, both standing in low display plinths.",
       "witnessesFix": "Statistical gates not byte-identity: detail frac 0.7211 / MAD 0.09356 vs flat 0.0000 / 0.00277; --flat-source exits 5; type=NORMAL not bake_type; RNA identical on 4.5.11, 5.1.2, 5.2.1",
       "hero": "docs/gallery/assets/bake-normal-high-to-low-hero.webp",
       "preview": "examples/bake-normal-high-to-low/preview.webp",
diff --git a/examples/lightmap-uv-channel/README.md b/examples/lightmap-uv-channel/README.md
index c68317e3..d025435c 100644
--- a/examples/lightmap-uv-channel/README.md
+++ b/examples/lightmap-uv-channel/README.md
@@ -4,7 +4,12 @@ A runnable example building the second UV layer engines require for baked
 lighting, on an asset built to be reused: a market cart assembled from
 21 named, watertight parts — a plank-grooved bed with side rails, corner
 brackets, and fasteners, real wheel assemblies (disc + hub + iron band +
-bolt ring) on a capped axle, four posts, and a ribbed canvas canopy.
+bolt ring) on a capped axle, four posts, and a ribbed canvas canopy. Each
+post rises from inside the bed into the canopy's underside, its top
+sheared to the arc at its own station for a uniform 12 mm bite. Fixed
+1.35 m posts used to stop 0.33 m short of the arc, so the canopy floated.
+The UV1 contract is unchanged: every part keeps its island count, zero
+overlap and minimum island distance.
 Ground-level pivot at `z=0`, identity transforms by construction, `Cart.*`
 datablocks. (An earlier revision shipped a soft uniform-tan cart with
 lumpy polygon wheels and was remodeled under the asset-quality gate;
diff --git a/examples/lightmap-uv-channel/lightmap_uv_channel.py b/examples/lightmap-uv-channel/lightmap_uv_channel.py
index 0a45e66d..cdffca5f 100644
--- a/examples/lightmap-uv-channel/lightmap_uv_channel.py
+++ b/examples/lightmap-uv-channel/lightmap_uv_channel.py
@@ -273,11 +273,26 @@ def build_cart_meshes():
             f"Cart.Wheel.{tag}.Band", 0.47, 0.435, 0.10, (0.55, y, 0.45))
         parts[f"Wheel.{tag}.Bolts"] = _bolt_ring(
             f"Cart.Wheel.{tag}.Bolts", 6, 0.09, 0.02, (0.55, y + sy * 0.085, 0.45))
+    # Each post runs from inside the bed up into the canopy's underside at
+    # its own station, read off the canopy arc. A fixed 1.35 m post stopped
+    # 0.33 m short of the arc, so the canopy floated over four sticks.
+    # The top is sheared to follow the arc, so the bite is the same across
+    # the post's width rather than deep on one side and open on the other.
+    canopy_z0, canopy_r, canopy_t, post_bite = 1.9, 0.85, 0.04, 0.012
+    post_z0 = 0.875
+    r_in = canopy_r - canopy_t
     for tag, (px, py) in (("FL", (0.95, 0.48)), ("FR", (0.95, -0.48)),
                           ("RL", (-0.95, 0.48)), ("RR", (-0.95, -0.48))):
-        parts[f"Post.{tag}"] = _box(f"Cart.Post.{tag}", (0.09, 0.09, 1.35),
-                                    (px, py, 1.55), 0.015)
-    parts["Canopy"] = _canopy("Cart.Canopy", 2.3, 0.85, 0.04, 1.9)
+        top = canopy_z0 + math.sqrt(r_in * r_in - py * py) + post_bite
+        me = _box(f"Cart.Post.{tag}", (0.09, 0.09, top - post_z0),
+                  (px, py, 0.5 * (post_z0 + top)), 0.015)
+        for v in me.vertices:
+            if v.co.z > top - 0.05:
+                arc = canopy_z0 + math.sqrt(r_in * r_in - v.co.y * v.co.y) + post_bite
+                v.co.z += arc - top
+        me.update()
+        parts[f"Post.{tag}"] = me
+    parts["Canopy"] = _canopy("Cart.Canopy", 2.3, canopy_r, canopy_t, canopy_z0)
     parts["Canopy.Ribs"] = _canopy_ribs("Cart.Canopy.Ribs", (-0.75, 0.0, 0.75),
                                         0.07, 0.875, 0.035, 1.9)
     return parts
diff --git a/examples/lightmap-uv-channel/preview.webp b/examples/lightmap-uv-channel/preview.webp
index 3defe797..71c8f4cc 100644
Binary files a/examples/lightmap-uv-channel/preview.webp and b/examples/lightmap-uv-channel/preview.webp differ