From 0f03e1759aaa6100b98357dafcc9bc134c3d262d Mon Sep 17 00:00:00 2001
From: Anton Afanasyeu <a.afanasieff@gmail.com>
Date: Wed, 5 Aug 2026 17:34:07 +0200
Subject: [PATCH] globe3d=11: v10 grid + visible-hemisphere continent wrap

Sample ortho hub continents with grey-blue pixel test, mercator-flat
fallback for rotated longitudes; same LIMB_Z cull as v10 grid ellipses.

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 assets/hub-globe.js | 57 +++++++++++++++++++++++++++++++++++++++++----
 index.php           |  2 +-
 2 files changed, 54 insertions(+), 5 deletions(-)

diff --git a/assets/hub-globe.js b/assets/hub-globe.js
index 36f9bee..59023a2 100644
--- a/assets/hub-globe.js
+++ b/assets/hub-globe.js
@@ -11,6 +11,7 @@
  * globe3d=8: hub SVG ellipse trace (breaks under rotation — deprecated).
  * globe3d=9: v4 sphere grid only (thin E–W + N–S) — proper rotation baseline.
  * globe3d=10: v4 visible-arc → screen ellipse (hub ry), disk-clipped.
+ * globe3d=11: v10 grid + visible-hemisphere continent wrap (ortho hub + mercator flat).
  */
 export const GLOBE_VIEW = { imgW: 1920, imgH: 1080, cx: 720, cy: 560, r: 322, rim: 330 };
 
@@ -830,7 +831,7 @@ function drawGlobeGrid(ctx, cx, cy, r, rotY, layoutScale, renderVersion) {
     drawSphereGrid(ctx, cx, cy, r, rotY, layoutScale, { parallelsOnly: false });
     return;
   }
-  if (renderVersion === 10) {
+  if (renderVersion === 10 || renderVersion === 11) {
     drawSphereGridScreenStrip(ctx, cx, cy, r, rotY, layoutScale);
     return;
   }
@@ -886,6 +887,24 @@ function isLandPixel(r, g, b, a) {
   return a > 10 && r > 100 && g < 140 && b < 140;
 }
 
+/** hub-logo-continents-mercator-{globe,flat}.svg grey-blue fills (not red JPG extract). */
+function isHubContinentPixel(r, g, b, a) {
+  if (a < 12) {
+    return false;
+  }
+  if (r > 168 && g > 198 && b > 218) {
+    return false;
+  }
+  if (r < 48 && g < 58 && b < 82) {
+    return false;
+  }
+  const lum = r * 0.299 + g * 0.587 + b * 0.114;
+  if (lum < 92 || lum > 238) {
+    return false;
+  }
+  return b >= 100 && g >= 95 && r >= 68;
+}
+
 /** Light hub grid strokes baked into hub-logo-fragment-globe.svg (vector grid drawn separately). */
 function isGridPixel(r, g, b, a) {
   if (a < 12) {
@@ -950,6 +969,23 @@ function sampleLandRgbaMercator(mercFlat, tex) {
   return null;
 }
 
+/** globe3d=11 — same visible hemisphere as v10 grid (z > LIMB_Z); ortho hub then mercator wrap. */
+function sampleLandVisibleHemisphere(continents, mercFlat, tex) {
+  if (tex.z <= LIMB_Z) {
+    return null;
+  }
+  const ortho = sampleHub(continents, tex);
+  if (isHubContinentPixel(ortho[0], ortho[1], ortho[2], ortho[3])) {
+    return [ortho[0], ortho[1], ortho[2], Math.min(255, ortho[3])];
+  }
+  const ll = texLonLat(tex);
+  const flat = sampleMercFlat(mercFlat, ll.lon, ll.lat);
+  if (isHubContinentPixel(flat[0], flat[1], flat[2], flat[3])) {
+    return [flat[0], flat[1], flat[2], Math.min(255, flat[3])];
+  }
+  return null;
+}
+
 function fillDiskRegion(ctx, cx, cy, r, rotY, fn) {
   const r2 = r * r;
   const x0 = Math.max(0, Math.floor(cx - r));
@@ -1153,6 +1189,17 @@ export async function mountHubGlobe(stage, opts) {
           return l || [0, 0, 0, 0];
         })
       );
+    } else if (renderVersion >= 11) {
+      blitLayer(
+        ctx,
+        cx,
+        cy,
+        r,
+        fillDiskRegion(ctx, cx, cy, r, rotation, function (tex) {
+          const l = sampleLandVisibleHemisphere(continents, mercFlat, tex);
+          return l || [0, 0, 0, 0];
+        })
+      );
     }
     drawGlobeGrid(ctx, cx, cy, r, rotation, layoutScale, renderVersion);
     drawOceanRim(ctx, globeImg, cx, cy, r, rim, layoutScale, renderVersion);
@@ -1225,9 +1272,11 @@ export async function mountHubGlobe(stage, opts) {
   raf = requestAnimationFrame(tick);
   stage.dataset.globe3d = String(renderVersion);
   stage.dataset.globeAxis =
-    renderVersion === 10
-      ? 'ew-sphere-ellipse'
-      : renderVersion === 9
+    renderVersion === 11
+      ? 'ew-sphere-ellipse-land'
+      : renderVersion === 10
+        ? 'ew-sphere-ellipse'
+        : renderVersion === 9
         ? 'ew-ns-sphere-v4'
         : renderVersion >= 8
           ? 'ew-hub-ellipse-rot'
diff --git a/index.php b/index.php
index 03ec380..48befd2 100644
--- a/index.php
+++ b/index.php
@@ -187,7 +187,7 @@ function hub_h(string $s): string {
       var supportsLayout = !!(window.CSS && CSS.supports && CSS.supports('object-fit', 'cover'));
       var logoEnabled = !!(stage && supportsSvg && supportsLayout);
 
-      var logoBuild = '20260704globe13';
+      var logoBuild = '20260704globe14';
 
       function hubAsset(rel) {
         var link = document.querySelector('link[href*="hub.css"]');