diff --git a/app/main.py b/app/main.py
index b698938..3d6eca1 100644
--- a/app/main.py
+++ b/app/main.py
@@ -196,7 +196,7 @@ def _build_acquisitions():
         d["video_duration_fmt"] = _fmt_dur(int(j["video_duration_s"] or 0)) if (j["video_duration_s"] or 0) > 0 else "—"
         d["trimmed_total"] = (j["trimmed_head"] or 0) + (j["trimmed_tail"] or 0)
         thumb_path = DB_PATH.parent / "thumbnails" / f"job_{j['id']}.jpg"
-        d["has_thumbnail"] = thumb_path.exists()
+        d["has_thumbnail"] = thumb_path.is_file()
         # Bust the browser cache on the mtime so the preview refreshes as the dispatcher re-copies it.
         d["thumb_ts"] = int(thumb_path.stat().st_mtime) if d["has_thumbnail"] else 0
         # Try the new column; fall back silently on old rows.
@@ -207,6 +207,13 @@ def _build_acquisitions():
         # Mask the viser link when the demo.py that was serving it has since died.
         if j["status"] == "done" and j["viser_url"] and not _viser_alive(j["viser_url"]):
             d["viser_url"] = None
+        # GLB download link: served by http.server 8300 on the worker
+        glb_url = None
+        if d.get("status") == "done" and d.get("frames_dir") and d.get("worker_host"):
+            frames_basename = (d["frames_dir"] or "").rstrip("/").split("/")[-1]
+            if frames_basename:
+                glb_url = f"http://{d['worker_host']}:8300/{frames_basename}/reconstruction.glb"
+        d["glb_url"] = glb_url
         by_acq.setdefault(j["acquisition_id"], []).append(d)
         by_acq_total[j["acquisition_id"]] = by_acq_total.get(j["acquisition_id"], 0) + dur_s
 
diff --git a/app/templates/_jobs_table.html b/app/templates/_jobs_table.html
index 0039dd3..965b4e9 100644
--- a/app/templates/_jobs_table.html
+++ b/app/templates/_jobs_table.html
@@ -15,7 +15,7 @@
             <th class="col-thumb">preview</th>
             <th class="col-id">#</th>
             <th class="col-auv">AUV · GP</th>
-            <th class="col-seg">label</th>
+            <th class="col-seg">plongée</th>
             <th class="col-dur">durée</th>
             <th class="col-frames">frames</th>
             <th class="col-trim">hors-eau</th>
@@ -38,8 +38,8 @@
                 {% if j.has_thumbnail %}<img src="jobs/{{ j.id }}/thumbnail?t={{ j.thumb_ts }}" alt="" loading="lazy">{% else %}<span class="thumb-placeholder"></span>{% endif %}
               </td>
               <td class="col-id">#{{ j.id }}</td>
-              <td class="col-auv"><strong>{{ j.auv }}</strong> · <span title="{{ j.gopro_serial }}">{{ j.gp_label }}</span></td>
-              <td class="col-seg">{{ j.segment_label }}</td>
+              <td class="col-auv"><strong>{{ j.auv }}</strong> · {{ j.gp_label }}<br><small class="gopro-serial">{{ j.gopro_serial[-6:] }}</small></td>
+              <td class="col-seg"><span title="{{ j.segment_label }}">{% if '–' in j.segment_label %}↓{{ j.segment_label.split('–')[0] }} ↑{{ j.segment_label.split('–')[1] }}{% else %}{{ j.segment_label }}{% endif %}</span></td>
               <td class="col-dur">{{ j.video_duration_fmt }}</td>
               <td class="col-frames">{% if j.frame_count %}{{ j.frame_count }}{% else %}—{% endif %}</td>
               <td class="col-trim">{% if j.trimmed_total %}−{{ j.trimmed_total }}{% else %}—{% endif %}</td>
@@ -50,8 +50,15 @@
                     <span class="prog-text">{{ j.progress }}%</span>
                   </div>
                   {% if j.step %}<div class="step-text">{{ j.step }}</div>{% endif %}
-                {% elif j.status == 'done' and j.viser_url %}
-                  <a class="btn-viser" href="{{ j.viser_url }}" target="_blank" rel="noopener">viser ↗</a>
+                {% elif j.status == 'done' %}
+                  {% if j.viser_url %}
+                    <a class="btn-viser" href="{{ j.viser_url }}" target="_blank" rel="noopener">viser ↗</a>
+                  {% else %}
+                    <button class="btn-viser" hx-post="jobs/{{ j.id }}/view" hx-target="#jobs-table" hx-swap="outerHTML" title="Charger PLY dans viser">PLY ↗</button>
+                  {% endif %}
+                  {% if j.glb_url %}
+                    <a class="btn-glb" href="{{ j.glb_url }}" download>GLB ↓</a>
+                  {% endif %}
                 {% elif j.status == 'skipped' %}
                   <span class="muted">skipped</span>
                 {% elif j.status == 'error' %}