Measure the 3D library and open the model review scorecard

tools/test_blender_assets.py

@@ -95,6 +95,37 @@ class BuiltAssetTests(unittest.TestCase):
         self.assertTrue((ba.SRC_DIR / ".gdignore").is_file())
 
 
+@unittest.skipUnless(ba.MANIFEST.is_file(), "Blender assets not built")
+class TexelDensityTests(unittest.TestCase):
+    def test_character_slots_report_density_and_area(self):
+        report = ba.texel_density("npc_casual")
+        self.assertEqual(report["resolution"], 256)
+        self.assertEqual(set(report["slots"]), set(ba.SLOTS) | {"eye_white", "rubber"})
+        for slot in ba.SLOTS:
+            row = report["slots"][slot]
+            self.assertGreater(row["triangles"], 0, slot)
+            self.assertGreater(row["world_area_m2"], 0.0, slot)
+            self.assertGreater(row["td_px_per_m"], 30.0, slot)
+        self.assertGreater(report["total_world_area_m2"], 1.0)
+        self.assertLess(report["total_world_area_m2"], 6.0)
+
+    def test_fabric_slots_apply_the_runtime_uv_repeat(self):
+        report = ba.texel_density("npc_casual")
+        for slot, factor in ba.TEXEL_RUNTIME_UV_SCALE.items():
+            row = report["slots"][slot]
+            self.assertAlmostEqual(row["td_runtime_px_per_m"],
+                                   row["td_px_per_m"] * factor, places=0)
+        skin = report["slots"]["skin"]
+        self.assertEqual(skin["td_px_per_m"], skin["td_runtime_px_per_m"])
+
+    def test_base_fallback_is_measurable_from_its_own_path(self):
+        from pathlib import Path
+        path = ba.ROOT / "assets" / "models" / "generated" / "npc_base.glb"
+        report = ba.texel_density("npc_base", path)
+        self.assertIsNotNone(report)
+        self.assertGreater(report["min_td"], 30.0)
+
+
 class InspectionTests(unittest.TestCase):
     """`inspect` reports on imported GLBs; the contract logic is pure and tested
     here with synthetic measurements so Blender is not a test dependency."""