Fix code-review findings in OpenGL view wiring

- resetCamera re-fits the loaded model's bounding box (regression fix)
- remove dead allPolygons local in SceneBuilder.fromModel
- HighlightController: single GPU upload per highlight (no empty intermediate push)

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/HighlightController.java

@@ -44,11 +44,15 @@ public class HighlightController {
         return c == null ? new double[3] : c;
     }
 
-    public void clearHighlights() {
+    private void resetBuffers() {
         points.clear();
         pointColors.clear();
         lines.clear();
         lineColors.clear();
+    }
+
+    public void clearHighlights() {
+        resetBuffers();
         push();
     }
 
@@ -83,10 +87,10 @@ public class HighlightController {
         lineColors.add(r, g, b);
     }
 
-    // ---- public highlight API (no TriangulatedGeometry) ----
+    // ---- public highlight API ----
 
     public void highlight(Polygon p) {
-        clearHighlights();
+        resetBuffers();
         addHighlight(p, Color.RED, Color.BLUE);
         push();
     }
@@ -102,7 +106,7 @@ public class HighlightController {
     }
 
     public void highlight(LinearRing ring) {
-        clearHighlights();
+        resetBuffers();
         if (ring.getType() == LinearRingType.EXTERIOR) {
             addHighlight(ring, Color.RED);
         } else {
@@ -112,7 +116,7 @@ public class HighlightController {
     }
 
     public void highlight(List<LinearRing> rings) {
-        clearHighlights();
+        resetBuffers();
         for (LinearRing lr : rings) {
             if (lr.getType() == LinearRingType.EXTERIOR) {
                 addHighlight(lr, Color.RED);
@@ -138,7 +142,7 @@ public class HighlightController {
     }
 
     public void highlight(Edge e) {
-        clearHighlights();
+        resetBuffers();
         addHighlight(e);
         push();
     }
@@ -153,7 +157,7 @@ public class HighlightController {
     }
 
     public void highlight(Vertex v) {
-        clearHighlights();
+        resetBuffers();
         addPoint(v, Color.RED);
         push();
     }
@@ -167,7 +171,7 @@ public class HighlightController {
     }
 
     public void highlightEdges(List<Edge> errorEdges) {
-        clearHighlights();
+        resetBuffers();
         for (Edge e : errorEdges) {
             addHighlight(e);
         }
@@ -175,7 +179,7 @@ public class HighlightController {
     }
 
     public void highlightPolygons(List<List<Polygon>> components) {
-        clearHighlights();
+        resetBuffers();
         for (int i = 0; i < components.size(); i++) {
             Color extColor;
             Color intColor = switch (i % 3) {

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java

@@ -892,6 +892,9 @@ public class MainWindow extends Application {
 
     public void resetCamera() {
         glViewport.resetCamera();
+        if (controller.getOriginBB() != null) {
+            zoomOutForBoundingBox(controller.getOriginBB());
+        }
         alignNorthArrow();
     }
 

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/gl/SceneBuilder.java

@@ -64,7 +64,6 @@ public final class SceneBuilder {
      * {@code TriangulatedGeometry.of(model, filters)}.
      */
     public static SceneData fromModel(CityDoctorModel model) {
-        List<Polygon> allPolygons = new ArrayList<>();
         Vector3d center = findCenterOfModel(model);
         MeshAccumulator acc = new MeshAccumulator(center);
         PickRegistry registry = new PickRegistry();