Deprecation of Ogre Loader

jme3-core/src/test/java/com/jme3/test/PreventCoreIssueRegressions.java

@@ -112,7 +112,7 @@ public void simpleInitApp() { }
     @Test
     public void testIssue1138() {
         AssetManager am = JmeSystem.newAssetManager(PreventCoreIssueRegressions.class.getResource("/com/jme3/asset/Desktop.cfg"));
-        Node cgModel = (Node)am.loadModel("Models/Elephant/Elephant.mesh.xml");
+        Node cgModel = (Node)am.loadModel("Models/Elephant/Elephant.gltf");
         cgModel.rotate(0f, -1f, 0f);
         cgModel.scale(0.04f);
 

jme3-examples/src/main/java/jme3test/animation/TestCinematic.java

@@ -221,7 +221,7 @@ private void createCameraMotion() {
 
     private void createScene() {
 
-        model = assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        model = assetManager.loadModel("Models/Oto/Oto.gltf");
         model.center();
         model.setShadowMode(ShadowMode.CastAndReceive);
         rootNode.attachChild(model);

jme3-examples/src/main/java/jme3test/animation/TestIssue2076.java

@@ -41,6 +41,7 @@
 import com.jme3.scene.Mesh;
 import com.jme3.scene.Node;
 import com.jme3.scene.VertexBuffer;
+import jme3test.app.SpatialUtils;
 
 /**
  * Test for JMonkeyEngine issue #2076: software skinning requires vertex
@@ -100,7 +101,7 @@ private void testOldAnimationSystem(String assetPath) {
         skeletonControl.setHardwareSkinningPreferred(false);
 
         // remove its vertex normals:
-        Geometry oldGeometry = (Geometry) oldJaime.getChild(0);
+        Geometry oldGeometry = SpatialUtils.findFirstGeometry(oldJaime);
         Mesh oldMesh = oldGeometry.getMesh();
         oldMesh.clearBuffer(VertexBuffer.Type.Normal);
         oldMesh.clearBuffer(VertexBuffer.Type.BindPoseNormal);
@@ -124,7 +125,7 @@ private void testNewAnimationSystem(String assetPath) {
         skinningControl.setHardwareSkinningPreferred(false);
 
         // remove its vertex normals:
-        Geometry newGeometry = (Geometry) newJaime.getChild(0);
+        Geometry newGeometry = SpatialUtils.findFirstGeometry(newJaime);
         Mesh newMesh = newGeometry.getMesh();
         newMesh.clearBuffer(VertexBuffer.Type.Normal);
         newMesh.clearBuffer(VertexBuffer.Type.BindPoseNormal);

jme3-examples/src/main/java/jme3test/app/SpatialUtils.java

@@ -0,0 +1,86 @@
+package jme3test.app;
+
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+
+/**
+ * Utility class for working with spatial hierarchies.
+ * Provides helper methods for searching and manipulating spatial scene graphs.
+ */
+public class SpatialUtils {
+
+    /**
+     * Recursively finds the first Geometry in a spatial hierarchy.
+     * This is useful for handling both simple flat structures (Ogre models) and
+     * complex nested node trees (glTF models).
+     *
+     * @param spatial The root spatial to search from
+     * @return The first Geometry found, or null if none exists
+     */
+    public static Geometry findFirstGeometry(Spatial spatial) {
+        if (spatial instanceof Geometry) {
+            return (Geometry) spatial;
+        }
+        if (spatial instanceof Node) {
+            Node node = (Node) spatial;
+            for (Spatial child : node.getChildren()) {
+                Geometry geom = findFirstGeometry(child);
+                if (geom != null) {
+                    return geom;
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Recursively finds a Geometry by name in a spatial hierarchy.
+     * Searches depth-first through the entire spatial tree.
+     *
+     * @param spatial The root spatial to search from
+     * @param name The name of the geometry to find
+     * @return The Geometry with the matching name, or null if not found
+     */
+    public static Geometry findGeometryByName(Spatial spatial, String name) {
+        if (spatial.getName() != null && spatial.getName().equals(name) && spatial instanceof Geometry) {
+            return (Geometry) spatial;
+        }
+        if (spatial instanceof Node) {
+            Node node = (Node) spatial;
+            for (Spatial child : node.getChildren()) {
+                Geometry geom = findGeometryByName(child, name);
+                if (geom != null) {
+                    return geom;
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Counts the total number of Geometries in a spatial hierarchy.
+     * Useful for debugging and understanding scene structure.
+     *
+     * @param spatial The root spatial to count from
+     * @return The total number of geometries in the hierarchy
+     */
+    public static int countGeometries(Spatial spatial) {
+        if (spatial instanceof Geometry) {
+            return 1;
+        }
+        if (spatial instanceof Node) {
+            int count = 0;
+            Node node = (Node) spatial;
+            for (Spatial child : node.getChildren()) {
+                count += countGeometries(child);
+            }
+            return count;
+        }
+        return 0;
+    }
+
+    private SpatialUtils() {
+        // Utility class, no instantiation
+    }
+}

jme3-examples/src/main/java/jme3test/bullet/TestBoneRagdoll.java

@@ -170,7 +170,7 @@ public void simpleInitApp() {
         PhysicsTestHelper.createPhysicsTestWorld(rootNode, assetManager,
                 physicsSpace);
 
-        model = (Node) assetManager.loadModel("Models/Sinbad/Sinbad.mesh.xml");
+        model = (Node) assetManager.loadModel("Models/Sinbad/Sinbad.gltf");
         rootNode.attachChild(model);
 
         composer = model.getControl(AnimComposer.class);