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);

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

@@ -138,7 +138,7 @@ public void simpleInitApp() {
     }
 
     private void buildPlayer() {
-        spaceCraft = assetManager.loadModel("Models/HoverTank/Tank2.mesh.xml");
+        spaceCraft = assetManager.loadModel("Models/HoverTank/Tank2.gltf");
         CollisionShape colShape = CollisionShapeFactory.createDynamicMeshShape(spaceCraft);
         spaceCraft.setShadowMode(ShadowMode.CastAndReceive);
         spaceCraft.setLocalTranslation(startLocation);
@@ -164,7 +164,7 @@ public void makeMissile() {
         Quaternion rot = spaceCraft.getWorldRotation();
         Vector3f dir = rot.getRotationColumn(2);
 
-        Spatial missile = assetManager.loadModel("Models/SpaceCraft/Rocket.mesh.xml");
+        Spatial missile = assetManager.loadModel("Models/SpaceCraft/Rocket.gltf");
         missile.scale(0.5f);
         missile.rotate(0, FastMath.PI, 0);
         missile.updateGeometricState();

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

@@ -30,7 +30,7 @@ public void simpleInitApp() {
         stateManager.attach(bulletAppState);
         initCrossHair();
 
-        Spatial s = assetManager.loadModel("Models/Elephant/Elephant.mesh.xml");
+        Spatial s = assetManager.loadModel("Models/Elephant/Elephant.gltf");
         s.setLocalScale(0.1f);
 
         CollisionShape collisionShape = CollisionShapeFactory.createMeshShape(s);

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

@@ -160,7 +160,7 @@ public void simpleInitApp() {
                 physicsSpace);
         initWall(2f, 1f, 1f);
 
-        model = (Node) assetManager.loadModel("Models/Sinbad/Sinbad.mesh.xml");
+        model = (Node) assetManager.loadModel("Models/Sinbad/Sinbad.gltf");
         rootNode.attachChild(model);
         model.lookAt(new Vector3f(0f, 0f, -1f), Vector3f.UNIT_Y);
         model.setLocalTranslation(4f, 0f, -7f);

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

@@ -294,7 +294,7 @@ private void createTerrain() {
     private void createCharacter() {
         CapsuleCollisionShape capsule = new CapsuleCollisionShape(3f, 4f);
         character = new CharacterControl(capsule, 0.01f);
-        model = (Node) assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        model = (Node) assetManager.loadModel("Models/Oto/Oto.gltf");
         model.addControl(character);
         character.setPhysicsLocation(new Vector3f(-140, 40, -10));
         rootNode.attachChild(model);

jme3-examples/src/main/java/jme3test/bullet/shape/TestGimpactShape.java

@@ -56,6 +56,7 @@
 import com.jme3.system.AppSettings;
 import java.util.ArrayList;
 import java.util.List;
+import jme3test.app.SpatialUtils;
 import jme3test.bullet.PhysicsTestHelper;
 
 /**
@@ -262,19 +263,19 @@ private void dropTest2(Vector3f offset) {
     }
 
     private void dropPot(Vector3f offset) {
-        drop(offset.add(-12, 7, 15), "Models/Teapot/Teapot.mesh.xml", 1.0f, 2);
+        drop(offset.add(-12, 7, 15), "Models/Teapot/Teapot.gltf", 1.0f, 2);
     }
 
     private void dropSword(Vector3f offset) {
-        drop(offset.add(-10, 5, 3), "Models/Sinbad/Sword.mesh.xml", 1.0f, 2);
+        drop(offset.add(-10, 5, 3), "Models/Sinbad/Sword.gltf", 1.0f, 2);
     }
 
     private void dropSign(Vector3f offset) {
-        drop(offset.add(9, 15, 5), "Models/Sign Post/Sign Post.mesh.xml", 1.0f, 1);
+        drop(offset.add(9, 15, 5), "Models/Sign Post/SignPost.gltf", 1.0f, 1);
     }
 
     private void dropRocket(Vector3f offset) {
-        RigidBodyControl c = drop(offset.add(26, 4, 7), "Models/SpaceCraft/Rocket.mesh.xml", 4.0f, 3);
+        RigidBodyControl c = drop(offset.add(26, 4, 7), "Models/SpaceCraft/Rocket.gltf", 4.0f, 3);
         c.setAngularDamping(0.5f);
         c.setLinearDamping(0.5f);
     }
@@ -285,7 +286,7 @@ private RigidBodyControl drop(Vector3f offset, String model, float scale, float
         n.setLocalTranslation(offset);
         n.rotate(0, 0, -FastMath.HALF_PI);
 
-        Geometry tp = ((Geometry) n.getChild(0));
+        Geometry tp = SpatialUtils.findFirstGeometry(n);
         tp.scale(scale);
         Material mat = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
         tp.setMaterial(mat);

jme3-examples/src/main/java/jme3test/collision/TestMousePick.java

@@ -119,7 +119,7 @@ private void setupScene() {
         shootables.attachChild(torus);
 
         // load a character from jme3-testdata
-        Spatial golem = assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        Spatial golem = assetManager.loadModel("Models/Oto/Oto.gltf");
         golem.scale(0.5f);
         golem.setLocalTranslation(-1.0f, -1.5f, -0.6f);
         shootables.attachChild(golem);

jme3-examples/src/main/java/jme3test/collision/TestRayCasting.java

@@ -71,7 +71,7 @@ public void simpleInitApp() {
         q.updateBound();
 //        Geometry teapot = new Geometry("MyGeom", q);
 
-        teapot = assetManager.loadModel("Models/Teapot/Teapot.mesh.xml");
+        teapot = assetManager.loadModel("Models/Teapot/Teapot.gltf");
 //        teapot.scale(2f, 2f, 2f);
 //        teapot.move(2f, 2f, -.5f);
         teapot.rotate(FastMath.HALF_PI, FastMath.HALF_PI, FastMath.HALF_PI);

jme3-examples/src/main/java/jme3test/collision/TestTriangleCollision.java

@@ -70,7 +70,7 @@ public void simpleInitApp() {
         rootNode.attachChild(geom1);
 
         // load a character from jme3-testdata
-        golem = assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        golem = assetManager.loadModel("Models/Oto/Oto.gltf");
         golem.scale(0.5f);
         golem.setLocalTranslation(-1.0f, -1.5f, -0.6f);
 

jme3-examples/src/main/java/jme3test/effect/TestEverything.java

@@ -35,7 +35,11 @@
 import com.jme3.app.SimpleApplication;
 import com.jme3.light.DirectionalLight;
 import com.jme3.material.Material;
-import com.jme3.math.*;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.FastMath;
+import com.jme3.math.Quaternion;
+import com.jme3.math.Vector2f;
+import com.jme3.math.Vector3f;
 import com.jme3.post.FilterPostProcessor;
 import com.jme3.post.filters.ToneMapFilter;
 import com.jme3.renderer.Caps;
@@ -50,6 +54,8 @@
 import com.jme3.util.SkyFactory;
 import com.jme3.util.mikktspace.MikktspaceTangentGenerator;
 
+import jme3test.app.SpatialUtils;
+
 public class TestEverything extends SimpleApplication {
 
     private DirectionalLightShadowRenderer dlsr;
@@ -151,21 +157,23 @@ public void setupFloor(){
 //
 //    }
 
-    public void setupRobotGuy(){
-        Node model = (Node) assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+    public void setupRobotGuy() {
+        Node model = (Node) assetManager.loadModel("Models/Oto/Oto.gltf");
+        Geometry otoGeometry = SpatialUtils.findFirstGeometry(model);
         Material mat = assetManager.loadMaterial("Models/Oto/Oto.j3m");
-        model.getChild(0).setMaterial(mat);
-//        model.setAnimation("Walk");
+        otoGeometry.setMaterial(mat);
+
         model.setLocalTranslation(30, 10.5f, 30);
         model.setLocalScale(2);
         model.setShadowMode(ShadowMode.CastAndReceive);
         rootNode.attachChild(model);
     }
 
     public void setupSignpost(){
-        Spatial signpost = assetManager.loadModel("Models/Sign Post/Sign Post.mesh.xml");
+        Spatial signpost = assetManager.loadModel("Models/Sign Post/SignPost.gltf");
         Material mat = assetManager.loadMaterial("Models/Sign Post/Sign Post.j3m");
         signpost.setMaterial(mat);
+
         signpost.rotate(0, FastMath.HALF_PI, 0);
         signpost.setLocalTranslation(12, 3.5f, 30);
         signpost.setLocalScale(4);

jme3-examples/src/main/java/jme3test/export/TestAssetLinkNode.java

@@ -67,7 +67,7 @@ public static void main(String[] args){
     @Override
     public void simpleInitApp() {
         AssetLinkNode loaderNode=new AssetLinkNode();
-        loaderNode.addLinkedChild(new ModelKey("Models/MonkeyHead/MonkeyHead.mesh.xml"));
+        loaderNode.addLinkedChild(new ModelKey("Models/MonkeyHead/MonkeyHead.gltf"));
         //load/attach the children (happens automatically on load)
 //        loaderNode.attachLinkedChildren(assetManager);
 //        rootNode.attachChild(loaderNode);

jme3-examples/src/main/java/jme3test/games/CubeField.java

@@ -51,6 +51,7 @@
 import java.util.ArrayList;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import jme3test.app.SpatialUtils;
 
 /**
  * @author Kyle "bonechilla" Williams
@@ -276,7 +277,7 @@ else if(difficulty>lowCap){
             for (int i = 0; i < cubeField.size(); i++){
 
                 //better way to check collision
-                Geometry playerModel = (Geometry) player.getChild(0);
+                Geometry playerModel = SpatialUtils.findFirstGeometry(player);
                 Geometry cubeModel = cubeField.get(i);
 
                 BoundingVolume pVol = playerModel.getWorldBound();

jme3-examples/src/main/java/jme3test/helloworld/HelloAnimation.java

@@ -70,8 +70,8 @@ public void simpleInitApp() {
     dl.setDirection(new Vector3f(-0.1f, -1f, -1).normalizeLocal());
     rootNode.addLight(dl);
 
-    /* Load a model that contains animation */
-    Node player = (Node) assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+    /* Load a gltf model that contains animation */
+    Node player = (Node) assetManager.loadModel("Models/Oto/Oto.gltf");
     player.setLocalScale(0.5f);
     rootNode.attachChild(player);
 

jme3-examples/src/main/java/jme3test/helloworld/HelloAssets.java

@@ -77,8 +77,8 @@ public void simpleInitApp() {
         helloText.setLocalTranslation(300, helloText.getLineHeight(), 0);
         guiNode.attachChild(helloText);
 
-        /* Load a Ninja model (OgreXML + material + texture from test_data) */
-        Spatial ninja = assetManager.loadModel("Models/Ninja/Ninja.mesh.xml");
+        /* Load a Ninja model (glTF format from test_data) */
+        Spatial ninja = assetManager.loadModel("Models/Ninja/Ninja.gltf");
         ninja.scale(0.05f, 0.05f, 0.05f);
         ninja.rotate(0.0f, -3.0f, 0.0f);
         ninja.setLocalTranslation(0.0f, -5.0f, -2.0f);

jme3-examples/src/main/java/jme3test/helloworld/HelloPicking.java

@@ -169,7 +169,7 @@ private void initCrossHairs() {
 
   private Spatial makeCharacter() {
     // load a character from jme3-testdata
-    Spatial golem = assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+    Spatial golem = assetManager.loadModel("Models/Oto/Oto.gltf");
     golem.scale(0.5f);
     golem.setLocalTranslation(-1.0f, -1.5f, -0.6f);
 

jme3-examples/src/main/java/jme3test/light/TestIssue2209.java

@@ -31,12 +31,14 @@
  */
 package jme3test.light;
 
+import java.util.logging.Logger;
+
 import com.jme3.app.SimpleApplication;
 import com.jme3.light.DirectionalLight;
 import com.jme3.renderer.queue.RenderQueue;
 import com.jme3.scene.Node;
 import com.jme3.shadow.DirectionalLightShadowRenderer;
-import java.util.logging.Logger;
+
 import jme3test.bullet.TestIssue1125;
 
 /**
@@ -81,7 +83,7 @@ public void simpleInitApp() {
         dlsr.setLight(dl);
         viewPort.addProcessor(dlsr);
 
-        Node player = (Node) assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        Node player = (Node) assetManager.loadModel("Models/Oto/Oto.gltf");
         player.setShadowMode(RenderQueue.ShadowMode.Cast);
         rootNode.attachChild(player);
     }