made Spatial iterable

Author: codex128

jme3-core/src/main/java/com/jme3/scene/Spatial.java

@@ -1881,7 +1881,7 @@ public void breadthFirstTraversal(SceneGraphVisitor visitor) {
     protected abstract void findNextIteration(GraphIterator iterator);
 
     @Override
-    public Iterator<Spatial> iterator() {
+    public GraphIterator iterator() {
         return new GraphIterator(this);
     }
 

jme3-core/src/main/java/com/jme3/vulkan/scene/NotNode.java

@@ -6,6 +6,8 @@
 import com.jme3.math.Quaternion;
 import com.jme3.math.Transform;
 import com.jme3.math.Vector3f;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Spatial;
 import com.jme3.shaderc.ShaderType;
 import com.jme3.shaderc.ShadercLoader;
 import com.jme3.system.AppSettings;
@@ -434,10 +436,18 @@ public void update(UpdateFrameManager frames, float tpf) {
             // run graphics commands via CommandBatch
             graphics.run(graphicsCommands, frames.getCurrentFrame());
 
-            material.bind(graphicsCommands, pipeline);
-            mesh.bind(graphicsCommands);
-            for (int i = 0; i < 100; i++) {
-                mesh.draw(graphicsCommands);
+//            material.bind(graphicsCommands, pipeline);
+//            mesh.bind(graphicsCommands);
+//            mesh.draw(graphicsCommands);
+
+            // draw all geometries in the rootNode
+            for (Spatial s : rootNode) {
+                if (s instanceof Geometry) {
+                    Geometry g = (Geometry)s;
+                    g.getMaterial().bind(graphicsCommands, pipeline);
+                    g.getMesh().bind(graphicsCommands);
+                    g.getMesh().draw(graphicsCommands);
+                }
             }
 
             // material