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31  */
32 
33 package jme3test.stress;
34 
35 import com.jme3.app.SimpleApplication;
36 import com.jme3.material.Material;
37 import com.jme3.math.Vector3f;
38 import com.jme3.scene.Geometry;
39 import com.jme3.scene.Mesh;
40 import com.jme3.scene.Node;
41 import com.jme3.scene.Spatial.CullHint;
42 import com.jme3.scene.shape.Sphere;
43 import com.jme3.util.NativeObjectManager;
44 import java.util.logging.Level;
45 import java.util.logging.Logger;
46 
47 /**
48  * Generates 400 new meshes every frame then leaks them.
49  * Notice how memory usage stays constant and OpenGL objects
50  * are properly destroyed.
51  */
52 public class TestLeakingGL extends SimpleApplication {
53 
54     private Material solidColor;
55     private Sphere original;
56 
main(String[] args)57     public static void main(String[] args){
58         TestLeakingGL app = new TestLeakingGL();
59         app.start();
60     }
61 
simpleInitApp()62     public void simpleInitApp() {
63         original = new Sphere(4, 4, 1);
64         original.setStatic();
65         original.setInterleaved();
66 
67         // this will make sure all spheres are rendered always
68         rootNode.setCullHint(CullHint.Never);
69         solidColor = assetManager.loadMaterial("Common/Materials/RedColor.j3m");
70         cam.setLocation(new Vector3f(0, 5, 0));
71         cam.lookAt(Vector3f.ZERO, Vector3f.UNIT_Y);
72 
73         Logger.getLogger(Node.class.getName()).setLevel(Level.WARNING);
74         Logger.getLogger(NativeObjectManager.class.getName()).setLevel(Level.WARNING);
75     }
76 
77     @Override
simpleUpdate(float tpf)78     public void simpleUpdate(float tpf){
79         rootNode.detachAllChildren();
80         for (int y = -15; y < 15; y++){
81             for (int x = -15; x < 15; x++){
82                 Mesh sphMesh = original.deepClone();
83                 Geometry sphere = new Geometry("sphere", sphMesh);
84 
85                 sphere.setMaterial(solidColor);
86                 sphere.setLocalTranslation(x * 1.5f, 0, y * 1.5f);
87                 rootNode.attachChild(sphere);
88             }
89         }
90     }
91 }
92