Test for parallel tangent generation

jme3-examples/src/main/java/jme3test/stress/TestParallelTangentGeneration.java

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+/*
+ * Copyright (c) 2009-2015 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package jme3test.stress;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.shape.Sphere;
+import com.jme3.util.TangentBinormalGenerator;
+
+public class TestParallelTangentGeneration {
+
+    static ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+
+    public static void main(String[] args) {
+
+        for (int i = 0; i < 10; i++) {
+            {
+                Node root = new Node("Root");
+                for (int count = 0; count < 10; count++) {
+                    for (int samples = 4; samples < 50; samples++) {
+                        Geometry g = new Geometry();
+                        g.setMesh(new Sphere(samples, samples, 1.0f));
+                        root.attachChild(g);
+                    }
+                }
+
+                long start = System.currentTimeMillis();
+                TangentBinormalGenerator.generate(root);
+                System.out.println("Serial " + (System.currentTimeMillis() - start));
+            }
+
+            {
+                Node root = new Node("Root");
+                for (int count = 0; count < 10; count++) {
+                    for (int samples = 4; samples < 50; samples++) {
+                        Geometry g = new Geometry();
+                        g.setMesh(new Sphere(samples, samples, 1.0f));
+                        root.attachChild(g);
+                    }
+                }
+
+                long start = System.currentTimeMillis();
+                TangentBinormalGenerator.generateParallel(root, executor);
+                System.out.println("Parallel " + (System.currentTimeMillis() - start));
+            }
+
+        }
+    }
+}