Test Gltf morphs for #2109

jme3-examples/src/main/java/jme3test/model/anim/TestGltfMorph.java

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+/*
+ * Copyright (c) 2009-2023 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.model.anim;
+
+import com.jme3.anim.AnimComposer;
+import com.jme3.app.*;
+import com.jme3.math.*;
+import com.jme3.renderer.Limits;
+import com.jme3.scene.*;
+import com.jme3.scene.plugins.gltf.GltfModelKey;
+
+public class TestGltfMorph extends SimpleApplication {
+    private Node probeNode;
+    private float t = -1;
+    private int n = 0;
+
+    public static void main(String[] args) {
+        TestGltfMorph app = new TestGltfMorph();
+        app.start();
+    }
+
+    @Override
+    public void simpleInitApp() {
+        probeNode = (Node) assetManager.loadModel("Scenes/defaultProbe.j3o");
+        rootNode.attachChild(probeNode);
+
+        cam.setFrustumPerspective(45f, (float) cam.getWidth() / cam.getHeight(), 0.1f, 100f);
+        renderer.setDefaultAnisotropicFilter(Math.min(renderer.getLimits().get(Limits.TextureAnisotropy), 8));
+        setPauseOnLostFocus(false);
+
+        flyCam.setMoveSpeed(5);
+        flyCam.setDragToRotate(true);
+        flyCam.setEnabled(false);
+        viewPort.setBackgroundColor(new ColorRGBA().setAsSrgb(0.2f, 0.2f, 0.2f, 1.0f));
+
+        loadModel("jme3test/morph/MorphStressTest.glb", new Vector3f(0, -1, 0), 1);
+
+    }
+
+    private void loadModel(String path, Vector3f offset, float scale) {
+        GltfModelKey k = new GltfModelKey(path);
+        Spatial s = assetManager.loadModel(k);
+        s.scale(scale);
+        s.move(offset);
+        probeNode.attachChild(s);
+    }
+
+    @Override
+    public void simpleUpdate(float tpf) {
+        super.simpleUpdate(tpf);
+        if (t == -1 || t > 5) {
+            rootNode.depthFirstTraversal(sx -> {
+                AnimComposer composer = sx.getControl(AnimComposer.class);
+                if (composer != null) {
+                    String anims[] = composer.getAnimClipsNames().toArray(new String[0]);
+                    String anim = anims[n++ % anims.length];
+                    System.out.println("Play " + anim);
+                    composer.setCurrentAction(anim);
+                }
+            });
+            t = 0;
+        } else {
+            t += tpf;
+        }
+    }
+
+}