1/*
2 * Copyright (c) 2009-2010 jMonkeyEngine
3 * All rights reserved.
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5 * Redistribution and use in source and binary forms, with or without
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10 *   notice, this list of conditions and the following disclaimer.
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12 * * Redistributions in binary form must reproduce the above copyright
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17 *   may be used to endorse or promote products derived from this software
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21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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31 */
32
33package jme3test.renderer;
34
35import com.jme3.app.SimpleApplication;
36import com.jme3.input.KeyInput;
37import com.jme3.input.controls.AnalogListener;
38import com.jme3.input.controls.KeyTrigger;
39import com.jme3.light.DirectionalLight;
40import com.jme3.math.ColorRGBA;
41import com.jme3.math.Vector3f;
42import com.jme3.scene.Geometry;
43
44public class TestParallelProjection  extends SimpleApplication implements AnalogListener {
45
46    private float frustumSize = 1;
47
48    public static void main(String[] args){
49        TestParallelProjection app = new TestParallelProjection();
50        app.start();
51    }
52
53    public void simpleInitApp() {
54        Geometry teaGeom = (Geometry) assetManager.loadModel("Models/Teapot/Teapot.obj");
55
56        DirectionalLight dl = new DirectionalLight();
57        dl.setColor(ColorRGBA.White);
58        dl.setDirection(Vector3f.UNIT_XYZ.negate());
59
60        rootNode.addLight(dl);
61        rootNode.attachChild(teaGeom);
62
63        // Setup first view
64        cam.setParallelProjection(true);
65        float aspect = (float) cam.getWidth() / cam.getHeight();
66        cam.setFrustum(-1000, 1000, -aspect * frustumSize, aspect * frustumSize, frustumSize, -frustumSize);
67
68        inputManager.addListener(this, "Size+", "Size-");
69        inputManager.addMapping("Size+", new KeyTrigger(KeyInput.KEY_W));
70        inputManager.addMapping("Size-", new KeyTrigger(KeyInput.KEY_S));
71    }
72
73    public void onAnalog(String name, float value, float tpf) {
74        // Instead of moving closer/farther to object, we zoom in/out.
75        if (name.equals("Size-"))
76            frustumSize += 0.3f * tpf;
77        else
78            frustumSize -= 0.3f * tpf;
79
80        float aspect = (float) cam.getWidth() / cam.getHeight();
81        cam.setFrustum(-1000, 1000, -aspect * frustumSize, aspect * frustumSize, frustumSize, -frustumSize);
82    }
83}
84