1/*
2 * Copyright (c) 2009-2010 jMonkeyEngine
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12 * * Redistributions in binary form must reproduce the above copyright
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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.light;
34
35import com.jme3.app.SimpleApplication;
36import com.jme3.light.DirectionalLight;
37import com.jme3.light.PointLight;
38import com.jme3.material.Material;
39import com.jme3.math.ColorRGBA;
40import com.jme3.math.Vector3f;
41import com.jme3.scene.Geometry;
42import com.jme3.scene.Mesh;
43import com.jme3.scene.Mesh.Mode;
44import com.jme3.scene.Spatial;
45import com.jme3.scene.VertexBuffer.Type;
46import com.jme3.scene.shape.Quad;
47import com.jme3.scene.shape.Sphere;
48import com.jme3.util.BufferUtils;
49import com.jme3.util.TangentBinormalGenerator;
50import java.nio.FloatBuffer;
51import java.nio.IntBuffer;
52
53
54public class TestTangentGen extends SimpleApplication {
55
56    float angle;
57    PointLight pl;
58    Geometry lightMdl;
59
60    public static void main(String[] args){
61        TestTangentGen app = new TestTangentGen();
62        app.start();
63    }
64
65    @Override
66    public void simpleInitApp() {
67        flyCam.setMoveSpeed(20);
68        Sphere sphereMesh = new Sphere(32, 32, 1);
69        sphereMesh.setTextureMode(Sphere.TextureMode.Projected);
70        sphereMesh.updateGeometry(32, 32, 1, false, false);
71        addMesh("Sphere", sphereMesh, new Vector3f(-1, 0, 0));
72
73        Quad quadMesh = new Quad(1, 1);
74        quadMesh.updateGeometry(1, 1);
75        addMesh("Quad", quadMesh, new Vector3f(1, 0, 0));
76
77        Mesh strip = createTriangleStripMesh();
78        addMesh("strip", strip, new Vector3f(0, -3, 0));
79
80        DirectionalLight dl = new DirectionalLight();
81        dl.setDirection(new Vector3f(1, -1, -1).normalizeLocal());
82        dl.setColor(ColorRGBA.White);
83        rootNode.addLight(dl);
84    }
85
86    private void addMesh(String name, Mesh mesh, Vector3f translation) {
87        TangentBinormalGenerator.generate(mesh);
88
89        Geometry testGeom = new Geometry(name, mesh);
90        Material mat = assetManager.loadMaterial("Textures/BumpMapTest/Tangent.j3m");
91        testGeom.setMaterial(mat);
92        testGeom.getLocalTranslation().set(translation);
93        rootNode.attachChild(testGeom);
94
95        Geometry debug = new Geometry(
96                "Debug " + name,
97                TangentBinormalGenerator.genTbnLines(mesh, 0.08f)
98        );
99        Material debugMat = assetManager.loadMaterial("Common/Materials/VertexColor.j3m");
100        debug.setMaterial(debugMat);
101        debug.setCullHint(Spatial.CullHint.Never);
102        debug.getLocalTranslation().set(translation);
103        rootNode.attachChild(debug);
104    }
105
106    @Override
107    public void simpleUpdate(float tpf){
108    }
109
110    private Mesh createTriangleStripMesh() {
111        Mesh strip = new Mesh();
112        strip.setMode(Mode.TriangleStrip);
113        FloatBuffer vb = BufferUtils.createFloatBuffer(3*3*3); // 3 rows * 3 columns * 3 floats
114        vb.rewind();
115        vb.put(new float[]{0,2,0}); vb.put(new float[]{1,2,0}); vb.put(new float[]{2,2,0});
116        vb.put(new float[]{0,1,0}); vb.put(new float[]{1,1,0}); vb.put(new float[]{2,1,0});
117        vb.put(new float[]{0,0,0}); vb.put(new float[]{1,0,0}); vb.put(new float[]{2,0,0});
118        FloatBuffer nb = BufferUtils.createFloatBuffer(3*3*3);
119        nb.rewind();
120        nb.put(new float[]{0,0,1}); nb.put(new float[]{0,0,1}); nb.put(new float[]{0,0,1});
121        nb.put(new float[]{0,0,1}); nb.put(new float[]{0,0,1}); nb.put(new float[]{0,0,1});
122        nb.put(new float[]{0,0,1}); nb.put(new float[]{0,0,1}); nb.put(new float[]{0,0,1});
123        FloatBuffer tb = BufferUtils.createFloatBuffer(3*3*2);
124        tb.rewind();
125        tb.put(new float[]{0,0}); tb.put(new float[]{0.5f,0}); tb.put(new float[]{1,0});
126        tb.put(new float[]{0,0.5f}); tb.put(new float[]{0.5f,0.5f}); tb.put(new float[]{1,0.5f});
127        tb.put(new float[]{0,1}); tb.put(new float[]{0.5f,1}); tb.put(new float[]{1,1});
128        int[] indexes = new int[]{0,3,1,4,2,5, 5,3, 3,6,4,7,5,8};
129        IntBuffer ib = BufferUtils.createIntBuffer(indexes.length);
130        ib.put(indexes);
131        strip.setBuffer(Type.Position, 3, vb);
132		strip.setBuffer(Type.Normal, 3, nb);
133		strip.setBuffer(Type.TexCoord, 2, tb);
134		strip.setBuffer(Type.Index, 3, ib);
135        strip.updateBound();
136        return strip;
137    }
138
139}
140