Examples with Vector3 org.rajawali3d.math.vector.Vector3 used on opensource projects

Example 86 with Vector3

use of org.rajawali3d.math.vector.Vector3 in project Rajawali by Rajawali.

the class PlanesGalore method init.

public void init() {
    mGaloreMat = new Material();
    mGaloreMat.enableTime(true);
    mMaterialPlugin = new PlanesGaloreMaterialPlugin();
    mGaloreMat.addPlugin(mMaterialPlugin);
    setMaterial(mGaloreMat);
    final int numPlanes = 2000;
    final float planeSize = .3f;
    int numVertices = numPlanes * 4;
    float[] vertices = new float[numVertices * 3];
    float[] textureCoords = new float[numVertices * 2];
    float[] normals = new float[numVertices * 3];
    float[] planePositions = new float[numVertices * 3];
    float[] rotationSpeeds = new float[numVertices];
    float[] colors = new float[numVertices * 4];
    int[] indices = new int[numPlanes * 6];
    for (int i = 0; i < numPlanes; ++i) {
        Vector3 r = new Vector3(-10f + (Math.random() * 20f), -10 + (Math.random() * 20f), (Math.random() * 80f));
        int randColor = 0xff000000 + (int) (0xffffff * Math.random());
        int vIndex = i * 4 * 3;
        vertices[vIndex + 0] = -planeSize;
        vertices[vIndex + 1] = planeSize;
        vertices[vIndex + 2] = 0;
        vertices[vIndex + 3] = planeSize;
        vertices[vIndex + 4] = planeSize;
        vertices[vIndex + 5] = 0;
        vertices[vIndex + 6] = planeSize;
        vertices[vIndex + 7] = -planeSize;
        vertices[vIndex + 8] = 0;
        vertices[vIndex + 9] = -planeSize;
        vertices[vIndex + 10] = -planeSize;
        vertices[vIndex + 11] = 0;
        for (int j = 0; j < 12; j += 3) {
            normals[vIndex + j] = 0;
            normals[vIndex + j + 1] = 0;
            normals[vIndex + j + 2] = 1;
            planePositions[vIndex + j] = (float) r.x;
            planePositions[vIndex + j + 1] = (float) r.y;
            planePositions[vIndex + j + 2] = (float) r.z;
        }
        vIndex = i * 4 * 4;
        for (int j = 0; j < 16; j += 4) {
            colors[vIndex + j] = Color.red(randColor) / 255f;
            colors[vIndex + j + 1] = Color.green(randColor) / 255f;
            colors[vIndex + j + 2] = Color.blue(randColor) / 255f;
            colors[vIndex + j + 3] = 1.0f;
        }
        vIndex = i * 4 * 2;
        float u1 = .25f * (int) Math.floor(Math.random() * 4f);
        float v1 = .25f * (int) Math.floor(Math.random() * 4f);
        float u2 = u1 + .25f;
        float v2 = v1 + .25f;
        textureCoords[vIndex + 0] = u2;
        textureCoords[vIndex + 1] = v1;
        textureCoords[vIndex + 2] = u1;
        textureCoords[vIndex + 3] = v1;
        textureCoords[vIndex + 4] = u1;
        textureCoords[vIndex + 5] = v2;
        textureCoords[vIndex + 6] = u2;
        textureCoords[vIndex + 7] = v2;
        vIndex = i * 4;
        int iindex = i * 6;
        indices[iindex + 0] = (short) (vIndex + 0);
        indices[iindex + 1] = (short) (vIndex + 1);
        indices[iindex + 2] = (short) (vIndex + 3);
        indices[iindex + 3] = (short) (vIndex + 1);
        indices[iindex + 4] = (short) (vIndex + 2);
        indices[iindex + 5] = (short) (vIndex + 3);
        float rotationSpeed = -1f + (float) (Math.random() * 2f);
        rotationSpeeds[vIndex + 0] = rotationSpeed;
        rotationSpeeds[vIndex + 1] = rotationSpeed;
        rotationSpeeds[vIndex + 2] = rotationSpeed;
        rotationSpeeds[vIndex + 3] = rotationSpeed;
    }
    setData(vertices, normals, textureCoords, colors, indices, true);
    mPlanePositions = ByteBuffer.allocateDirect(planePositions.length * Geometry3D.FLOAT_SIZE_BYTES).order(ByteOrder.nativeOrder()).asFloatBuffer();
    mPlanePositions.put(planePositions);
    mRotationSpeeds = ByteBuffer.allocateDirect(rotationSpeeds.length * Geometry3D.FLOAT_SIZE_BYTES).order(ByteOrder.nativeOrder()).asFloatBuffer();
    mRotationSpeeds.put(rotationSpeeds);
    createBuffers();
}

Example 87 with Vector3

use of org.rajawali3d.math.vector.Vector3 in project Rajawali by Rajawali.

the class Matrix4Test method testSetTranslationFromVector3.

@Test
public void testSetTranslationFromVector3() throws Exception {
    final double[] expected = new double[] { // Col 0
    1d, // Col 0
    0d, // Col 0
    0d, // Col 0
    0d, // Col 1
    0d, // Col 1
    1d, // Col 1
    0d, // Col 1
    0d, // Col 2
    0d, // Col 2
    0d, // Col 2
    1d, // Col 2
    0d, // Col 3
    1d, // Col 3
    2d, // Col 3
    3d, // Col 3
    1d };
    final Matrix4 m = new Matrix4();
    m.identity();
    final Matrix4 out = m.setTranslation(new Vector3(1, 2, 3));
    assertNotNull(out);
    assertTrue(out == m);
    final double[] result = m.getDoubleValues();
    assertNotNull(result);
    for (int i = 0; i < expected.length; ++i) {
        assertEquals(expected[i], result[i], 1e-14);
    }
}

Example 88 with Vector3

use of org.rajawali3d.math.vector.Vector3 in project Rajawali by Rajawali.

the class Matrix4Test method testGetScalingNoArgs.

@Test
public void testGetScalingNoArgs() throws Exception {
    final double[] from = new double[] { 1d, 0d, 0d, 0d, 0d, 2d, 0d, 0d, 0d, 0d, 3d, 0d, 0d, 0d, 0d, 1d };
    final Vector3 expected = new Vector3(1, 2, 3);
    final Matrix4 m = new Matrix4(from);
    final Vector3 out = m.getScaling();
    assertNotNull(out);
    assertTrue(expected.equals(out, 1e-14));
}

Example 89 with Vector3

use of org.rajawali3d.math.vector.Vector3 in project Rajawali by Rajawali.

the class Matrix4Test method testNegTranslate.

@Test
public void testNegTranslate() throws Exception {
    final double[] expected = new double[] { // Col 0
    1d, // Col 0
    0d, // Col 0
    0d, // Col 0
    0d, // Col 1
    0d, // Col 1
    1d, // Col 1
    0d, // Col 1
    0d, // Col 2
    0d, // Col 2
    0d, // Col 2
    1d, // Col 2
    0d, // Col 3
    -1d, // Col 3
    -2d, // Col 3
    -3d, // Col 3
    1d };
    final Matrix4 m = new Matrix4();
    m.identity();
    final Matrix4 out = m.negTranslate(new Vector3(1, 2, 3));
    assertNotNull(out);
    assertTrue(out == m);
    final double[] result = m.getDoubleValues();
    assertNotNull(result);
    for (int i = 0; i < expected.length; ++i) {
        assertEquals(expected[i], result[i], 1e-14);
    }
}

Example 90 with Vector3

use of org.rajawali3d.math.vector.Vector3 in project Rajawali by Rajawali.

the class Matrix4Test method testProjectAndCreateVector.

@Test
public void testProjectAndCreateVector() throws Exception {
    final double[] m = new double[] { 1d, 0d, 0d, 0d, 0d, 1d, 0d, 0d, 0d, 0d, 1d, 1d, 0d, 0d, 0d, 0d };
    Vector3 v = new Vector3(2d, 3d, 4d);
    final Matrix4 matrix = new Matrix4(m);
    final Vector3 out = matrix.projectAndCreateVector(v);
    assertNotNull(out);
    assertTrue(out != v);
    assertEquals(0.5, out.x, 1e-14);
    assertEquals(0.75, out.y, 1e-14);
    assertEquals(1d, out.z, 1e-14);
}