Examples with Matrix4 com.badlogic.gdx.math.Matrix4 used on opensource projects

Example 6 with Matrix4

use of com.badlogic.gdx.math.Matrix4 in project libgdx by libgdx.

the class MeshBuilderTest method create.

@Override
public void create() {
    super.create();
    environment = new Environment();
    environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.4f, 0.4f, 0.4f, 1.f));
    environment.add(new DirectionalLight().set(0.8f, 0.8f, 0.8f, -0.5f, -1.0f, -0.8f));
    modelsWindow.setVisible(false);
    Texture texture = new Texture(Gdx.files.internal("data/badlogic.jpg"));
    Material material = new Material(TextureAttribute.createDiffuse(texture));
    MeshBuilder meshBuilder = new MeshBuilder();
    meshBuilder.begin(Usage.Position | Usage.Normal | Usage.ColorPacked | Usage.TextureCoordinates, GL20.GL_TRIANGLES);
    meshBuilder.box(1f, 1f, 1f);
    Mesh mesh = new Mesh(true, meshBuilder.getNumVertices(), meshBuilder.getNumIndices(), meshBuilder.getAttributes());
    mesh = meshBuilder.end(mesh);
    ModelBuilder modelBuilder = new ModelBuilder();
    modelBuilder.begin();
    modelBuilder.manage(texture);
    modelBuilder.node().id = "box";
    MeshPartBuilder mpb = modelBuilder.part("box", GL20.GL_TRIANGLES, Usage.Position | Usage.Normal | Usage.TextureCoordinates | Usage.ColorPacked, material);
    mpb.setColor(Color.RED);
    mpb.box(1f, 1f, 1f);
    modelBuilder.node().id = "sphere";
    mpb = modelBuilder.part("sphere", GL20.GL_TRIANGLES, Usage.Position | Usage.Normal | Usage.TextureCoordinates | Usage.ColorPacked, material);
    mpb.sphere(2f, 2f, 2f, 10, 5);
    modelBuilder.node().id = "cone";
    mpb = modelBuilder.part("cone", GL20.GL_TRIANGLES, Usage.Position | Usage.Normal | Usage.TextureCoordinates | Usage.ColorPacked, material);
    mpb.setVertexTransform(new Matrix4().rotate(Vector3.X, -45f));
    mpb.cone(2f, 3f, 1f, 8);
    modelBuilder.node().id = "cylinder";
    mpb = modelBuilder.part("cylinder", GL20.GL_TRIANGLES, Usage.Position | Usage.Normal | Usage.TextureCoordinates | Usage.ColorPacked, material);
    mpb.setUVRange(1f, 1f, 0f, 0f);
    mpb.cylinder(2f, 4f, 3f, 15);
    modelBuilder.node().id = "mesh";
    mpb = modelBuilder.part("mesh", GL20.GL_TRIANGLES, mesh.getVertexAttributes(), material);
    Matrix4 transform = new Matrix4();
    mpb.setVertexTransform(transform.setToTranslation(0, 2, 0));
    mpb.addMesh(mesh);
    mpb.setColor(Color.BLUE);
    mpb.setVertexTransform(transform.setToTranslation(1, 1, 0));
    mpb.addMesh(mesh);
    mpb.setColor(null);
    mpb.setVertexTransform(transform.setToTranslation(-1, 1, 0).rotate(Vector3.X, 45));
    mpb.addMesh(mesh);
    mpb.setVertexTransform(transform.setToTranslation(0, 1, 1));
    mpb.setUVRange(0.75f, 0.75f, 0.25f, 0.25f);
    mpb.addMesh(mesh);
    model = modelBuilder.end();
    instances.add(new ModelInstance(model, new Matrix4().trn(0f, 0f, 0f), "mesh", true));
    instances.add(new ModelInstance(model, new Matrix4().trn(-5f, 0f, -5f), "box", true));
    instances.add(new ModelInstance(model, new Matrix4().trn(5f, 0f, -5f), "sphere", true));
    instances.add(new ModelInstance(model, new Matrix4().trn(-5f, 0f, 5f), "cone", true));
    instances.add(new ModelInstance(model, new Matrix4().trn(5f, 0f, 5f), "cylinder", true));
}

Example 7 with Matrix4

use of com.badlogic.gdx.math.Matrix4 in project libgdx by libgdx.

the class ModelInstance method invalidate.

/** Makes sure that each {@link NodePart} of the {@link Node} and its sub-nodes, doesn't reference a node outside this node
	 * tree and that all materials are listed in the {@link #materials} array. */
private void invalidate(Node node) {
    for (int i = 0, n = node.parts.size; i < n; ++i) {
        NodePart part = node.parts.get(i);
        ArrayMap<Node, Matrix4> bindPose = part.invBoneBindTransforms;
        if (bindPose != null) {
            for (int j = 0; j < bindPose.size; ++j) {
                bindPose.keys[j] = getNode(bindPose.keys[j].id);
            }
        }
        if (!materials.contains(part.material, true)) {
            final int midx = materials.indexOf(part.material, false);
            if (midx < 0)
                materials.add(part.material = part.material.copy());
            else
                part.material = materials.get(midx);
        }
    }
    for (int i = 0, n = node.getChildCount(); i < n; ++i) {
        invalidate(node.getChild(i));
    }
}

Example 8 with Matrix4

use of com.badlogic.gdx.math.Matrix4 in project libgdx by libgdx.

the class SplitPane method draw.

@Override
public void draw(Batch batch, float parentAlpha) {
    validate();
    Color color = getColor();
    Drawable handle = style.handle;
    applyTransform(batch, computeTransform());
    Matrix4 transform = batch.getTransformMatrix();
    if (firstWidget != null) {
        batch.flush();
        getStage().calculateScissors(firstWidgetBounds, firstScissors);
        if (ScissorStack.pushScissors(firstScissors)) {
            if (firstWidget.isVisible())
                firstWidget.draw(batch, parentAlpha * color.a);
            batch.flush();
            ScissorStack.popScissors();
        }
    }
    if (secondWidget != null) {
        batch.flush();
        getStage().calculateScissors(secondWidgetBounds, secondScissors);
        if (ScissorStack.pushScissors(secondScissors)) {
            if (secondWidget.isVisible())
                secondWidget.draw(batch, parentAlpha * color.a);
            batch.flush();
            ScissorStack.popScissors();
        }
    }
    batch.setColor(color.r, color.g, color.b, parentAlpha * color.a);
    handle.draw(batch, handleBounds.x, handleBounds.y, handleBounds.width, handleBounds.height);
    resetTransform(batch);
}

Example 9 with Matrix4

use of com.badlogic.gdx.math.Matrix4 in project libgdx by libgdx.

the class MatrixJNITest method bench.

private void bench() {
    Matrix4 mata = new Matrix4();
    Matrix4 matb = new Matrix4();
    long start = TimeUtils.nanoTime();
    for (int i = 0; i < 1000000; i++) {
        mata.mul(matb);
    }
    Gdx.app.log("MatrixJNITest", "java matrix * matrix took: " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
    start = TimeUtils.nanoTime();
    for (int i = 0; i < 1000000; i++) {
        Matrix4.mul(mata.val, matb.val);
    }
    Gdx.app.log("MatrixJNITest", "jni matrix * matrix took: " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
    Vector3 vec = new Vector3();
    start = TimeUtils.nanoTime();
    for (int i = 0; i < 500000; i++) {
        vec.mul(mata);
    }
    Gdx.app.log("MatrixJNITest", "java vecs * matrix took: " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
    float[] fvec = new float[3];
    start = TimeUtils.nanoTime();
    for (int i = 0; i < 500000; i++) {
        Matrix4.mulVec(mata.val, fvec);
    }
    Gdx.app.log("MatrixJNITest", "jni vecs * matrix took: " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
    float[] fvecs = new float[3 * 500000];
    start = TimeUtils.nanoTime();
    Matrix4.mulVec(mata.val, fvecs, 0, 500000, 3);
    Gdx.app.log("MatrixJNITest", "jni bulk vecs * matrix took: " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
    start = TimeUtils.nanoTime();
    for (int i = 0; i < 1000000; i++) {
        mata.inv();
    }
    Gdx.app.log("MatrixJNITest", "java inv(matrix): " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
    start = TimeUtils.nanoTime();
    for (int i = 0; i < 1000000; i++) {
        Matrix4.inv(mata.val);
    }
    Gdx.app.log("MatrixJNITest", "jni inv(matrix): " + (TimeUtils.nanoTime() - start) / 1000000000.0f);
}

Example 10 with Matrix4

use of com.badlogic.gdx.math.Matrix4 in project libgdx by libgdx.

the class MatrixJNITest method create.

@Override
public void create() {
    Matrix4 mat1 = new Matrix4();
    Matrix4 mat2 = new Matrix4();
    Matrix4 mat3 = new Matrix4();
    Vector3 vec = new Vector3(1, 2, 3);
    float[] fvec = { 1, 2, 3 };
    float[] fvecs = { 1, 2, 3, 0, 0, 1, 2, 3, 0, 0, 1, 2, 3, 0, 0 };
    mat1.setToRotation(0, 1, 0, 45);
    mat2.setToRotation(1, 0, 0, 45);
    vec.mul(mat1);
    Matrix4.mulVec(mat1.val, fvec);
    Matrix4.mulVec(mat1.val, fvecs, 0, 3, 5);
    check(vec, fvec);
    check(vec, fvecs, 3, 5);
    vec.prj(mat1);
    Matrix4.prj(mat1.val, fvec);
    Matrix4.prj(mat1.val, fvecs, 0, 3, 5);
    check(vec, fvec);
    check(vec, fvecs, 3, 5);
    vec.rot(mat1);
    Matrix4.rot(mat1.val, fvec);
    Matrix4.rot(mat1.val, fvecs, 0, 3, 5);
    check(vec, fvec);
    check(vec, fvecs, 3, 5);
    if (mat1.det() != Matrix4.det(mat1.val))
        throw new GdxRuntimeException("det doesn't work");
    mat2.set(mat1);
    mat1.inv();
    Matrix4.inv(mat2.val);
    check(mat1, mat2);
    mat3.set(mat1);
    mat1.mul(mat2);
    Matrix4.mul(mat3.val, mat2.val);
    check(mat1, mat3);
    bench();
    System.out.println("All tests passed.");
}