Example usage for com.badlogic.gdx.graphics.g3d ModelInstance getNode

Introduction

In this page you can find the example usage for com.badlogic.gdx.graphics.g3d ModelInstance getNode.

Prototype

public Node getNode(final String id) 

Source Link

Usage

From source file:com.bladecoder.engine.model.Sprite3DRenderer.java

License:Apache License

private PerspectiveCamera getCamera(ModelInstance modelInstance) {
    PerspectiveCamera camera3d = new PerspectiveCamera(cameraFOV, width, height);

    if (cameraPos == null) {
        Node n = null;/*from  w w  w. j  a  va  2s .c om*/

        // SET CAMERA POS FROM MODEL IF EXISTS
        n = modelInstance.getNode(cameraName);

        if (n != null) {
            cameraPos = n.translation;
        } else {
            cameraPos = new Vector3(0, 0, 5);
        }
    }

    if (cameraRot == null) {
        Node n = null;

        // SET CAMERA POS FROM MODEL IF EXISTS
        n = modelInstance.getNode(cameraName);

        if (n != null) {
            float rx = (float) (MathUtils.radiansToDegrees
                    * Math.asin(2 * n.rotation.x * n.rotation.y + 2 * n.rotation.z * n.rotation.w));
            float ry = (float) (MathUtils.radiansToDegrees
                    * Math.atan2(2 * n.rotation.x * n.rotation.w - 2 * n.rotation.y * n.rotation.z,
                            1 - 2 * n.rotation.x * n.rotation.x - 2 * n.rotation.z * n.rotation.z));
            float rz = (float) (Math.atan2(2 * n.rotation.y * n.rotation.w - 2 * n.rotation.x * n.rotation.z,
                    1 - 2 * n.rotation.y * n.rotation.y - 2 * n.rotation.z * n.rotation.z));

            setCameraRot(rx, ry, rz);
        } else {
            cameraRot = new Vector3();
        }
    }

    camera3d.position.set(cameraPos);

    camera3d.rotate(cameraRot.x, 1, 0, 0);
    camera3d.rotate(cameraRot.y, 0, 1, 0);
    camera3d.rotate(cameraRot.z, 0, 0, 1);

    camera3d.near = 0.1f;
    camera3d.far = 30;
    camera3d.update();

    return camera3d;
}

---