Example usage for javax.media.j3d Alpha Alpha

Introduction

In this page you can find the example usage for javax.media.j3d Alpha Alpha.

Prototype

public Alpha(int loopCount, long triggerTime, long phaseDelayDuration, long increasingAlphaDuration,
        long increasingAlphaRampDuration, long alphaAtOneDuration) 

Source Link

Document

Constructs a new Alpha object that assumes that the mode is INCREASING_ENABLE.

Usage

From source file:SimpleGame.java

/**
 * Creates the duck. This loads the two duck geometries from the files
 * 'duck.obj' and 'deadduck.obj' and loads these into a switch. The access
 * rights to the switch are then set so we can write to this switch to swap
 * between the two duck models. It also creates a transform group and an
 * interpolator to move the duck./*from   www .ja va 2 s.c  o  m*/
 * 
 * @return BranchGroup with content attached.
 */
protected BranchGroup buildDuck() {
    BranchGroup theDuck = new BranchGroup();
    duckSwitch = new Switch(0);
    duckSwitch.setCapability(Switch.ALLOW_SWITCH_WRITE);

    ObjectFile f1 = new ObjectFile();
    ObjectFile f2 = new ObjectFile();
    Scene s1 = null;
    Scene s2 = null;
    try {
        s1 = f1.load("duck.obj");
        s2 = f2.load("deadduck.obj");
    } catch (Exception e) {
        System.exit(1);
    }

    TransformGroup duckRotXfmGrp = new TransformGroup();
    Transform3D duckRotXfm = new Transform3D();
    Matrix3d duckRotMat = new Matrix3d();
    duckRotMat.rotY(Math.PI / 2);
    duckRotXfm.set(duckRotMat, new Vector3d(0.0, 0.0, -30.0), 1.0);
    duckRotXfmGrp.setTransform(duckRotXfm);
    duckRotXfmGrp.addChild(duckSwitch);

    duckSwitch.addChild(s1.getSceneGroup());
    duckSwitch.addChild(s2.getSceneGroup());

    TransformGroup duckMovXfmGrp = new TransformGroup();
    duckMovXfmGrp.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    duckMovXfmGrp.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    duckMovXfmGrp.addChild(duckRotXfmGrp);

    duckAlpha = new Alpha(-1, 0, 0, 3000, 0, 0);
    Transform3D axis = new Transform3D();
    PositionInterpolator moveDuck = new PositionInterpolator(duckAlpha, duckMovXfmGrp, axis, -30.0f, 30.0f);
    moveDuck.setSchedulingBounds(bounds);
    theDuck.addChild(moveDuck);
    theDuck.addChild(duckMovXfmGrp);
    return theDuck;
}

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From source file:SimpleGame.java

/**
 * This builds the ball that acts as the bullet for our gun. The ball is
 * created from a sphere primitive, and a transform group and interpolator
 * are added so that we can 'fire' the bullet.
 * //from  w ww  . j  a  v a2s  .c  o m
 * @return BranchGroup that is the root of the ball branch.
 */
protected BranchGroup buildBall() {
    BranchGroup theBall = new BranchGroup();

    Appearance ballApp = new Appearance();
    Color3f ambientColour = new Color3f(1.0f, 0.0f, 0.0f);
    Color3f emissiveColour = new Color3f(0.0f, 0.0f, 0.0f);
    Color3f specularColour = new Color3f(1.0f, 1.0f, 1.0f);
    Color3f diffuseColour = new Color3f(1.0f, 0.0f, 0.0f);
    float shininess = 20.0f;
    ballApp.setMaterial(new Material(ambientColour, emissiveColour, diffuseColour, specularColour, shininess));

    Sphere ball = new Sphere(0.2f, ballApp);

    TransformGroup ballMovXfmGrp = new TransformGroup();
    ballMovXfmGrp.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    ballMovXfmGrp.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    ballMovXfmGrp.addChild(ball);
    theBall.addChild(ballMovXfmGrp);

    ballAlpha = new Alpha(1, 0, 0, 500, 0, 0);
    Transform3D axis = new Transform3D();
    axis.rotY(Math.PI / 2);
    moveBall = new PositionInterpolator(ballAlpha, ballMovXfmGrp, axis, 0.0f, 50.0f);
    moveBall.setSchedulingBounds(bounds);
    theBall.addChild(moveBall);

    return theBall;

}

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