Example usage for javax.media.j3d GeometryArray setColors

Introduction

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

Prototype

public void setColors(int index, Color4b colors[], int start, int length) 

Source Link

Document

Sets the colors associated with the vertices starting at the specified index for this object using data in colors starting at index start for length colors.

Usage

From source file:AppearanceTest.java

protected BranchGroup createSceneBranchGroup() {
    BranchGroup objRoot = super.createSceneBranchGroup();

    TransformGroup zoomTg = new TransformGroup();
    zoomTg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    zoomTg.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);

    // attach a navigation behavior to the position of the viewer
    KeyNavigatorBehavior key = new KeyNavigatorBehavior(zoomTg);
    key.setSchedulingBounds(createApplicationBounds());
    key.setEnable(true);//from ww w.  j a  v a 2  s. c o  m
    objRoot.addChild(key);

    // create a TransformGroup to flip the hand onto its end and enlarge it.
    TransformGroup objTrans1 = new TransformGroup();
    Transform3D tr = new Transform3D();
    objTrans1.getTransform(tr);
    tr.setEuler(new Vector3d(0.5 * Math.PI, 0.6, 0));
    objTrans1.setTransform(tr);

    // Set up the global lights
    Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
    Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f);
    Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);

    AmbientLight aLgt = new AmbientLight(alColor);
    aLgt.setInfluencingBounds(getApplicationBounds());
    DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
    lgt1.setInfluencingBounds(getApplicationBounds());

    objRoot.addChild(aLgt);
    objRoot.addChild(lgt1);

    int nScale = 50;

    Box box = new Box(nScale, nScale, nScale, Primitive.GENERATE_NORMALS | Primitive.GENERATE_TEXTURE_COORDS,
            m_Appearance);

    Shape3D frontFace = box.getShape(Box.LEFT);

    // create a new left face so we can
    // assign per-vertex colors

    GeometryArray geometry = new QuadArray(4, GeometryArray.COORDINATES | GeometryArray.NORMALS
            | GeometryArray.COLOR_4 | GeometryArray.TEXTURE_COORDINATE_2);

    nScale = 40;

    final float[] verts = {
            // left face
            -1.0f * nScale, -1.0f * nScale, 1.0f * nScale, -1.0f * nScale, 1.0f * nScale, 1.0f * nScale,
            -1.0f * nScale, 1.0f * nScale, -1.0f * nScale, -1.0f * nScale, -1.0f * nScale, -1.0f * nScale };

    final float[] colors = {
            // left face
            1, 0, 0, 0, 0, 1, 0, 0.2f, 0, 0, 1, 0.8f, 0, 0, 0, 1, };

    float[] tcoords = {
            // left
            1, 0, 1, 1, 0, 1, 0, 0 };

    Vector3f normalVector = new Vector3f(-1.0f, 0.0f, 0.0f);

    geometry.setColors(0, colors, 0, 4);

    for (int n = 0; n < 4; n++)
        geometry.setNormal(n, normalVector);

    geometry.setTextureCoordinates(0, tcoords, 0, 4);

    geometry.setCoordinates(0, verts);

    frontFace.setGeometry(geometry);

    // connect the scenegraph
    objTrans1.addChild(box);
    zoomTg.addChild(objTrans1);
    objRoot.addChild(zoomTg);

    return objRoot;
}

---