Example Quaternion

class Quaternion extends hxd.App {

  var cube : h3d.scene.Mesh;

  var tx : Float = 0.;
  var ty : Float = 0.;
  var tz : Float = 0.;

  override function init() {
    var p = new h3d.prim.Cube(1, 1, 1);
    p.translate( -0.25, -0.5, -0.5);
    p.addUVs();
    p.addNormals();

    cube = new h3d.scene.Mesh(p, s3d);
    cube.material.texture = h2d.Tile.fromColor(0x808080).getTexture();

    var axis = new h3d.scene.Object(s3d);

    var ax = new h3d.scene.Box(0xFFFF0000, true, axis);
    ax.x = 0.5;
    ax.scaleY = 0.001;
    ax.scaleZ = 0.001;

    var ay = new h3d.scene.Box(0xFF00FF00, true, axis);
    ay.y = 0.5;
    ay.scaleX = 0.001;
    ay.scaleZ = 0.001;

    var az = new h3d.scene.Box(0xFF0000FF, true, axis);
    az.z = 0.5;
    az.scaleX = 0.001;
    az.scaleY = 0.001;

    var ax = new h3d.scene.Box(0xFF800000, true, cube);
    ax.x = 0.5;
    ax.scaleY = 0.001;
    ax.scaleZ = 0.001;

    var ay = new h3d.scene.Box(0xFF008000, true, cube);
    ay.y = 0.5;
    ay.scaleX = 0.001;
    ay.scaleZ = 0.001;

    var az = new h3d.scene.Box(0xFF000080, true, cube);
    az.z = 0.5;
    az.scaleX = 0.001;
    az.scaleY = 0.001;

    var ldir = new h3d.Vector( -1, -2, -5);
    ldir.normalize();

    /*
    cube.material.lightSystem = {
      ambient : new h3d.Vector(0.5, 0.5, 0.5),
      points : [],
      dirs : [{
        dir : ldir,
        color : new h3d.Vector(1, 1, 1),
      }],
    };
    */
  }

  var time = 0.;

  override function update(dt:Float) {
    time += dt * 0.6;
    var q = new h3d.Quat();
    var d = new h3d.Vector( Math.cos(time), Math.sin(time), Math.cos(time / 3) * 0.1);
    q.initDirection(d);
    cube.setRotationQuat(q);
  }

  static function main() {
    new Quaternion();
  }

}

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