PolylineGeometry colorsPerVertex seems broken in 1.6+

[chris-cooper]

This code shows per-vertex colours in Sandcastle in 1.5 but not in 1.6 or master. Is there an interface change I missed?

var viewer = new Cesium.Viewer('cesiumContainer');
var scene = viewer.scene;

var instance = new Cesium.GeometryInstance({
  geometry : new Cesium.PolylineGeometry({
      positions: Cesium.Cartesian3.fromDegreesArray([
    0.0, 0.0,
    5.0, 0.0,
    5.0, 5.0
  ]),
      width: 5.0,
      vertexFormat: Cesium.PolylineColorAppearance.VERTEX_FORMAT,
      colors:[new Cesium.Color(1,0,0), new Cesium.Color(0,1,0), new Cesium.Color(0,0,1)],
      colorsPerVertex: true,
      ellipsoid: Cesium.Ellipsoid.WGS84  // <- required for Cesium 1.5
    }),
  id : 'object returned when this instance is picked and to get/set per-instance attributes'
});
scene.primitives.add(new Cesium.Primitive({
  geometryInstances : instance,
  appearance : new Cesium.PolylineColorAppearance({})
}));

[mramato]

This was indeed a bug due to a typo. It will be fixed in 1.7.

[pjcozzi]

Fixed in #2529

[chris-cooper]

Great, thanks!