2D Polygon rendering artifacts near a pole

[bagnell]

Here is a code sample to see the issue:

    var polygon = new Cesium.Polygon();
    polygon.affectedByLighting = false;
    polygon.setPositions(ellipsoid.cartographicArrayToCartesianArray([
        Cesium.Cartographic.fromDegrees(-42.75,65.6249),
        Cesium.Cartographic.fromDegrees(-58.7498,64.3139),
        Cesium.Cartographic.fromDegrees(-71.5318,60.7427),
        Cesium.Cartographic.fromDegrees(-80.3024,55.6384),
        Cesium.Cartographic.fromDegrees(-85.8009,49.6215),
        Cesium.Cartographic.fromDegrees(-88.9521,43.0974),
        Cesium.Cartographic.fromDegrees(-90.4365,36.317),
        Cesium.Cartographic.fromDegrees(-90.6873,29.4448),
        Cesium.Cartographic.fromDegrees(-89.9653,22.6),
        Cesium.Cartographic.fromDegrees(-88.4185,15.8811),
        Cesium.Cartographic.fromDegrees(-86.1224,9.3805),
        Cesium.Cartographic.fromDegrees(-83.1049,3.193),
        Cesium.Cartographic.fromDegrees(-79.365,-2.5773),
        Cesium.Cartographic.fromDegrees(-74.8895,-7.8139),
        Cesium.Cartographic.fromDegrees(-69.6722,-12.386),
        Cesium.Cartographic.fromDegrees(-63.7362,-16.1532),
        Cesium.Cartographic.fromDegrees(-57.1585,-18.9746),
        Cesium.Cartographic.fromDegrees(-50.0889,-20.7259),
        Cesium.Cartographic.fromDegrees(-42.75,-21.3201),
        Cesium.Cartographic.fromDegrees(-35.4111,-20.7259),
        Cesium.Cartographic.fromDegrees(-28.3415,-18.9746),
        Cesium.Cartographic.fromDegrees(-21.7638,-16.1532),
        Cesium.Cartographic.fromDegrees(-15.8278,-12.386),
        Cesium.Cartographic.fromDegrees(-10.6105,-7.8139),
        Cesium.Cartographic.fromDegrees(-6.135,-2.5773),
        Cesium.Cartographic.fromDegrees(-2.3951,3.193),
        Cesium.Cartographic.fromDegrees(0.6224,9.3805),
        Cesium.Cartographic.fromDegrees(2.9185,15.8811),
        Cesium.Cartographic.fromDegrees(4.4653,22.6),
        Cesium.Cartographic.fromDegrees(5.1873,29.4448),
        Cesium.Cartographic.fromDegrees(4.9365,36.317),
        Cesium.Cartographic.fromDegrees(3.4521,43.0974),
        Cesium.Cartographic.fromDegrees(0.3009,49.6215),
        Cesium.Cartographic.fromDegrees(-5.1976,55.6384),
        Cesium.Cartographic.fromDegrees(-13.9682,60.7427),
        Cesium.Cartographic.fromDegrees(-26.7502,64.3139)
    ]));
    primitives.add(polygon);

[bagnell]

@mramato @pjcozzi I think this was fixed by the new geometry batching. Can one of you also test this?

[mramato]

Yep.

[mramato]