The polygon is clipped

CesiumJS
1

Description：
I created a polygon, moved the camera closer to the polygon, and the polygon was clipped.

ULR is a screen recording file。

Sandcastle code：

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

var redPolygon = viewer.entities.add({
    name : 'Red polygon on surface',
    polygon : {
        hierarchy : Cesium.Cartesian3.fromDegreesArray([-115.0, 37.0,
                                                        -115.0, 36.0,
                                                        -114.0, 36.0,
                                                        -114.0, 37.0,
                                                        -115.0, 37.0]),
        material : '../images/Cesium_Logo_Color.jpg',
        height : 0,
    }
});

viewer.zoomTo(viewer.entities);

2

This question has been bothering me. Can someone give me some advice?

3

It looks like the URL to the video you posted is not public (you may need to change the permissions on it to make it public). But I think I might know what the issue is. Try disabling logarithmicDepthBuffer: https://cesiumjs.org/Cesium/Build/Documentation/Scene.html?classFilter=scene#logarithmicDepthBuffer

If that doesn’t fix it, try setting camera.frustum.near = 0.1. Let me know if either of those help.

4

Thank you, Although I have found a solution, that’s what you said.