Z-fighting and flickering between elevated polyline and point feature layers in SceneView despite different elevation offsets

SlavaL — Mon, 03 Nov 2025 08:06:51 GMT

Codepen Example: https://codepen.io/croiden/pen/NPxeWZo

When using two feature layers in a SceneView with elevationInfo.mode: "relative-to-ground" and different elevation offsets, we are experiencing z-fighting issues where the point layer flickers or becomes hidden when the polyline geometry overlaps the point locations. This occurs despite the polyline layer having a higher elevation offset (+50m) than the point layer (0m offset).

Expected Behavior

The polyline layer, which has an elevation offset of 50 meters above ground, should consistently render above the point layer (at ground level) without any flickering or occlusion, even when:

The geometries overlap in XY coordinates
The user zooms in/out
The user rotates the camera
The camera tilt changes

Actual Behavior

Point features are hidden/occluded when polylines pass over them
Visible flickering of point features occurs during camera movements (zoom, rotate, pan)
The rendering order appears inconsistent despite clear elevation separation

topic Z-fighting and flickering between elevated polyline and point feature layers in SceneView despite different elevation offsets in ArcGIS JavaScript Maps SDK Questions

Z-fighting and flickering between elevated polyline and point feature layers in SceneView despite different elevation offsets