Integrated mesh scene layers (.slpk) I3S data converted by FME Desktop 2018 does not display correctly in the Scene Viewer of Portal for ArcGIS.

Additional Information

Workaround

Modify some of the parameters of the SLPK and get it rendered correctly in the Scene Viewer (attached Modified.slpk)

https://supt0005059.esri.com/portal/home/item.html?id=501da4000a814fd9a23a1eeeecb8e652:

1. Open the .slpk file in the 7zip software.

2. Extract and open all the 3dNodeIndexDocument.json.gz files (using 7-zip), and modify the '[]' value to be null in all 3dNodeIndexDocument.json files. Right-click and click Edit. Then click Save.

3 Extract and open all sharedResource.json.gz files, paste the following content into sharedResource.json files, and modify the value of the 'useVertexColorAlpha from false to be true.

{

"materialDefinitions": {

"Mat1": {

"type": "standard",

"name": "standard",

"params": {

"vertexRegions": false,

"vertexColors": true,

"reflectivity": 0,

"useVertexColorAlpha": true,

"ambient": [0, 0, 0],

"diffuse": [1, 1, 1],

"specular": [0.098039215686274508, 0.098039215686274508, 0.098039215686274508],

"shininess": 1,

"renderMode": "solid",

"cullFace": "none"

}

}

}

}

4. Extract and open the 3dSceneLayer.json.gz and modify in 3dSceneLayer.json file following value to be 'false':

"cachedDrawingInfo" : {

"color" : true

}

5. Upload the .slpk to Portal for ArcGIS and open the hosted scene layer in Scene Viewer: https://supt0005059.esri.com/portal/home/item.html?id=501da4000a814fd9a23a1eeeecb8e652

Steps to Reproduce