I have a OBJ 3D model, which can display the transparency of PNG mapping. Then I export the OBJ model as a slpk file. However I can't see the transparency of the model when I load the slpk in android. If I load the slpk file in the ArcGIS Online as a Scene, I can see the transparency.
Did you meet similar problem ? And how to display the transparency of PNG mapping of 3D models ?