I'm doing a small project where I want to create 3D buildings from building footprints. I have acquired the heights of each building and have extruded them in ArcScene. Then I use Layer 3D to feature class to create a multi patch then exported it to COLLADA using the tool multi patch to COLLADA.
Then I took into SketchUp and have colorized the buildings using its photos taken using a camera. Now I want to use some software or something open source to view my buildings. I was told ArcGIS online can do that. I was searching and I couldn't find any option where I can import the texture COLLADA. There were only options like CSV, zip files.