Recently, some of you asked me how to input the 3D object and interact with 3D objects. There are also some of the Spark AR community on facebook ask about the same topic as: How to rotate? How to scale or change the position of 3D objects ...
There are many people who are having trouble when they do this. but today, we will decipher together how to interact with 3D objects! it's easy!

Hope this video can help something for you!