LM: I sketch out my idea in Photoshop or on my drawing pad. Then I’ll go into Spark AR, which is a software from Facebook to help create filters. When you load Spark AR, a face mesh automatically pops up so you can keep yourself oriented in 3-D space. If I want my filter to have 3-D effects, I’ll model on top of the image in Modo or Blender, scale it to the proper proportions, and then put that model into Spark AR. Then I send it to my friends to test, and if it works, I publish it.