Where can I find 2D Projection Complete Tutorial?

Where can I find 2D Projection Complete Tutorial?

Hi Sam! Its me again! do you know where can i find all the detail about the latest 2D projections feature that we dont need 3D model to make the app and just using renders from certain camera angles?
because this link https://help.hauzd.com/portal/en/kb/articles/quality-recommendations-to-make-a-great-rendering-app show nothing but just preview not how to make it in detail. like how we put the image? 
do we need to set up in max and make those 2D image as 3D objects?

Thanks in advance!