BEST way to use fSpy | ALL Options explained | FULL camera matching workflow with Blender

If you’ve ever struggled with fSpy, had trouble getting a perfect match, and wondered why following tutorials doesn’t work for you - watch this. You'll learn: what every single fSpy option means what are the common mistakes people make (both in fSpy and in Blender) how to deal with cropped images / shifted camera how to find the principal point (for 1-, 2- and 3- point perspective) how to determine the focal length if it's unknown why modeling from a 2-dimensional picture can lead to wrong object placement, and incorrect dimensions why setting the reference distance isn't enough I believe this is the most complete fSpy tutorial at the moment and hope it will help you with your non-trivial images. 0:00 - Intro 1:51 - Common mistakes with vanishing points 3:09 - Proper way to establish the vanishing points 7:01 - The Principal Point 8:39 - Matching the principal point 9:09 - 3-point perspective 10:38 - 2-point perspective 14:45 - 1-point perspective 16:17 - Problem with Field of view 16:53 - FOV vs Focal Length 17:32 - Determining Focal Length 21:54 - Matching dimensions 24:52 - Draft modeling 25:19 - The biggest mistake & the importance of depth 26:26 - Modeling the right way 29:37 - Blender Snapping Tips & Tricks 33:36 - Using Linked Duplicates 35:25 - Timelapse - modeling the whole scene