This tutorial demonstrates how to use fSpy to define the vanishing points of any image*, and thus, depending on your accuracy, recreate the characteristics of the perspective of the given image. This is useful in many visualization scenarios, but in this tutorial, fSpy will be used to lay a practical foundation for the modelling of a mesh from a photo reference.
fSpy:
https://fspy.io/
fSpy Blender add-on installation instructions:
https://github.com/stuffmatic/fSpy-Blender#getting-started
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Please note that while this tutorial is not an Unreal Engine tutorial per se, it is peripherally associated with those, and thus included in the playlist, due to it being a natural part of the workflow, although at a very initial stage.
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Timestamps:
0:00 Introduction to fSpy and its author, Per Gantelius
0:44 Preferable characteristics of the image used
1:23 fSpy: Setting up the vanishing point axes
2:52 fSpy: Final positioning of origin point, and scaling
3:47 Blender: Importing the fSpy project
4:54 Blender: Timelapse of example modeling with fSpy reference
Disclaimer:
*The software fSpy is only designed to function with pinhole camera photographs and renders – it will not work with axonometric drawings, orthogonal renders, fisheye lenses, and other situations where perspective lines do not ultimately meet up colinearly. If your vanishing point axes are not assigned as in the tutorial video (1 as X, 2 as Y), you will have to do so, unless your particular situation requires another combination. The timelapse in the end proved more than uncomfortably jittery, and while it is not proven to induce seizures, caution is advised (perhaps it is less irritative at half playback speed). In at least one instance, "colinear" is stated, when "parallel" would be correct. There might be more inaccuracies in this tutorial video – if you identify any significant one, please tell us in the comments.
Attribution:
Gymnopedie No. 1 by Kevin MacLeod
Link:
https://incompetech.filmmusic.io/song/3837-gymnopedie-no-1
License:
https://filmmusic.io/standard-license
KirunaC.JPG by Vinterfrid
CC BY 3.0 (
https://creativecommons.org/licenses/by/3.0)