I can totally see why digital artists would get value from this! I work in VFX and have found that after watching a shot on loop a few hundred times (over week

I can totally see why digital artists would get value from this! I work in VFX and have found that after watching a shot on loop a few hundred times (over weeks) it can be quite helpful to watch it 'flopped' (horizontal mirror), which seems to be able to give nearly a whole-new perspective (on the effects-content) in many cases.