Never tried "Mirror", watched some tutorials long ago, most of them quite lavish (but more accurate)...
Since i really need a mirror for current project, i decided to give it a try...
Simply put a cam in the center of mirror and played arround with cam-settings (Focal Length + Angle of view)...





Rendered cam and put in Diffuse-Chanel of mirror. Also here played around with settings till it worked (mirror horizontally!).





Quick and dirty,
Animation had NO priority and it took me from 0 (empty project) to 100 (finished result in Hitfilm) ca. 2 hours...
Mirrors are no problem anymore for me, even when the result scientifically is no accurate reflection.
And the effort is really minor (place cam in mirror and render...)



Toystorylab on Vimeo :     Crassitudes (my "Alter Ego") on Youtube: 

Yeah, I did one in about 10 minutes.

To do it accurately (with the right angles) would be a no-brainer if we had robust Python, but I doubt whether I'll ever see that (the Python they will release sounds pathetic).  Then it would be a one-button push solution.

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Alienware Aurora R12, Win 10, i9-119000KF, 3.5GHz CPU, 128GB RAM, RTX 3090 (24GB), Samsung 960 Pro 4TB M-2 SSD, TB+ Disk space
Mike "ex-genius" Kelley

toystorylab,

Nice. Thank you for posting this. Should be quite helpful in the future. 

Walt

Thanks for the mirror tip, toystorylab. This will be most useful. As long as it is believable, it will be good enough for me.

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While is isn't very accurate, it certainly solves a problem I'm having!

Thanks for the tip!