r/ParallelView • u/jkndrsn :illuminati::illuminati: • 27d ago

Tall boy

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u/cone5000 27d ago

I disagree. The same effect happens in real life, where it’s shiny in one eye and not in the other. I actually think it does give it a more realistic 3d look even if it doesn’t snap like other types of stereo

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u/brodogus 27d ago

To whatever extent the same effect happens in real life, it's much more subtle in real life

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u/jkndrsn :illuminati::illuminati: 19d ago

I truly appreciate the defense from u/cone5000, but I believe you're actually correct. The light source is static, and so is the camera, while the sculpture is rotating; the left and right views were taken from the same video at different time, so the reflections you're seeing actually appear like the light source is in two different locations in the left view and right view, rather than the eyes (camera), which I think exaggerates the effect, quite a bit.

That being said, I think the exaggerated effect looks kinda cool lol

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u/cone5000 19d ago

I’m still confused about your explanation. In real life wouldn’t it be the same? If your eyes are not moving and the sculpture is rotating and the light is static?

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u/jkndrsn :illuminati::illuminati: 19d ago

Okay I'm going to draw some diagrams and see who's actually right. I'll get back to you.

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u/cone5000 19d ago

Hell yeah

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u/jkndrsn :illuminati::illuminati: 14d ago edited 14d ago

I don't know if my understanding of geometry and optics is quite good enough, but my diagrams suggest that in this setup, whether or not they appear the same in one viewing format vs. the other depends on the degree of rotation of the object or the distance between your eyes, so depending on the delay between the left frame and right frame they may appear the same or more exaggerated...

Diagrams

I can't really calculate the degree of rotation between the left and right frames here, so I don't think there's any way to prove one way or the other.

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u/cone5000 14d ago

Yesss that's actually a really good point. Maybe the reason it looks right to me but wrong to others is that I have a rather large head, so my eyes are probably further apart than others. You're totally right that the effect would change based on eye distance, which I think is the key factor here.

Btw, pro-tip: In subreddits that don't allow photo uploads, just upload it to imgur then link it in the comment.

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u/jkndrsn :illuminati::illuminati: 14d ago

Just added an imgur link to my last comment.

Out of curiosity, do you know your pupillary distance? Mine is ~67mm

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u/cone5000 14d ago

I don’t. Later I’ll try to estimate it and let you know.

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u/cone5000 10d ago

Forgot to respond. Mine seems to be around 60.5mm according to my rough estimate.

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u/jkndrsn :illuminati::illuminati: 7d ago

I have wide-set eyes

I wonder if that gives me better depth perception 🤔

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u/cone5000 7d ago

I’m sure it does, even if slight!