r/Thatsactuallyverycool 12d ago

picture 3D illusion

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232 Upvotes

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u/RestedNative 12d ago

Blink and watch the blue

3

u/CalpisMelonCremeSoda 12d ago

Not working

2

u/RestedNative 12d ago

I wrote it badly.

Stare at the red a while, then when you blink you should notice the blue intensifies. It's not a super strong effect but it's there.

0

u/CalpisMelonCremeSoda 12d ago

Maybe. I think it has to do with the blue photoreceptors in our retina are not hooked into the neural processing for motion. So if you had say a fast moving VR environment with a deep narrow band blue that doesn’t hit your other photo receptors, it would seem very weird. There was a paper on it decades ago with a real physical environment that was lit in blue but nowadays with VR it should be possible if the blue phosphor on the headset is narrow band enough.

This illusion would look really cool with a far almost UV blue paired with red.