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AR Fluid Simulation Demo

(danybittel.ch)
147 points danybittel | 1 comments | 01 Sep 25 04:38 UTC | HN request time: 0s | source
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kumarvvr ◴[04 Sep 25 09:04 UTC] No.45125176[source]▶
Hi @danybittel, could you explain a bit more about the polarization filter you used to filter our the content and only let through the obstacles?

I am interested to know how it works.

Thanks.

replies(1): >>45125453 #
jnovacho ◴[04 Sep 25 09:52 UTC] No.45125453[source]▶
Virtually any LCD screen will produce polarized light. This is the core working principle of those screens. So if you use a polarized filter (sunglasses for example) it will completly block the image coming from the screen.

You can see the effect here: https://www.reddit.com/r/mildlyinteresting/comments/crvpil/t...

I believe this will not work with OLED screens though, but I do not have one to test this.

replies(1): >>45126522 #
1. PxldLtd ◴[04 Sep 25 12:32 UTC] No.45126522[source]▶
We use IR Floodlights + IR absorbing film + a high speed IR camera. Works great in most lighting conditions and the screen doesn't show up on the camera.