Ooo

Thank you!

A group at Columbia University built a display using this principle in 2006. The game they ran on it was Pac Man, which was a 25 year old game at the time. GTA 3 is now a 25 year old game, so I thought it would be neat to run that on mine. www.youtube.com/watch?v=wrfB...

(asterisk)

Here's the build video for the new volumetric display! Lots of swivelcam footage of it doing its thing.

youtu.be/wrfBjRp61iY

I embedded a bunch of calibration targets in the block, assuming that step 1 would be manual align to those, and step 2 would be undistort or vision based point mapping. In fact step 1 works so well I haven't yet taken it further. There is some bleed, but the effort to reward of fixing it is high.

There are higher resolution projectors, and higher resolution laser etchers, so I think that would be the pragmatic way to go.
That said, when I was starting on this build one of the things I considered was rotating the block at low rpms, giving it 3D speckly grain.

You're just going to have to trust me that this is really 3D.

K9 glass

This probably won't go in the build video because it gets a bit confusing. It's a camera arranged so it can be mounted in place of the projector, with the same form factor and attachment point. If everything is lined up properly, it sees the point cloud as a nice regular grid.

Yup

The resolution isn't great, but you can still play games on it.

It's fun discovering what sort of content works best on these displays. With the spinning LEDs it was wireframe spaceships. This thing is all about museum quality loot.

Yeah, when they’re not lit up they’re practically invisible.

It's about 54x34x21, but all fuzzy like. I think I could push this setup to double that point count, but to go any higher I need a better projector.