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.

Incidentally, the viewport version of that animation doesn't work - the points only line up when refraction is taken into account.
I've used the equation for refraction countless times in shaders, but somehow it kind of blows my mind that it actually works IRL.

I rendered off an animation showing how the points are aligned when seen from exactly the right spot.

I learned my lesson from the previous displays, and this time wrote the simulator before writing the actual driver code.
It allowed me to quickly catch a flipped axis which I can believe would have otherwise taken me days to figure out.

Yes. The rays from the projector come in at an angle (so they pass down out of view rather than dazzling the viewer), and are also diverging from the source. Finding a distance along each ray to place a point so they form a uniform cuboid was the fun problem. (Calibrating it was very much not)

It’s projection mapping - the block has ~38000 points laser etched in it, arranged so they’re uniformly separated in 3D space, but all neatly laid out in a 2D grid when viewed from the projection point. You can see some stray points where I haven’t got the calibration nailed.

Yes!

I got a car with a heated steering wheel, seemed a bit pointless but whatever. Literally the day after I brought it home, when it had been in the garage and the old car relegated to the winter driveway, I got in the old old car and thought, man this steering wheel is freezing.

This one has the moon inside it, and was just a display piece. I'm getting a custom one made next with a more suitable projection surface in it.

A local trophy place.

Nothing so fancy - it's just sitting on the table. You see it briefly at the top left.

Me with my seasonal content.

Yes! It came with a bunch of bits I scavenged, including an optical bench with M6 tapped holes on a 25mm grid.
Dolly zoom on my face when I realised the extrusion wasn't 25mm, and its screws weren't M6.