Studio

23 Splashes.

1. Song LandscapeA song is a wave, but you can also see what it is made of.
2. Chladni PlateIn 1787 Ernst Chladni sprinkled sand on a metal plate and drew a violin bow along its edge.
3. Sound in a BoxSand on a ringing plate gathers on the lines that stay still.
4. Room Echo MeterReverberation is sound that keeps bouncing around a room after its source stops.
5. Splat MirrorTap “Start camera” and each splat takes the color of its place in the picture, so the mirror shows you, live.
6. Model to SplatsA 3D model is usually a mesh: a net of flat triangles with colors or a picture (a texture) painted on them.
7. QR CodeA QR code stores text in a square grid of dark and light modules.
8. QR ExplainedA QR code is a grid of dark and light modules with a fixed plan.
9. QR Damage LabQR codes still scan when part of them is lost, because error correction can rebuild missing codewords: about 7, 15, 25 or 30 percent at levels L, M, Q and H.
10. Triple QROne square holds three QR codes here: the first sets each module's red, the second its green and the third its blue.
11. Picture QRA QR reader samples the center of each module.
12. QR MosaicA QR code is only dark and light squares, so it can be built from real things.
13. Other BarcodesBarcodes came before QR codes.
14. Video QRA QR reader only looks at the middle of each square.
15. 360° PhotoA complete panorama becomes a spherical shell of splats around you.
16. 3D PhotoA depth model guesses relative depth from one photo, not distances in meters.
17. 3D VideoA video is a string of photos, and a computer can guess how far away each part of a photo is.
18. 3D WorldA video is a string of photos from a moving camera.
19. Sound LabSound is air pressure going up and down, and this bench shows it four ways.
20. Splat ToolkitA 3D Gaussian splat file is a long list of soft colored blobs, each with a place, a size in three directions, a turn, an opacity and a color (sometimes a color that changes with the viewing angle, called spherical harmonics).
21. Point CloudsA lidar scanner sends out laser pulses and times their echoes, so each echo becomes a point with its place, how strongly it reflected (intensity) and often a class (ground, vegetation, building, water).
22. Volume ViewerA CT, MRI or microscope scan is a volume: a stack of slices, each a grid of numbers saying how dense or bright the object is there.
23. 3D DataA table becomes a 3D chart you can turn: each row a point in a scatter, or rows gathered into bars or a surface whose heights are the mean of the rows in each cell.