Draw My Canvas / studio

Color Symphony

Stacked sine layers scrolling in and out of phase like a waveform.

Plate 07waveform

Waiting for the animation above to load…

What lands in the file, and what the width does

One click writes whatever the animation is drawing at that moment to a PNG, with the drawmycanvas.com mark drawn into the picture rather than laid over it. Leave the width box empty and you get the stage exactly as your browser rasterised it — your window’s width times its device pixel ratio, which is about 1,600 px across from a 1280‑px window on a HiDPI laptop and about 353 px from a 390‑px phone.

Type a width instead, or take a preset, and the frame is redrawn into a canvas that wide: the height follows the stage’s own shape and the mark scales with it. The stage is 16:9 on a wide window and 4:3 below 560 px, so a width of 1200 saves 1200×675 on a laptop and 1200×900 on a phone. 1200 px is the width Open Graph and X link cards are cut from — the canonical card is 1200×630, and a card crops the extra height rather than letterboxing it.

Honest limits. Asking for more pixels than the stage was drawn at resamples pixels that were never drawn: a 1920‑px file exported from a 353‑px phone stage is bigger, not sharper. For a big file that is sharp, use Save as wallpaper: it draws the plate again from scratch at exactly 1179×2556 or 1290×2796 (phones), 1920×1080, 2560×1440 or 3840×2160 (4K), so every line is rasterised at that size and the shape is the screen’s, never stretched. Because the plate restarts, a wallpaper is a fresh run of it rather than the exact frame on screen; it is given as long as the stage has been running, up to 20 seconds, to develop. A very large width is a real memory allocation and a browser is allowed to refuse it; when that happens the line above says so plainly and nothing else on the page changes. Stills are PNG only — no JPEG, no WebP. On browsers that can record video, Record a clip saves 5, 10 or 20 seconds of the running animation as MP4 or WebM (whichever this browser can encode) at the same width, with the mark in every frame. A clip is not a seamless loop, it has no audio, and a width bigger than the stage is resampled rather than sharper — only the wallpaper is redrawn at its size. Where a browser cannot record video the button never appears and a PNG is the only export. And nothing is uploaded: the frame or clip is assembled in your own browser, so no frame of this plate ever reaches us.

Live on an HTML canvas · vanilla JavaScript · no dependencies Open fullscreen

About this piece

Seven horizontal wave layers stack across the frame. Each layer is a single line whose height at any point is the sum of two sine waves of different frequency — one long, slow swell and one shorter ripple — offset a little from the layer above it.

Time scrolls the whole stack, so the waves slide continuously left and right. Where a fast ripple in one layer lines up with a slow swell in another, the lines bunch and separate, producing the shimmering moiré you’d see through two overlaid nets.

What to look for

The layers shade from cobalt at the edges to coral in the middle, with the peak layer picking up a bone highlight, so the band has depth instead of reading flat.

No layer is ever cleared to a hard line — the redraw each frame is what animates the phase, giving the calm, endless scroll.

Curious how the loop and canvas fit together? Read how it works →

More from the gallery

All 32 animations in the gallery →