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feat: add dandelion example, remove snow globe - #37
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It never got past looking like a noise field with a house in it, and another pass was not going to change that. Drop the screen, hook, shader and card so the home list only shows effects worth showing. Claude-Session: https://claude.ai/code/session_01MYgJDumHFGETXWCh37fS7V
Blow on the phone and the seeds lift off a photographed seed head and drift away on the breath; tap to grow it back. The object is a real photo (Taraxacum seedhead by Marie-Lan Nguyen, CC BY 2.5, Wikimedia Commons), packed into a three-panel atlas: the photo, the same frame with the head inpainted away down to the receptacle, and a mask panel with the head disc and a hair matte. The shader only does the disturbance: tufts are the photo's own pixels through the matte, split into two classes on different wind fields so they separate instead of flying as one copy. Breath energy accumulates as push squared, so a gentle puff thins the rim and a held breath strips the head. The release front sweeps in small waves at a fixed rate so neighbouring cells go ~10 ms apart and the fragment gather never tears. Detached seeds do not return. The atlas pipeline (Vision mask, ImageMagick inpaint) is in assets/dandelion/tools. __dandelionBlow/__dandelionReset/__dandelionState are exposed in dev builds so the simulator, whose mic is silent, can drive it. Claude-Session: https://claude.ai/code/session_01MYgJDumHFGETXWCh37fS7V
The release order's first slice covered only the bare fringe, so a light breath banked energy but stripped nothing visible, and energy below one wave never released at all. Cells are now ordered ring-first over tuft-bearing cells only, and banked energy releases when the breath stops. Tufts read as white specks; larger cells with a luma-gated matte read as parachutes, and their travel runs on the band clock so the stagger only gates appearance instead of slicing at cell boundaries. The receptacle was the photo centre pasted at full size, a dandelion in miniature; it is now blurred, shrunk and dome-shaded. Dark blotches around the head during a strip came from inpaint-vs-bokeh tone under a ragged front, so the cross-fade is wider and the lean falls off smoothly instead of following the Vision mask's jagged edge. Thumbnail recaptured from the final build. Claude-Session: https://claude.ai/code/session_01MYgJDumHFGETXWCh37fS7V
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Problem
The snow globe read as a drawn demo rather than a real object and was cut. The next issue #31 idea, dandelion, needed to be built on a photograph so it does not repeat that.
Approach
Remove the snow globe. Add a dandelion on a Wikimedia macro photo (CC BY 2.5) packed into a three-panel atlas; the shader only lifts and drifts the photo's own tufts on mic breath, with tap to regrow.
Tests
__dandelionBlow: gentle puff thins the rim, held breath strips the head to a bald receptacle; tap-to-regrow by touch; hooks removed on Back.assets/dandelion/tools/is byte-identical; WGSL naga-clean;yarn lintandyarn typecheckpass.Screenshots