Polish about page portrait and navigation#76
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The bright shirt/face highlights were packing in so many stipple dots they read as a blown-out white blob. Add a highlight rolloff to the generator (b' = b * (1 - HL_DIM * b^HL_POW), HL_DIM=0.42) that dims the top of the brightness range before stippling while leaving the mid-tones alone, so the highlights get fewer, slightly smaller dots and open up into texture. Regenerated public/img/profile-dots/points.json. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017TDdCdTJbUkH7ZoWDhj7AV
A bit more rolloff at the high end so the brightest chest/shirt opens up further into even dots. Regenerated points.json. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017TDdCdTJbUkH7ZoWDhj7AV
Density now mixes tone with edges so the dots follow image *information*: rho = tone^GAMMA * (FLAT_BASE + EDGE_GAIN * edge), where edge is a blurred Sobel magnitude. The face/hair/beard/collar pack in many more dots while the flat t-shirt thins out; tone still gates the figure against the empty background. Separate foreground from background without a transparent PNG: the subject is far brighter than the near-black backdrop, so a flood fill of dark pixels from the image border yields a clean foreground mask. Each emitted point carries an fg flag (output is now stride 4: x,y,b,fg). ProfileDots reads the flag and lets the background dots drift with a loose Brownian wander (weak tether + random kicks) while the figure animates exactly as before. Breathing now pivots on the foreground centroid, and the cursor repulsion is shared by both. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017TDdCdTJbUkH7ZoWDhj7AV
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