A metaball field: drifting cores fuse and split through smooth iso-surface blending, shaded as one mercury-chrome liquid with a circling glint and a silvery rim, the pointer riding along as an extra core. Original OGL fragment shader, offscreen-paused and reduced-motion-safe; the pointer core idles on its own when untouched.
pnpm dlx shadcn@latest add "https://crucibleui.com/r/coalesce.json"