Liquid Metal Field 2.0

"use client";

/*
 * LiquidMetalField2: a full-bleed field of liquid metal, raymarched per pixel.
 *
 * The drops are signed-distance spheres joined with a smooth minimum, so two
 * that drift close pull a neck between them and fuse, then tear apart again.
 * Each drop stretches along its own velocity, so a flung one trails into a
 * teardrop. The metal reflects a lit studio (an overhead softbox, two strip
 * lights, a coloured rim behind, a bright horizon) that turns toward the
 * pointer, reflects the other drops in itself, and stands on a black mirror
 * floor that reflects the drops back with soft contact shadows.
 *
 * Hands on: hover pulls the drops toward the pointer; press on a drop to pick
 * it up and drag it out of the pool (let go to throw it); press on empty space
 * to gather every drop under your hand, and let go to splash them apart.
 *
 * Runtime: WebGL2, compiled with KHR_parallel_shader_compile before anything

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}