cb49b032df
Squashed from work; the fine-grained history is under tag archive/work-2026-08-26: - vjfx: 104 new presets — the transition lane fills out and the screen family goes wide - vjfx: three lanes land — engine hooks + hold stage, the videomesh engine, and the audio picture - vj: the thumbnail pipeline becomes one honest machine, and effects go livecodable - vj: thumbnails become mp4 — hardware-coded sheets at measured-4K cells, and the bake stops racing the GPU - store: the ceremony dies — batch publish, one transaction, and the engine stops re-reading its own log - store: the ceremony dies — batch publish, one transaction, and the engine stops re-reading its own log - vj: the console grows real transports, and the deck stops lying about reverse - vj: reverse earns a memory, and the effects stop aging - fab: a 3D creation shell and the viewer built on it
62 lines
2.3 KiB
Text
62 lines
2.3 KiB
Text
// MOLTEN GLASS — four SDF blobs smooth-min blended into a floor puddle,
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// radii pumping on the beat: metaballs WITHOUT a CPU marching pass (the
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// raymarcher IS the iso-surface). Pattern taught: smin() blending in a
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// scene_sdf subclass + closed-form orbit centers from time, so the pixel
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// shader is the entire simulation.
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{
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name: "Molten Glass"
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engine: "raymarch"
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steps: 64
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max_dist: 26.0
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cam: "orbit"
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cam_speed: 0.18
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cam_dist: 6.2
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cam_height: 2.3
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cam_fov: 56.0
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shadow: 1
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beat_pulse: "0.7 * (0.2 + 1.6*p0)"
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beat_rate: 1.0
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fog: "0.06 * (0.2 + 1.6*p2)"
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glow: "1.1 * (0.25 + 1.5*p1)"
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// PERFORMANCE DIALS — mid-knob = the stock look, exact.
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p0: 0.5 p1: 0.5 p2: 0.5
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dials: [
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{name: "PUMP", bind: "p0", default: 0.5},
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{name: "GLOW", bind: "p1", default: 0.5},
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{name: "HAZE", bind: "p2", default: 0.5}
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]
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color_bg: #x0a1012
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color_a: #x18e0b0
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color_b: #x9a2a70
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color_c: #xeafff6
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stages: [
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{kind: "bloom", threshold: 0.5, strength: 1.3, levels: 3}
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]
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shader: draw.DrawVjFxRaymarch {
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scene_sdf: fn(p: vec3) -> vec2 {
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// Blobs stay LOW (centers barely above the floor) and orbit
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// tightly, so the smooth-min keeps them merged with the
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// puddle and each other — liquid, never billiards.
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let t = self.time_beat.x * 0.6
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let swell = 0.18 * self.time_beat.w
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let mut d = p.y + 1.1
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let c1 = vec3(sin(t * 1.07) * 1.1, sin(t * 0.71) * 0.55 - 0.25, cos(t * 0.93) * 1.1)
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let c2 = vec3(sin(t * 0.83 + 2.1) * 0.9, cos(t * 1.13) * 0.45 - 0.15, sin(t * 1.31 + 4.0) * 0.9)
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let c3 = vec3(cos(t * 1.19 + 1.0) * 1.3, sin(t * 0.57 + 3.0) * 0.5 - 0.20, sin(t * 0.79 + 0.6) * 1.0)
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let c4 = vec3(sin(t * 0.67 + 5.2) * 0.6, sin(t * 1.41 + 1.4) * 0.6 + 0.15, cos(t * 0.61 + 2.8) * 0.7)
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d = self.smin(d, length(p - c1) - (0.80 + swell), 1.05)
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d = self.smin(d, length(p - c2) - (0.64 + swell), 1.05)
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d = self.smin(d, length(p - c3) - (0.56 + swell), 1.05)
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d = self.smin(d, length(p - c4) - (0.50 + swell), 1.05)
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// Material bands slide up the blobs with the beat count.
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let m = fract(p.y * 0.30 + fract(self.time_beat.y * 0.02))
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return vec2(d, m)
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}
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}
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}
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