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
57 lines
2.2 KiB
Text
57 lines
2.2 KiB
Text
// STROBE — a gated flash bound to the beat clock: some beats fire, some
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// don't (BALANCE picks the odds), the fired ones flash hot right on the
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// beat and decay through it (SMOOTH), tinted between white and a doc
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// colour (COLOUR). Every choice is a hash of floor(beat), never the
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// running clock, so the gate is exactly reproducible beat to beat.
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{
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name: "Strobe"
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engine: "screen"
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seed: 205
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input0: "test"
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speed: 1.0
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beat_pulse: 0.6
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beat_rate: 1.0
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bar_beats: 4
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glow: 1.0
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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: "SMOOTH", bind: "p0", default: 0.5},
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{name: "BALANCE", bind: "p1", default: 0.5},
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{name: "COLOUR", bind: "p2", default: 0.5}
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]
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color_bg: #x03040a
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color_a: #xffffff
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color_b: #xff3a86
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color_c: #xfff0d0
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stages: [
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{kind: "bloom", threshold: 0.5, strength: 1.3, levels: 2}
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]
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// THE LOOK LIVES HERE: the whole frame is this function. The gate is
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// a hash of floor(self.time_beat.y) — a fresh coin flip per beat,
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// never the raw clock — and the flash envelope rides
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// self.time_beat.z, the already-wrapped beat phase.
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// Inputs: uv, content = input0 at uv, cmix = pre-gated content
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// strength. Signals: self.time_beat (time, beat, phase, pulse),
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// self.sig (bar, bpm, energy, dt), self.user (p0..p3),
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// self.col_a/b/c/bg, self.fog (density, glow, content, -).
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shader: draw.DrawVjFxScreen {
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fx_color: fn(uv: vec2, content: vec4, cmix: float) -> vec4 {
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let bar = floor(self.time_beat.y)
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let gatehash = fract(sin(bar * 12.9898 + 4.0) * 43758.5453)
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let balance = 0.15 + 0.7 * clamp(self.user.y, 0.0, 1.0)
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let armed = step(1.0 - balance, gatehash)
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let phase = self.time_beat.z
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let smooth = 0.02 + 0.5 * clamp(self.user.x, 0.0, 1.0)
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let flash = pow(1.0 - clamp(phase / max(smooth, 0.001), 0.0, 1.0), 3.0)
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let hot = clamp(flash * armed, 0.0, 1.0)
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let flashcol = vec3(1.0, 1.0, 1.0).mix(self.col_b.xyz, clamp(self.user.z, 0.0, 1.0))
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let rgb = content.xyz.mix(flashcol, hot)
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return vec4(rgb, 1.0)
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}
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}
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}
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