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
29 lines
1.2 KiB
Text
29 lines
1.2 KiB
Text
// MULTIPLY — deck B darkens deck A wherever B itself is dark: the
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// classic ink/paint combine, result = a*b (the inverse logic of the
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// additive family at 109/112). GAIN pushes B's darkening hotter before
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// the multiply, CURVE bends the fader response, KEY narrows the darken
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// to B's own shadows only.
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{
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name: "Multiply"
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engine: "transition"
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engage: "ramp"
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p1: 0.5
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dials: [
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{name: "GAIN", bind: "p0", default: 0.5},
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{name: "CURVE", bind: "p1", default: 0.5},
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{name: "KEY", bind: "p2", default: 0.0}
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]
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shader: draw.DrawVjFxDuo {
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trans: fn(uv: vec2, t: float) -> vec4 {
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let a = self.deck_a(uv)
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let b = self.deck_b(uv)
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let gain = 0.5 + self.user.x * 1.5
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let tt = pow(clamp(t, 0.0, 1.0), pow(4.0, self.user.y * 2.0 - 1.0))
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let mult = a.xyz * clamp(b.xyz * gain, vec3(0.0, 0.0, 0.0), vec3(1.0, 1.0, 1.0))
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let luma = dot(b.xyz, vec3(0.2126, 0.7152, 0.0722))
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let gate = mix(1.0, 1.0 - smoothstep(0.25, 0.75, luma), self.user.z)
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let composite = a.xyz.mix(mult, tt * gate)
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return vec4(composite.x, composite.y, composite.z, 1.0)
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}
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}
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}
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