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
37 lines
1.3 KiB
Text
37 lines
1.3 KiB
Text
// VORTEX — the frame sucks around a pivot that sits off-centre and drifts
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// slowly on an ellipse; rotation is strongest near the pivot and fades out.
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{
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name: "Vortex"
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engine: "screen"
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input0: "test"
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p0: 0.5 p1: 0.5 p2: 0.5
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dials: [
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{name: "STRENGTH", bind: "p0", default: 0.5},
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{name: "REACH", bind: "p1", default: 0.5},
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{name: "DRIFT", bind: "p2", default: 0.5}
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]
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stages: [
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{kind: "bloom", threshold: 0.6, strength: 1.05, levels: 2}
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]
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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 speed = 0.06 + 0.3 * self.user.z
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let pang = self.time_beat.x * speed
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let pivot = vec2(0.5, 0.5) + vec2(cos(pang), sin(pang) * 0.8) * 0.16
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let d = uv - pivot
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let r = length(d)
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let reach = 0.22 + 0.4 * self.user.y
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let falloff = clamp(1.0 - r / reach, 0.0, 1.0)
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let spin = falloff * falloff * (3.0 + 7.0 * self.user.x) * (0.5 + 0.5 * self.time_beat.w)
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let cs = cos(spin)
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let sn = sin(spin)
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let rd = vec2(d.x * cs - d.y * sn, d.x * sn + d.y * cs)
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let w = pivot + rd
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let tex = self.tex0.sample_as_bgra(clamp(w, vec2(0.0, 0.0), vec2(1.0, 1.0)))
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return vec4(tex.xyz, 1.0)
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}
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}
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}
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