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
34 lines
1.1 KiB
Text
34 lines
1.1 KiB
Text
// ROTOZOOM — the classic demo-effect spin: the frame rotates and zooms
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// continuously about its centre, wrapped so the picture tiles outward.
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{
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name: "Rotozoom"
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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: "SPIN", bind: "p0", default: 0.5},
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{name: "ZOOM", bind: "p1", default: 0.5},
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{name: "TILE", 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 spin = 0.28 * (0.2 + 1.6 * self.user.x)
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let ang = self.time_beat.x * spin
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let cs = cos(ang)
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let sn = sin(ang)
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let zoom = 0.2 + 1.6 * self.user.y
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let tiles = 0.8 + 2.4 * self.user.z
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let c = uv - vec2(0.5, 0.5)
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let r = vec2(c.x * cs - c.y * sn, c.x * sn + c.y * cs) / zoom
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let w = fract(r * tiles + vec2(0.5, 0.5))
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let tex = self.tex0.sample_as_bgra(w)
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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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