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
43 lines
1.7 KiB
Text
43 lines
1.7 KiB
Text
// REFRACTION — a procedural glass bump field builds a fake normal from its
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// own gradient; EDGE decides whether the bend applies everywhere or only
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// where the bump gradient is steep, like frosted glass over a picture.
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{
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name: "Refraction"
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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: "DEPTH", bind: "p0", default: 0.5},
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{name: "SCALE", bind: "p1", default: 0.5},
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{name: "EDGE", 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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bump: fn(p: vec2) -> float {
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let freq = 8.0 + 30.0 * self.user.y
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let ph = self.time_beat.x * 0.12
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return sin(p.x * freq + ph) * cos(p.y * freq * 1.3 - ph) + 0.5 * sin((p.x + p.y) * freq * 2.1 + ph * 1.6)
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}
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fx_color: fn(uv: vec2, content: vec4, cmix: float) -> vec4 {
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let eps = 0.0025
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let h0 = self.bump(uv)
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let hx = self.bump(uv + vec2(eps, 0.0))
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let hy = self.bump(uv + vec2(0.0, eps))
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let gx = (hx - h0) / eps
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let gy = (hy - h0) / eps
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let gmag = length(vec2(gx, gy))
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let edge_gain = mix(1.0, clamp(gmag * 0.6, 0.0, 1.0), clamp(self.user.z, 0.0, 1.0))
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let strength = (0.01 + 0.05 * self.user.x) * edge_gain * (0.6 + 0.4 * self.time_beat.w)
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let w = uv + vec2(gx, gy) * strength
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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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let glint = clamp(gmag * 0.4, 0.0, 1.0) * 0.15
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let out = tex.xyz + vec3(glint, glint, glint)
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return vec4(out, 1.0)
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}
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}
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}
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