d8d5ea8b6a
Restore missing required asset/flow packages from the pinned nigig revision; retain upstream script isolation, X11 hover, and widget-core fixes. Validated makepad-widgets data feature with Rust 1.97.1.
70 lines
2.5 KiB
Text
70 lines
2.5 KiB
Text
// BALL — the two-deck transition where the outgoing picture curls into a
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// video ball and rolls away: at the A end the frame is exactly deck A; as
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// the fader travels, a sphere wrapped in deck A inflates and rolls across
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// while the backdrop dissolves to deck B underneath; at the B end the ball
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// has shrunk to nothing and the frame is exactly deck B. ROLL spins the
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// ball harder, ARC lifts its flight. Pattern taught here: the videomesh
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// two-deck contract — `decks: 2` + `backdrop: 1`, every hook a function of
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// the crossfader (self.user.w), scale zero at both ends keeping the
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// endpoints pop-free.
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{
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name: "Ball"
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engine: "videomesh"
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shape: "sphere"
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seed: 2
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detail: 40
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size: 2.4
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spread: 0.0
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decks: 2
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backdrop: 1
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fly: 0.05
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alt: 0.0
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beat_pulse: 0.2
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fog: 0.0
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glow: 1.0
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// Gallery/thumbnail preview sweep — in the VJ the host overrides p3
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// with the real crossfader.
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p3: "0.5 - 0.5*cos(6.28318*fract(beat/16.0))"
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dials: [
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{name: "ROLL", bind: "p0", default: 0.3},
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{name: "ARC", bind: "p1", default: 0.4}
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]
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color_bg: #x000000
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color_a: #x40c8f0
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color_b: #xe84f9a
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color_c: #xffffff
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// THE LOOK LIVES HERE — the whole transition: backdrop deck mix,
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// ball flight, ball shading. t in fx_backdrop = the crossfader.
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shader: draw.DrawVjFxVideomesh {
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fx_axis: fn(id: float, hash: float) -> vec3 {
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return vec3(0.0, 0.0, 1.0)
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}
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fx_scale: fn(id: float, hash: float, t: float) -> float {
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let k = clamp(self.user.w, 0.0, 1.0)
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return 4.0 * k * (1.0 - k) * (1.0 + self.time_beat.w * 0.05)
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}
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fx_place: fn(id: float, hash: float, t: float) -> vec4 {
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let k = clamp(self.user.w, 0.0, 1.0)
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let x = (k * 2.0 - 1.0) * 3.4
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let y = sin(3.14159 * k) * (0.1 + 1.0 * clamp(self.user.y, 0.0, 2.0)) - 0.3
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let ang = 0.0 - k * (5.5 + 5.0 * clamp(self.user.x, 0.0, 2.0))
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return vec4(x, y, 0.0, ang)
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}
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fx_backdrop: fn(uv: vec2, t: float) -> vec4 {
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let m = smoothstep(0.22, 0.78, t)
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let a = self.deck_a(uv)
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let b = self.deck_b(uv)
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return vec4(a.xyz.mix(b.xyz, m), 1.0)
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}
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fx_color: fn(t: float, attr: vec4, content: vec4, cmix: float) -> vec4 {
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let sheen = self.col_c.xyz * pow(clamp(t - 0.9, 0.0, 1.0), 2.0) * 0.6
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return vec4(content.xyz * (0.35 + 0.75 * t) + sheen, 1.0)
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}
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}
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}
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