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.
58 lines
2 KiB
Text
58 lines
2 KiB
Text
// STORM CELL — the dark twin of Cumulus Drift: slate cloud clusters roll
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// through the frame and LIGHTNING fires inside them on the kick. Pattern
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// taught here: flash-via-binding — `beat_pulse` is gated so only every
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// second beat strikes hard (fract(beat*0.5) selects them), and the
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// subclassed fx_color turns that pulse into interior illumination plus a
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// white col_c strike, so thunderheads glow from within instead of merely
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// brightening.
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{
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name: "Storm Cell"
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engine: "particles"
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mode: "clouds"
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seed: 66
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count: 1600
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spread: 9.0
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size: 1.0
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rate: 0.015
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swirl: 1.4
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// The lightning gate: full strike on beats 1 and 3, near-dark between.
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// STRIKE (p0) scales the whole gate; mid-knob = the stock storm.
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beat_pulse: "(0.3 + 2.9 * step(0.45, fract(beat * 0.5))) * (0.2 + 1.6*p0)"
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beat_rate: 1.0
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p0: 0.5 p1: 0.5 p2: 0.5
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dials: [
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{name: "STRIKE", bind: "p0", default: 0.5},
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{name: "TRAIL", bind: "p1", default: 0.5},
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{name: "GLOW", bind: "p2", default: 0.5}
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]
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color_bg: #x05060a
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color_a: #x2a3038
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color_b: #x11151d
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color_c: #xcfe0ff
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cam_dist: 19.0
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cam_height: 1.0
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cam_orbit: 0.025
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fog: 0.012
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// Interior illumination: the pulse (already gated by beat_pulse) is the
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// strike envelope; squaring it sharpens the flash into a flicker.
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shader: draw.DrawVjFxParticles {
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fx_color: fn(t: float, attr: vec4, normal: vec3, wpos: vec3) -> vec4 {
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let body = self.col_a.mix(self.col_b, attr.z)
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let strike = self.time_beat.w
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let lit = 0.22 + strike * 1.6
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let bolt = self.col_c.xyz * (strike * strike * 0.85)
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let fade = (1.0 - t) * smoothstep(0.0, 0.08, t)
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return vec4(body.xyz * lit + bolt, fade)
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}
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}
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stages: [
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{kind: "feedback", amount: "min(0.4 + (p1-0.5)*0.8, 0.97)", zoom: 1.002, rotate: 0.0, dim: 0.96},
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{kind: "bloom", threshold: "0.75 - 0.35 * pulse", strength: "1.1 * (0.25 + 1.5*p2)", levels: 3}
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]
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}
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