Jerry
52 lines
2.2 KiB
JavaScript
52 lines
2.2 KiB
JavaScript
const GLSL = `
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float sdf(vec3 p) {
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vec3 q = implicit_rotate_axis(p, vec3(0.0), vec3(0.0, 0.0, 1.0), twistBlend * 0.45);
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float field = implicit_tpms_diamond(q, vec3(period), vec3(1.0), twistBlend);
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float shell = implicit_shell(field * period * 0.15, wallThickness, 0.0);
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float cube = implicit_box_centered(p, vec3(cellSize), vec3(0.0));
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return implicit_intersect_round(shell, cube, 1.35);
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}
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vec3 color(vec3 p, vec3 normal) {
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float diagonal = 0.5 + 0.5 * sin((p.x + p.y + p.z) / max(period, 0.1) * 6.2831853);
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float crossBand = 0.5 + 0.5 * sin((p.x - p.y + p.z * 0.65) / max(period, 0.1) * 6.2831853 + 1.7);
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float channel = smoothstep(0.48, 0.96, abs(dot(normal, normalize(vec3(1.0, -1.0, 1.0)))));
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vec3 gold = vec3(1.0, 0.88, 0.18);
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vec3 mint = vec3(0.18, 1.0, 0.72);
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vec3 body = mix(baseColor, accentColor, diagonal);
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body = mix(body, mint, crossBand * 0.34);
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body = mix(body, gold, channel * 0.52);
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return mix(body, vec3(1.0), 0.10 + channel * 0.08);
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}
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`;
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export default {
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schema: "implicit.js/0.1.0",
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name: "schwarz d diamond cell",
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description: "Prompt 7: Schwarz diamond minimal surface with uniform wall thickness.",
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units: "mm",
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params: {
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cellSize: { type: "number", label: "Cell size", min: 30, max: 78, step: 1, default: 54, unit: "mm" },
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period: { type: "number", label: "Period", min: 12, max: 34, step: 0.5, default: 21, unit: "mm" },
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wallThickness: { type: "number", label: "Wall thickness", min: 0.8, max: 6, step: 0.1, default: 2.1, unit: "mm" },
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twistBlend: { type: "number", label: "Twist blend", min: 0, max: 1, step: 0.02, default: 0.08 },
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baseColor: { type: "color", label: "Diamond color", default: "#00d9ff" },
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accentColor: { type: "color", label: "Channel color", default: "#ff4fd8" }
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},
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animations: {
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diamondPhase: {
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label: "Diamond phase",
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duration: 6.2,
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loop: true,
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update({ progress, set }) {
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const wave = Math.sin(progress * Math.PI * 2);
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set("twistBlend", 0.05 + (wave * 0.5 + 0.5) * 0.65);
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set("wallThickness", 1.6 + (1 - Math.abs(wave)) * 3.2);
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}
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}
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},
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bounds: [[-44, -44, -44], [44, 44, 44]],
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render: { steps: 300, epsilon: 0.005, normalEpsilon: 0.052 },
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glsl: GLSL
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};
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