@takram/three-atmosphere/build/index.js

A Three.js and R3F implementation of Precomputed Atmospheric Scattering

import { A as G, c as P, d as L, D as X, s as g, j as h, I as y, v as x, M as H, P as v, p as B, o as F, k as d, l as k, m as Z, S as w, n as O, r as b, x as z, z as V, B as W, E as Y, G as j, q, T as K, a as J, b as Q, t as $, g as ee, i as ae, f as te, h as se, e as re, u as Te, w as oe, y as Ee, C as ne, F as ie } from "./shared.js";
import { Color as R, Vector3 as S, Matrix3 as u } from "three";
import { saturate as i, clamp as A } from "@takram/three-geospatial";
const D = /* @__PURE__ */ new S(), l = /* @__PURE__ */ new u(
  3.2404542,
  -1.5371385,
  -0.4985314,
  -0.969266,
  1.8760108,
  0.041556,
  0.0556434,
  -0.2040259,
  1.0572252
);
function m(a, r = new R()) {
  const t = a, T = t ** 2, o = (0.860117757 + 154118254e-12 * t + 128641212e-15 * T) / (1 + 842420235e-12 * t + 708145163e-15 * T), E = (0.317398726 + 422806245e-13 * t + 420481691e-16 * T) / (1 - 289741816e-13 * t + 161456053e-15 * T), c = 3 * o / (2 * o - 8 * E + 4), s = 2 * E / (2 * o - 8 * E + 4), n = 1, _ = s > 0 ? c * n / s : 0, I = s > 0 ? (1 - c - s) * n / s : 0, e = D.set(_, n, I).applyMatrix3(l);
  return e.x = i(e.x), e.y = i(e.y), e.z = i(e.z), r.setFromVector3(e.normalize());
}
function C(a) {
  return 4600 * (1 / (0.92 * A(a, -0.4, 2) + 1.7) + 1 / (0.92 * a + 0.62));
}
function M(a, r = new R()) {
  return m(
    C(a),
    r
  );
}
export {
  G as AerialPerspectiveEffect,
  P as AtmosphereMaterialBase,
  L as AtmosphereParameters,
  X as DEFAULT_PRECOMPUTED_TEXTURES_URL,
  g as DEFAULT_STARS_DATA_URL,
  h as IRRADIANCE_TEXTURE_HEIGHT,
  y as IRRADIANCE_TEXTURE_WIDTH,
  x as IrradianceMaskPass,
  H as METER_TO_LENGTH_UNIT,
  v as PrecomputedTexturesLoader,
  B as SCATTERING_TEXTURE_DEPTH,
  F as SCATTERING_TEXTURE_HEIGHT,
  d as SCATTERING_TEXTURE_MU_SIZE,
  k as SCATTERING_TEXTURE_MU_S_SIZE,
  Z as SCATTERING_TEXTURE_NU_SIZE,
  w as SCATTERING_TEXTURE_R_SIZE,
  O as SCATTERING_TEXTURE_WIDTH,
  b as SKY_RENDER_ORDER,
  z as SkyLightProbe,
  V as SkyMaterial,
  W as StarsGeometry,
  Y as StarsMaterial,
  j as SunDirectionalLight,
  q as TRANSMITTANCE_TEXTURE_HEIGHT,
  K as TRANSMITTANCE_TEXTURE_WIDTH,
  J as aerialPerspectiveEffectOptionsDefaults,
  Q as atmosphereMaterialParametersBaseDefaults,
  M as convertBVIndexToLinearSRGBChromaticity,
  m as convertTemperatureToLinearSRGBChromaticity,
  $ as getAltitudeCorrectionOffset,
  ee as getECIToECEFRotationMatrix,
  ae as getMoonDirectionECEF,
  te as getMoonDirectionECI,
  se as getSunDirectionECEF,
  re as getSunDirectionECI,
  Te as getSunLightColor,
  oe as skyLightProbeParametersDefaults,
  Ee as skyMaterialParametersDefaults,
  ne as starsMaterialParametersDefaults,
  ie as sunDirectionalLightParametersDefaults
};
//# sourceMappingURL=index.js.map