@arcgis/core
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ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API
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JavaScript
/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.32/esri/copyright.txt for details.
*/
import{clamp as t}from"../../../../core/mathUtils.js";import{v as n,i as o,c as r}from"../../../../chunks/vec32.js";import{create as e}from"../../../../core/libs/gl-matrix-2/factories/vec3f64.js";import{elementwiseProduct as i,scalarProduct as s,add as c}from"../lib/LongVectorMath.js";import{MainLight as f,FillLight as h,AmbientLight as a,SphericalHarmonicsAmbientLight as g}from"./Lightsources.js";function u(t){return(t+1)*(t+1)}function l(n){return t(Math.floor(Math.sqrt(n)-1),0,2)}function m(t,n,o){const r=t[0],e=t[1],i=t[2],s=o||[];return s.length=u(n),n>=0&&(s[0]=.28209479177),n>=1&&(s[1]=.4886025119*r,s[2]=.4886025119*i,s[3]=.4886025119*e),n>=2&&(s[4]=1.09254843059*r*e,s[5]=1.09254843059*e*i,s[6]=.31539156525*(3*i*i-1),s[7]=1.09254843059*r*i,s[8]=.54627421529*(r*r-e*e)),s}function p(t,n){const o=u(t),r=n||{r:[],g:[],b:[]};r.r.length=r.g.length=r.b.length=o;for(let e=0;e<o;e++)r.r[e]=r.g[e]=r.b[e]=0;return r}function b(t,o){const r=l(o.r.length);for(const e of t)n(P,e.direction),m(P,r,v),i(v,w),s(v,e.intensity[0],I),c(o.r,I),s(v,e.intensity[1],I),c(o.g,I),s(v,e.intensity[2],I),c(o.b,I);return o}function y(t,n){m(P,0,v);for(const o of t)n.r[0]+=v[0]*w[0]*o.intensity[0]*4*Math.PI,n.g[0]+=v[0]*w[0]*o.intensity[1]*4*Math.PI,n.b[0]+=v[0]*w[0]*o.intensity[2]*4*Math.PI;return n}function M(t,n,e,i){p(n,i),o(e.intensity,0,0,0);let s=!1;const u=S,l=d,m=j;u.length=0,l.length=0,m.length=0;for(const o of t)o instanceof f&&!s?(r(e.direction,o.direction),r(e.intensity,o.intensity),e.specularStrength=o.specularStrength,e.environmentStrength=o.environmentStrength,e.castShadows=o.castShadows,s=!0):o instanceof f||o instanceof h?u.push(o):o instanceof a?l.push(o):o instanceof g&&m.push(o);b(u,i),y(l,i);for(const o of m)c(i.r,o.r),c(i.g,o.g),c(i.b,o.b)}const S=[],d=[],j=[],v=[0],I=[0],P=e(),w=[3.141593,2.094395,2.094395,2.094395,.785398,.785398,.785398,.785398,.785398];export{M as combineLights,m as computeCoefficients,p as initSHCoefficients,u as numberOfCoefficients,l as orderFromNumberOfCoefficients,y as projectAmbientLights,b as projectFillLights};