@arcgis/core/views/3d/environment/Fog.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.19/LICENSE.txt */
import{__decorate as e}from"tslib";import{lerp as t,smoothstep as s}from"../../../core/mathUtils.js";import{watch as r,syncAndInitial as i}from"../../../core/reactiveUtils.js";import{subclass as a}from"../../../core/accessorSupport/decorators.js";import{copy as o,normalize as n,dot as h,scale as m,lerp as c,length as l}from"../../../core/libs/gl-matrix-2/math/vec3.js";import{create as p,fromValues as u}from"../../../core/libs/gl-matrix-2/factories/vec3f64.js";import{getReferenceEllipsoid as g}from"../../../geometry/ellipsoidUtils.js";import{InternalRenderCategory as _}from"../webgl.js";import{F as d}from"../../../chunks/Fog.glsl.js";import{FogTechnique as f}from"./FogTechnique.js";import{FogTechniqueConfiguration as w}from"./FogTechniqueConfiguration.js";import{heightLimit as P}from"./weather.js";import{TransparentEnvironment as b}from"../webgl-engine/effects/TransparentEnvironment.js";import{Blit as v}from"../webgl-engine/effects/blit/Blit.js";import{ColorAttachment1 as y,DepthStencilAttachment as F}from"../../webgl/enums.js";const j=.95,E=1;let R=class extends b{constructor(e){super(e),this._configuration=new w,this._newParameters=new q,this._oldParameters=new q,this._fadedParameters=new q,this._parameters=this._newParameters,this._passParameters=new d,this._blit=null;const t=g(e.view.spatialReference);this._planetRadius=t.radius,this._atmosphereRadius=t.radius+t.atmosphereHeight;const s=e.view.stage.renderView.techniques;s.precompile(f,this._configuration),this._configuration.hasEmissive=!this._configuration.hasEmissive,s.precompile(f,this._configuration),this._configuration.hasEmissive=!this._configuration.hasEmissive}toogle(){this.view.environment.atmosphereEnabled&&this.view.environment.weather?this._enable():this._disable()}initialize(){this.addHandles([r(()=>this.view.environment.atmosphereEnabled,()=>this.toogle(),i),r(()=>this.view.environment.weather,()=>this.toogle(),i),r(()=>this._updateFogParameters(),()=>{},i)]),this.addHandles(r(()=>this._fadeFactor,e=>this._fade(e),i))}get _fadeFactor(){return this.view.stage?.renderer.renderContext.bind.clouds.fadeFactor??1}_fade(e){const{_newParameters:t,_oldParameters:s}=this;e>=1?(this._parameters=t,this._oldParameters.copyFrom(this._newParameters)):e<=0?this._parameters=s:(this._fadedParameters.lerp(s,t,e),this._parameters=this._fadedParameters)}_updateFogParameters(){const e=this.view.environment.weather,s="foggy"===e.type||"snowy"===e.type||"rainy"===e.type;this._newParameters.strength="foggy"===e.type?t(3e-5,.005,e.fogStrength**3):"snowy"===e.type||"rainy"===e.type?t(4e-6,2e-4,(e.precipitation??0)**3):0,this._newParameters.amount=s?1:0,"foggy"!==e.type&&"snowy"!==e.type||o(this._newParameters.color,N),"rainy"===e.type&&o(this._newParameters.color,C),this._fadeFactor>=1&&this._oldParameters.copyFrom(this._newParameters),this.requestRender(2)}render(e){const t=e.find(({name:e})=>e===_.TRANSPARENT_ENVIRONMENT);if(0===this._parameters.amount)return t;if(this._update(),this._passParameters.amount<=0)return t;const s=t.getAttachment(y);this._configuration.hasEmissive=null!=s;const r=this.techniques.get(f,this._configuration);if(!r.compiled)return this.requestRender(1),t;const i=t.getAttachment(F),a=this.renderingContext,{fullWidth:o,fullHeight:n}=this.bindParameters.camera,h=o,m=n;let c=null;return s&&(c=this.fboCache.acquire(h,m,"glow horizontal",8),this._blit??=new v(this.techniques),this._blit.blitTexture(a,s?.attachment,c,this.bindParameters)),t.attachDepth(null),a.bindFramebuffer(t.fbo),s&&(this._passParameters.emission=c?.getTexture()),a.bindTechnique(r,this.bindParameters,this._passParameters),a.screen.draw(),t.attachDepth(i),c?.release(),t}_update(){const e=this.bindParameters.camera;n(x,e.eye);const t=Math.max(0,h(x,this.bindParameters.lighting.mainLight.direction)),r=this._parameters.color;m(T,r,.1),c(this._passParameters.color,T,r,t);const i=l(e.eye);this._passParameters.atmosphereC=i**2-this._atmosphereRadius**2,this._passParameters.amount=(1-s(j*P,E*P,Math.abs(i-this._planetRadius)))*this._parameters.amount,this._passParameters.strength=this._parameters.strength}get test(){return{parameters:this._passParameters}}};R=e([a("esri.views.3d.environment.Fog")],R);class q{constructor(){this.color=p(),this.strength=0,this.amount=0}copyFrom(e){this.amount=e.amount,this.strength=e.strength,o(this.color,e.color)}lerp(e,s,r){this.amount=t(e.amount,s.amount,r),this.strength=t(e.strength,s.strength,r),c(this.color,e.color,s.color,r)}}const x=p(),T=p(),C=u(.5,.5,.5),N=u(1.5,1.5,1.5);export{R as Fog,q as FogParameters};