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

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

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import{__decorate as e}from"tslib";import{lerp as t,clamp as r}from"../../../core/mathUtils.js";import{disposeMaybe as s}from"../../../core/maybe.js";import{watch as i,initial as o}from"../../../core/reactiveUtils.js";import{subclass as a}from"../../../core/accessorSupport/decorators.js";import{lookAt as n}from"../../../core/libs/gl-matrix-2/math/mat4.js";import{create as m}from"../../../core/libs/gl-matrix-2/factories/mat4f64.js";import{set as h}from"../../../core/libs/gl-matrix-2/math/vec2.js";import{length as p,scale as c,add as l,distance as u,cross as _,squaredLength as f}from"../../../core/libs/gl-matrix-2/math/vec3.js";import{create as d}from"../../../core/libs/gl-matrix-2/factories/vec3f64.js";import{getReferenceEllipsoid as g}from"../../../geometry/ellipsoidUtils.js";import{newFloatArray as x}from"../../../geometry/support/FloatArray.js";import{InternalRenderCategory as b}from"../webgl.js";import{computeInnerAltitudeFade as j,innerAtmosphereDepth as V}from"./atmosphereUtils.js";import{S as w}from"../../../chunks/SimpleAtmosphere.glsl.js";import{SimpleAtmosphereTechnique as v,layout as P}from"./SimpleAtmosphereTechnique.js";import{SimpleAtmosphereTechniqueConfiguration as R}from"./SimpleAtmosphereTechniqueConfiguration.js";import{marsAtmosphereTextureSimple as A}from"./resources/MarsAtmosphereTexture.js";import{makePiecewiseLinearFunction as y}from"../support/mathUtils.js";import{glLayout as S}from"../support/buffer/glUtil.js";import{OpaqueEnvironment as q}from"../webgl-engine/effects/OpaqueEnvironment.js";import{createQuadVAO as F}from"../webgl-engine/lib/glUtil3D.js";import{project as M}from"../webgl-engine/lib/Util.js";import{VertexArrayObject as T}from"../webgl-engine/lib/VertexArrayObject.js";import{PrimitiveType as U}from"../../webgl/enums.js";import E from"../../webgl/Texture.js";import{TextureDescriptor as O}from"../../webgl/TextureDescriptor.js";import{VertexBuffer as N}from"../../webgl/VertexBuffer.js";const C=128,I=-V,W=0,B=50,D=()=>1-511/512,G=y([[50,.1015625],[500,.21875],[5e3,1-250/512],[5e4,.4140625]]);let L=class extends q{constructor(e){super(e),this._passParameters=new w,this._configuration=new R,this._vao=null,this._fadeVao=null,this._texV1=1;const t=e.view,r=g(t.spatialReference),{outerAtmosphereRimWidth:s,radius:i}=r;this._planetRadius=i,this._innerRimFactor=1+I/i,this._middleRimFactor=1+W/i,this._outerRimFactor=1+s/i,this._texV0=W/s,this._texVScale=this._texV1-this._texV0;const o=t.stage.renderView.techniques;o.precompile(v,this._configuration),this._configuration.geometry=2,o.precompile(v,this._configuration)}initialize(){this.addHandles(i(()=>this.view.environment.atmosphereEnabled,e=>e?this._enable():this._disable(),o))}destroy(){this._passParameters.texture=s(this._passParameters.texture),this._fadeVao=s(this._fadeVao),this._vao=s(this._vao)}render(e){const t=e.find(({name:e})=>e===b.OPAQUE_ENVIRONMENT);this._update();const r=this.renderingContext;if(!this._passParameters.texture){const e=new O(1,512);e.wrapMode=33071,e.flipped=!0,this._passParameters.texture=new E(r,e,A)}if(this._passParameters.undergroundFadeAlpha<1){this._vao??=this._createRibbon(r),this._configuration.geometry=0;const e=this.techniques.get(v,this._configuration);if(!e.compiled)return this.requestRender(1),t;r.bindTechnique(e,this.bindParameters,this._passParameters),r.bindVAO(this._vao),r.drawArrays(U.TRIANGLES,0,this._vao.vertexCount("geometry"))}if(this._passParameters.undergroundFadeAlpha>0){this._fadeVao??=F(r),this._configuration.geometry=2;const e=this.techniques.get(v,this._configuration);if(!e.compiled)return this.requestRender(1),t;r.bindTechnique(e,this.bindParameters,this._passParameters),r.bindVAO(this._fadeVao),r.drawArrays(U.TRIANGLE_STRIP,0,this._fadeVao.vertexCount("geometry"))}return t}_update(){const e=this.bindParameters.camera,s=d(),i=this._planetRadius,o=p(e.eye),a=o-i;if(a<0){const e=Math.min(-a/5e3,1);this._passParameters.undergroundFadeAlpha=e}else this._passParameters.undergroundFadeAlpha=0;const n=Math.max(B,a),m=i+I;this._passParameters.innerScale=J(i+n,i,m)-1,this._passParameters.altitudeFade=j(a),c(s,e.eye,(i+B)/o),k(s,e.center,e.up,i,this._passParameters.silhouette);const l=this._computeScreenRimWidth(e,s,e.up,this._passParameters.silhouette),u=D(),_=G(a);let f=this._texV0+u*this._texVScale,g=this._texV0+l*_*this._texVScale;if(a>B){k(e.eye,e.center,e.up,i,this._passParameters.silhouette);const s=this._computeScreenRimWidth(e,e.eye,e.up,this._passParameters.silhouette),o=r((s-1.5)/(l-1.5),0,1);f=this._texV0+o*u*this._texVScale,g=this._texV0+t(this._texV1,l*_,o)*this._texVScale}h(this._passParameters.texV,f,g)}_createRibbon(e){const t=x(3+3*C*3),r=new Uint32Array(3*C*5);t[0]=0,t[1]=0,t[2]=-1;for(let o=0;o<C;o++){const e=9*o+3;t[e]=o,t[e+1]=this._innerRimFactor,t[e+2]=-1,t[e+3]=o,t[e+4]=this._middleRimFactor,t[e+5]=0,t[e+6]=o,t[e+7]=this._outerRimFactor,t[e+8]=1;const s=3*o+1,i=o===C-1?1:s+3,a=15*o;r[a]=s,r[a+1]=s+1,r[a+2]=i+1,r[a+3]=i+1,r[a+4]=i,r[a+5]=s,r[a+6]=s+1,r[a+7]=s+2,r[a+8]=i+2,r[a+9]=i+2,r[a+10]=i+1,r[a+11]=s+1,r[a+12]=s,r[a+13]=i,r[a+14]=0}const s=P.createBuffer(r.length),i=s.position;for(let o=0;o<r.length;++o){const e=3*r[o];i.set(o,0,t[e]),i.set(o,1,t[e+1]),i.set(o,2,t[e+2])}return new T(e,new N(e,S(P),s.buffer))}_computeScreenRimWidth(e,t,r,s){return l(H,s.center,s.v2),c(Q,H,this._outerRimFactor),n(z,t,H,r),M(H,z,e.projectionMatrix,e.viewport,H),M(Q,z,e.projectionMatrix,e.viewport,Q),u(H,Q)/e.height}};function k(e,t,r,s,i){const o=p(e),a=s*Math.sqrt(o*o-s*s)/o,n=Math.sqrt(s*s-a*a),m=i.v1,h=i.v2;return c(i.center,e,n/o),_(m,e,t),f(m)<1&&_(m,e,r),c(m,m,a/p(m)),_(h,m,e),c(h,h,a/p(h)),a}L=e([a("esri.views.3d.environment.MarsAtmosphere")],L);const z=m(),H=d(),Q=d();function J(e,t,r){return e*e/(Math.sqrt(e*e-t*t)*Math.sqrt(e*e-r*r)+t*r)}export{L as MarsAtmosphere};