@arcgis/core/views/3d/webgl-engine/lib/ShadowAccumulator.js

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

/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.33/esri/copyright.txt for details.
*/
import{_ as e}from"../../../../chunks/tslib.es6.js";import t from"../../../../core/Accessor.js";import{sliceEquals as r}from"../../../../core/arrayUtils.js";import"../../../../core/has.js";import{smoothstep as i}from"../../../../core/mathUtils.js";import{disposeMaybe as s}from"../../../../core/maybe.js";import{watch as o,syncAndInitial as a,sync as n}from"../../../../core/reactiveUtils.js";import{signal as c}from"../../../../core/signal.js";import{property as h}from"../../../../core/accessorSupport/decorators/property.js";import"../../../../core/Logger.js";import{subclass as u}from"../../../../core/accessorSupport/decorators/subclass.js";import{c as m,G as l}from"../../../../chunks/vec32.js";import{create as _}from"../../../../core/libs/gl-matrix-2/factories/vec3f64.js";import{ReadShadowMapPassParameters as p}from"../core/shaderLibrary/shading/ReadShadowMap.glsl.js";import{BindParameters as d}from"./BindParameters.js";import{DepthRange as f}from"./DepthRange.js";import{createQuadVAO as g}from"./glUtil3D.js";import{ShadowCastRenderer as b,shadowCastDisabledElevationThreshold as v,shadowCastDisableElevationMax as S,shadowCastDisableElevationMin as w}from"./ShadowCastRenderer.js";import{ShadowMap as F}from"./ShadowMap.js";import{S as y}from"../../../../chunks/ShadowCastAccumulate.glsl.js";import{ShadowCastAccumulateTechnique as A}from"../shaders/ShadowCastAccumulateTechnique.js";import{ShadowCastAccumulateTechniqueConfiguration as R,ShadowCastAccumulateIndex as x}from"../shaders/ShadowCastAccumulateTechniqueConfiguration.js";import{ShadowCastClearTechnique as C}from"../shaders/ShadowCastClearTechnique.js";import{TaskPriority as j}from"../../../support/Scheduler.js";import{SizedPixelFormat as P,PixelFormat as q,PixelType as D,TextureWrapMode as T,FramebufferBit as E}from"../../../webgl/enums.js";import{FramebufferObject as O}from"../../../webgl/FramebufferObject.js";import{TextureDescriptor as M}from"../../../webgl/TextureDescriptor.js";import{vertexCount as B}from"../../../webgl/Util.js";let L=class extends t{updateDepthRange(e){this._depthRange.equals(e)||(this._depthRange=e)}constructor(e,t,r,i,s,c){super({}),this.fbos=e,this._techniques=t,this._stage=r,this._prepareForShadowMapPass=i,this._renderToShadowMap=s,this._requestRender=c,this._primarySet=new G(new R(x.PRIMARY),(()=>this._requestRenderIfEnabled())),this._contextSet=new G(new R(x.CONTEXT),(()=>this._requestRenderIfEnabled())),this._passParameters=new p,this._depthRange=f.zero,this._previewing=!1,this._cameraForcedForScreenshot=!1,this._shadowAccumulatorKey=Symbol("shadowAccumulator"),this._rctx=e.rctx,this._bindParameters=new d(new F(e,r.viewingMode)),this._bindParameters.shadowMap.enabled=!0,this._vao=g(this._rctx),this._accumulationRenderer=new b(t,this._rctx,this,c);const h=this._stage.view.resourceController.scheduler;this.addHandles([h.registerTask(j.SHADOW_ACCUMULATOR,this),o((()=>r.renderView),(e=>{this.removeHandles(I),null!=e&&this.addHandles(e.events.on("force-camera-for-screenshot",(()=>this._cameraForcedForScreenshot=!0)),I)}),a),o((()=>this._previewing),(()=>this._requestRenderIfEnabled()),n),o((()=>2===this._numActive),(()=>this._numActiveChanged()),n),o((()=>this._depthRange),(()=>this._invalidateAccumulationSets()),n)],this._shadowAccumulatorKey);for(const o of this._accumulationSets())o.precompile(t)}*_accumulationSets(){yield this._primarySet,yield this._contextSet}normalizeCtorArgs(){return{}}dispose(){this._disable(),this.removeHandles(this._shadowAccumulatorKey),this._accumulationRenderer=s(this._accumulationRenderer),this._bindParameters.shadowMap.dispose(),this._fbo=s(this._fbo),this._vao=s(this._vao);for(const e of this._accumulationSets())e.destroy()}get computedSamples(){return[this._primarySet.progress,this._contextSet.progress]}get shadowCastTexture(){return this._fbo?.colorTexture}get accumulating(){return this.active&&this._previewing||this._refining}get _refining(){return this.active&&!this._doneAccumulating&&!this._previewing}get active(){return null!=this._fbo&&[...this._accumulationSets()].some((e=>e.active))}get canAccumulate(){return null!=this._bindParameters.depth&&this._depthRange!==f.zero&&this._opacityFromElevation>v}get _doneAccumulating(){return[...this._accumulationSets()].every((e=>e.doneAccumulating))}get _opacityFromElevation(){return this._accumulationRenderer.opacityFromElevation}set _opacityFromElevation(e){this._accumulationRenderer.opacityFromElevation=e}get _numActive(){return[...this._accumulationSets()].reduce(((e,t)=>e+(t.active?1:0)),0)}get _pixelFormat(){return 2===this._numActive?{pixelFormat:q.RG,internalFormat:P.RG8}:{pixelFormat:q.RED,internalFormat:P.R8}}get running(){return this._refining&&this.canAccumulate&&[...this._accumulationSets()].some((e=>e.running))}runTask(e){this._clearBuffersOnAccumulationStart(),this._prepareForShadowMapPass(this._bindParameters);let t=!1;for(const r of this._accumulationSets())this._runTaskForSet(r,e)&&(t=!0);t&&this._requestRender()}_runTaskForSet(e,t){let r=!1;for(;!t.done&&!e.doneAccumulating;)this._accumulateShadow(e),t.madeProgress(),r=!0;return r}renderAccumulation(e,t,r){if(this._updateCamera(t),this._bindParameters.contentCamera=r,this._bindParameters.depth=e,this._passParameters.origin=this._bindParameters.camera.center,this.notifyChange("canAccumulate"),!this.accumulating||!this.canAccumulate)return!1;this._previewing||this._cameraForcedForScreenshot?(this._clearFramebuffer(),this._reset()):this._clearBuffersOnAccumulationStart();const i=this._accumulateSetsForRenderFrame();return this._cameraForcedForScreenshot=!1,i}_clearBuffersOnAccumulationStart(){if([...this._accumulationSets()].every((e=>0===e.progress)))this._clearFramebuffer();else for(const e of this._accumulationSets())0===e.progress&&this._clearFramebufferForSet(this._fbo,e)}_accumulateSetsForRenderFrame(){let e=!1;for(const t of this._accumulationSets())this._accumulateSetForRenderFrame(t)&&(e=!0);return e&&this._requestRender(),e}_accumulateSetForRenderFrame(e){let t=this._cameraForcedForScreenshot?e.sampleCount:Math.min(U,e.sampleCount);t-=e.progress;for(let r=0;r<t;++r)this._accumulateShadow(e);return t>0}precompile(){this._accumulationRenderer.precompile()}render(e){this._accumulationRenderer.render(e)}setOptions(e){void 0!==e.previewing&&(this._previewing=e.previewing),void 0!==e.lightDirections&&(this._primarySet.lightDirections=e.lightDirections),void 0!==e.lightDirectionsContext&&(this._contextSet.lightDirections=e.lightDirectionsContext),!0===e.enabled?this._enable():!1===e.enabled&&this._disable(),this._accumulationRenderer.setOptions(e)}readAccumulatedShadow(e,t){const r=this._primarySet.progress;return!this.active||!this._fbo||r<1||e<0||e>=this._fbo.width||t<0||t>=this._fbo.height?0:(this._fbo.readPixels(e,t,1,1,q.RGBA,D.UNSIGNED_BYTE,k),k[x.PRIMARY]/r)}_numActiveChanged(){if(!this._fbo)return;const e=2===this._numActive,t=this._createFBO();t.resize(this._fbo.width,this._fbo.height),e&&(this._clearFramebuffer(t),this._contextSet.reset()),this._fbo.width&&this._fbo.height&&this._rctx.blitFramebuffer(this._fbo,t),this._fbo.dispose(),this._fbo=t,this._requestRender()}_enable(){this._fbo||(this._fbo=this._createFBO(),this._invalidateAccumulationSets())}_createFBO(){const{pixelFormat:e,internalFormat:t}=this._pixelFormat,r=new M;return r.pixelFormat=e,r.internalFormat=t,r.wrapMode=T.CLAMP_TO_EDGE,new O(this._rctx,r)}_invalidateAccumulationSets(){for(const e of this._accumulationSets())e.reset();this._requestRenderIfEnabled()}_disable(){this._fbo&&(this._fbo=s(this._fbo),this._requestRender())}_reset(){for(const e of this._accumulationSets())e.reset()}_clearFramebuffer(e=this._fbo){e&&e.width&&e.height&&(this._rctx.bindFramebuffer(e),this._rctx.setClearColor(0,0,0,0),this._rctx.clear(E.COLOR))}_clearFramebufferForSet(e,t){if(!e)return;const r=this._techniques.get(C,t.configuration);this._rctx.bindFramebuffer(e),this._rctx.bindTechnique(r,this._bindParameters,this._passParameters),this._rctx.bindVAO(this._vao),this._rctx.drawArrays(r.primitiveType,0,B(this._vao,"geometry"))}_accumulateShadow(e){this._renderToShadowMap(this._bindParameters,e.lightDirections[e.progress++],this._depthRange);const t=this._techniques.get(A,e.configuration);this._rctx.bindFramebuffer(this._fbo),this._rctx.bindTechnique(t,this._bindParameters,this._passParameters),this._rctx.bindVAO(this._vao),this._rctx.drawArrays(t.primitiveType,0,B(this._vao,"geometry"))}_updateCamera(e){const t=this._fbo;if(null==t)return;const r=this._bindParameters.camera;e.equals(r)||r.copyFrom(e),t.resize(e.fullWidth,e.fullHeight),this._opacityFromElevation=1-i(w,S,e.relativeElevation)}_requestRenderIfEnabled(){this._fbo&&this._requestRender()}get test(){}};e([h()],L.prototype,"_fbo",void 0),e([h()],L.prototype,"_depthRange",void 0),e([h()],L.prototype,"_previewing",void 0),e([h()],L.prototype,"_accumulationRenderer",void 0),e([h()],L.prototype,"_refining",null),e([h()],L.prototype,"active",null),e([h()],L.prototype,"canAccumulate",null),e([h()],L.prototype,"_doneAccumulating",null),e([h()],L.prototype,"_opacityFromElevation",null),e([h()],L.prototype,"_numActive",null),e([h()],L.prototype,"_pixelFormat",null),e([h()],L.prototype,"running",null),L=e([u("esri.views.3d.webgl-engine.lib.ShadowAccumulator")],L);const U=6,I="renderView",k=new Uint8Array(4);class G{constructor(e,t){this.configuration=e,this._notifyChange=t,this._cachedLightDirections=[],this._progress=c(0),this._sampleCount=c(0)}get progress(){return this._progress.value}set progress(e){this._progress.value=e}get sampleCount(){return this._sampleCount.value}get doneAccumulating(){return this.progress>=this.sampleCount}get running(){return this.progress>0}get active(){return this.sampleCount>0}get lightDirections(){return this._cachedLightDirections}set lightDirections(e){const t=this._cachedLightDirections,i=Math.min(y,e.length);if(!r(t,0,t.length,e,0,i,l)){t.length=i,this._sampleCount.value=i;for(let r=0;r<i;++r)t[r]=m(t[r]??_(),e[r]);this.reset(),this._notifyChange()}}destroy(){this._cachedLightDirections.length=0,this._sampleCount.value=0}reset(){this.progress=0}precompile(e){e.precompile(A,this.configuration),e.precompile(C,this.configuration)}}export{L as ShadowAccumulator};