@arcgis/core/views/3d/webgl-engine/lib/ShadowAccumulator.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 t}from"tslib";import e 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,sync as a}from"../../../../core/reactiveUtils.js";import{signal as n}from"../../../../core/signal.js";import{property as h,subclass as c}from"../../../../core/accessorSupport/decorators.js";import{copy as u,equals as l}from"../../../../core/libs/gl-matrix-2/math/vec3.js";import{create as m}from"../../../../core/libs/gl-matrix-2/factories/vec3f64.js";import{ReadShadowMapPassParameters as _}from"../core/shaderLibrary/shading/ReadShadowMap.glsl.js";import{BindParameters as p}from"./BindParameters.js";import{DepthRange as d}from"./DepthRange.js";import{createQuadVAO as f}from"./glUtil3D.js";import{ShadowCastRenderer as g,shadowCastDisabledElevationThreshold as b,shadowCastDisableElevationMax as v,shadowCastDisableElevationMin as S}from"./ShadowCastRenderer.js";import{ShadowMap as w}from"./ShadowMap.js";import{S as y}from"../../../../chunks/ShadowCastAccumulate.glsl.js";import{ShadowCastAccumulateTechnique as F}from"../shaders/ShadowCastAccumulateTechnique.js";import{ShadowCastAccumulateTechniqueConfiguration as A}from"../shaders/ShadowCastAccumulateTechniqueConfiguration.js";import{ShadowCastClearTechnique as x}from"../shaders/ShadowCastClearTechnique.js";import{TaskPriority as R}from"../../../support/Scheduler.js";import{SizedPixelFormat as C,PixelType as j}from"../../../webgl/enums.js";import{FramebufferObject as P}from"../../../webgl/FramebufferObject.js";import{TextureDescriptor as q}from"../../../webgl/TextureDescriptor.js";let T=class extends e{updateDepthRange(t){this._depthRange.equals(t)||(this._depthRange=t)}constructor(t,e,r,i,s,n){super({}),this.fbos=t,this._techniques=e,this._stage=r,this._prepareForShadowMapPass=i,this._renderToShadowMap=s,this._requestRender=n,this._primarySet=new M(new A(0),()=>this._requestRenderIfEnabled()),this._contextSet=new M(new A(1),()=>this._requestRenderIfEnabled()),this._passParameters=new _,this._depthRange=d.Zero,this._previewing=!1,this._shadowAccumulatorKey=Symbol("shadowAccumulator"),this._rctx=t.rctx,this._bindParameters=new p(this._rctx.emptyTexture,new w(t,r.viewingMode)),this._bindParameters.shadowMap.enabled=!0,this._vao=f(this._rctx),this._accumulationRenderer=new g(e,this._rctx,this,n);const h=this._stage.view.resourceController.scheduler;this.addHandles([h.registerTask(R.SHADOW_ACCUMULATOR,this),o(()=>this._previewing,t=>{t?this._invalidateAccumulationSets():this._requestRenderIfEnabled()},a),o(()=>2===this._numActive,()=>this._numActiveChanged(),a),o(()=>this._depthRange,()=>this._invalidateAccumulationSets(),a)],this._shadowAccumulatorKey);for(const o of this._accumulationSets())o.precompile(e)}*_accumulationSets(){yield this._primarySet,yield this._contextSet}normalizeCtorArgs(){return{}}destroy(){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 t of this._accumulationSets())t.destroy();this._contextSet=null,this._primarySet=null,this._bindParameters.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(t=>t.active)}get canAccumulate(){return null!=this._bindParameters.depth&&this._depthRange!==d.Zero&&this._opacityFromElevation>b}get _doneAccumulating(){return[...this._accumulationSets()].every(t=>t.doneAccumulating)}get _opacityFromElevation(){return this._accumulationRenderer.opacityFromElevation}set _opacityFromElevation(t){this._accumulationRenderer.opacityFromElevation=t}get _numActive(){return[...this._accumulationSets()].reduce((t,e)=>t+(e.active?1:0),0)}get _pixelFormat(){return 2===this._numActive?{pixelFormat:33319,internalFormat:C.RG8}:{pixelFormat:6403,internalFormat:C.R8}}get readyToRun(){return this._refining&&this.canAccumulate&&[...this._accumulationSets()].some(t=>t.running)}runTask(t){this._clearBuffersOnAccumulationStart(),this._prepareForShadowMapPass(this._bindParameters);let e=!1;for(const r of this._accumulationSets())this._runTaskForSet(r,t)&&(e=!0);e&&this._requestRender()}_runTaskForSet(t,e){let r=!1;for(;!e.done&&!t.doneAccumulating;)this._accumulateShadow(t),e.madeProgress(),r=!0;return r}renderAccumulation(t,e,r,i){return this._updateCamera(e),this._bindParameters.contentCamera=r,this._bindParameters.depth=t,this._passParameters.origin=this._bindParameters.camera.center,this.notifyChange("canAccumulate"),!(!this.accumulating||!this.canAccumulate)&&(this._previewing||i?(this._clearFramebuffer(),this._reset()):this._clearBuffersOnAccumulationStart(),this._accumulateSetsForRenderFrame(i))}_clearBuffersOnAccumulationStart(){if([...this._accumulationSets()].every(t=>0===t.progress))this._clearFramebuffer();else for(const t of this._accumulationSets())0===t.progress&&this._clearFramebufferForSet(this._fbo,t)}_accumulateSetsForRenderFrame(t){let e=!1;for(const r of this._accumulationSets())this._accumulateSetForRenderFrame(r,t)&&(e=!0);return e&&this._requestRender(),e}_accumulateSetForRenderFrame(t,e){let r=e?t.sampleCount:Math.min(D,t.sampleCount);r-=t.progress;for(let i=0;i<r;++i)this._accumulateShadow(t);return r>0}precompile(){this._accumulationRenderer.precompile()}render(t){this._accumulationRenderer.render(t)}setOptions(t){void 0!==t.previewing&&(this._previewing=t.previewing),void 0!==t.lightDirections&&(this._primarySet.lightDirections=t.lightDirections),void 0!==t.lightDirectionsContext&&(this._contextSet.lightDirections=t.lightDirectionsContext),!0===t.enabled?this._enable():!1===t.enabled&&this._disable(),this._accumulationRenderer.setOptions(t)}readAccumulatedShadow(t,e){const r=this._primarySet.progress;return!this.active||!this._fbo||r<1||t<0||t>=this._fbo.width||e<0||e>=this._fbo.height?0:(this._fbo.readPixels(t,e,1,1,6408,j.UNSIGNED_BYTE,E),E[0]/r)}_numActiveChanged(){if(!this._fbo)return;const t=2===this._numActive,e=this._createFBO();e.resize(this._fbo.width,this._fbo.height),t&&(this._clearFramebuffer(e),this._contextSet.reset()),this._fbo.width&&this._fbo.height&&this._rctx.blitFramebuffer(this._fbo,e),this._fbo.dispose(),this._fbo=e,this._requestRender()}_enable(){this._fbo||(this._fbo=this._createFBO(),this._invalidateAccumulationSets())}_createFBO(){const{pixelFormat:t,internalFormat:e}=this._pixelFormat,r=new q;return r.pixelFormat=t,r.internalFormat=e,r.wrapMode=33071,new P(this._rctx,r)}_invalidateAccumulationSets(){for(const t of this._accumulationSets())t.reset();this._requestRenderIfEnabled()}_disable(){this._fbo&&(this._fbo=s(this._fbo),this._requestRender())}_reset(){for(const t of this._accumulationSets())t.reset()}_clearFramebuffer(t=this._fbo){t&&t.width&&t.height&&(this._rctx.bindFramebuffer(t),this._rctx.setClearColor(0,0,0,0),this._rctx.clear(16384))}_clearFramebufferForSet(t,e){if(!t)return;const r=this._techniques.get(x,e.configuration);this._rctx.bindFramebuffer(t),this._rctx.bindTechnique(r,this._bindParameters,this._passParameters),this._rctx.bindVAO(this._vao),this._rctx.drawArrays(r.primitiveType,0,this._vao.vertexCount("geometry"))}_accumulateShadow(t){this._renderToShadowMap(this._bindParameters,t.lightDirections[t.progress++],this._depthRange);const e=this._techniques.get(F,t.configuration);this._rctx.bindFramebuffer(this._fbo),this._rctx.bindTechnique(e,this._bindParameters,this._passParameters),this._rctx.bindVAO(this._vao),this._rctx.drawArrays(e.primitiveType,0,this._vao.vertexCount("geometry"))}_updateCamera(t){const e=this._fbo;if(null==e)return;const r=this._bindParameters.camera;t.equals(r)||r.copyFrom(t),e.resize(t.fullWidth,t.fullHeight),this._opacityFromElevation=1-i(S,v,t.relativeElevation)}_requestRenderIfEnabled(){this._fbo&&this._requestRender()}get test(){}};t([h()],T.prototype,"_fbo",void 0),t([h()],T.prototype,"_depthRange",void 0),t([h()],T.prototype,"_previewing",void 0),t([h()],T.prototype,"_accumulationRenderer",void 0),t([h()],T.prototype,"_refining",null),t([h()],T.prototype,"active",null),t([h()],T.prototype,"canAccumulate",null),t([h()],T.prototype,"_doneAccumulating",null),t([h()],T.prototype,"_opacityFromElevation",null),t([h()],T.prototype,"_numActive",null),t([h()],T.prototype,"_pixelFormat",null),t([h()],T.prototype,"readyToRun",null),T=t([c("esri.views.3d.webgl-engine.lib.ShadowAccumulator")],T);const D=6,E=new Uint8Array(4);class M{constructor(t,e){this.configuration=t,this._notifyChange=e,this._cachedLightDirections=[],this._progress=n(0),this._sampleCount=n(0)}get progress(){return this._progress.value}set progress(t){this._progress.value=t}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(t){const e=this._cachedLightDirections,i=Math.min(y,t.length);if(!r(e,0,e.length,t,0,i,l)){e.length=i,this._sampleCount.value=i;for(let r=0;r<i;++r)e[r]=u(e[r]??m(),t[r]);this.reset(),this._notifyChange()}}destroy(){this._cachedLightDirections.length=0,this._sampleCount.value=0}reset(){this.progress=0}precompile(t){t.precompile(F,this.configuration),t.precompile(x,this.configuration)}}export{T as ShadowAccumulator};