feat(web): visualizer supports shadow map

[airslice]

Overview

Add shadow map support for beta.

What I've done

add:

type SceneProperty = {
  atmosphere?: {
    // ...
    shadowResolution?: 1024 | 2048 | 4096,
    softShadow?: boolean,
    shadowDarkness?: number,
  };
};

What I haven't done

How I tested

let layerId = reearth.layers.add({
  type: "simple",
  data: {
    type: "3dtiles",
    url: "https://assets.cms.plateau.reearth.io/assets/11/6d05db-ed47-4f88-b565-9eb385b1ebb0/13100_tokyo23-ku_2022_3dtiles%20_1_1_op_bldg_13101_chiyoda-ku_lod1/tileset.json",
  },
  "3dtiles": {
      pbr: false
  }
});

setTimeout(()=>{
    reearth.camera.flyTo(layerId);

    reearth.scene.overrideProperty({
        atmosphere:{
            shadows: true,
            shadowResolution: 4096,
            softShadow: true,
            shadowDarkness: 0.3
        },
        terrain:{
            terrain: true,
        },
        light:{
            lightType: 'directionalLight', // in case you test this at night
        }
    });
},0);

Which point I want you to review particularly

Memo

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[codecov]

Codecov Report

Merging #524 (eb22f86) into main (fa30bc5) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

❗ Current head eb22f86 differs from pull request most recent head 8c4822a. Consider uploading reports for the commit 8c4822a to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #524      +/-   ##
==========================================
- Coverage   26.69%   26.68%   -0.02%     
==========================================
  Files        1337     1337              
  Lines      144435   144501      +66     
  Branches     3481     3481              
==========================================
+ Hits        38559    38560       +1     
- Misses     104754   104819      +65     
  Partials     1122     1122              

Flag	Coverage Δ
web	24.02% <0.00%> (-0.02%)	⬇️
web-beta	24.02% <0.00%> (-0.02%)	⬇️
web-classic	24.02% <0.00%> (-0.02%)	⬇️
web-utils	24.02% <0.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
web/src/beta/lib/core/Map/types/index.ts	0.00% <0.00%> (ø)
web/src/beta/lib/core/engines/Cesium/hooks.ts	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes