Use first person controls to move in the scene

100%
index.js 
import { Vector3 } from 'three';

import FirstPersonControls from '@giro3d/giro3d/controls/FirstPersonControls.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import Tiles3D from '@giro3d/giro3d/entities/Tiles3D.js';
import Tiles3DSource from '@giro3d/giro3d/sources/Tiles3DSource.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';

const viewerDiv = document.getElementById('viewerDiv');

Instance.registerCRS(
    'EPSG:2154',
    '+proj=lcc +lat_0=46.5 +lon_0=3 +lat_1=49 +lat_2=44 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs',
);

const instance = new Instance(viewerDiv, {
    crs: 'EPSG:2154',
    renderer: {
        clearColor: 0xcccccc,
    },
});

// Configure and add Point Cloud to the scene
instance.add(
    new Tiles3D(
        'pointcloud',
        new Tiles3DSource('https://3d.oslandia.com/3dtiles/eglise_saint_blaise_arles/tileset.json'),
    ),
);

// Position our camera
instance.camera.camera3D.position.set(831542.2870560559, 6287655.35350404, 31.86644500706522);
instance.camera.camera3D.lookAt(new Vector3(831585.923, 6287652.23, 27.461));
instance.camera.camera3D.updateMatrixWorld();
// And create our controls
const controls = new FirstPersonControls(instance, {
    focusOnMouseOver: true,
});
controls.reset();
instance.domElement.focus();

instance.notifyChange(instance.camera.camera3D);

Inspector.attach(document.getElementById('panelDiv'), instance);
index.html 
<!doctype html>
<html lang="en">
    <head>
        <title>First Person Controls</title>
        <meta charset="UTF-8" />
        <meta name="name" content="first_person_controls" />
        <meta name="description" content="Use first person controls to move in the scene" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />

        <link rel="icon" href="https://giro3d.org/images/favicon.svg" />
        <link href="https://giro3d.org/assets/bootstrap-custom.css" rel="stylesheet" />
        <script src="https://giro3d.org/assets/bootstrap.bundle.min.js"></script>
        <link
            rel="stylesheet"
            type="text/css"
            href="https://giro3d.org/latest/css/example.css"
        />

        
    </head>

    <body>
        <div id="viewerDiv" class="m-0 p-0 w-100 h-100"></div>
        <div id="panelDiv" class="position-absolute top-0 start-0 mh-100 overflow-auto"></div>

        

        <script type="module" src="index.js"></script>
        <script>
            /* activate popovers */
            const popoverTriggerList = [].slice.call(
                document.querySelectorAll('[data-bs-toggle="popover"]'),
            );
            popoverTriggerList.map(
                // bootstrap is used as script in the template, disable warning about undef
                // eslint-disable-next-line no-undef
                popoverTriggerEl =>
                    new bootstrap.Popover(popoverTriggerEl, {
                        trigger: 'hover',
                        placement: 'left',
                        content: document.getElementById(
                            popoverTriggerEl.getAttribute('data-bs-content'),
                        ).innerHTML,
                        html: true,
                    }),
            );
        </script>
    </body>
</html>
package.json 
{
    "name": "first_person_controls",
    "dependencies": {
        "@giro3d/giro3d": "0.37.3"
    },
    "devDependencies": {
        "vite": "^3.2.3"
    },
    "scripts": {
        "start": "vite",
        "build": "vite build"
    }
}