We’ve built a site with Three.js and React. Most of the content that we want search engines to crawl is displayed via a CSS3Renderer on a plane inside our WebGL scene. We’re using raycasting to navigate through the the site. Our nav buttons are gltf models. When a button is clicked a React component is displayed on the plane via CSS3DRenderer. So we do not have page links. So far, it appears that search engines do not see any of the CSS3Rendered content, or any content beyond our WebGlRendered landing page. Any advice on how to make Three.js sites SEO friendly?