To implement real-time reflections and refractions in a Babylon.js application, follow these steps :
1. Create a scene with necessary objects (meshes, materials, lights).
2. Add an environment texture for accurate reflections and refractions.
3. Use the PBRMaterial class to create physically-based materials for meshes that require reflections or refractions.
4. Set the ‘reflectionTexture’ and/or ‘refractionTexture’ properties of the PBRMaterial instance using a RenderTargetTexture or CubeTexture.
5. Configure the material’s reflection/refraction properties like indexOfRefraction, linkRefractionWithTransparency, etc., as needed.
Example code :
const scene = new BABYLON.Scene(engine);
const camera = new BABYLON.ArcRotateCamera(...);
const light = new BABYLON.HemisphericLight(...);
const envTexture = new BABYLON.CubeTexture.CreateFromPrefilteredData('path/to/envTexture.dds', scene);
const sphere = BABYLON.MeshBuilder.CreateSphere(...);
const pbrMaterial = new BABYLON.PBRMaterial('pbr', scene);
pbrMaterial.environmentTexture = envTexture;
pbrMaterial.reflectionTexture = new BABYLON.RenderTargetTexture(...);
pbrMaterial.indexOfRefraction = 1.33;
pbrMaterial.linkRefractionWithTransparency = true;
sphere.material = pbrMaterial;?
