This is an app and 3D platform for online stores, user will be able to create their own online store by just uploading their 3D clothing models. - Rendering Optimization: Project needs be running realtime with pixelstreaming, so there are some optimization based on different could provider. - Shaders: Creating shaders/master materials for all the 3D objects in the scenes. Also one big part is we need import 3D model on runtime, so I created shader conversion for different formats, such as fbx, obj and gltf.