This paper describes a framework for building virtual collections of several digital objects and presenting them in an interactive 3D environment, rendered in a web browser. Using that environment, the website visitor can examine a given collection from a first-person perspective by walking around and inspecting each object in detail by viewing it from any angle. The rendering and visualization of the models is done solely by the web browser with the use of HTML5 and the Three.js JavaScript library, without any additional requirements.

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This paper describes the latest improvements to a recently developed online environment for managing virtual collections of 3D objects. As part of that effort we introduced a document-oriented NoSQL layer for storing the data describing the 3D objects and collections, provided by the MongoDB engine. This technology has many advantages for describing the type of data and metadata used in our application, which are also valid for and can be applied to the field of digital libraries in general.

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