Publication

Overprinting with tomographic volumetric additive manufacturing using Dr. TVAM

2026

Abstract

Tomographic volumetric additive manufacturing (TVAM) enables optical 3D polymerization by projecting computed 2D patterns into a rotating, single-photon-absorbing medium. We present Dr. TVAM, an open-source, ray-tracing, auto-differentiable simulation framework that for examples allows modeling refraction in square vials or scattering in biomaterials, and performs gradient-based pattern optimization. We further demonstrate printing over pre-existing, light-modulating components: fabricating complex, perfusable hydrogel microfluidic channels that connect light-occluding inlets in square vials, printing optical elements directly onto LEDs. These results showcase robust pattern design under realistic optical scenarios with existing structures and enable rapid, material-agnostic TVAM printing of functional structures.

Official source

https://infoscience.epfl.ch/entities/publication/559b770b-80d8-4a1e-beed-d5ce09cc50b3

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/559b770b-80d8-4a1e-beed-d5ce09cc50b3

About this result

Related concepts (32)

Ray tracing (graphics)

In 3D computer graphics, ray tracing is a technique for modeling light transport for use in a wide variety of rendering algorithms for generating . On a spectrum of computational cost and visual fidelity, ray tracing-based rendering techniques, such as ray casting, recursive ray tracing, distribution ray tracing, photon mapping and path tracing, are generally slower and higher fidelity than scanline rendering methods.

Distributed ray tracing

Distributed ray tracing, also called distribution ray tracing and stochastic ray tracing, is a refinement of ray tracing that allows for the rendering of "soft" phenomena. Conventional ray tracing uses single rays to sample many different domains. For example, when the color of an object is calculated, ray tracing might send a single ray to each light source in the scene. This leads to sharp shadows, since there is no way for a light source to be partially occluded (another way of saying this is that all lights are point sources and have zero area).

Purely functional data structure

In computer science, a purely functional data structure is a data structure that can be directly implemented in a purely functional language. The main difference between an arbitrary data structure and a purely functional one is that the latter is (strongly) immutable. This restriction ensures the data structure possesses the advantages of immutable objects: (full) persistency, quick copy of objects, and thread safety. Efficient purely functional data structures may require the use of lazy evaluation and memoization.

Related publications (9)

Overprinting with tomographic volumetric additive manufacturing using Dr. TVAM

Chat with Graph Search

Practical Tools for Personal and Sensitive Research Data - Curated Table

Development of an Event Tracking Feature in OpenMC for Neutron Noise Analysis

Robustness in Both Domains: CLIP Needs a Robust Text Encoder