Real-Time 3D Position-Based Dynamics Simulation for Hydrographic Printing

  • Leonardo Thomas UFBA
  • Karl Agüero UFBA
  • Antônio Apolinário Jr. UFBA


Hydrographic Printing, also called Hydrographics, is a viable method for coloring objects created with 3D printers. However, executing the hydrographic technique leads to a complex interaction between a thin film and a 3D printed object, in which the image in the film must adhere to the object. To handle the difficulty of predicting the final result of hydrographic printing, we propose a 3D computational simulation that uses Position-Based Dynamics, a popular technique for simulating deformable bodies and widely used in physics engines. We take advantage of this technique running in parallel a GPU-based simulation with suitable performance. We simulate the film behavior and its interaction with the printed object, as an interaction between a soft-body colliding with a rigid one. To evaluate the achieved performance consistency, we varied the number of vertices and voxels in the bodies involved and observed that the simulation kept running in real-time. We also execute the hydrographic technique in different printed models and compare these results with the simulated models.
Palavras-chave: 3D Printing, Hydrographic Printing, Physically Based Simulation, Soft Body Simulation, Real Time Rendering, Texture Mapping
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THOMAS, Leonardo; AGÜERO, Karl; APOLINÁRIO JR., Antônio. Real-Time 3D Position-Based Dynamics Simulation for Hydrographic Printing. In: CONFERENCE ON GRAPHICS, PATTERNS AND IMAGES (SIBGRAPI), 33. , 2020, Evento Online. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2020 . p. 102-109.