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DTSTAMP:20260817T171532Z
LOCATION:Hall B5 (1)\, B Block\, Level 5
DTSTART;TZID=Asia/Tokyo:20241205T133400
DTEND;TZID=Asia/Tokyo:20241205T134600
UID:siggraphasia_SIGGRAPH Asia 2024_sess130_papers_540@linklings.com
SUMMARY:Direct Manipulation of Procedural Implicit Surfaces
DESCRIPTION:Marzia Riso (Sapienza University of Rome, Adobe); Élie Michel,
  Axel Paris, Valentin Deschaintre, and Mathieu Gaillard (Adobe); and Fabio
  Pellacini (University of Modena and Reggio Emilia)\n\nProcedural implicit
  surfaces are a popular representation for shape modeling. They provide a 
 simple framework for complex geometric operations such as Booleans, blendi
 ng and deformations. However, their editability remains a challenging task
 : as the definition of the shape is purely implicit, direct manipulation o
 f the shape cannot be performed. Thus, parameters of the model are often e
 xposed through abstract sliders, which have to be non-trivially created by
  the user and understood by others for each individual model to modify. Fu
 rther, each of these sliders needs to be set one by one to achieve the des
 ired appearance. To circumvent this laborious process while preserving edi
 tability, we propose to directly manipulate the implicit surface in the vi
 ewport. We let the user naturally interact with the output shape, leveragi
 ng points on a co-parameterization we design specifically for implicit sur
 faces, to guide the parameter updates and reach the desired appearance fas
 ter. We leverage our automatic differentiation of the procedural implicit 
 surface to propagate interactions made by the user in the viewport to the 
 shape parameters themselves. We further design a solver that uses such inf
 ormation to guide an intuitive and smooth user workflow. We demonstrate di
 fferent editing processes across multiple implicit shapes and parameters t
 hat would be tedious by tuning sliders.\n\nRegistration Category: Full Acc
 ess, Full Access Supporter\n\nLanguage Format: English Language\n\nSession
  Chair: Noam Aigerman (University of Montreal, Mila)\n\n
URL:https://asia.siggraph.org/2024/program/?id=papers_540&sess=sess130
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