TY - GEN
T1 - Constructing Printable Surfaces with View-Dependent Appearance
AU - Perroni-Scharf, Maxine
AU - Rusinkiewicz, Szymon
N1 - Publisher Copyright:
© 2023 Owner/Author.
PY - 2023/7/23
Y1 - 2023/7/23
N2 - We present a method for the digital fabrication of surfaces whose appearance varies based on viewing direction. The surfaces are constructed from a mesh of bars arranged in a self-occluding colored heightfield that creates the desired view-dependent effects. At the heart of our method is a novel and simple differentiable rendering algorithm specifically designed to render colored 3D heightfields and enable efficient calculation of the gradient of appearance with respect to heights and colors. This algorithm forms the basis of a coarse-to-fine ML-based optimization process that adjusts the heights and colors of the strips to minimize the loss between the desired and real surface appearance from each viewpoint, deriving meshes that can then be fabricated using a 3D printer. Using our method, we demonstrate both synthetic and real-world fabricated results with view-dependent appearance.
AB - We present a method for the digital fabrication of surfaces whose appearance varies based on viewing direction. The surfaces are constructed from a mesh of bars arranged in a self-occluding colored heightfield that creates the desired view-dependent effects. At the heart of our method is a novel and simple differentiable rendering algorithm specifically designed to render colored 3D heightfields and enable efficient calculation of the gradient of appearance with respect to heights and colors. This algorithm forms the basis of a coarse-to-fine ML-based optimization process that adjusts the heights and colors of the strips to minimize the loss between the desired and real surface appearance from each viewpoint, deriving meshes that can then be fabricated using a 3D printer. Using our method, we demonstrate both synthetic and real-world fabricated results with view-dependent appearance.
KW - Digital Fabrication
KW - Ultraviolet Printer
UR - http://www.scopus.com/inward/record.url?scp=85167965459&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85167965459&partnerID=8YFLogxK
U2 - 10.1145/3588432.3591526
DO - 10.1145/3588432.3591526
M3 - Conference contribution
AN - SCOPUS:85167965459
T3 - Proceedings - SIGGRAPH 2023 Conference Papers
BT - Proceedings - SIGGRAPH 2023 Conference Papers
A2 - Spencer, Stephen N.
PB - Association for Computing Machinery, Inc
T2 - 2023 Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH 2023
Y2 - 6 August 2023 through 10 August 2023
ER -