Controlled Spectral Uplifting for Indirect-Light-Metamerism
SessionEnhancing, Saliency
DescriptionSpectral rendering has received increasing attention in recent years. Yet, solutions to define spectral reflectances are mostly limited to techniques which deterministically uplift existing RGB inputs. Only recently has uplifting enabled constraining a surface appearance under direct illuminants. Yet, prior work in this area limits artist expressiveness and is poorly suited for designing a scene's appearance, as indirect illumination is ignored entirely.
We present an uplifting technique with fine-grained spectral appearance control under direct and indirect illumination, even enabling the placement of spectral constraints in a specific scene. Our approach allows for a flexible authoring process, and solves for the resulting spectra efficiently. Additionally, we show that our method's memory overhead during rendering is kept small, by introducing a compact spectral texture format.
We present an uplifting technique with fine-grained spectral appearance control under direct and indirect illumination, even enabling the placement of spectral constraints in a specific scene. Our approach allows for a flexible authoring process, and solves for the resulting spectra efficiently. Additionally, we show that our method's memory overhead during rendering is kept small, by introducing a compact spectral texture format.
Event Type
Technical Papers
TimeFriday, 6 December 20243:19pm - 3:31pm JST
LocationHall B5 (2), B Block, Level 5
