Generalized resampled importance sampling: Foundations of restir

D Lin, M Kettunen, B Bitterli, J Pantaleoni… - ACM Transactions on …, 2022 - dl.acm.org
As scenes become ever more complex and real-time applications embrace ray tracing, path
sampling algorithms that maximize quality at low sample counts become vital. Recent …

Amortizing samples in physics-based inverse rendering using ReSTIR

YC Wang, C Wyman, L Wu, S Zhao - ACM Transactions on Graphics …, 2023 - dl.acm.org
Recently, great progress has been made in physics-based differentiable rendering. Existing
differentiable rendering techniques typically focus on static scenes, but during inverse …

Decorrelating restir samplers via mcmc mutations

R Sawhney, D Lin, M Kettunen, B Bitterli… - ACM Transactions on …, 2024 - dl.acm.org
Monte Carlo rendering algorithms often utilize correlations between pixels to improve
efficiency and enhance image quality. For real-time applications in particular, repeated …

Area ReSTIR: Resampling for Real-Time Defocus and Antialiasing

S Zhang, D Lin, M Kettunen, C Yuksel… - ACM Transactions on …, 2024 - dl.acm.org
Recent advancements in spatiotemporal reservoir resampling (ReSTIR) leverage sample
reuse from neighbors to efficiently evaluate the path integral. Like rasterization, ReSTIR …

A gentle introduction to restir path reuse in real-time

C Wyman, M Kettunen, D Lin, B Bitterli… - ACM SIGGRAPH 2023 …, 2023 - dl.acm.org
In recent years, reservoir-based spatiotemporal importance resampling (ReSTIR) algorithms
appeared out of nowhere to take parts of the realtime rendering community by storm, with …

Efficient spatial resampling using the pdf similarity

Y Tokuyoshi - Proceedings of the ACM on Computer Graphics and …, 2023 - dl.acm.org
In real-time rendering, spatiotemporal reservoir resampling (ReSTIR) is a powerful
technique to increase the number of candidate samples for resampled importance sampling …

ImmersiveNeRF: Hybrid Radiance Fields for Unbounded Immersive Light Field Reconstruction

X Yu, H Wang, Y Han, L Yang, T Yu, Q Dai - arXiv preprint arXiv …, 2023 - arxiv.org
This paper proposes a hybrid radiance field representation for unbounded immersive light
field reconstruction which supports high-quality rendering and aggressive view …

Single‐pass stratified importance resampling

E Ciklabakkal, A Gruson, I Georgiev… - Computer Graphics …, 2022 - Wiley Online Library
Resampling is the process of selecting from a set of candidate samples to achieve a
distribution (approximately) proportional to a desired target. Recent work has revisited its …

ReSTIR Subsurface Scattering for Real-Time Path Tracing

M Werner, V Schüßler, C Dachsbacher - Proceedings of the ACM on …, 2024 - dl.acm.org
Subsurface scattering is an important visual cue and in real-time rendering it is often
approximated using screen-space algorithms. Path tracing with the diffusion approximation …

Vectorized reservoir sampling

S Ogaki - SIGGRAPH Asia 2021 Technical Communications, 2021 - dl.acm.org
Reservoir sampling is becoming an essential component of realtime rendering as it enables
importance resampling with limited storage. Chao's weighted random sampling algorithm is …