RaRa Clipper: A Clipper for Gaussian Splatting Based on Ray Tracer and Rasterizer

Fuente: arXiv
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Main Authors: Li, Da, Jia, Donggang, Rajeh, Yousef, Engel, Dominik, Viola, Ivan
Format: Preprint
Published: 2025
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author Li, Da
Jia, Donggang
Rajeh, Yousef
Engel, Dominik
Viola, Ivan
author_facet Li, Da
Jia, Donggang
Rajeh, Yousef
Engel, Dominik
Viola, Ivan
contents With the advancement of Gaussian Splatting techniques, a growing number of datasets based on this representation have been developed. However, performing accurate and efficient clipping for Gaussian Splatting remains a challenging and unresolved problem, primarily due to the volumetric nature of Gaussian primitives, which makes hard clipping incapable of precisely localizing their pixel-level contributions. In this paper, we propose a hybrid rendering framework that combines rasterization and ray tracing to achieve efficient and high-fidelity clipping of Gaussian Splatting data. At the core of our method is the RaRa strategy, which first leverages rasterization to quickly identify Gaussians intersected by the clipping plane, followed by ray tracing to compute attenuation weights based on their partial occlusion. These weights are then used to accurately estimate each Gaussian's contribution to the final image, enabling smooth and continuous clipping effects. We validate our approach on diverse datasets, including general Gaussians, hair strand Gaussians, and multi-layer Gaussians, and conduct user studies to evaluate both perceptual quality and quantitative performance. Experimental results demonstrate that our method delivers visually superior results while maintaining real-time rendering performance and preserving high fidelity in the unclipped regions.
format Preprint
id arxiv_https___arxiv_org_abs_2506_20202
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle RaRa Clipper: A Clipper for Gaussian Splatting Based on Ray Tracer and Rasterizer
Li, Da
Jia, Donggang
Rajeh, Yousef
Engel, Dominik
Viola, Ivan
Graphics
With the advancement of Gaussian Splatting techniques, a growing number of datasets based on this representation have been developed. However, performing accurate and efficient clipping for Gaussian Splatting remains a challenging and unresolved problem, primarily due to the volumetric nature of Gaussian primitives, which makes hard clipping incapable of precisely localizing their pixel-level contributions. In this paper, we propose a hybrid rendering framework that combines rasterization and ray tracing to achieve efficient and high-fidelity clipping of Gaussian Splatting data. At the core of our method is the RaRa strategy, which first leverages rasterization to quickly identify Gaussians intersected by the clipping plane, followed by ray tracing to compute attenuation weights based on their partial occlusion. These weights are then used to accurately estimate each Gaussian's contribution to the final image, enabling smooth and continuous clipping effects. We validate our approach on diverse datasets, including general Gaussians, hair strand Gaussians, and multi-layer Gaussians, and conduct user studies to evaluate both perceptual quality and quantitative performance. Experimental results demonstrate that our method delivers visually superior results while maintaining real-time rendering performance and preserving high fidelity in the unclipped regions.
title RaRa Clipper: A Clipper for Gaussian Splatting Based on Ray Tracer and Rasterizer
topic Graphics
url https://arxiv.org/abs/2506.20202