Hybrid MBlur Using Ray Tracing to Solve the Partial Occlusion Artifacts in Real-Time Rendering of Motion Blur Effect_2

2025-04-29 0 0 647.1KB 2 页 10玖币

侵权投诉

Hybrid MBlur: Using Ray Tracing to Solve the Partial Occlusion

Artifacts in Real-Time Rendering of Motion Blur Eect

Tan Yu Wei

National University of Singapore

yuwei@u.nus.edu

Cui Xiaohan

National University of Singapore

cuixiaohan@u.nus.edu

Anand Bhojan

National University of Singapore

banand@comp.nus.edu.sg

Figure 1: From left to right: original scene, adapted post-process [McGuire et al. 2012] (295 fps), UE4 post-process, hybrid (205

fps) and ray-traced MBlur on The Modern Living Room (CC BY) with a GeForce RTX 2080 Ti

ABSTRACT

For a foreground object in motion, details of its background which

would otherwise be hidden are uncovered through its inner blur.

This paper presents a novel hybrid motion blur rendering technique

combining post-process image ltering and hardware-accelerated

ray tracing. In each frame, we advance rays recursively into the

scene to retrieve background information for inner blur regions and

apply a post-process ltering pass on the ray-traced background and

rasterized colour before compositing them together. Our approach

achieves more accurate partial occlusion semi-transparencies for

moving objects while maintaining interactive frame rates.

CCS CONCEPTS

•Computing methodologies →Rendering

;

Ray tracing

;

•Ap-

plied computing →Computer games.

KEYWORDS

real-time, motion blur, ray tracing, post-processing, hybrid render-

ing, games

ACM Reference Format:

Tan Yu Wei, Cui Xiaohan, and Anand Bhojan. 2020. Hybrid MBlur: Using

Ray Tracing to Solve the Partial Occlusion Artifacts in Real-Time Rendering

of Motion Blur Eect. In Special Interest Group on Computer Graphics and

Interactive Techniques Conference Posters (SIGGRAPH ’20 Posters), August 17,

2020. ACM, New York, NY, USA, 2 pages. https://doi.org/10.1145/3388770.

3407436

Permission to make digital or hard copies of part or all of this work for personal or

classroom use is granted without fee provided that copies are not made or distributed

for prot or commercial advantage and that copies bear this notice and the full citation

on the rst page. Copyrights for third-party components of this work must be honored.

For all other uses, contact the owner/author(s).

SIGGRAPH ’20 Posters, August 17, 2020, Virtual Event, USA

ACM ISBN 978-1-4503-7973-1/20/08.

https://doi.org/10.1145/3388770.3407436

1 INTRODUCTION

Blurred regions by nature uncover information of hidden back-

ground areas which are otherwise excluded from the render, as

an eect of partial occlusion. Moving objects blur outwards and

inwards at their silhouette, causing the region surrounding their

silhouette to appear semi-transparent [Jimenez 2014]. Outer blur

represents an object’s blur into its background, while inner blur

refers to the blur produced within the silhouette of the object itself.

One key to Motion Blur (MBlur) rendering is hence the recovery

of background colour in inner blur regions which is inaccurate with

screen space approaches. Post-process techniques like McGuire et al

[2012] approximate the background of the inner blur with neigh-

bouring pixels when the background colour of the target pixel

cannot be retrieved from raster information. This approach not

only produces a mere approximation of the true background geom-

etry of inner blur regions, but also leads to inaccuracies between

real and approximated backgrounds for sharp and blurred regions

respectively. Our technique addresses these issues by obtaining the

exact colour of occluded background with ray tracing for a more

accurate MBlur.

2 DESIGN

We rst obtain per-pixel information such as camera space depth,

world space surface normal vector, screen space mesh ID and ve-

locity as well as rasterized colour under deferred shading. The

same depth and colour information for background geometry are

retrieved by our novel ray reveal pass within a ray mask for pixels

in the inner blur of moving foreground objects. A tile-dilate pass is

then applied to these 2 sets of buers to determine the sampling

range of our gathering lter in the subsequent post-process pass

which is adapted from McGuire et al

[2012]. Both the ray-revealed

result and rasterized output are then blurred by the post-process

pass, and lastly composited together to produce our nal image.

arXiv:2210.05364v1 [cs.GR] 11 Oct 2022

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

10 玖币 0人已下载

立即下载

摘要：

HybridMBlur:UsingRayTracingtoSolvethePartialOcclusionArtifactsinReal-TimeRenderingofMotionBlurEffectTanYuWeiNationalUniversityofSingaporeyuwei@u.nus.eduCuiXiaohanNationalUniversityofSingaporecuixiaohan@u.nus.eduAnandBhojanNationalUniversityofSingaporebanand@comp.nus.edu.sgFigure1:Fromlefttoright:ori...

展开>> 收起<<

Hybrid MBlur Using Ray Tracing to Solve the Partial Occlusion Artifacts in Real-Time Rendering of Motion Blur Effect_2.pdf

共2页,预览1页

还剩页未读，继续阅读

声明：本站为文档C2C交易模式，即用户上传的文档直接被用户下载，本站只是中间服务平台，本站所有文档下载所得的收益归上传人(含作者)所有。玖贝云文库仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对上载内容本身不做任何修改或编辑。若文档所含内容侵犯了您的版权或隐私，请立即通知玖贝云文库，我们立即给予删除！

Hybrid MBlur Using Ray Tracing to Solve the Partial Occlusion Artifacts in Real-Time Rendering of Motion Blur Effect_2

相关推荐

开通VIP享超值会员特权

作者详情

相关内容

热门标签

举报选择: