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 filtering 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 filtering 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.
@article{arxiv.2210.05364,
title = {Hybrid MBlur: Using Ray Tracing to Solve the Partial Occlusion Artifacts in Real-Time Rendering of Motion Blur Effect},
author = {Yu Wei Tan and Xiaohan Cui and Anand Bhojan},
journal= {arXiv preprint arXiv:2210.05364},
year = {2022}
}