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

TL;DR

This paper introduces a hybrid motion blur rendering method that combines ray tracing and post-process filtering to accurately depict partial occlusion semi-transparencies in real-time, enhancing visual realism.

Contribution

It presents a novel hybrid technique integrating ray tracing with post-process filtering for improved partial occlusion effects in real-time motion blur.

Findings

More accurate partial occlusion semi-transparencies

Maintains interactive frame rates

Combines ray tracing with filtering for enhanced realism

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 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.