A Fast and Stable Feature-Aware Motion Blur Filter

Abstract

High-quality motion blur is an increasingly important effect in interactive graphics however, even in the context of offline rendering, it is often approximated as a post process. Recent motion blur post-processes (e.g., [MHBO12, Sou13]) generate plausible results with interactive performance, however distracting artifacts still remain in the presence of e.g. overlapping motion or large- and fine-scale motion features.We address these artifacts with a more robust sampling and filtering scheme with only a small additional runtime cost. We render plausible, temporallycoherent motion blur on several complex animation sequences, all in under 2ms at a resolution 1280 x 720. Moreover, our filter is designed to integrate seamlessly with post-process anti-aliasing and depth of field.