Hybrid DoF: Ray-Traced and Post-Processed Hybrid Depth of Field Effect for Real-Time Rendering

TL;DR

This paper introduces a real-time hybrid Depth of Field method combining ray tracing and post-processing to improve edge accuracy and semi-transparency effects in game rendering, leveraging hardware acceleration for interactivity.

Contribution

It presents a novel hybrid DoF technique that integrates ray tracing with image filtering for enhanced visual quality in real-time rendering.

Findings

Achieves more accurate partial occlusion semi-transparencies.

Maintains interactive frame rates using hardware acceleration.

Improves edge quality in Depth of Field effects.

Abstract

Depth of Field (DoF) in games is usually achieved as a post-process effect by blurring pixels in the sharp rasterized image based on the defined focus plane. This paper describes a novel real-time DoF technique that uses ray tracing with image filtering to achieve more accurate partial occlusion semi-transparencies on edges of blurry foreground geometry. This hybrid rendering technique leverages ray tracing hardware acceleration as well as spatio-temporal reconstruction techniques to achieve interactive frame rates.