Real-Time Generation of Reflections in the Optimized Image Space

ZHANG Yanci; YU Hanyou; XIE Ruilin; MENG Xiaoyou; REN Wenjie; XIE Kaili; LIU Yanli

doi:10.1049/cje.2020.07.002

Volume 29 Issue 5

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ZHANG Yanci, YU Hanyou, XIE Ruilin, et al., “Real-Time Generation of Reflections in the Optimized Image Space,” Chinese Journal of Electronics, vol. 29, no. 5, pp. 812-818, 2020, doi: 10.1049/cje.2020.07.002

Citation:

ZHANG Yanci, YU Hanyou, XIE Ruilin, et al., “Real-Time Generation of Reflections in the Optimized Image Space,” Chinese Journal of Electronics, vol. 29, no. 5, pp. 812-818, 2020, doi: 10.1049/cje.2020.07.002

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Real-Time Generation of Reflections in the Optimized Image Space

doi: 10.1049/cje.2020.07.002

College of Computer Science, Sichuan University, Chengdu 610065, China

Funds: This work is supported by the National Natural Science Foundation of China (No.61472261).

Received Date: 2017-06-21
Rev Recd Date: 2017-12-02
Publish Date: 2020-09-10

Abstract

Abstract

This paper proposes a novel image-based method to generate real-time reflections. Our algorithm aims to solve the problem of missing reflections in previous screen space based methods efficiently. Instead of computing reflections in the image space decided by the current eye position, our method conducts most of the reflection calculations in a new image space, which is determined by a carefully chosen camera position at runtime. The major criteria used to choose this optimized camera position is to make its corresponding image space contain as much as possible scene information to generate reflections. Our experimental results indicate that most of the missing reflections problems can be fixed by moving the reflection computations to this new image space. We also prove that the performance gains achieved by executing computations in the new image space can cancel out most of the overhead to generate it.
- Reflections,
- Ray marching,
- Image space,
- G-buffer

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References(22)

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