Hybrid ray tracing method for photorealistic image synthesis in head-up displays

Potemin, Igor S.; Zhdanov, Dmitry; Zhdanov, Andrey; Bogdanov, Nikolay; Voloboy, Alexey

doi:10.1117/12.2312589

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…When designing the real-time realistic rendering-based GPU raytracing it should follow the common raytracing pipeline and use the corresponding API 18 . The most promising CPU rendering method is the progressive backward photon mapping 19 as it uses fewer resources with the same rendering quality, however, due to different computation architecture and resource limits, it is not possible to use the CPU rendering method directly, so new algorithmic approaches should be developed.…”

Section: Rendering Algorithmsmentioning

confidence: 99%

Effective caustics simulation for real-time rendering applications

Zhdanov,

Potemin

2023

Optoelectronic Imaging and Multimedia Technology X

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Section: Rendering Algorithmsmentioning

confidence: 99%

Effective caustics simulation for real-time rendering applications

Zhdanov,

Potemin

2023

Optoelectronic Imaging and Multimedia Technology X

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“…The first scene is a model of the optical system of the head-up display (HUD). 15 The principal scheme of the HUD system is shown in Fig. 13.…”

Section: Test Scenes Setupmentioning

confidence: 99%

Virtual prototyping of complex optical systems on multiprocessor workstations

Zhdanov

Sorokin

et al. 2022

Opt. Eng.

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Nowadays, optical designers often use multiprocessor workstations for the virtual prototyping of complex optical systems. Modern workstations may have several CPUs with up to 128 virtual cores each and a non-uniform access speed to different memory areas. Effective implementation of virtual prototyping methods and algorithms requires the development of special methods for efficient algorithm parallelization and shared memory access. As a basis for the virtual prototyping, we proposed a progressive backward photon mapping method that allows for reducing the amount of data used by photon maps, speeding up the luminance calculation process, and estimating the luminance errors for the resulting image. The main algorithmic complexity of this method is the need to synchronize data when calculating and accumulating the luminance of indirect and caustic illumination. The authors propose the three-level semi-synchronous parallelization method, which consists of fully synchronous, semi-synchronous, and asynchronous levels with illumination processing effectively distributed among the computation threads. The main benefit of the developed method is that it does not require additional synchronization when accumulating luminance, thus increasing the image synthesis speed. The designed three-level method can also be used in distributed systems with good scalability. The results obtained with virtual prototypes of complex optical systems are presented.

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“…When designing the real-time realistic rendering based on the DirectX Raytracing it should follow the DXR raytracing pipeline and use the corresponding API [18]. The most promising CPU rendering method is the progressive backward photon mapping [19] as it uses fewer resources with the same rendering quality, however, due to different computation architecture and resource limits, it is not possible to use the CPU rendering method directly, so new algorithmic approaches should be developed.…”

Section: Related Workmentioning

confidence: 99%

Rendering the Real-Time Caustics with DirectX Raytracing

Komarov

Zhdanov

2021

Proceedings of the 31th International Conference on Computer Graphics and Vision. Volume 2

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Caustic illumination frequently appears in the real life, however, this type of illumination is especially hard to be rendered in real-time. Currently, some solutions allow to render the caustic illumination caused by the water surface, but these methods could not be applied to the arbitrary geometry. In the scope of the current article, we present a method of real-time caustics rendering that uses the DirectX Raytracing API and is integrated into the rendering pipeline. The method is based on using additional forward caustic visibility maps and backward caustics visibility maps that are created for light sources and the virtual camera correspondingly. The article presents the algorithm of the developed real-time caustics rendering method and the results of testing its implementation on test scenes. The analysis of the dependence of the rendering speed on the depth of specular ray tracing, the number of light sources, and the number of rays per pixel is carried out. Testing shows promising results which can be used in the modern game industry to increase the realism of the virtual world visualization.

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Hybrid ray tracing method for photorealistic image synthesis in head-up displays

Cited by 5 publications

References 2 publications

Effective caustics simulation for real-time rendering applications

Effective caustics simulation for real-time rendering applications

Virtual prototyping of complex optical systems on multiprocessor workstations

Rendering the Real-Time Caustics with DirectX Raytracing

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