Realistic real-time rendering of light shafts using blur filter: considering the effect of shadow maps

Ali, Hatam H.; Sunar, Mohd Shahrizal; Kolivand, Hoshang

doi:10.1007/s11042-017-5267-8

Cited by 3 publications

(4 citation statements)

References 21 publications

(24 reference statements)

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“…12, A and B are real pictures at different times of the day with different directions of lighting. C is one of the latest works in light shaft generation for indoor rendering [1]. D is the result of [31], while E is an outdoor light shaft [58].…”

Section: Resultsmentioning

confidence: 99%

“…12 A comparison between realistic light shaft, a and b: real light shaft, c: [1], d [31], e: [58], f: Epipolar sampling with single scattering [15], g: [25], h and i: Our method (ReLiShaft) light shaft generation and ReLiShaft. As can be observed, realTiSoftLS [1], Unified Volumes [31] and Volumetric Shadows [3] have the highest FPS when the number of triangles is not so high. However when the number of triangles increased to 188000, ReLiShaft shows the best results with the lowest level of tolerance compared to the 66000 triangles.…”

Section: Resultsmentioning

confidence: 99%

“…Ali et al [1], presented a real-time light shaft generation technique called realTiSoftLS, using downsampling of ray marching to accelerate number of frames per second. They use bilateral filtering to enhance aliasing that is generated due to using downsampling by preserving the edges of generated shadow maps.…”

Section: Research Backgroundmentioning

confidence: 99%

See 2 more Smart Citations

ReLiShaft: realistic real-time light shaft generation taking sky illumination into account

Kolivand

Sunar

Saba

et al. 2018

Multimed Tools Appl

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Rendering atmospheric phenomena is known to have its basis in the fields of atmospheric optics and meteorology and is increasingly used in games and movies. Although many researchers have focused on generating and enhancing realistic light shafts, there is still room for improvement in terms of both qualification and quantification. In this paper, a new technique, called ReLiShaft, is presented to generate realistic light shafts for outdoor rendering. In the first step, a realistic light shaft with respect to the sun position and sky colour in any specific location, date and time is constructed in real-time. Then, Hemicube visibility-test radiosity is employed to reveal the effect of a generated sky colour on environments. Two different methods are considered for indoor and outdoor rendering, ray marching based on epipolar sampling for indoor environments, and filtering on regular epipolar of z-partitioning for outdoor environments. Shadow maps and shadow volumes are integrated to consider the computational costs. Through this technique, the light shaft colour is adjusted according to the sky colour in any specific location, date and time. The results show different light shaft colours in different times of day in real-time.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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ReLiShaft: realistic real-time light shaft generation taking sky illumination into account

Kolivand

Sunar

Saba

et al. 2018

Multimed Tools Appl

Self Cite

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show abstract

“…The contributions of this paper include (i) introducing the up-to-date taxonomy of the existing cloud representation methods and (ii) anticipating the potential research opportunities in the cloud visualization system considering the atmospheric cloud representation as a foundation for future research, development, and innovation. This paper will be an extension of the previous survey papers [8]- [16], a book [17], and theses [3], [18]- [26] in terms of the methods used for representing clouds in computer graphics as well as a complement of our previous works [134], [135].…”

Section: Introductionmentioning

confidence: 97%

Atmospheric Cloud Representation Methods in Computer Graphics: A Review

Zamr¹

2020

IJATCSE

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Cloud representation is one of the important components in the atmospheric cloud visualization system. Lack of review papers on the cloud representation methods available in the area of computer graphics has directed towards the difficulty for researchers to understand the appropriate solutions. Therefore, this paper aims to provide a comprehensive review of the atmospheric cloud representation methods that have been proposed in the computer graphics domain, involving the classical and the current state-of-the-art approaches. The reviewing process was conducted by searching, selecting, and analyzing the prominent articles collected from online digital libraries and search engines. We highlighted the taxonomic classification of the existing cloud representation methods in solving the atmospheric cloud-related problems. Finally, research issues and directions in the area of cloud representations and visualization have been discussed. This review would be significantly beneficial for researchers to clearly understand the general picture of the existing methods and thus helping them in choosing the best-suited approach for their future research and development.

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Perceptual Model based Surface Tessellation for VR Foveated Rendering

Zheng

Cao

Zhou

et al. 2020

2020 6th International Conference on Robotics and Artificial Intelligence

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Realistic real-time rendering of light shafts using blur filter: considering the effect of shadow maps

Abstract: The version presented here may differ from the published version or from the version of the record. Please see the repository URL above for details on accessing the published version and note that access may require a subscription.

Cited by 3 publications

References 21 publications

ReLiShaft: realistic real-time light shaft generation taking sky illumination into account

ReLiShaft: realistic real-time light shaft generation taking sky illumination into account

Atmospheric Cloud Representation Methods in Computer Graphics: A Review

Perceptual Model based Surface Tessellation for VR Foveated Rendering

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