Shading in valve's source engine

Mitchell, Jason L.; McTaggart, Gary; Green, Christopher

doi:10.1145/1185657.1185832

Cited by 24 publications

(11 citation statements)

References 3 publications

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“…The image may be captured from a real-world location, drawn by an artist as an art asset or generated in a pre-processing stage by sampling the virtual environment. Multiple samples can then be used to light a dynamic character as it moves through the (static) environment [127]. Although the results can be very effective, image-based lighting cannot deal with fully dynamic scenes without having to recompute the environment maps, which may be costly.…”

Section: Shadowsmentioning

confidence: 99%

Developing serious games for cultural heritage: a state-of-the-art review

et al. 2010

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Although the widespread use of gaming for leisure purposes has been well documented, the use of games to support cultural heritage purposes, such as historical teaching and learning, or for enhancing museum visits, has been less well considered. The state-of-the-art in serious game technology is identical to that of the state-ofthe-art in entertainment games technology. As a result the field of serious heritage games concerns itself with recent advances in computer games, real-time computer graphics, virtual and augmented reality and artificial intelligence. On the other hand, the main strengths of serious gaming applications may be generalised as being in the areas of communication, visual expression of information, collaboration mechanisms, interactivity and entertainment. In this report, we will focus on the state-of-the-art with respect to the theories, methods and technologies used in serious heritage games. We provide an overview of existing literature of relevance to the domain, discuss the strengths and weaknesses of the described methods and point out unsolved problems and challenges. In addition, several case studies illustrating the application of methods and technologies used in cultural heritage are presented.

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Section: Shadowsmentioning

confidence: 99%

Developing serious games for cultural heritage: a state-of-the-art review

et al. 2010

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“…[Mitchell et al 2006;Mitchell et al 2007b]). The original Irradiance Volume is a bilevel grid that stores irradiance values at each vertex position.…”

Section: Previous Workmentioning

confidence: 99%

Efficient streaming of 3D scenes with complex geometry and complex lighting

Pacanowski

Raynaud

Granier

et al. 2008

Proceedings of the 13th International Symposium on 3D Web Technology

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Streaming data to efficiently render complex 3D scenes in presence of global illumination is still a challenging task. In this paper, we introduce a new data structure based on a 3D grid of irradiance vectors to store the indirect illumination appearing on complex and detailed objects: the Irradiance Vector Grid (IVG). This representation is independent of the geometric complexity and is suitable for quantization to different quantization schemes. Moreover, its streaming over network involves only a small overhead compared to detailed geometry, and can be achieved independently of the geometry. Furthermore, it can be efficiently rendered using modern graphics hardware. We demonstrate our new data structure in a new remote 3D visualization system, that integrates indirect lighting streaming and progressive transmission of the geometry, and * {pacanows | raynaud | granier| reuter | schlick}@labri.fr † poulin@iro.umontreal.ca study the impact of different strategies on data transfer.

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“…The automatic system is based on that used in the game Half Life 2 [Mitchell et al 2006], and involves building up a basic histogram of the scene luminance, by each frame drawing pixels within a different luminance range to an off-screen buffer, and asynchronously querying the results.…”

Section: High Dynamic Range (Hdr) Lightingmentioning

confidence: 99%