Design principles of hardware-based phong shading and bump-mapping

Bennebroek, K.; Ernst, Ines; Rüsseler, H.; Wittig, O.

doi:10.1016/s0097-8493(96)00077-5

Cited by 8 publications

(6 citation statements)

References 3 publications

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“…A possible solution that avoids the calculation of the derivatives of the bump function is to store precalculated derivatives [5,2]. Besides saving the calculation, this has the advantage, that the scaling of bump maps is as simple as the scaling of rgb-textures.…”

Section: Bump Mapping With Precalculated Derivativesmentioning

confidence: 99%

Antialiasing of Environment Maps

Schilling¹

2001

Computer Graphics Forum

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Environment maps, like texture maps or any other maps consisting of discretely stored data have to be properly filtered, if they are being resampled in the process of rendering an image. For environment maps, this is especially important, as the sampling rate is subject to extreme changes due to the curvature of the reflecting surfaces. However, for the same reason, the antialiasing is especially difficult to perform, as the sampling rate has to be determined for each pixel. We introduce a method to perform this calculation and determine the parameters for anisotropic filtering of the environment map. Instead of the BRDF, we employ roughness pyramids to account for the properties of the reflecting surface. The principles that are used to perform this antialiasing can be applied for antialiasing reflected textures in general e.g. in ray tracing.

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Section: Bump Mapping With Precalculated Derivativesmentioning

confidence: 99%

Antialiasing of Environment Maps

Schilling¹

2001

Computer Graphics Forum

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“…A possible solution that avoids the calculation of the derivatives of the bump function is to store precalculated derivatives [ 11] [2]. Besides saving the calculation, this has the advantage, that the scaling of bump maps is as simple as the scaling of rgb-textures.…”

Section: Bump Mapping With Precalculated Derivativesmentioning

confidence: 99%

Towards real-time photorealistic rendering

Schilling

1997

Proceedings of the ACM SIGGRAPH/EUROGRAPHICS Workshop on Graphics Hardware - HWWS '97

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A growing number of real-time applications need graphics with photorealistic quality, especially in the field of training (virtual operation, driving and flightsimulation), but also in the areas of design or ergonomic research. We take a closer look at main deficiencies of today's real time graphics hardware and present solutions for several of the identified problems in the areas of antialiasing and texture-. bump-and reflection mapping. In the second part of the paper, a new method for antialiasing bump maps is explained in more detail.

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“…And these computations are considerably more expensive than those for conventional hardware texture mapping --------------------------------------------* e-mail: jnwang@cauc.edu.cn † e-mail: jzsun@tju.edu.cn operations. In order to acquire more efficient ways to simulate bump mapping visual effects, many attempts to reformulate bump mapping suitable for hardware implementation are suggested 6,7,8 . This paper introduces a new simple and efficient method to render bump maps in real-time by virtue of graphics hardware assistant.…”

Section: Introductionmentioning

confidence: 99%

Real-time bump mapped texture shading based-on hardware acceleration

Wang

Sun

2004

Proceedings of the 2004 ACM SIGGRAPH International Conference on Virtual Reality Continuum and Its Applications in Industry - V

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It would be more convinced if we can provide more realistic visual effects in a VR system. Bump mapping can simulate a surface bumpy appearance without any overload of increasing extra polygons. Techniques of programmable per-vertex shader and per-pixel shader have been introduced in recent years based on newly developed graphics hardware armed with powerful GPU. This makes ease in realizing real-time bump mapping and complex lighting computation. Firstly, the mathematics of bump mapping is discussed. And then real-time bump mapping implementation using per-pixel shading supported by programmable hardware is described. Finally we present our experimental result. It shows our method is desirable.

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Design principles of hardware-based phong shading and bump-mapping

Cited by 8 publications

References 3 publications

Antialiasing of Environment Maps

Antialiasing of Environment Maps

Towards real-time photorealistic rendering

Real-time bump mapped texture shading based-on hardware acceleration

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