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Adaptive Sampling of Area Light Sources in Ray Tracing Including Diffuse Interreflection
(Blackwell Science Ltd and the Eurographics Association, 1992)
Ray tracing algorithms that sample both the light received directly from light sources and the light received indirectly by diffuse reflection from other patches, can accurately render the global illumination in a scene ...
Stochastic Motion-Motion Under the Influence of Wind
(Blackwell Science Ltd and the Eurographics Association, 1992)
Stochastic approaches are very effective for modelling natural phenomena. This paper presents a motion model based on a stochastic process as well as physics, and proposes motion synthesis techniques for stochastic ...
The Parametric Differential Method: An Alternative to the Calculation of Form Factors
(Blackwell Science Ltd and the Eurographics Association, 1992)
The parametric differential method calculates the form factors without using approximations by polygons. Because of this it contributes to the improvement of the realism of the images synthesised through the radiosity ...
The Visualization Input Pipeline - Enabling Semantic Interaction in Scientific Visualization
(Blackwell Science Ltd and the Eurographics Association, 1992)
Scientific Visualization systems are primarily output-oriented, Users can specify and change parameters that are controlling the visualization process, which will result in different data representations or images respectively. ...
The Input Model of Standard Graphics Systems Revisited by Formal Specification
(Blackwell Science Ltd and the Eurographics Association, 1992)
This paper describes the specification of an input model for graphics systems. The initial aim of the work reported in this paper was to revise the input model adopted by graphics standards by means of formal specification ...
Radiosity in Flatland
(Blackwell Science Ltd and the Eurographics Association, 1992)
The radiosity method for the simulation of interreflection of light between diffuse surfaces is such a common image synthesis technique that its derivation is worthy of study. We here examine the radiosity method in a two ...
An adaptive Discretization Method For Radiosity
(Blackwell Science Ltd and the Eurographics Association, 1992)
When using radiosiiy, the visual quality of the rendered images strongly depends on the method employed for discretizing the scene into patches. A too fine discretization may give rise to artifacts, while with a coarse ...
Area Sampling Buffer: Tracing Rays with Z-Buffer Hardware
(Blackwell Science Ltd and the Eurographics Association, 1992)
An algorithm that allows the use of z-buffer hardware in assisting area sampling for a ray tracing style renderer is described. The implementation issues involved in discretizing the sampling area and light source area are ...
Affine Texture Mapping and Antialiasing Using Integer Arithmetic
(Blackwell Science Ltd and the Eurographics Association, 1992)
Texture mapping techniques are very useful for generating more realistic images. However, texture compression, generally induced by geometric transformations, is at the origin of aliasing artifacts especially the ...
Simulation of Facial Muscle Actions Based on Rational Free Form Deformations
(Blackwell Science Ltd and the Eurographics Association, 1992)
This paper describes interactive facilities for simulating abstract muscle actions using Rational Free Form Deformations (RFFD). The particular muscle action is simulated as the displacement of the control points of the ...