| What's new |
| Contact information |
E-mail:
A.Goinski
AT wp.pl (in anti-spam format)
Web page: fractals.republika.pl
| Description |
| Research interests |
| Projects |
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3dShow! A slideshow in 3D. My very first work for MS Win32 API and DirectX - released in the year 2000. I implemented some nice effects there (including real-time shadows). Download it here. May still work :) |
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Magic table A sample of springs system in action. The application gives an opportuninty to see the wireframe mode and to change the wind condition You may download it here (DX is a req.) |
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2D
Escape Time Fractals
Self-written generator based on the idea of Pickover and Sprott The generator for Win platform available here (DX req.) |
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IFS A classic IFS interpolation in action with a few rendering algorithms (methods: classic, recurrent and multi-recurrent). Some interesting cases are depicted on the screenshots! The IFS interpolation seems to be very interesting in these special cases. You may obtain them by changing an order of control points and modifying some of the parameters. Take a deeper look at the screenshots where coefficients are given for some exceptions. You may download the application for Win32 platform here (DX is a req.). It works in full-screen mode. |
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Generation of Volumetric
Escape Time Fractals Computers&Graphics Vol. 27, No. 6 (2003), pp. 977-982 Abstract Aesthetically appealing two-dimensional escape time fractals are often based on complex-function transformations. The same methods of analysis and rendering can be extended to create fractal solids. Methods for generation of these objects very often use quaternion representations for transforming points in three or four dimensions. In this tutorial and artistic statement, we describe a simple yet effective approach for visualizing escape times of general quadratic fractal maps in the third dimension. The approach allows us to automatically generate diverse and beautiful volumetric shapes in real time on currently available personal computers. Keywords Iteration, Computer Art, Shape Geometry, Volume Rendering, Multidimensional Fractals Download the pseudocode for generation such fractals Or visit the image of a day on gamedav Or download the app here Remarks Reprints available on request. |
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4D Fractals 4D fractals - sample images (9 to 10 frames over the fractal lifecycle). These fractals are an extension of my previous work on 3D Escape-Time Fractals. The main points are: no quaternions numbers, just real numebers with a combination of linear and quadratic functions. The most interesting of such four-dimensional fractals is that they have well-organized and balanced shapes in all dimensions. Download the generator here Keywords Volume Rendering, Multidimensional Fractals |
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Sample renders Sample renders using Cinema4D. Slawek Nikiel is the author of these images. The surfaces on these objects were obtained by the new reconstruction method presented in the projects section. |
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A recursive subdivision
scheme for isosurface construction Abstract Remarks |
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Sunflowers Sunflowers plugin in action (from the classic to the heavy rock sounds ;)) (releated to billboards techniques) Download it here Or visit the image of a day on gamedav Abstract The paper presents a new method for the realistic animation of plants and tree foliage. Some approaches to this problem have been addressed before but their results have not met real time constraints. Our method is based on warping and morphing of billboard images obtained from preprocessed images of botanical structures. This technique may not stand up to extreme close-ups, however it works well with medium and distant views in virtual scenes. Our method can easily be applied to virtual environments and computer games containing animated vegetation. Keywords vegetation modeling, complex animation, morphing, image-based rendering |
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The motion of impostors Abstract
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Data Visualization and User Interface in Embedded Measuring Devices Proc. of MKM 2005, pp. 288-296 – a conference dedicated to electrical measuring, Polish language (only abstract and summary are available in English) Abstract A process of developing intuitive user interface and data visualization for embedded devices is a challenging task. There are many limits that an engineer must overcome. Therefore, the paper indicates some key points that must be considered in designing process. In the user interface section, the author discusses physical limitation of the embedded devices, users’ interaction, human perception, and general design. These things are extended in data visualization section. There are presented the pros and cons for different shapes of data representations. Especially, a linear trend view is widely discussed with respect to speed optimization techniques. Keywords Embedded devices, GUI developing, data visualization |
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3-D Surface Reconstruction by Means of Evolutionary Algorithms Proc. of KAEiOG 2007 (Evolutionary Computation and Global Optimization), pp. 107-114 Abstract In the paper we propose a new method for an isosurface construction from unorganized points in 3-D. The aim is to combine evolutionary algorithms with a recursive subdivision scheme. The algorithm starts from a base population where each individual represents an N-level surface approximation of an input object. Next, the population is evaluated and an offspring generation is created with a denser subdivision of a surface. The method is illustrated by a set of samples. Keywords Evolutionary computation, 3D graphics, Isosurface construction |
| Gallery to appear | Evolutionary Surface Reconstruction To appear: Proc. of HSI'08 in Advance Computer Graphics section New methods, new results - soon available. |
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