Non-photorealistic rendering has become an important research topics in computer graphics in recent years. We have previously proposed a non-photorealistic rendering method to generate Suibokuga-like images of trees. This method was suitable only for representing trees in Mokkotsuho paintings because the images were generated from three-dimensional skeleton data. In this paper, we propose a met...

The rendering technique described in this work allows non-photorealistic rendering of plants and trees. Our method is based on the general method proposed by Barbara Meier in 1996. RL-Systems are used to model a tree, allowing the generation in a single step of both the tree geometry and the set of brush strokes needed for later rendering. It can be applied to traditional animation, and to proj...

This paper presents a new shading model for real-time rendering of plant leaves that reproduces all important attributes of a leaf and allows for a large number of leaves to be shaded. In particular, we use a physically based model for accurate subsurface scattering on the translucent side of directly lit leaves. For real-time rendering of this model, we formulate it as an image convolution pro...

We present techniques for realistic real-time rendering of complex landscapes that consist of many highly detailed plant models. The plants are approximated by dynamically changing sets of billboards. Realistic illumination is approximated using spherical harmonics. Since even the rendering of simple billboard cloud plants is too time consuming, the landscape in the background is approximated w...

Computer Aided Design (CAD) and architectural models typically contain hundreds of thousands to millions of 3D primitives. In order to display these models at interactive rates, the number of primitives to be rendered must be reduced. This paper presents an experimental system which combines multiple simplification algorithms into a single framework for the rapid display of massive geometric mo...

Generating and visualizing large areas of vegetation that look natural makes terrain surfaces much more realistic. However, this is a challenging field in computer graphics, because ecological systems are complex and visually appealing plant models are geometrically detailed. This work presents Silva (System for the Instantiation of Large Vegetated Areas), a system to generate and visualize lar...

Rendering techniques currently used in computer graphics enable the generation of very realistic images of a wide range of materials. Despite of the latest achievements in this field, there are still areas, such as biological imaging, open for further investigation. In this paper a simplified model for light interaction with plant tissues is presented. It accounts for the main biological charac...