Category: Digital Design of Nature

Tropisms

The appearance of a plant is, except for the branch formation, substantially de­termined by the formation of the shoot axes according to growth preferences, so-called tropism. The direction of the shoots is controlled by gravity and the incidence of light. These growth mechanisms are decisive factors for the opti­mization of the living space of a […]

Spatial Division

According to its genetic options and the available space, a plant tries to opti­mize growth. Independent of the branching form, the primary axes grow verti­cally, the secondary axes rather horizontally. Thereby, the genetically specified differences in the growth form result from the different growth conditions in the lower and upper parts of the plant. We […]

Branching Types

The geometry of a branching structure is determined either by the dominant main axis or the side branches. In the first case, we speak of a monopodial form, in the second case we call it a sympodial form. Monopodial branching exists if a continuous main shoot has feeble apical shoots, meaning that the main axis […]

Budding

The bud is a propagation system, since each new branch begins in a bud. We differentiate between terminal main buds and side buds in the axis of carrying leaves (bud axis). The inside of the bud is here protected by fast initial growth of the leaves. In leaf buds, for example, it develops into a […]

The Shoot Axis

As mentioned earlier, we are mainly concerned with cormophytes, land plants consisting of roots, shoot axes, and foliage. Starting at the shoot, the branch develops through vertical growth. It can bud, branch out, form a bloom or die off. The division of the branch is the fundamental element of each branching structure. The origin of […]

Plants

For an adequate evaluation and the ability to generate plant geometry, a com­paratively small range of botanical methods and descriptive formulas is needed. Computer graphics in most cases works with relatively rough visual abstrac­tions of a plant, and therefore it is necessary to identify the shape and the funda­mental geometrical relations in the structure of […]

Applications

Some areas of applications for synthetic landscaping have already been men­tioned. Particularly in ecology, plant models can also serve as a medium: they transport information about more deeper-lying processes, enabling the viewer to see even invisible things. This way, even the non-expert observer is able to easily gain insight into the underlying mechanisms of the […]

Rendering Issues

Depending upon the area of application, different goals are pursued in land­scape visualizations. In botany often only an approximate representation of the model is required. In architecture, and in some cases also in landscape planning, in computer games, and in simulation, images are required that, in addition to form, reflect light conditions as well as […]