For creating grass, there are many methods and techniques. It depends on, what the usage is for. For example, if it is used in an interactive system, it’s better to use a technique that reduces the time for computing. Otherwise, the batch render system should be used. This thesis decided to create a realism of grass. According to the research, types of modeling grass can be categorized by.
2.3.1 Geometry Modeling
This is a traditional and tedious method for modeling because each grass geometry will be modeled by hand [10]. However, this results in a high quality grass. Moreover, time and memory assumption are significant with this method. Figure 2.2 shows a picture using the geometry modeling method.