Abstract
Generating natural textures is a challenging task in graphics and virtual reality. Leaf texture is an important part of natural textures. Different from many other textures with repetitive and random patterns, leaves are closely related to its botanic structures, especially veins. Appearing in forms of foliages in the wild, the variety of leaf textures produces the realism of virtual scenes. In this paper, we propose a novel leaf-texturing method that models the inherent relevance between structural features and pattern distributions. Based on the structure-guided model, we design an example-based algorithm to extract and generate leaf textures depending on venation structures. Global variations and local details are processed separately for multi-scale texture features. Experiments show that our model produces visually plausible leaf textures with variations, which can be easily applied to many other applications, including texture transfer between different leaf structures, aging effect and texture editing.
