Abstract: Procedural textures usually require spending time testing parameters to realize the diversity of appearances.This paper introduces the idea of a procedural texture preview: A single static image summarizing in a limited pixel space the appearances produced by a given procedure.Unlike grids of thumbnails our previews present a continuous image of appearances, analog to a map.The main challenge is to ensure that most appearances are visible, are allocated a similar pixel area, and are ordered in a smooth manner throughout the preview.To reach this goal, we introduce a new layout algorithm accounting simultaneously for these criteria.After computing a layout of appearances, we rely on by-example texture synthesis to produce the final preview.We demonstrate our approach on a database of production-level procedural textures.