Proceedings: GI 2002

Layered Environment-Map Impostors for Arbitrary Scenes

Stefan Jeschke, Michael Wimmer, Heidrun Schuman

Proceedings of Graphics Interface 2002: Calgary, Alberta, Canada, 27 - 29 May 2002, 1-8

DOI 10.20380/GI2002.01

  • BibTeX

     title = {Layered Environment-Map Impostors for Arbitrary Scenes},
     author = {Stefan Jeschke and Michael Wimmer and Heidrun Schuman},
     booktitle = (Proceedings of the Graphics Interface 2002 Conference, May 27-29, 2002, Calgary, Alberta, Canada},
     url = {},
     year = {2002},
     month = {May},
     location = {Calgary, Alberta},
     pages = {1--8}


This paper presents a new impostor-based approach to accelerate the rendering of very complex static scenes. The scene is partitioned into viewing regions, and a layered impostor representation is precalculated for each of them. An optimal placement of impostor layers guarantees that our representation is indistinguishable from the original geometry. Furthermore the algorithm exploits common graphics hardware both during preprocessing and rendering. Moreover the impostor representation is compressed using several strategies to cut down on storage space.