Automatic impostor placement for guaranteed frame rates and low memory requirements

Impostors are image-based primitives commonly used to replace complex geometry in order to reduce the rendering time needed for displaying complex scenes. However, a big problem is the huge amount of memory required for impostors. This paper presents an algorithm that automatically places impostors into a scene so that a desired frame rate and image quality is always met, while at the same time not requiring enormous amounts of impostor memory. The low memory requirements are provided by a new placement method and through the simultaneous use of other acceleration techniques like visibility culling and geometric levels of detail. CR Categories: I.3.3 [Computer Graphics]: Picture/Image Generation—Viewing Algorithms I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Virtual Reality

• Type: Conference
• Year: 2005
• Where: SI3D
• Authors: Stefan Jeschke, Michael Wimmer, Heidrun Schumann, Werner Purgathofer
• Keywords: Computer Graphics, Impostor, Low Memory Requirements, SI3D 2005