Abstract 7
  *  Real-Time Relief Mapping on Arbitrary Polygonal Surfaces
     (ACM SIGGRAPH 2005 Symposium on Interactive 3D Graphics and Games)
  *  An Efficient Representation for Surface Details   (Technical Report, UFRGS 2005)
  *  Automatic Impostor Placement for Guaranteed Frame Rates  
     (ACM SIGGRAPH 2005 Symposium on Interactive 3D Graphics and Games)

  *  Geopostors A Real-Time Geometry Impostor Crowd Rendering System

     (ACM SIGGRAPH 2005 Symposium on Interactive 3D Graphics and Games)
  *  A Lighting Model for General Participating Media
     (ACM SIGGRAPH 2005 Symposium on Interactive 3D Graphics and Games)