Smooth View-Dependent Rendering in Animations
Axel Friedrich, Konrad Polthier, Markus Schmies · 1999
View-dependent rendering allows interactive visualization of larger scenes. A well-known artifact is the popping problem in animations resulting from temporal differences in the level of detail between the view-dependent representations used in subsequent frames. We solve the popping problem by computing view-dependent representations of a scene only at every #-th frame, and smoothly interpolate adjacent keyframe sections to obtain the representations for all in-between frames. Additionally, we accelerate rendering at only minor accuracy costs since interpolation is much faster than computing a view-dependent for each displayed frame. We use scenes represented as triangle hierarchies and fulfilling a special constraint allowing for fast interpolation without remeshing. In contrast to other approaches our method naturally extends to animated scenes whose geometry and mesh may adaptively change in time. Keywords: animation, shape interpolation, adaptive refinement, level-of-detail, mult...