Near-Optimum Adaptive Tessellation of General Catmull-Clark Subdivision Surfa es

Near-Optimum Adaptive Tessellation of General Catmull-Clark Subdivision Surfaces

A new adaptive tessellation method for general CatmullClark subdivision surfaces is presented. Development of the new method is based on the observation that optimum adaptive tessellation for rendering purpose is a recursive error evaluation and globalization process. The adaptive tessellation process is done by generating an inscribing polyhedron to approximate the limit surface for each indiv...

Robust and Error Controllable Boolean Operations on Free-Form Solids Represented by Catmull-Clark Subdivision Surfa es

Inscribed Approximation based Adaptive Tessellation of Catmull-Clark Subdivision Surfaces

Catmull-Clark subdivision scheme provides a powerful method for building smooth and complex surfaces. But the number of faces in the uniformly refined meshes increases exponentially with respect to subdivision depth. Adaptive tessellation reduces the number of faces needed to yield a smooth approximation to the limit surface and, consequently, makes the rendering process more efficient. In this...

Hardware Subdivision and Tessellation of Catmull-Clark Surfaces

We present a table driven approach to performing Catmull-Clark subdivision in parallel utilizing one thread per output mesh vertex. We apply the procedure one or two times in order to isolate extraordinary vertices and simplify the input patch structures consumed by the hardware unit responsible for adaptive tessellation. From this simplified mesh, we evaluate the performance Stam’s direct eval...

PREPRINT PREPRINT PREPRINT PREPRINT To appear TOG 2012 Feature Adaptive GPU Rendering of Catmull-Clark Subdivision Surfaces

We present a novel method for high-performance GPU based rendering of Catmull-Clark subdivision surfaces. Unlike previous methods, our algorithm computes the true limit surface up to machine precision, and is capable of rendering surfaces that conform to the full RenderMan specification for Catmull-Clark surfaces. Specifically, our algorithm can accommodate base meshes consisting of arbitrary v...