Interactive Geometry Lab
The Interactive Geometry Lab is a research group within the Institute of Visual Computing of ETH Zurich, led by Prof. Olga Sorkine-Hornung. We do research in Computer Graphics, focusing on interactive shape modeling and animation, digital geometry processing, as well as image and video processing.
Below we provide some examples related to game research.
Fast Automatic Skinning Transformations
We present a method to automatically determine 2D and 3D skinning transformations from a sparse set of controls. We achieve high quality deformations by minimizing a nonlinear energy function, while keeping our algorithm extremely fast. Read more
Elasticity-Inspired Deformers for Character Articulation
We present a new automatic skinning technique which mimics the quality of nonlinear elastic simulation. Our method achieves higher-quality results than both linear blend (LBS) and dual quaternion skinning (DQS) with minimal additional costs. Read more
Bounded Biharmonic Weights for Real-Time Deformation
Bounded biharmonic blending supports points, bones, and cages arranged in an arbitrary configuration. The weight computation is done at bind time so that high-quality deformations can be computed in real time with low CPU utilization. Read more
Stretchable and Twistable Bones for Skeletal Shape Deformation
Skeleton-based linear blend skinning (LBS) remains the most popular method for real-time character deformation and animation. The key to its success is its simple implementation and fast execution. Read more
Accurate and Efficient Lighting for Skinned Models
In the context of real-time, GPU-based rendering of animated skinned meshes, we propose a new algorithm to compute surface normals with minimal overhead both in terms of the memory footprint and the required per-vertex operations. Read more
Tangible and Modular Input Device for Character Articulation
Articulation of 3D characters requires control over many degrees of freedom: a difficult task with standard 2D interfaces. We present a tangible input device composed of interchangeable, hot-pluggable parts. Read more