Volume Modeling
In volume graphics, objects are represented by a volume of sampled data points, rather than by a list of surface polygons or spline patches. This allows us to represent object interiors as well as their surfaces. These applications are challenging because volumetric objects may consist of hundreds of thousands of volume elements. For real-time interaction, algorithms must make trade offs between physical realism and speed.
Background & Objective: In the image sequence here, 3D volume models of a bolt and washer are interactively assembled. Collisions between the two objects are detected to prevent the two models from interpenetrating.
Technical Discussion: In another application, a 2D, irregularly shaped object is interactively manipulated. Using 3D ChainMail, a fast algorithm for deforming volumetric objects, we are able to deform volumes with as many as 125,000 elements at interactive rates (see TR96-22). We are currently investigating volumetric approaches for cutting, glueing, and painting deformable volumetric object (see TR97-02). In addition, we are looking at ways to render smooth, shaded surfaces of volumetirc objects for interactive applications.
Contacts:
Joseph Katz
| Technical Reports: | |
| Simulating Surgery using Volumetric Object Representations, Real-Time Volume Rendering and Haptic Feedback | |
| 3D ChainMail: a Fast Algorithm for Deforming Volumetric Objects | |
| Beyond Volume Rendering: Visualization, Haptic Exploration, and Physical Modeling of Voxel-based Objects | |
Technology Area: Graphics
Modification Date: January 23, 2007
