Movies

The following movies show prototypical visualization applications currently under development at KeckCAVES. All movies were captured with a tripod-mounted or hand-held video camcorder and show the 3D models displayed in the CAVE from the camcorder's point of view. Stereo projection was disabled to minimize flickering in the movies, and the person in the CAVE did not see the 3D models from the correct point of view. The movies were cut using Adobe Premiere, but not manipulated in any other way. Click each still image to download the full movie in MPEG-1 format.
(MPEG-1, 28MB) A basic overview of immersive visualization in the CAVE, including view-dependent projection, navigation, interaction with GUI elements, and manipulation of 3D data. The program featured in the beginning of the movie is an Earth viewer showing a global earthquake catalog showing hypocenters of earthquakes of magnitude 5.0 or more from the last 65 years (62,000 events total). The events are color-coded by magnitude (5.0 - green, 7.0 - blue, 9.0 - red). The end of the movie features the Nanotech Construction Kit.
(MPEG-1, 27MB) Exploring and analyzing a high-resolution tripod LiDAR laser scan of the UC Davis water tower and Mondavi Center using a multiresolution point set visualization program. The visualized point set contains about 4.7 million 3D points with intensity values that randomly sample all surfaces in the scanned area. The program uses a 3D paint brush interface to allow a user to select subsets of points and extract geometrical properties of those subsets, such as plane equations. The visualized data set was provided by Gerald Bawden of the US Geological Survey.
(MPEG-1, 61MB) Newer movie showing basic navigation and data analysis using the LiDAR viewer. First, the user visually explores a LiDAR scan of the UC Davis Mondavi Center for Performing Arts. Then the user measures a small feature (an air duct), and fits a cylinder to that feature by interactively selecting points on its surface. Next, the user assesses the quality of a LiDAR scan of a geothermal pipe by looking for misalignments between individual LiDAR scans. The user then fits cylinders to both parts of the mismatch to measure its exact extent. Finally, the user visually explores an airborne LiDAR scan of a region south of Sacramento, and evaluates an accidental levee breach by extracting a ground plane and visualizing the elevation of data above that plane.
(MPEG-1, 24MB) Exploring a model of the Lake Tahoe basin using a multiresolution terrain visualization program. The visualized data is a combination of a 10m-resolution digital elevation map provided by the US Geological Survey, and a 1m-resolution color image provided by the commercial IKONOS earth observation satellite.
(MPEG-1, 29MB) Exploring model of seismic wave velocities in the Earth's mantle using an interactive visualization program for 3D gridded data. The visualized data set was provided by Barbara Romanowicz of the UC Berkeley Seismological Lab. (Note: The movie is a relatively rough cut.)
(MPEG-4, 29MB) A collaborative visualization experiment, where users from KeckCAVES and IDAV's VR lab jointly explore a 3D gridded dataset using a shared version of 3D Visualizer. The experiment uses a real-time 3D video connection to map the remote user into the local user's virtual space, to support intuitive and natural interaction.
(MPEG-1, 25MB) Using the Nanotech Construction Kit to create a Buckyball (C-60 Buckminsterfullerene) from scratch, one atom at a time. Each triangle represents a single carbon atom. This movie (MPEG-1, 17MB) shows the same process from the point of view of a user, in a two-handed responsive workbench environment.
As a side note, creating the Buckyball in the two-handed VR environment using proper stereoscopic projection took about 2:30 minutes; creating the same Buckyball in the one-handed CAVE (with stereo disabled for video capture) took about 8:30 minutes (the movie shows only a few excerpts).
(MPEG-1, 22MB) Manipulating a protein model using the VR version of ProtoShop. The visualized protein was created from scratch, by defining a "random" amino acid sequence, creating secondary structures, and assembling the structures into a barrel shape manually.