HLODs:
Hierarchical Simplifications for Faster Display of Massive Geometric Environments

Images

Power Plant
Figure 3: The Power Plant, a model consisting of 12,731,154 faces and 1,477 objects. The original model is on the left. LODs of the model are shown in the middle consisting of 2,515 faces. A more solid HLOD approximation consisting of 2,379 faces is shown on the right.

Double Eagle LODs
Figure 4: The Double Eagle tanker, a model consisting of 126,630 objects and 82,361,612 triangles. The original model is on the left. The right two images are LODs consisting of 7,887 and 1,922 faces.
Double Eagle HLODs
Figure 5: HLODs of the Double Eagle. The original model is on the left. The right two images are HLODs consisting of 7,710 and 1,914 faces. Notice how HLODs give a more solid approximation of the model.

Figure 6 - Bronco LODs
Figure 6: LODs of the Ford Bronco model. They consist of 74,308 faces (the original model), 1,357 faces, 341 faces, and 108 faces.
Figure 7 - Bronco HLODs
Figure 7: HLODs of the Ford Bronco model. They consist of 74,308 faces, 1,357 faces, 338 faces, and 80 faces.

Figure 3 - View dependent effects through partitioning
Figure 8: A demonstration of how HLODs generated with partitioning approximate view-dependent simplification.

Comments: hunt@cs.unc.edu.
Last updated: April 28, 2000