Hierarchical image-based rendering using texture mapping hardware

Conference · Fri Jan 15 00:00:00 EST 1999

DOI:https://doi.org/10.1007/978-3-7091-6809-7_6· OSTI ID:9377

Max, N

Multi-layered depth images containing color and normal information for subobjects in a hierarchical scene model are precomputed with standard z-buffer hardware for six orthogonal views. These are adaptively selected according to the proximity of the viewpoint, and combined using hardware texture mapping to create ''reprojected'' output images for new viewpoints. (If a subobject is too close to the viewpoint, the polygons in the original model are rendered.) Specific z-ranges are selected from the textures with the hardware alpha test to give accurate 3D reprojection. The OpenGL color matrix is used to transform the precomputed normals into their orientations in the final view, for hardware shading.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE Office of Defense Programs (DP) (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 9377
• Report Number(s): UCRL-JC-132830; YN0100000; YN0100000; TRN: AH200122%%292
• Resource Relation: Conference: 10th Eurographics Workshop on Rendering, Granada (ES), 06/21/1999--06/23/1999; Other Information: PBD: 15 Jan 1999
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COLOR
TEXTURE
MAPPING
COMPUTERS
PROGRAMMING