COMPUTING AND RAY TRACING POINT-BASED GEOMETRY
In this paper a new technique for computing and ray tracing point based geometry is presented. It uses a novel point primitive that is called Spherical Patch Point (SPP) to approximate the vicinity of a surface point. Due to property of curvature, SPP can achieve similar visual quality compared with previous methods with much fewer primitives for the cost of a few additional bytes per point and thus makes a significant reduction in rendering time. During pre-process,important attributes are added to each SPP for the purpose of ray tracing. During rendering, an intersection algorithm different from previous ones has been demonstrated to get satisfied results. The proposed technique makes it possible to render high quality ray traced images with global illumination using SPPs. It offers a higher ray tracing speed in comparison with previous methods.
Points Curvature Sphere Radius Ray tracing
YONG QUAN WEN-HUI LI YUN-JIE PANG BIN ZHOU
Computer Graphics Laboratory, College of Computer Science and Technology, Jilin University, Qianwei Key Laboratory for Symbolic Computation and Knowledge Engineering of Ministry of Education
国际会议
2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)
大连
英文
3982-3986
2006-08-13（万方平台首次上网日期，不代表论文的发表时间）