TY  - CONF
SN  - 9728865392; 9789728865399
Y1  - 2006///
EP  - 298
A1  - Zakaria, N.
A1  - Belaton, B.
A1  - Talib, A.Z.H.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-74949083515&partnerID=40&md5=b49ad1aceabc191188fb3b21c58c8000
AV  - none
CY  - Setubal
ID  - scholars76
TI  - Simple and fast ray tracing of point-based geometry
SP  - 293
KW  - Disk representation; Fast ray tracing; Implicit surfaces; Kd-tree; Point primitives; Point set; Point-based geometry; Prototype implementations; Speed-ups; Splatting
KW  -  Computer graphics; Disks (structural components); Elementary particle sources; Geometry; Software prototyping
KW  -  Ray tracing
N2  - We discuss in this paper a framework for simple and fast ray tracing of point-based geometry. Our solution requires neither implicit surface definition nor the use of non-simple rays. Points are simply treated as disk primitives. To prevent shading artifacts due to the use of disk representation, each ray is intersected with a few disks, and the intersection results interpolated. Further, to speed up the ray-object search, we adapt the KD-tree with bounding spheres structure applied in the QSplat point splatting system (Rusinkiewicz and Levoy 2000). Our prototype implementation is generally competitive compared to previous point set ray tracers. Further it demonstrates considerable speedup over a point set ray tracer based on a conventional KD-tree, while producing images with acceptable ray-traced quality.
N1  - cited By 0; Conference of GRAPP 2006 - 1st International Conference on Computer Graphics Theory and Applications ; Conference Date: 25 February 2006 Through 28 February 2006; Conference Code:79051
ER  -