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Erschienen in:
2012 | OriginalPaper | Buchkapitel
A Blending and Hidden Surface Removal Method for Large-Scale Point-Based Models
verfasst von : Yan Jiang, Bo Yu, Yingjuan Sun
Erschienen in: Recent Advances in Computer Science and Information Engineering
Verlag: Springer Berlin Heidelberg
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In this paper, we design a new blending array
δ
-z
k
-buffer to improve the rendering quality and remove the hidden surface.
δ
-z
k
-buffer is a three-dimensional array according to the region of drawing and numbers of blending Surfels. It is controlled by the tolerance
δ
and generated during rendering process. We also design blending rendering algrithm based on non uniform partitioning point-octree data structure to realizes the balance of drawing speed and drawing quality according to the distance of viewpoint position and models. Point-octree data structure can filter invisible points before the time-consuming process of rendering and can help to select different detail levels according to the view point position to control the complexity and speed of rendering.