NDLI: FastSplats: optimized splatting on rectilinear grids

Content Provider	IEEE Xplore Digital Library
Author	Jian Huang Mueller, K. Shareef, N. Crawfis, R.
Copyright Year	2000
Description	Author affiliation: Dept. of Comput. & Inf. Sci., Ohio State Univ., Columbus, OH, USA (Jian Huang)
Abstract	Splatting is widely applied in many areas, including volume, point-based and image-based rendering. Improvements to splatting, such as eliminating popping and color bleeding, occasion-based acceleration, post-rendering classification and shading, have all been recently accomplished. These improvements share a common need for efficient frame-buffer accesses. We present an optimized software splatting package, using a newly designed primitive, called FastSplat, to scan-convert footprints. Our approach does not use texture mapping hardware, but supports the whole pipeline in memory. In such an integrated pipeline, we are then able to study the optimization strategies and address image quality issues. While this research is meant for a study of the inherent trade-off of splatting, our renderer, purely in software, achieves 3- to 5-fold speedups over a top-end texture hardware implementation (for opaque data sets). We further propose a method of efficient occlusion culling using a summed area table of opacity. 3D solid texturing and bump mapping capabilities are demonstrated to show the flexibility of such an integrated rendering pipeline. A detailed numerical error analysis, in addition to the performance and storage issues, is also presented. Our approach requires low storage and uses simple operations. Thus, it is easily implementable in hardware.
Starting Page	219
Ending Page	226
File Size	986783
Page Count	8
File Format	PDF
ISBN	0780364783
DOI	10.1109/VISUAL.2000.885698
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-10-13
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hardware Pipelines Rendering (computer graphics) Hemorrhaging Acceleration Design optimization Software packages Packaging Image quality Solids
Content Type	Text
Resource Type	Article

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