“Improving frameless rendering by focusing on change” by Dayal, Watson and Luebke

  • ©Abhinav Dayal, Benjamin Watson, and David P. Luebke



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    Improving frameless rendering by focusing on change

Session/Category Title:   Rendering



    Realtime rendering requires accurate display of a dynamic scene with minimal delay. Frameless rendering [Bishop et al. 1994] offers unique flexibility in this regard: because it samples time per pixel, it can respond to change with very little delay, and at any location in the image. However, sampling is random, resulting in blurring in changing image regions. We present an approach for improving frameless rendering by making sampling sensitive to change in the image, as suggested in [Bishop et al. 1994]. By measuring this change in visual terms, we are able to direct sampling to those regions of change. The resulting algorithm produces sharper imagery, while introducing minimal overhead into the standard frameless algorithm.


    1. Bishop, G., Fuchs, F., McMillan, L. and Zagier, E. 1994. Frameless Rendering: Double Buffering Considered Harmful. In Proceedings of SIGGRAPH 1994, ACM Press/ACM SIGGRAPH, New York. A. Glassner, Ed., Computer Graphics Proceedings, Annual Conference Series, ACM, 175–176.
    2. Parker, S., Martin, W., Sloan, P., Shirley, P., Smits, B. and Hansen, C. 1999. Interactive Ray Tracing. In Proceedings of ACM Symposium on Interactive 3D Computer Graphics, 119–126.
    3. Bergman, L., Fuchs, H., Grant, E. and Spach, S 1986. Image Rendering by Adaptive Refinement. In Proceedings of SIGGRAPH 1986, Computer Graphics 20, 4, 29–37.

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