Multiple light field rendering

  • Authors:
  • Jarno van der Linden

  • Affiliations:
  • University of Auckland

  • Venue:
  • Proceedings of the 1st international conference on Computer graphics and interactive techniques in Australasia and South East Asia
  • Year:
  • 2003

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Abstract

A light field is a 4D function describing the radiance across a boundary between the volume containing a scene, and the disjoint volume in which the eyepoint may be placed. Light field rendering is the process of rendering novel views of a scene captured by the light field function. It is a purely image-based rendering technique which uses no geometric knowledge of the scene. Although the lack of needed geometric information make light fields an attractive way of capturing real-world scenes, it has made it difficult to effectively use light fields in combination with other rendering techniques, or even rendering multiple light fields in the same scene.We present a rendering method for light fields which allows multiple instances of a light field to be rendered in combination with a polygon rendered scene. Of particular note is our ability to render multiple light fields which appear to intersect in space consistently when viewed from any direction. The method is demonstrated by creating a forest consisting of thousands of instances of a tree light field, rendered on a polygon terrain.