Computer generated holograms from three dimensional meshes using an analytic light transport model

L. Ahrenberg, Philip William Benzie, M. Magnor, John Watson

Research output: Contribution to journalArticle

114 Citations (Scopus)


We present a method to analytically compute the light distribution of triangles directly in frequency space. This allows for fast evaluation, shading, and propagation of light from 3D mesh objects using angular spectrum methods. The algorithm complexity is only dependent on the hologram resolution and the polygon count of the 3D model. In contrast to other polygon based computer generated holography methods we do not need to perform a Fourier transform per surface. The theory behind the approach is derived, and a suitable algorithm to compute a digital hologram from a general triangle mesh is presented. We review some first results rendered on a spatial-light-modulator-based display by our proof-of-concept software.
Original languageEnglish
Pages (from-to)1567-1574
Number of pages8
JournalApplied Optics
Issue number10
Publication statusPublished - 1 Apr 2008



  • Computer generated holography

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