“mage-space construction of displaced normal maps”

  • ©Ivan Neulander

  • ©Ivan Neulander

  • ©Ivan Neulander

  • ©Ivan Neulander

  • ©Ivan Neulander

  • ©Ivan Neulander

  • ©Ivan Neulander

Conference:


Type:


Title:

    mage-space construction of displaced normal maps

Presenter(s)/Author(s):



Abstract:


    We present a hybrid 2D/3D algorithm for effeciently deriving a nor- mal map of displacement-mapped polygonal geometry. Unlike the traditional bump-mapping approach by [Blinn 1978], ours is based on a physical representation of the true displaced mesh. It is therefore more accurate and less restrictive, easily handling a variety of procedural displacements. What makes our approach unique is that it does not entail finely tessellating the polygonal mesh or dicing it into REYES micropolygons.

References:


    Blinn, J. F. 1978. Simulation of wrinkled surfaces. In SIGGRAPH ’78, ACM Press, New York, NY, USA, 286–292.
    Smits, B. E., Shirley, P., and Stark, M. M. 2000. Direct ray tracing of displacement mapped triangles. In Eurographics 2000, Springer-Verlag, London, UK, 307–318.


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