RepTile Surfaces

FIGURE 3.28 - Reflectance after the AR Surface Property is Applied to the

Schott BK7 Glass

RepTile Surfaces Expert

Overview

When modeling objects that have many small repeated structures, it is often infeasible to create the structures using TracePro or any other solid modeling program. For example, brightness-enhancing films used in flat-panel LCDs may have thousands or millions of repeated surface structure elements. There are two ways to model such systems effectively via optical analysis in a timely manner: inclusion of a BSDF scatter function or implementation of a functional from for the shape and distribution of the replicated structure. The former is adequate for systems working in the far field, but for almost all systems it is better to use the latter functional form. The RepTile surface feature in TracePro accomplishes the latter by allowing you to create these objects by specifying the shape of one tile, an array of tiles. This feature allows you to create complicated models with a great reduction in model size, audit time, and ray-trace time compared to equivalent models with solid geometry.

To see how to define and use RepTile properties see “RepTile Examples” on page 9.1.

TracePro 5.0 User’s Manual

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