| 摘要 |
A shader for dynamically providing diurnal variation in radiance-based imagery is operable to load a virtual texture comprising a plurality of texels, each texel storing a plurality of analogical parameters. The shader is further operable load a thermal lookup table indexed by the plurality of analogical parameters and to dynamically generate an at-aperture radiance image for one of a plurality of times of day based on the loaded virtual texel and the thermal lookup table.
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