Fast Global Illumination on Dynamic Height Fields: Supplemental Material
نویسندگان
چکیده
In the case of direct-illumination, we represent visibility at each azimuthal direction in the NLP basis, whereas the approach in [SN08] simply stores the maximum blocking angle. In order to construct the SH visibility per azimuthal wedge, we use the NLP-to-SH blending matrices, whereas the approach in [SN08] queries pre-computed 2D tables of linearly blended SH projections of individual SH wedge functions. We interpolate pre-projected and blurred representations of the maximum blocking angle instead of using interpolated angles to query SH projections.
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