Cascaded Light Propagation Volumes using Spherical Radial Basis Functions

TL;DR

This paper enhances cascaded light propagation volumes for indirect lighting in dynamic scenes by replacing Spherical Harmonics with Spherical Radial Basis Functions, resulting in improved accuracy when many coefficients are used.

Contribution

It introduces the integration of Spherical Radial Basis Functions into cascaded light propagation volumes, demonstrating superior performance over traditional Spherical Harmonics.

Findings

Spherical Radial Basis Functions outperform Spherical Harmonics with many coefficients.

The proposed method improves indirect lighting simulation accuracy.

Evaluation shows better results in dynamic scene lighting.

Abstract

This paper introduces a contribution made to one of the newest methods for simulating indirect lighting in dynamic scenes , the cascaded light propagation volumes . Our contribution consists on using Spherical Radial Basis Functions instead of Spherical Harmonic, since the first achieves much better results when many coefficients are used. We explain how to integrate the Spherical Radial Basis Functions with the cascaded light propagation volumes, and evaluate our technique against the same implementation, but with Spherical harmonics.