Module: tfg.math.spherical_harmonics

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This module implements routines required for spherical harmonics lighting.

Functions

evaluate_legendre_polynomial(...): Evaluates the Legendre polynomial of degree l and order m at x.

evaluate_spherical_harmonics(...): Evaluates a point sample of a Spherical Harmonic basis function.

generate_l_m_permutations(...): Generates permutations of degree l and order m for spherical harmonics.

generate_l_m_zonal(...): Generates l and m coefficients for zonal harmonics.

integration_product(...): Computes the integral of harmonics1.harmonics2 over the sphere.

rotate_zonal_harmonics(...): Rotates zonal harmonics.

tile_zonal_coefficients(...): Tiles zonal coefficients.