39 lines
1.5 KiB
TypeScript
39 lines
1.5 KiB
TypeScript
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declare namespace _default {
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export { SPHERICAL_HARMONICS };
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export { SPHERICAL_HARMONICS_AZIMUTH_RESOLUTION };
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export { SPHERICAL_HARMONICS_ELEVATION_RESOLUTION };
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export { SPHERICAL_HARMONICS_MAX_ORDER };
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export { MAX_RE_WEIGHTS };
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export { MAX_RE_WEIGHTS_RESOLUTION };
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}
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export default _default;
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/**
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* Pre-computed Spherical Harmonics Coefficients.
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*
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* This function generates an efficient lookup table of SH coefficients. It
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* exploits the way SHs are generated (i.e. Ylm = Nlm * Plm * Em). Since Nlm
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* & Plm coefficients only depend on theta, and Em only depends on phi, we
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* can separate the equation along these lines. Em does not depend on
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* degree, so we only need to compute (2 * l) per azimuth Em total and
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* Nlm * Plm is symmetrical across indexes, so only positive indexes are
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* computed ((l + 1) * (l + 2) / 2 - 1) per elevation.
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* @type {Float32Array}
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*/
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declare const SPHERICAL_HARMONICS: Float32Array;
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/** @type {Number} */
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declare const SPHERICAL_HARMONICS_AZIMUTH_RESOLUTION: number;
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/** @type {Number} */
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declare const SPHERICAL_HARMONICS_ELEVATION_RESOLUTION: number;
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/**
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* The maximum allowed ambisonic order.
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* @type {Number}
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*/
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declare const SPHERICAL_HARMONICS_MAX_ORDER: number;
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/**
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* Pre-computed per-band weighting coefficients for producing energy-preserving
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* Max-Re sources.
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*/
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declare const MAX_RE_WEIGHTS: number[][];
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/** @type {Number} */
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declare const MAX_RE_WEIGHTS_RESOLUTION: number;
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