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EnvironmentBRDF.js

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import DFGLUT from './DFGLUT.js';
import { Fn } from '../../tsl/TSLBase.js';

const EnvironmentBRDF = /*@__PURE__*/ Fn( ( inputs ) => {

	const { dotNV, specularColor, specularF90, roughness } = inputs;

	const fab = DFGLUT( { dotNV, roughness } );
	return specularColor.mul( fab.x ).add( specularF90.mul( fab.y ) );

} );

export default EnvironmentBRDF;