添加关照、全局等高线、修改图层问题

static/sdk/three/jsm/nodes/functions/BSDF/BRDF_Sheen.js

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+import { transformedNormalView } from '../../accessors/NormalNode.js';
+import { positionViewDirection } from '../../accessors/PositionNode.js';
+import { sheen, sheenRoughness } from '../../core/PropertyNode.js';
+import { tslFn, float } from '../../shadernode/ShaderNode.js';
+
+// https://github.com/google/filament/blob/master/shaders/src/brdf.fs
+const D_Charlie = tslFn( ( { roughness, dotNH } ) => {
+
+	const alpha = roughness.pow2();
+
+	// Estevez and Kulla 2017, "Production Friendly Microfacet Sheen BRDF"
+	const invAlpha = float( 1.0 ).div( alpha );
+	const cos2h = dotNH.pow2();
+	const sin2h = cos2h.oneMinus().max( 0.0078125 ); // 2^(-14/2), so sin2h^2 > 0 in fp16
+
+	return float( 2.0 ).add( invAlpha ).mul( sin2h.pow( invAlpha.mul( 0.5 ) ) ).div( 2.0 * Math.PI );
+
+} ).setLayout( {
+	name: 'D_Charlie',
+	type: 'float',
+	inputs: [
+		{ name: 'roughness', type: 'float' },
+		{ name: 'dotNH', type: 'float' }
+	]
+} );
+
+// https://github.com/google/filament/blob/master/shaders/src/brdf.fs
+const V_Neubelt = tslFn( ( { dotNV, dotNL } ) => {
+
+	// Neubelt and Pettineo 2013, "Crafting a Next-gen Material Pipeline for The Order: 1886"
+	return float( 1.0 ).div( float( 4.0 ).mul( dotNL.add( dotNV ).sub( dotNL.mul( dotNV ) ) ) );
+
+} ).setLayout( {
+	name: 'V_Neubelt',
+	type: 'float',
+	inputs: [
+		{ name: 'dotNV', type: 'float' },
+		{ name: 'dotNL', type: 'float' }
+	]
+} );
+
+const BRDF_Sheen = tslFn( ( { lightDirection } ) => {
+
+	const halfDir = lightDirection.add( positionViewDirection ).normalize();
+
+	const dotNL = transformedNormalView.dot( lightDirection ).clamp();
+	const dotNV = transformedNormalView.dot( positionViewDirection ).clamp();
+	const dotNH = transformedNormalView.dot( halfDir ).clamp();
+
+	const D = D_Charlie( { roughness: sheenRoughness, dotNH } );
+	const V = V_Neubelt( { dotNV, dotNL } );
+
+	return sheen.mul( D ).mul( V );
+
+} );
+
+export default BRDF_Sheen;