添加关照、全局等高线、修改图层问题

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

@@ -0,0 +1,59 @@
+import F_Schlick from './F_Schlick.js';
+import V_GGX_SmithCorrelated from './V_GGX_SmithCorrelated.js';
+import V_GGX_SmithCorrelated_Anisotropic from './V_GGX_SmithCorrelated_Anisotropic.js';
+import D_GGX from './D_GGX.js';
+import D_GGX_Anisotropic from './D_GGX_Anisotropic.js';
+import { transformedNormalView } from '../../accessors/NormalNode.js';
+import { positionViewDirection } from '../../accessors/PositionNode.js';
+import { iridescence, alphaT, anisotropyT, anisotropyB } from '../../core/PropertyNode.js';
+import { tslFn, defined } from '../../shadernode/ShaderNode.js';
+
+// GGX Distribution, Schlick Fresnel, GGX_SmithCorrelated Visibility
+const BRDF_GGX = tslFn( ( inputs ) => {
+
+	const { lightDirection, f0, f90, roughness, f, USE_IRIDESCENCE, USE_ANISOTROPY } = inputs;
+
+	const normalView = inputs.normalView || transformedNormalView;
+
+	const alpha = roughness.pow2(); // UE4's roughness
+
+	const halfDir = lightDirection.add( positionViewDirection ).normalize();
+
+	const dotNL = normalView.dot( lightDirection ).clamp();
+	const dotNV = normalView.dot( positionViewDirection ).clamp(); // @ TODO: Move to core dotNV
+	const dotNH = normalView.dot( halfDir ).clamp();
+	const dotVH = positionViewDirection.dot( halfDir ).clamp();
+
+	let F = F_Schlick( { f0, f90, dotVH } );
+	let V, D;
+
+	if ( defined( USE_IRIDESCENCE ) ) {
+
+		F = iridescence.mix( F, f );
+
+	}
+
+	if ( defined( USE_ANISOTROPY ) ) {
+
+		const dotTL = anisotropyT.dot( lightDirection );
+		const dotTV = anisotropyT.dot( positionViewDirection );
+		const dotTH = anisotropyT.dot( halfDir );
+		const dotBL = anisotropyB.dot( lightDirection );
+		const dotBV = anisotropyB.dot( positionViewDirection );
+		const dotBH = anisotropyB.dot( halfDir );
+
+		V = V_GGX_SmithCorrelated_Anisotropic( { alphaT, alphaB: alpha, dotTV, dotBV, dotTL, dotBL, dotNV, dotNL } );
+		D = D_GGX_Anisotropic( { alphaT, alphaB: alpha, dotNH, dotTH, dotBH } );
+
+	} else {
+
+		V = V_GGX_SmithCorrelated( { alpha, dotNL, dotNV } );
+		D = D_GGX( { alpha, dotNH } );
+
+	}
+
+	return F.mul( V ).mul( D );
+
+} ); // validated
+
+export default BRDF_GGX;