添加关照、全局等高线、修改图层问题

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

@@ -0,0 +1,13 @@
+import DFGApprox from './DFGApprox.js';
+import { tslFn } from '../../shadernode/ShaderNode.js';
+
+const EnvironmentBRDF = tslFn( ( inputs ) => {
+
+	const { dotNV, specularColor, specularF90, roughness } = inputs;
+
+	const fab = DFGApprox( { dotNV, roughness } );
+	return specularColor.mul( fab.x ).add( specularF90.mul( fab.y ) );
+
+} );
+
+export default EnvironmentBRDF;