添加关照、全局等高线、修改图层问题

static/sdk/three/jsm/nodes/code/ExpressionNode.js

@@ -0,0 +1,37 @@
+import Node, { addNodeClass } from '../core/Node.js';
+import { nodeProxy } from '../shadernode/ShaderNode.js';
+
+class ExpressionNode extends Node {
+
+	constructor( snippet = '', nodeType = 'void' ) {
+
+		super( nodeType );
+
+		this.snippet = snippet;
+
+	}
+
+	generate( builder, output ) {
+
+		const type = this.getNodeType( builder );
+		const snippet = this.snippet;
+
+		if ( type === 'void' ) {
+
+			builder.addLineFlowCode( snippet );
+
+		} else {
+
+			return builder.format( `( ${ snippet } )`, type, output );
+
+		}
+
+	}
+
+}
+
+export default ExpressionNode;
+
+export const expression = nodeProxy( ExpressionNode );
+
+addNodeClass( 'ExpressionNode', ExpressionNode );