NodeBuilder: Rename `.monitor` to `.observer` (#30354)

src/materials/nodes/NodeMaterial.js

@@ -521,9 +521,9 @@ class NodeMaterial extends Material {
 
 		builder.addFlow( 'fragment', builder.removeStack() );
 
-		// < MONITOR >
+		// < OBSERVER >
 
-		builder.monitor = this.setupObserver( builder );
+		builder.observer = this.setupObserver( builder );
 
 	}
 

src/nodes/core/NodeBuilder.js

@@ -177,7 +177,7 @@ class NodeBuilder {
 		 * @type {NodeMaterialObserver?}
 		 * @default null
 		 */
-		this.monitor = null;
+		this.observer = null;
 
 		/**
 		 * A reference to the current lights node.

src/renderers/common/RenderObject.js

@@ -361,7 +361,7 @@ class RenderObject {
 	 */
 	getMonitor() {
 
-		return this._monitor || ( this._monitor = this.getNodeBuilderState().monitor );
+		return this._monitor || ( this._monitor = this.getNodeBuilderState().observer );
 
 	}
 

src/renderers/common/nodes/NodeBuilderState.js

@@ -22,10 +22,10 @@ class NodeBuilderState {
 	 * @param {Array<Node>} updateNodes - An array of nodes that implement their `update()` method.
 	 * @param {Array<Node>} updateBeforeNodes - An array of nodes that implement their `updateBefore()` method.
 	 * @param {Array<Node>} updateAfterNodes - An array of nodes that implement their `updateAfter()` method.
-	 * @param {NodeMaterialObserver} monitor - A node material observer.
+	 * @param {NodeMaterialObserver} observer - A node material observer.
 	 * @param {Array<Object>} transforms - An array with transform attribute objects. Only relevant when using compute shaders with WebGL 2.
 	 */
-	constructor( vertexShader, fragmentShader, computeShader, nodeAttributes, bindings, updateNodes, updateBeforeNodes, updateAfterNodes, monitor, transforms = [] ) {
+	constructor( vertexShader, fragmentShader, computeShader, nodeAttributes, bindings, updateNodes, updateBeforeNodes, updateAfterNodes, observer, transforms = [] ) {
 
 		/**
 		 * The native vertex shader code.
@@ -98,7 +98,7 @@ class NodeBuilderState {
 		 *
 		 * @type {NodeMaterialObserver}
 		 */
-		this.monitor = monitor;
+		this.observer = observer;
 
 		/**
 		 * How often this state is used by render objects.

src/renderers/common/nodes/Nodes.js

@@ -289,7 +289,7 @@ class Nodes extends DataMap {
 			nodeBuilder.updateNodes,
 			nodeBuilder.updateBeforeNodes,
 			nodeBuilder.updateAfterNodes,
-			nodeBuilder.monitor,
+			nodeBuilder.observer,
 			nodeBuilder.transforms
 		);