Nodes: Line2NodeMaterial - simplify extension (#28160)

* move  setupShader to setup

* fix update signalling

---------

Co-authored-by: aardgoose <[email protected]>

examples/jsm/nodes/materials/Line2NodeMaterial.js

@@ -43,9 +43,15 @@ class Line2NodeMaterial extends NodeMaterial {
 		this.dashSizeNode = null;
 		this.gapSizeNode = null;
 
+		this.setValues( params );
+
+	}
+
+	setup( builder ) {
+
 		this.setupShaders();
 
-		this.setValues( params );
+		super.setup( builder );
 
 	}
 
@@ -371,8 +377,6 @@ class Line2NodeMaterial extends NodeMaterial {
 
 		} )();
 
-		this.needsUpdate = true;
-
 	}
 
 
@@ -387,7 +391,7 @@ class Line2NodeMaterial extends NodeMaterial {
 		if ( this.useWorldUnits !== value ) {
 
 			this.useWorldUnits = value;
-			this.setupShaders();
+			this.needsUpdate = true;
 
 		}
 
@@ -405,7 +409,7 @@ class Line2NodeMaterial extends NodeMaterial {
 		if ( this.useDash !== value ) {
 
 			this.useDash = value;
-			this.setupShaders();
+			this.needsUpdate = true;
 
 		}
 
@@ -423,7 +427,7 @@ class Line2NodeMaterial extends NodeMaterial {
 		if ( this.useAlphaToCoverage !== value ) {
 
 			this.useAlphaToCoverage = value;
-			this.setupShaders();
+			this.needsUpdate = true;
 
 		}