CanvasRenderer: texture.onUpdate() support. See #7628

examples/js/renderers/CanvasRenderer.js

@@ -863,8 +863,12 @@ THREE.CanvasRenderer = function ( parameters ) {
 
 		}
 
+		var pattern = _context.createPattern( canvas, repeat );
+
+		if ( texture.onUpdate ) texture.onUpdate( texture );
+
 		return {
-			canvas: _context.createPattern( canvas, repeat ),
+			canvas: pattern,
 			version: texture.version
 		};