From 9bdc2bc491510353bf2189d1e7299a491cfb6e63 Mon Sep 17 00:00:00 2001
From: sunag <sunagbrasil@gmail.com>
Date: Fri, 24 Jul 2026 15:01:41 -0300
Subject: [PATCH] fix struct

---
 src/nodes/core/NodeUtils.js  | 6 ++++++
 src/nodes/core/StructNode.js | 7 ++++---
 src/nodes/tsl/TSLCore.js     | 8 +-------
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/src/nodes/core/NodeUtils.js b/src/nodes/core/NodeUtils.js
index 0b4c3495f8e0b1..09e4d54278af79 100644
--- a/src/nodes/core/NodeUtils.js
+++ b/src/nodes/core/NodeUtils.js
@@ -488,3 +488,9 @@ export function base64ToArrayBuffer( base64 ) {
 	return Uint8Array.from( atob( base64 ), c => c.charCodeAt( 0 ) ).buffer;
 
 }
+
+export function isArrayAsParameter( params ) {
+
+	return ( params[ 0 ] !== undefined && params[ 0 ] !== null ) && ( params[ 0 ].isNode || Object.getPrototypeOf( params[ 0 ] ) !== Object.prototype );
+
+}
diff --git a/src/nodes/core/StructNode.js b/src/nodes/core/StructNode.js
index 45653cbffc8e61..ef09da1bc87500 100644
--- a/src/nodes/core/StructNode.js
+++ b/src/nodes/core/StructNode.js
@@ -1,6 +1,7 @@
 import Node from './Node.js';
 import StructTypeNode from './StructTypeNode.js';
-import { nodeProxyConstructor } from '../tsl/TSLCore.js';
+import { nodeObject, nodeProxyConstructor } from '../tsl/TSLCore.js';
+import { isArrayAsParameter } from './NodeUtils.js';
 
 /**
  * StructNode allows to create custom structures with multiple members.
@@ -103,7 +104,7 @@ export const struct = ( membersLayout, name = null ) => {
 
 		if ( params.length > 0 ) {
 
-			if ( params[ 0 ].isNode ) {
+			if ( isArrayAsParameter( params ) ) {
 
 				values = {};
 
@@ -111,7 +112,7 @@ export const struct = ( membersLayout, name = null ) => {
 
 				for ( let i = 0; i < params.length; i ++ ) {
 
-					values[ names[ i ] ] = params[ i ];
+					values[ names[ i ] ] = nodeObject( params[ i ] );
 
 				}
 
diff --git a/src/nodes/tsl/TSLCore.js b/src/nodes/tsl/TSLCore.js
index e2185a06546c85..a798df175d3c12 100644
--- a/src/nodes/tsl/TSLCore.js
+++ b/src/nodes/tsl/TSLCore.js
@@ -8,7 +8,7 @@ import FlipNode from '../utils/FlipNode.js';
 import ConstNode from '../core/ConstNode.js';
 import MemberNode from '../utils/MemberNode.js';
 import StackTrace from '../core/StackTrace.js';
-import { getValueFromType, getValueType } from '../core/NodeUtils.js';
+import { getValueFromType, getValueType, isArrayAsParameter } from '../core/NodeUtils.js';
 import { warn, error } from '../../utils.js';
 
 let currentStack = null;
@@ -703,12 +703,6 @@ class ShaderCallNodeInternal extends Node {
 
 }
 
-function isArrayAsParameter( params ) {
-
-	return params[ 0 ] && ( params[ 0 ].isNode || Object.getPrototypeOf( params[ 0 ] ) !== Object.prototype );
-
-}
-
 function getLayoutParameters( params ) {
 
 	let output;