From 8fbf213817675357ef5a47f16589adb95cda1b4f Mon Sep 17 00:00:00 2001
From: gaaclarke <30870216+gaaclarke@users.noreply.github.com>
Date: Mon, 18 May 2026 11:15:05 -0700
Subject: [PATCH] Updated fragment shader sample to use uniform-by-name
 accessor (#2736)

Do not land until the following are on stable:
- https://github.com/flutter/flutter/pull/176728
- https://github.com/flutter/flutter/pull/176980

If you need help, consider asking for advice on the #hackers-devrel channel on [Discord].
---
 simple_shader/lib/main.dart | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/simple_shader/lib/main.dart b/simple_shader/lib/main.dart
index dea7caa88..037eb69b4 100644
--- a/simple_shader/lib/main.dart
+++ b/simple_shader/lib/main.dart
@@ -44,13 +44,15 @@ class MyHomePage extends StatelessWidget {
 }
 
 class ShaderPainter extends CustomPainter {
-  ShaderPainter({required this.shader});
-  ui.FragmentShader shader;
+  ShaderPainter({required this.shader})
+    : _resolution = shader.getUniformVec2('resolution');
+
+  final ui.FragmentShader shader;
+  final ui.UniformVec2Slot _resolution;
 
   @override
   void paint(Canvas canvas, Size size) {
-    shader.setFloat(0, size.width);
-    shader.setFloat(1, size.height);
+    _resolution.set(size.width, size.height);
 
     final paint = Paint()..shader = shader;
     canvas.drawRect(Rect.fromLTWH(0, 0, size.width, size.height), paint);