From 346faf2e7951dd4ea6fe7fb3f677e34631145d88 Mon Sep 17 00:00:00 2001
From: Ericky Dos Santos <ericky@playtron.one>
Date: Tue, 6 Jan 2026 13:26:01 -0500
Subject: [PATCH] Make shader_f16 optional because it does not work in webgl

---
 wgpu/src/window/compositor.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/wgpu/src/window/compositor.rs b/wgpu/src/window/compositor.rs
index 0c354dfd..bbef994d 100644
--- a/wgpu/src/window/compositor.rs
+++ b/wgpu/src/window/compositor.rs
@@ -295,6 +295,13 @@ impl Compositor {
             ..limits
         });
 
+        // Request SHADER_F16 only if the adapter supports it (e.g., not available in WebGL2)
+        let required_features = if adapter.features().contains(wgpu::Features::SHADER_F16) {
+            wgpu::Features::SHADER_F16
+        } else {
+            wgpu::Features::empty()
+        };
+
         let mut errors = Vec::new();
 
         for required_limits in limits {
@@ -303,7 +310,7 @@ impl Compositor {
                     label: Some(
                         "iced_wgpu::window::compositor device descriptor",
                     ),
-                    required_features: wgpu::Features::SHADER_F16,
+                    required_features,
                     required_limits: required_limits.clone(),
                     memory_hints: wgpu::MemoryHints::MemoryUsage,
                     trace: wgpu::Trace::Off,