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Enable SHADER_F16 feature only when available #3183

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Merged
hecrj merged 1 commit into from
Jan 19, 2026
Merged

Enable SHADER_F16 feature only when available #3183

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9 changes: 8 additions & 1 deletion wgpu/src/window/compositor.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -148,13 +148,20 @@ 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 {
let result = adapter
.request_device(&wgpu::DeviceDescriptor {
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,
Expand Down