Helpful error message on empty backend

gfx-rs · Mar 19, 2019 · 508b724 · 508b724
1 parent 9f70c2e
commit 508b724
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/wgpu-native/src/instance.rs b/wgpu-native/src/instance.rs
@@ -149,7 +149,9 @@ pub fn instance_get_adapter(instance_id: InstanceId, desc: &AdapterDescriptor) -
         PowerPreference::LowPower => low.or(high),
         PowerPreference::HighPerformance | PowerPreference::Default => high.or(low),
     };
-    some.or(other).unwrap()
+    some
+        .or(other)
+        .expect("No adapters found. Please enable the feature for one of the graphics backends: vulkan, metal, dx12, dx11")
 }
 
 #[cfg(feature = "local")]