switch to `Backends::PRIMARY`

code/beginner/tutorial2-surface/src/challenge.rs

@@ -28,7 +28,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial3-pipeline/src/challenge.rs

@@ -26,7 +26,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial3-pipeline/src/lib.rs

@@ -28,7 +28,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial4-buffer/src/challenge.rs

@@ -89,7 +89,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial4-buffer/src/lib.rs

@@ -85,7 +85,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial5-textures/src/challenge.rs

@@ -91,7 +91,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial5-textures/src/lib.rs

@@ -91,7 +91,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial6-uniforms/src/challenge.rs

@@ -241,7 +241,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial6-uniforms/src/lib.rs

@@ -241,7 +241,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial7-instancing/src/challenge.rs

@@ -295,7 +295,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial7-instancing/src/lib.rs

@@ -302,7 +302,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial8-depth/src/challenge.rs

@@ -494,7 +494,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial8-depth/src/lib.rs

@@ -312,7 +312,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/beginner/tutorial9-models/src/lib.rs

@@ -252,7 +252,10 @@ impl<'a> State<'a> {
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         log::warn!("WGPU setup");
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            #[cfg(not(target_arch="wasm32"))]
+            backends: wgpu::Backends::PRIMARY,
+            #[cfg(target_arch="wasm32")]
+            backends: wgpu::Backends::GL,
             ..Default::default()
         });
 

code/intermediate/tutorial10-lighting/src/lib.rs

@@ -347,7 +347,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/intermediate/tutorial11-normals/src/lib.rs

@@ -347,7 +347,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/intermediate/tutorial12-camera/src/lib.rs

@@ -227,7 +227,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/intermediate/tutorial13-hdr/src/lib.rs

@@ -250,7 +250,7 @@ impl<'a> State<'a> {
             #[cfg(target_arch = "wasm32")]
             backends: wgpu::Backends::BROWSER_WEBGPU,
             #[cfg(not(target_arch = "wasm32"))]
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/intermediate/wip-terrain/src/lib.rs

@@ -228,7 +228,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/showcase/compute/src/main.rs

@@ -166,7 +166,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/showcase/framework/src/lib.rs

@@ -36,7 +36,7 @@ impl<'a> Display<'a> {
     pub async fn new(window: &'a Window) -> Result<Display<'a>, Error> {
         let size = window.inner_size();
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
         let surface = instance.create_surface(window).unwrap();

code/showcase/mouse-picking/src/lib.rs

@@ -232,7 +232,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/showcase/pong/src/render/mod.rs

@@ -41,7 +41,7 @@ impl<'a> Render<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

code/showcase/threading/src/lib.rs

@@ -226,7 +226,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });
 

docs/beginner/tutorial2-surface/README.md

@@ -61,7 +61,7 @@ impl<'a> State<'a> {
         // The instance is a handle to our GPU
         // Backends::all => Vulkan + Metal + DX12 + Browser WebGPU
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            backends: wgpu::Backends::all(),
+            backends: wgpu::Backends::PRIMARY,
             ..Default::default()
         });