Fix shader compilation errors

crates/fj-viewer/src/graphics/shader.wgsl

@@ -1,22 +1,22 @@
 struct VertexOutput {
-    [[builtin(position)]] position: vec4<f32>;
-    [[location(0)]] normal: vec3<f32>;
-    [[location(1)]] color: vec4<f32>;
+    @builtin(position) position: vec4<f32>,
+    @location(0) normal: vec3<f32>,
+    @location(1) color: vec4<f32>,
 };
 
 struct Uniforms {
-    transform: mat4x4<f32>;
-    transform_normals: mat4x4<f32>;
+    transform: mat4x4<f32>,
+    transform_normals: mat4x4<f32>,
 };
 
-[[group(0), binding(0)]]
+@group(0) @binding(0)
 var<uniform> uniforms: Uniforms;
 
-[[stage(vertex)]]
+@vertex
 fn vertex(
-    [[location(0)]] position: vec3<f32>,
-    [[location(1)]] normal: vec3<f32>,
-    [[location(2)]] color: vec4<f32>,
+    @location(0) position: vec3<f32>,
+    @location(1) normal: vec3<f32>,
+    @location(2) color: vec4<f32>,
 )
     -> VertexOutput
 {
@@ -31,8 +31,8 @@ fn vertex(
 
 let pi: f32 = 3.14159265359;
 
-[[stage(fragment)]]
-fn frag_model(in: VertexOutput) -> [[location(0)]] vec4<f32> {
+@fragment
+fn frag_model(in: VertexOutput) -> @location(0) vec4<f32> {
     let light = vec3<f32>(0.0, 0.0, -1.0);
 
     let angle = acos(dot(light, -in.normal));
@@ -45,12 +45,12 @@ fn frag_model(in: VertexOutput) -> [[location(0)]] vec4<f32> {
     return color;
 }
 
-[[stage(fragment)]]
-fn frag_mesh(in: VertexOutput) -> [[location(0)]] vec4<f32> {
+@fragment
+fn frag_mesh(in: VertexOutput) -> @location(0) vec4<f32> {
     return vec4<f32>(1.0 - in.color.rgb, in.color.a);
 }
 
-[[stage(fragment)]]
-fn frag_lines(in: VertexOutput) -> [[location(0)]] vec4<f32> {
+@fragment
+fn frag_lines(in: VertexOutput) -> @location(0) vec4<f32> {
     return vec4<f32>(in.color.rgb, in.color.a);
 }