Copy https://github.com/alaingalvan/webgpu-seed

src/shaders/triangle.frag.wgsl

@@ -0,0 +1,4 @@
+@fragment
+fn main(@location(0) inColor: vec3<f32>) -> @location(0) vec4<f32> {
+    return vec4<f32>(inColor, 1.0);
+}

src/shaders/triangle.vert.wgsl

@@ -0,0 +1,13 @@
+struct VSOut {
+    @builtin(position) Position: vec4<f32>,
+    @location(0) color: vec3<f32>,
+ };
+
+@vertex
+fn main(@location(0) inPos: vec3<f32>,
+        @location(1) inColor: vec3<f32>) -> VSOut {
+    var vsOut: VSOut;
+    vsOut.Position = vec4<f32>(inPos, 1.0);
+    vsOut.color = inColor;
+    return vsOut;
+}