getting closer to a cube

shaders/cube.wgsl

@@ -0,0 +1,27 @@
+struct VertexOutput {
+    @location(0) color: vec3<f32>,
+    @builtin(position) position: vec4<f32>
+};
+
+struct Locals {
+    transform: mat4x4<f32>
+};
+
+@group(0) @binding(0)
+var r_locals: Locals;
+
+@vertex
+fn vs_main(
+    @location(0) position: vec4<f32>,
+    @location(1) color: vec3<f32>,
+) -> VertexOutput {
+    var out: VertexOutput;
+    out.color = color;
+    out.position = r_locals.transform * position;
+    return out;
+}
+
+@fragment
+fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
+    return vec4<f32>(in.color.r, in.color.g, in.color.b, 1.0);
+}

shaders/shader.wgsl

@@ -1,11 +1,26 @@
+
+
 @vertex
 fn vs_main(@builtin(vertex_index) in_vertex_index: u32) -> @builtin(position) vec4<f32> {
     let x = f32(i32(in_vertex_index) - 1);
     let y = f32(i32(in_vertex_index & 1u) * 2 - 1);
     return vec4<f32>(x, y, 0.0, 1.0);
+
+    // param 0
+    // x = -1
+    // y = -1
+
+    // param 1
+    // x = 0
+    // y = 1
+
+    // param 2
+    // x = 1
+    // y = -1
+
 }
 
 @fragment
 fn fs_main() -> @location(0) vec4<f32> {
-    return vec4<f32>(1.0, 0.0, 0.0, 1.0);
+    return vec4<f32>(0.0, 0.0, 1.0, 1.0);
 }