struct Output { [[builtin(position)]] Position : vec4<f32>; [[location(0)]] color : vec4<f32>; }; [[stage(vertex)]] fn main([[builtin(vertex_index)]] VertexIndex : u32, [[builtin(instance_index)]] InstanceIndex : u32) -> Output { var zv : array<vec2<f32>, 4> = array<vec2<f32>, 4>(vec2<f32>(0.200000003, 0.200000003), vec2<f32>(0.300000012, 0.300000012), vec2<f32>(-0.100000001, -0.100000001), vec2<f32>(1.100000024, 1.100000024)); let z : f32 = zv[InstanceIndex].x; var output : Output; output.Position = vec4<f32>(0.5, 0.5, z, 1.0); var colors : array<vec4<f32>, 4> = array<vec4<f32>, 4>(vec4<f32>(1.0, 0.0, 0.0, 1.0), vec4<f32>(0.0, 1.0, 0.0, 1.0), vec4<f32>(0.0, 0.0, 1.0, 1.0), vec4<f32>(1.0, 1.0, 1.0, 1.0)); output.color = colors[InstanceIndex]; return output; }