<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=600">
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>WebMetal Simple demo</title>
<link rel="stylesheet" href="shared.css">
<link rel="stylesheet" href="https://webkit.org/wp-content/themes/webkit/style.css">
<link rel="stylesheet" href="https://www.apple.com/wss/fonts?family=Myriad+Set+Pro&amp;v=1">
<script src="gl-matrix-min.js"></script>
<script src="shared.js"></script>
<script src="simple.js"></script>
<script id="library" type="x-shader/x-metal">
#include <metal_stdlib>

using namespace metal;

struct Vertex
{
    float4 position [[position]];
    float4 color;
};

struct Uniform
{
    float4x4 modelViewProjectionMatrix;
};

vertex Vertex vertex_main(device Vertex *vertices [[buffer(0)]],
                          constant Uniform *uniforms [[buffer(1)]],
                          uint vid [[vertex_id]])
{
    Vertex vertexOut;
    vertexOut.position = uniforms->modelViewProjectionMatrix * vertices[vid].position;
    vertexOut.color = vertices[vid].color;

    return vertexOut;
}

fragment float4 fragment_main(Vertex vertexIn [[stage_in]])
{
    return float4(vertexIn.color);
}
</script>
</head>
<body>
<canvas></canvas>
<div id="error">
    <h2>WebMetal not available</h2>
    <p>
        Make sure you are on a system with WebMetal enabled. In
        Safari, first make sure the Developer Menu is visible (Preferences →
        Advanced), then Develop → Experimental Features → Enable WebMetal.
    </p>
</div>
</body>
</html>