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watchos_glsl Watch App/test1.metal

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+//
+//  test1.metal
+//  watchos_glsl Watch App
+//
+//  Created by Beppe Vanrolleghem on 01/06/2024.
+//
+
+#include <metal_stdlib>
+using namespace metal;
+#include <SceneKit/scn_metal>
+
+struct Uniforms {
+    float2 resolution;
+    float time;
+};
+
+struct FragmentIn {
+    float4 position [[position]];
+    float2 st;
+};
+
+[[fragment]]
+float4 fragment_main(FragmentIn in [[stage_in]],
+                     constant Uniforms &uniforms [[buffer(0)]]) {
+    float3 color = float3(1.,.0,.0);
+    return float4(color, 1.);
+}
+
+[[stitchable]]
+half4 testfn(float2 position, half4 color) {
+    
+    return color;
+}